1,505 results on '"fish waste"'
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2. Fish waste biorefinery: A novel approach to promote industrial sustainability
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Gill, Javaeria Maqsood, Hussain, Syed Makhdoom, Ali, Shafaqat, Ghafoor, Abdul, Adrees, Muhammad, Nazish, Nadia, Naeem, Adan, Naeem, Eman, Alshehri, Mohammed Ali, and Rashid, Eram
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- 2025
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3. Exploring the wound healing potential of biocompatible nano-hydroxyapatite derived from parrotfish scale (Scarrus ghobban) waste for bone tissue engineering
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Parthasarathy, Surya, Arulselvan, Palanisamy, Gosala, Radha, and Subramanian, Balakumar
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- 2025
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4. Recovery of alkaline proteinases from fisheries wastes: biochemical characterization and applications.
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Friedman, Ivana Soledad, Contreras, Edgardo Martín, and Fernández‐Gimenez, Analia Verónica
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SODIUM dodecyl sulfate , *FISH waste , *PROTEINASES , *BIOTECHNOLOGY , *OXIDIZING agents - Abstract
Fish visceral waste, which is normally discarded, is considered one of the richest sources of proteinases with potential biotechnological applications. For this reason, alkaline proteinases from viscera of Argentine hake Merluccius hubbsi, Brazilian flathead Percophis brasiliensis, Brazilian codling Urophycis brasiliensis, and stripped weakfish Cynoscion guatucupa were characterized. Individuals were caught by a commercial fleet off the coast of the Argentinean Sea. The intestine and pyloric caeca were dissected out and then minced and triturated with distilled water. The proteinase activity of P. brasiliensis extracts was enhanced by all the ions tested (Mn2+, K+, Na+, Ca+2) while the enzymes of the other species were stable in the presence of those ions, retaining more than 60% of their enzymatic activity. Alkaline proteinases of all species showed extreme stability to 5% v/v surfactants at 60 min (Sodium dodecyl sulfate, Triton X‐100, Tween 20, Tween 80), and relative stability toward an 6% v/v oxidizing agent (H2O2) and organic solvents 80% (acetone, isopropanol, methanol, ethanol). The enzyme extracts were incubated for 60 min with these compounds. Interestingly, alkaline proteinases from all species were compatible with the commercial detergents (Ala, Skip, and Ace). These results demonstrate that proteinases recovered from a no‐cost sample such as fishery residues can be used for industrial applications, such as detergent formulations. [ABSTRACT FROM AUTHOR] more...
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- 2024
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5. Advancements in energy storage applications: harnessing the potential of fish industry waste.
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Rajput, Vishal, Naik, Bindu, Kumar, Vijay, Kumar, Vivek, Bhatt, Saurav Chandra, and Rustagi, Sarvesh
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FISH waste ,CARBON-based materials ,MATERIALS science ,ELECTRODE performance ,PHYSICAL & theoretical chemistry - Abstract
This review paper provides a comprehensive overview of recent advancements in energy storage applications, focusing on the utilization of fish industry waste as a sustainable resource. The paper is structured into several key sections, each highlighting a different aspect of this emerging field. Firstly, it explores the use of nanoporous carbons for high-density lithium-ion battery (LIB) anodes, discussing their potential to enhance energy storage capabilities. Secondly, it examines the development of advanced LIB anodes from fish waste-derived nanostructures, showcasing novel approaches to material synthesis. Additionally, the paper delves into the utilization of biomass-derived carbons for sodium-ion battery (NIB) anodes, presenting insights into their role in advancing energy storage technology. Furthermore, it discusses the integration of biomass-derived porous carbons to improve the performance of lithium-sulfur batteries, highlighting strategies to overcome existing limitations. Moreover, the paper explores the application of biomass-derived carbon materials in supercapacitors, emphasizing their potential for high-performance energy storage solutions. Lastly, a significant focus is placed on protein batteries, a novel concept that utilizes seafood waste as a sustainable source for energy storage. The paper elaborates on the processes involved in transforming fish waste into suitable materials for battery electrodes and evaluates the performance of these protein batteries in terms of efficiency, stability, and capacity. Through a structured analysis of recent advancements, this review underscores the potential of biomass-derived materials in addressing sustainability challenges while advancing energy storage technology. [ABSTRACT FROM AUTHOR] more...
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- 2024
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6. Optimizing Aquaponic Systems for Improved Food Production Efficiency in Climate‐Vulnerable Coastal Regions.
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Asadujjaman, Md., Salam, Md. Abdus, Chowdhury, Muhammad Tanvir Hossain, Alam, Sarker Mohammed Rafiqul, Albeshr, Mohammed Fahad, Arai, Takaomi, Hossain, M. Belal, and Bailey, Christyn
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AGRICULTURE , *NILE tilapia , *NATURAL disasters , *AQUAPONICS , *FISH waste - Abstract
Aquaponics, a sustainable agricultural approach, integrates aquaculture and hydroponics to optimize water consumption and enhance resource efficiency. The coastal region of Bangladesh, prone to frequent natural disasters, necessitates the development of resilient food production systems. In the present study, an adaptive aquaponic system was developed to evaluate the effectiveness of fish and vegetable production and assess the adoption process of this technology by the local communities to address climatic effects. The study design involved three treatment groups from the local communities, namely: local farmers (T1), school teachers (T2), and boat sailors (T3). The aquaponics system was stocked with monosex tilapia (Oreochromis niloticus) fry and various fast‐growing vegetable crops. The tilapia fry had an initial mean length of 7.1 ± 0.845 cm and weight of 10.02 ± 0.02 g and were introduced at a stocking density of 95 fry per 0.8 m³ in a 1000‐L capacity water tank. Seedlings of tomato, basil, turnip, cauliflower, and eggplant were planted in separate tubs and tank heads within the aquaponic systems. Results indicated that both fish and plant production in the treatment managed by local farmers surpassed that of other community groups. Treatment T1 demonstrated the highest fish production at 1542.69 ± 1.0 kg/ha/120 days, followed by T2 (1317.44 ± 0.37 kg/ha/120 days) and T3 (1278.204 ± 0.37 kg/ha/120 days). Similarly, turnip production mirrored this trend, with values of 8960 ± 672, 7440 ± 432, and 5120 ± 640 (kg/ha/120 days) for T1, T2, and T3, respectively. Tomato production ranked second highest production, with values of 5132.31 ± 361.85, 4520 ± 272, and 4349.6 ± 300.48 kg/ha/120 days in T1, T2, and T3, respectively. The measured water quality parameters were recorded as follows: temperature at 20.17 ± 0.23°C, dissolved oxygen (DO) at 5.80 ± 0.55 mg/L, pH at 8.04 ± 0.11, NH3─N at 0.26 ± 0.01 mg/L, NO2─N at 0.35 ± 0.01 mg/L, NO3─N at 0.03 ± 0.01 mg/L, and PO4─P at 0.43 ± 0.01 mg/L. A survey on the implementation of the technology revealed that participants had positive perceptions regarding the effectiveness of the aquaponic system, with 76.67% strongly agreeing to adopt the technology for future fish and vegetable production. Significantly, there were no opposing views, demonstrating a high level of acceptance. The study highlights the need to assess the technology's effectiveness and community acceptance in other climatically vulnerable regions. [ABSTRACT FROM AUTHOR] more...
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- 2024
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7. Current status and the significance of local wisdom biofertilizer in enhancing soil health and crop productivity for sustainable agriculture: A systematic literature review.
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Irwandhi, I., Khumairah, F. H., Sofyan, E. T., Kamaluddin, N. N., Nurbaity, A., Herdiyantoro, D., and Simarmata, T.
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SUSTAINABLE agriculture , *SOIL fertility , *FISH waste , *BIBLIOMETRICS , *PLANT productivity , *MANGROVE plants , *MORINGA oleifera - Abstract
Soil fertility is recognized as a crucial factor in supporting plant growth and productivity. The utilization of biofertilizers as environmentally friendly fertilizers is aimed at enhancing soil fertility and plant productivity. This study aims to explore the potential of local material for developing local wisdom biofertilizers (LWB) for achieving sustainable agriculture. A systematic literature review was conducted using bibliometric analysis, Preferred Reporting Items for Systematic Reviews, and Meta- Analyses (PRISMA) method, employing the Scopus search engine with the keywords "local AND wisdom AND biofertilizer" OR "biofertilizer" OR "local AND microorganism" OR "soil AND health OR crop AND productivity OR sustainable agriculture". The search yielded 704 articles, of which 11 were deemed eligible after selection. Based on the literature review, it was found that there are local materials, including fish waste, seaweed, Azolla, fruit waste, Moringa oleifera, microalga, bamboo roots, banana hump, golden snail, mangrove leaves, fruit, and vegetable waste that can be used as raw materials for LWB to improve soil health, plant growth, and productivity. The development of LWB as a new fertilizer technology faces challenges such as lack of regulations, low public trust, limited farmer awareness, weak promotion, and raw material shortages. Further research is needed to intensively study and enhance the effectiveness of LWB through enrichment using beneficial microorganisms. [ABSTRACT FROM AUTHOR] more...
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- 2024
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8. Applying acoustic telemetry, vessel tracking and fisher knowledge to investigate and manage fisher-shark conflict at Lord Howe Island, Australia.
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Mitchell, Jonathan D., Camilieri-Asch, Victoria, Gudge, Sallyann, Jaine, Fabrice R. A., Peddemors, Victor M., and Langlois, Tim J.
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ACOUSTIC receivers , *SHARK fishing , *FISH waste , *FISHERY sciences , *AGRICULTURAL ecology - Abstract
Fisher-shark conflict is occurring at Lord Howe Island, Australia due to high levels of Galapagos shark (Carcharhinus galapagensis) depredation (where sharks consume hooked fish) and bycatch. Depredation causes costly loss of target catch and fishing gear and increased mortality of target species, and sharks can be injured or killed when bycaught. This study applied acoustic telemetry and vessel tracking from 2018 to 2021 to identify; (1) how the movements of 30 tagged sharks and activity of six fishing vessels overlapped, and (2) where key 'hotspots' of overlap occurred. Fisher surveys were also conducted to collect information about mitigating shark interactions. Residency index analysis indicated that three sharks tagged at a fish waste dumping site had markedly higher residency. Core home ranges of sharks overlapped with higher fishing activity at four 'hotspots'. Statistical modelling indicated positive linear effects of fishing activity and bathymetric complexity on shark detections and tagged sharks were present for 13% of the total time that vessels were fishing close to acoustic receivers. Spatio-temporal overlaps between shark movements and fishing activity could potentially have occurred because sharks learned to associate fishing vessels with food (i.e. hooked fish) and because fishers and sharks utilise highly productive shelf edge areas, however more research is needed to investigate these relationships. Fishers reported that rotating fishing areas and reducing time at each location, fishing deeper than 100 m, and using electric reels and lures instead of bait, reduced bycatch and depredation. The integrated approach used here identified practical methods for reducing fisher-shark conflict, improving socio-economic outcomes for fishers and conservation prospects for this unique shark population. [ABSTRACT FROM AUTHOR] more...
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- 2024
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9. Upcycling Fishing Net Waste and Metal Oxide from Electroplating Waste into Alga Cultivation Structures with Antibacterial Properties.
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Barros, Daniel, Nobre, Luís, Antunes, Joana, Bessa, João, Cunha, Fernando, Mota, Carlos, Gomes, Fernanda, Henriques, Mariana, and Fangueiro, Raul
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FISHING nets , *METAL wastes , *INDUSTRIAL wastes , *COMPRESSION molding , *FISH waste - Abstract
Plastic waste, especially discarded fishing nets, and electroplating sludges pose significant environmental challenges, impacting marine ecosystems and contributing to pollution. In alga cultivation, invasive microorganisms often hinder growth, necessitating strategies to combat these issues. This study aimed to develop recycled substrates for alga cultivation by repurposing fishing nets and enhancing their surfaces with antibacterial properties using copper oxide (CuO). Additionally, it explores the reuse of CuO from electroplating sludge, providing a sustainable solution that addresses both marine and industrial waste while supporting healthy alga development. Recycled substrates were produced, with different proportions of pure CuO and sludge (1 and 2 wt%) incorporated on the surface. These compositions were processed by hot compression molding and then the antibacterial activity was characterized using a qualitative and quantitative method. The results indicate the possibility of recycling fishing net into new substrates to alga cultivation and the functionalization of their surface using CuO as an antibacterial agent. The antibacterial tests showed a better activity for pure CuO compared to the residual sludge, and better for the higher surface concentration of 2 wt%. Despite the limited bacterial inhibition observed, there is an opportunity for reusing these sludges, typically disposed of in landfills, to obtain specific antibacterial agents that can be applied to the surface of substrates for algal growth. [ABSTRACT FROM AUTHOR] more...
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- 2024
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10. METHANIZATION OF FISH WASTE FOR THE PRODUCTION OF RENEWABLE ENERGY: PROSPECTS FOR TRADITIONALLY FRIED MOROCCAN FISH*.
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El Boutalbi, Yousra, Chiki, Zineb, Jafrane, Chaimaa, Hazm, Jamal Eddine, El Idrissi, Najiba El Amrani, Katina, Joana, and Kandri, Noureddine Idrissi
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FISH waste ,RENEWABLE energy sources ,ANAEROBIC digestion ,FISH farming ,TRADITIONAL farming - Abstract
Methanization, also known as anaerobic digestion, is an innovative and environmentally friendly approach that reduces and adds value to harmful bio-organic waste. The valorisation of fish waste, especially from traditional fish farming in Morocco, can be achieved by converting this type of waste into biogas, making it a renewable energy source with no ecological impact. In this article, we discuss the theoretical basis of methanization, the different reactor technologies available, the recent advances in the field and the potential uses of the biogas produced. It highlights the benefits of anaerobic digestion of bio-organic waste and the potential applications for fish waste to improve the methanization process and maximise the environmental and energy benefits. [ABSTRACT FROM AUTHOR] more...
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- 2024
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11. Fish Scales for Wearable Patches: Tailoring Films Assembled From Fish Waste Gelatin, Carbon Dots and Chitin Nanocrystals.
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Segato, Jacopo, Calmanti, Roberto, Gnoato, Gianmarco, Cavarzerani, Enrico, Rizzolio, Flavio, Crestini, Claudia, Perosa, Alvise, Gigli, Matteo, and Selva, Maurizio
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FISH waste ,STRIPED mullet ,SCALES (Fishes) ,EUROPEAN seabass ,ELASTIC modulus - Abstract
The properties of gelatin and collagen extracted from fishery wastes, specifically from mullet (Mugil Cephalus) scales, are modified with the aim to achieve biocompatible films with tunable characteristics to design sustainable UV protection solutions in the healthcare sector. Different additives are used to the scope including plasticizers, cross‐linkers, surfactants and optical modifiers. Carbon dots (CDs) obtained from seabass (Dicentrarchus labrax) scales combined with polysorbate‐20 (PS) as a dispersant agent, enable the fabrication of materials capable of blocking UV radiation almost completely, a crucial feature for dermal contact applications. The addition of hydrophobic surfactants and crosslinkers as citric acid, chitosan and surface deacetylated chitin nanocrystals (CsNCs) allowed to modulate the water adsorption of the films in the range 3–30% and to reach a twofold and 4.5‐fold increase of tensile strength and elastic modulus, respectively, as compared to the neat gelatin film. Moreover, film thickness is shown to be another adjustable parameter to enhance optic, mechanical, and permeation properties: the higher the thickness, the greater the UV‐blocking properties, elongation‐at‐break and water vapor permeability, leading to films with attractive characteristics as wearable patches. [ABSTRACT FROM AUTHOR] more...
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- 2024
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12. A Comprehensive Review of Fish Protein Hydrolysates Targeting Pet Food Formulations.
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Ribeiro, Tânia Bragança, Maia, Margarida R. G., Fonseca, António J. M., Marques, Bianca, Caleja, Cristina, Rosa, Ana, Martins, Rui, Almeida, André, Mota, Maria J., Aires, Tiago, Rocha, Cristina M. R., Teixeira, José A., Cabrita, Ana R. J., Barros, Lillian, and Pintado, Manuela more...
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PROTEIN hydrolysates , *FISH waste , *ANIMAL nutrition , *TECHNOLOGICAL innovations , *CIRCULAR economy , *PREBIOTICS - Abstract
The fish industry generates significant amounts of fish by- and co-products (FBCPs) annually, projected to reach 160.8 million tonnes by 2030. This growth highlights the urgent need for sustainable FBCP management and an opportunity to improve the sector’s environmental sustainability. Fish protein hydrolysates (FBCPHs) and bioactive peptides (BPs) derived from these FBCPs are gaining recognition in the pet food sector for their nutritional and bioactives benefits. FBCPHs, primarily sourced from category 3 by-products unsuitable for human consumption, could significantly enhance the economic viability of both industries. This review analyzes production processes, highlighting the benefits and challenges of enzymatic hydrolysis and reviewed emerging technologies such as subcritical water hydrolysis (SWH), which are promising sustainable alternatives by enhancing extraction efficiency and reducing energy consumption. The review explores FBCPHs’ applications in pet food, focusing on beneficial biological activities (e.g. antioxidant, prebiotic, neuroprotective). Findings show FBCPHs have significant potential in pet food formulations, providing palatability, hypoallergenic benefits, and addressing health concerns like gastrointestinal disorders and stress-related behaviors. However, further research is required to optimize production processes, scale industrial application, and ensure regulatory compliance. In conclusion, FBCPHs present a valuable solution for promoting sustainability, improving pet nutrition, and supporting the circular economy. [ABSTRACT FROM AUTHOR] more...
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- 2024
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13. Assessing functional properties of diet protein hydrolysate and oil from fish waste on canine immune parameters, cardiac biomarkers, and fecal microbiota.
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Cabrita, Ana R. J., Barroso, Carolina, Fontes-Sousa, Ana Patrícia, Correia, Alexandra, Teixeira, Luzia, Maia, Margarida R. G., Vilanova, Manuel, Yergaliyev, Timur, Camarinha-Silva, Amélia, and Fonseca, António J. M. more...
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ANGIOTENSIN converting enzyme ,FISH waste ,FISH oils ,LEFT heart atrium ,PROTEIN hydrolysates ,BEAGLE (Dog breed) - Abstract
Locally produced fish hydrolysate and oil from the agrifood sector comprises a sustainable solution both to the problem of fish waste disposal and to the petfood sector with potential benefits for the animal's health. This study evaluated the effects of the dietary replacement of mainly imported shrimp hydrolysate (5%) and salmon oil (3%; control diet) with locally produced fish hydrolysate (5%) and oil (3.2%) obtained from fish waste (experimental diet) on systemic inflammation markers, adipokines levels, cardiac function and fecal microbiota of adult dogs. Samples and measurements were taken from a feeding trial conducted according to a crossover design with two diets (control and experimental diets), six adult Beagle dogs per diet and two periods of 6 weeks each. The experimental diet, with higher docosahexaenoic (DHA) and eicosapentaenoic (EPA) acids contents, decreased plasmatic triglycerides and the activity of angiotensin converting enzyme, also tending to decrease total cholesterol. No effects of diet were observed on serum levels of the pro-inflammatory cytokines interleukin (IL)-1β, IL-8, and IL-12/IL-23 p40, and of the serum levels of the anti-inflammatory adipokine adiponectin. Blood pressure, heart rate and echocardiographic measurements were similar between diets with the only exception of left atrial to aorta diameter ratio that was higher in dogs fed the experimental diet, but without clinical relevance. Diet did not significantly affect fecal immunoglobulin A concentration. Regarding fecal microbiome, Megasphaera was the most abundant genus, followed by Bifidobacterium , Fusobacterium , and Prevotella , being the relative abundances of Fusobacterium and Ileibacterium genera positively affected by the experimental diet. Overall, results from the performed short term trial suggest that shrimp hydrolysate and salmon oil can be replaced by protein hydrolysate and oil from fish by-products without affecting systemic inflammatory markers, cardiac structure and function, but potentially benefiting bacterial genera associated with healthy microbiome. Considering the high DHA and EPA contents and the antioxidant properties of fish oil and hydrolysate, it would be worthwhile in the future to assess their long-term effects on inflammatory markers and their role in spontaneous canine cardiac diseases and to perform metabolomic and metagenomics analysis to elucidate the relevance of microbiota changes in the gut. [ABSTRACT FROM AUTHOR] more...
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- 2024
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14. Winter population of raptor species in the Vellalore dump yard of Coimbatore City, India.
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Balaji, V. and Venkitachalam, R.
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FISH waste ,BIRD populations ,HABITAT conservation ,FALCONIFORMES ,SCAVENGERS (Zoology) - Abstract
A study from December 2020 to March 2021 in the Vellalore dump yard, Coimbatore City in southern India recorded 34 bird species, including seven raptors. Notably, two vulnerable species of winter migrant raptors, the Greater Spotted Eagle Aquila clanga, and the Tawny Eagle Aquila rapax were the most frequently observed. The presence of cow carcasses, poultry, and fish waste in the dump yard attracted scavenger birds, particularly raptors. The study utilized the systematic vantage point method to gather data and aims to establish a baseline understanding of the winter raptor population and other bird species in the garbage dump yard. This research serves as a foundation for long-term monitoring and conservation efforts. [ABSTRACT FROM AUTHOR] more...
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- 2024
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15. Metataxonomic Analysis of Microbial Communities in Aquaponic Systems at Two Facilities in the Midwest United States.
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Rogge, Matthew L., Impullitti, Ann E., Phelps, Nicholas B. D., and Bailey, Christyn
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MICROBIAL communities , *FISH waste , *PLANT nutrients , *BIOFILTRATION , *PLANT species - Abstract
Aquaponic production relies on microbial activity to convert fish wastes into nutrients for plants. An aquaponic system contains multiple compartments that each have varying environmental pressures that can impact the types of microbes living in the compartment. Furthermore, differences in fish and plant species, system startup and management, and water source can impact microbial communities that colonize an aquaponic system. In this study, we sampled two aquaponic facilities that each operated six replicate aquaponic systems. Metataxonomic analyses were performed on the samples to compare the microbial communities of aquaponic facilities in Minnesota (MN) and Wisconsin (WI), assess the consistency of the microbial communities across multiple systems within a single facility, and evaluate the abundance and types of microbes present within each compartment of a system. Proteobacteria, Bacteroidetes, and Actinobacteria were common in both facilities, but nitrifying organisms were in greater abundance at the WI facility. Microbial communities were largely consistent among systems within a facility, but microbial communities among different compartments of the systems varied. Nitrifying organisms were primarily associated with the biofilter compartment of the MN systems but were found throughout the WI systems, which do not have a dedicated biofiltration compartment. While nitrifying organisms have an important role in an aquaponic system, they comprise less than 10% of the total microbial community of the aquaponic systems we sampled. Other taxa are likely to have equally important roles in the productivity of an aquaponic system, but those taxa and their functions have not been well characterized, and it is unclear how system startup, management, and other factors impact colonization and maintenance of these taxa. [ABSTRACT FROM AUTHOR] more...
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- 2024
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16. Bioenergy products sequestration proportions among three mixotrophically cultivated microalgae by remediating two organic waste resources.
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Vidya, Delampady, Kadri, Mohammad Sibtain, Mallikarjun Honnad, Aishwarya, Karicheri, Nayana, Muthiyal Prabakaran, Sudhakar, and Kulanthaiyesu, Arunkumar
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CLEAN energy , *DAIRY waste , *FISH waste , *SUSTAINABILITY , *ALPHA-linolenic acid , *ASTAXANTHIN - Abstract
Abstract\nNOVELTY STATEMENTIn this study, three microalgae species were cultivated using dairy and fish wastewater:
Haematococcus pluvialis, Coelastrella saipanensis , andChlorella sp. The process involved manipulating various physicochemical conditions, to determine optimal growth parameters. Our evaluation considered cell count, biomass productivity, specific growth rate, pigments, carbohydrates, proteins, lipid compositions, and cellulose stored in microalgae. A significant observation of highest cellulose accumulation was recorded inC. saipanensis cultivated in dairy waste (DW) medium (2.54 ± 0.042 µg/mg). In contrast, the species grown in fish waste (FW) media recorded a lower level (0.9405 ± 0.06 µg/mg) of cellulose. In DW,H. pluvialis andC. saipanensis accumulated substantial amounts of astaxanthin and carotenoid, respectively. Carbohydrate, protein, and lipid accumulation was maximized in DW culture, withH. pluvialis exhibiting a more incredible carbohydrate content. Lipid analysis showed asChlorella sp. was capable of accumulating alpha-linolenic acid. The disparity may be attributed to DW’s nutritional and mineral content, which encourages cellulose deposition. The FTIR analysis confirmed the accumulation of cellulose. These findings underscore the potential of DW and FW media as valuable resources for microalgal biofuel and ethanol production, offering a hopeful future for sustainable energy production.The comparative analysis of microalgae cultivated in DW and FW water reveals distinct carbon sequestration patterns and bio-capture potential, observed from this study. In fact, this study identifiedC. saipanensis , which thrives exceptionally well in DW water and accumulate cellulose, a unique finding that pave the way on further research in this species on bioenery sequestration. By confirming the feasibility of bioproducts harvesting through compound analysis, this study highlights the potential of DW and FW as cheap nutrient resources for microalgae biomass generation, paving the way to bioremediation. [ABSTRACT FROM AUTHOR] more...- Published
- 2024
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17. Utilization of fish protein isolates to supplement oat-based cookies and assessment of end product quality.
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Baraiya, Kirankumar Gopalbhai, Bojayanaik, Manjanaik, Surasani, Vijay Kumar Reddy, Chavan, Sachin Dnyanoba, Chavan, Mayuri Radhesham, Lende, Smit Ramesh, and Alandur, Veena Shetty
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ESSENTIAL amino acids ,FISH waste ,FISHERY processing ,COOKIES (Computer science) ,TAMBAQUI - Abstract
Bullseye and Pacu fish processing waste were valorized through its conversion into functional protein isolates, followed by the utilization of recovered proteins to supplement oat-based cookies at different levels (0, 2, 4, 6, 8 and 10 g/100 g) and baking temperatures (100, 150, 170, 180, 190 ˚C). With different replacement ratios and baking temperatures, the best selection was made at (4 and 6%) and baking temperatures (160 and 170 ˚C) for BPI (Bullseye protein isolate) and PPI (Pacu protein isolate) based cookies, respectively based on sensory and textural characteristics. The developed products were analyzed for its nutritional, physical, textural, and sensory quality. No significant differences were found in the moisture and ash contents of the cookies from different lots, while the protein content was highest for cookies with 6% PPI. The spread ratio was lower reported for the control cookies compared to the fish protein isolate-based counterpart (p < 0.05), and it decreased with increasing thickness of cookies. Significantly higher total essential amino acid values were obtained in cookies supplemented with 6% Pacu protein isolates, whereas 4% Bullseye protein isolate-supplemented cookies were higher in total non-essential amino acid content. The total plate count was higher in control cookies (0.35 ± 0.33 cfu/g) compared to fish protein isolate-supplemented cookies. The hardness values were maximum for control group cookies (19.14 ± 0.98 N) compared to protein isolate incorporated cookies (17.22 ± 1.05 N and 16.26 ± 0.9 N). However, the difference among the all-treatment group is not significant (p > 0.05). [ABSTRACT FROM AUTHOR] more...
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- 2024
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18. Comparative efficiency of native and non-native starter culture in the production of bio-silage using composite waste from fish and vegetables.
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Ghosh, Subal Kumar, Lekshmi, Manjusha, Reddy, Ramakrishna, Balange, Amjad Khansaheb, Xavier, Martin, and Nayak, Binaya Bhusan
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LACTIC acid bacteria ,FISH waste ,LACTOBACILLUS acidophilus ,ENTEROCOCCUS faecalis ,FISHERY processing - Abstract
The efficiency of native and non-native starter cultures in the production of bio-silage using composite waste from fish and vegetables was studied. An ensilage experiment was conducted in a natural way (without starter culture) of composite waste (fish to vegetable at 80 to 20%) to isolate the native fermentative microflora. An Enterococcus faecalis strain isolated from the natural ensilage of composite waste showed higher efficiency over other commercial LAB strains generally used for ensilation. A total of 60 isolates were screened and characterized biochemically from ensilaged composite waste. Among them, 12 proteolytic and lipolytic positive isolates were identified as Enterococcus faecalis, based on a BLAST search of the 16S rRNA gene sequences. Subsequently, composite bio-silage was prepared by inoculating starter cultures with three (3) treatments T1 (native—Enterococcus faecalis), T2 (non-native—Lactobacillus acidophilus), T3 (a mixture of E. faecalis and L. acidophilus) and compared with control (composite bio-silage without starter culture). The highest non-protein nitrogen (0.78 ± 0.01 mg of N /100 g) and degree of hydrolysis (70.00 ± 0.06% of protein/100 g) was seen in the T3 sample, and the lowest (0.67 ± 0.02 mg of N/100 g and 50.40 ± 0.04% of protein/100 g) was seen in the control. At the end of ensilation, the pH fell (5.95–3.88) in conjunction with the formation of lactic acid (0.23–2.05 g of lactic acid/100 g), and the lactic acid bacteria count nearly doubled (log 5.60–10.60). The lipid peroxidation products PV (0.11–0.41 milli equivalent of oxygen/kg of fat) and TBARs (1.64–6.95 mg of malonaldehyde/kg of silage) were changed within a reasonable range in the following pattern Control > T2 > T3 > T1, which led to oxidatively stable products. The findings revealed that native starter culture E. faecalis, which can be employed as a single or in combination with non-native L. acidophilus, performed better in the bio-ensilation process. Additionally, the finished composite bio-silage can be used as a novel, protein-carbohydrate rich feed component to help manage wastes from both sectors. [ABSTRACT FROM AUTHOR] more...
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- 2024
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19. Fabrication and characterization of extracted microsized chitosan embedded PVDF membrane for wastewater treatment.
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Datta, Deepshikha, Kumar, Nitin, Bhangar, Priyasi, Das, Sudipta K., Koutavarapu, Ravindranadh, and Das, Bimal
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POLYVINYLIDENE fluoride , *WASTEWATER treatment , *SCALES (Fishes) , *FISH waste , *CONTACT angle - Abstract
Critical water crisis due to overpopulation, industrialization and urbanization has resulted to the shortfall of providing safe drinking water to one billion people in the world. This work intends to fabricate modified hydrophobic polyvinylidene fluoride (PVDF) membrane by hydrophilic chitosan extracted from waste fish scales for wastewater treatment. Chitosan was blended with PVDF in N-methyl-2-pyrrolidone solution by solution casting method. Three different concentrations of 1, 3 and 5 wt% of chitosan were taken. The morphological, spectral and thermal analysis of the produced films were elaborately studied. The contact angle decreased with the increase of chitosan content from 82.64° to 60.97°. The tensile strength decreases from 1.11 to 0.38 MPa and Young’s modulus decreased from 12.08 to 7.4 MPa with increase in chitosan content in the film from 1 to 3 %. The performance of microparticle embedded membrane was compared with the pristine PVDF membrane, and it was affirmed that the microsized-chitosan embedded PVDF membrane manifests a broad promising application perspective towards wastewater treatment owing to its excellent water flux (76 L m−2 h−1) as well as antibacterial properties. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
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20. Impact of Bond–Slip Models on Debonding Behavior in Strengthened RC Slabs Using Recycled Waste Fishing Net Sheets.
- Author
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Nguyen, Huy Q., Han, Taek Hee, Park, Jun Kil, and Kim, Jung J.
- Subjects
- *
WASTE recycling , *FISHING nets , *FISH waste , *SHEARING force , *REINFORCED concrete , *CONCRETE slabs - Abstract
This study investigated the performance of recycled waste fishing net sheets (WSs) as a sustainable strengthening material for reinforced concrete (RC) slabs. The primary challenge addressed is the debonding failure caused by the low bond strength at the WS-to-concrete interface. To analyze this, two full-scale RC slabs—one with and one without strengthening—were cast and tested under a four-point bending setup. Finite element (FE) models incorporating existing bond–slip laws were developed using the ABAQUS software to simulate the strengthened slab's behavior. A sensitivity analysis was performed to assess the impact of bond–slip parameters on the failure mechanism. Experimental results indicated that the WS-strengthened slab enhanced the RC slab capacities by 15% in yield load and 13% in initial stiffness. Furthermore, the maximum shear stress of 0.5τmax or interfacial fracture energy of 0.2Gf, compared to values proposed by Monti et al., enabled the simulation of the global response observed in the experiment. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
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21. Recycling catfish bone for additive manufacturing of silicone composite structures.
- Author
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Aqerrout, Saad, Wu, Di, Yu, Fei, Liu, Wenbo, Han, Yuke, Lyu, Jiaqi, Jing, Yi, and Yang, Xiaoran
- Subjects
- *
FUSED deposition modeling , *CHANNEL catfish , *FISH waste , *THREE-dimensional printing , *ANIMAL products , *CALCIUM supplements - Abstract
As a notable commercial aquaculture species, channel catfish (Ictalurus punctatus) in US faces challenges including the global market competition and enhanced feed costs. Since fish bone waste is a major source of calcium and hydroxyapatite, re-utilization gives birth to several advanced products in the development of animal feed, fertilizers, and nutrition supplements. Recent research findings introduce fish bone powder (FBP) reinforcement in Fused Deposition Modeling (FDM) of plastic composites. However, FBP so far has not been widely utilized for Direct Ink Writing (DIW) 3D printing of silicone composite. In this paper, catfish bone waste has been recycled and processed with a thermal procedure. FBP reinforced silicone composite structures have been developed and manufactured using low-viscosity DIW 3D printing. Morphological and chemical structures of FBPs were analyzed and compared before and after calcination. The rheological and mechanical characterization have indicated the potential of calcinated FBP in advancing the silicone composites. With 0%–50% weight percentages of FBP, composite samples can be designed to get any specified mechanical response (0.5–1.4 MPa in 50% tension strain and 150–550 N in 30% compression strain). The shape holding, overhang, and dimensional accuracy of FBP reinforced silicone composites in single (DIW) and dual (FDM + DIW) 3D printing processes have been demonstrated and summarized. With appropriate adjustments, this FBP-based 3D printing technology can be applied to byproduct recycling of all the US food-fish species, poultry, and livestock. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
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22. Marine Resources Gels as Main Ingredient for Wound Healing Biomaterials: Obtaining and Characterization.
- Author
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Coman, Alina Elena, Marin, Maria Minodora, Roșca, Ana Maria, Albu Kaya, Madalina Georgiana, Constantinescu, Rodica Roxana, and Titorencu, Irina
- Subjects
BIOMEDICAL materials ,WOUND healing ,FISH waste ,MARINE resources ,REGENERATIVE medicine ,TISSUE scaffolds - Abstract
The skin, known as the largest organ of the body, is essential for maintaining physiological balance and acts as a barrier against the external environment. When skin becomes damaged and wounds appear on the skin's surface, a complex healing process, involving multiple types of cells and microenvironments, take place. Selecting a suitable dressing for a wound is crucial for accelerating healing, reducing treatment costs, and improving the patient's overall health. Starting from natural resources such as perch skin (P. fluviatilis), this article aims to develop biocompatible materials for regenerative medicine from collagen in the form of gels/gelatines. The extracted gels were physical/chemical and structurally analyzed. In order to obtain collagen scaffolds for wound healing, the extracted collagen gels from perch skin were further freeze-dried. The ability of these scaffolds is essential for controlling moisture levels during wound healing; therefore, it was necessary to investigate the samples' ability to absorb water. The assessed collagen-based scaffolds were microbiologically tested, and their biocompatibility was investigated by incubating human adult dermal fibroblasts. The outcomes reveal an innovative path for the production of biomaterials used in wound healing, starting from collagen derived from marine sources. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
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23. Enhancing Biogas Production Through the Co-Digestion of Fish Waste (FW) and Water Hyacinth (WH) Using Cow Dung as an Inoculum: Effect of FW/WH Ratio.
- Author
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Nahar, Gaurav, Koley, Apurba, Garai, Subhadip, Balachandran, Srinivasan, and Ross, Andrew B.
- Subjects
BIOGAS production ,CHEMICAL oxygen demand ,FISH waste ,PROPIONIC acid ,ACETIC acid - Abstract
The current investigation explores biogas production from water hyacinth (WH) and fish waste (FW) with cow dung (CD) as an inoculum source in two scenarios. In the first scenario, the optimization of mono-digestion was performed where the effect of WH/FW (substrates) with CD (inoculum) in varied ratios of 1:1, 1:2, 2:1, and 3:1 was observed to enhance the biogas production. In the second scenario, the optimization of co-digestion using both FW and WH as substrates in different ratios (1:1, 1:2, and 2:1) with a fixed amount of inoculum was studied. The experiments were conducted in 500 mL digesters in duplicate under mesophilic conditions. Under mono-digestion conditions for FW, the digester operating with FW/CD in a 1:2 ratio demonstrated the highest biogas yield of 970 ± 14.1 mL/g VS, containing 610 CH
4 mL/g VS, while in WH, the WH/CD ratio of 1:1 exhibited the highest biogas yield of 925 ± 49.4 mL/g VS, with a methane content of 440 CH4 mL/g VS. The co-digestion of the WH/FW ratio (1:1) showcased the highest biogas production of 1655 ± 91.92 mL/g VS, accompanied by 890 ± 70.7 CH4 mL/g VS. This was followed by the 1:2 and 2:1 ratio, yielding 1400 ± 56.5 and 1140 ± 169.7 mL/g VS. of biogas and 775 and 585 CH4 mL/g VS, respectively. The CD and WH mixture at a 1:1 ratio demonstrated the most significant decrease in chemical oxygen demand (COD), reaching 91.68%. COD reductions over 80% in all combinations were observed in all instances. Anaerobic digestion (AD) simulations were validated using the Gompertz model, with high correlation coefficient values (R-squared) above 0.99 for all of the studied ratios, depicting a significant correlation between experimental data and model predictions. The propionic to acetic acid ratio did not cross the threshold level, indicating no inhibition of methane production. ANOVA analysis of biogas production between the co-digestion and mono-digestion of substrates showed non-significant results (p > 0.310 and p > 0.824, respectively), while overall digestion was significant (p < 0.024), indicating efficiency variations among substrates. Paired sample t-tests revealed substantial differences between co-digestion ratios, which were also significant. [ABSTRACT FROM AUTHOR] more...- Published
- 2024
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24. Advancements in energy storage applications: harnessing the potential of fish industry waste
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Vishal Rajput, Bindu Naik, Vijay Kumar, Vivek Kumar, Saurav Chandra Bhatt, and Sarvesh Rustagi
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Fish waste ,Energy storage tools ,Biomass-derived material ,Seafood waste utilization ,Materials of engineering and construction. Mechanics of materials ,TA401-492 - Abstract
Abstract This review paper provides a comprehensive overview of recent advancements in energy storage applications, focusing on the utilization of fish industry waste as a sustainable resource. The paper is structured into several key sections, each highlighting a different aspect of this emerging field. Firstly, it explores the use of nanoporous carbons for high-density lithium-ion battery (LIB) anodes, discussing their potential to enhance energy storage capabilities. Secondly, it examines the development of advanced LIB anodes from fish waste-derived nanostructures, showcasing novel approaches to material synthesis. Additionally, the paper delves into the utilization of biomass-derived carbons for sodium-ion battery (NIB) anodes, presenting insights into their role in advancing energy storage technology. Furthermore, it discusses the integration of biomass-derived porous carbons to improve the performance of lithium-sulfur batteries, highlighting strategies to overcome existing limitations. Moreover, the paper explores the application of biomass-derived carbon materials in supercapacitors, emphasizing their potential for high-performance energy storage solutions. Lastly, a significant focus is placed on protein batteries, a novel concept that utilizes seafood waste as a sustainable source for energy storage. The paper elaborates on the processes involved in transforming fish waste into suitable materials for battery electrodes and evaluates the performance of these protein batteries in terms of efficiency, stability, and capacity. Through a structured analysis of recent advancements, this review underscores the potential of biomass-derived materials in addressing sustainability challenges while advancing energy storage technology. Graphical abstract more...
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- 2024
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25. Investigating the addition of rainbow trout visceral hydrolyzed protein on the quality properties of cooked hamburger.
- Author
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Shafiee, Samin, Khoshkhoo, Zhaleh, Goli, Mohammad, and Hosseini, Seyed Ebrahim
- Subjects
- *
FISH waste , *FISH as food , *RAINBOW trout , *PEPTIDES , *FOOD quality - Abstract
Fat oxidation during the storage period is one of the important factors in the deterioration of food quality. Hydrolyzed fish waste is one of the most important sources of bioactive peptides as a natural antioxidant. The purpose of this research is adding bioactive peptide that obtained from the enzymatic hydrolysis of rainbow trout waste (viscera) to the cooked hamburger formulation and measure the characteristics of the hamburger. Fish wastes were hydrolyzed in optimum conditions (temperature 59°C, time 118 minutes and concentration of 2% alcalase enzyme and then, 0.5, 1, 1.5 and 2% by weight, were added to the hamburger samples. A hamburger is also as a blank. The tests were performed in 3 repetitions and the averages were compared with Duncan's test to check the significance of the variables at P < 0.05 and the data were reported as mean ± standard deviation. The results showed that the cooked hamburger formulation contains 2% viscera by weight, has the highest percentage of cooked yield, fat and moisture retention, and the lowest amount of hardness, cooking loss and shrinkage. Using of a waste source, in order to turn it into a valuable product with antioxidant properties, lead to reduce the amount of fish waste and helps the environment. With this method, natural antioxidants can be used instead of synthetic sources. [ABSTRACT FROM AUTHOR] more...
- Published
- 2025
- Full Text
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26. Trends in fisheries waste utilization: a valuable resource of nutrients and valorized products for the food industry.
- Author
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Naseem, Shifa, Imam, Arfin, Rayadurga, Anantha Sreepada, Ray, Anjan, and Suman, Sunil Kumar
- Subjects
- *
FISH waste , *WASTE recycling , *ANIMAL feeds , *FISH oils , *ENRICHED foods - Abstract
The rise in fisheries production worldwide has caused a remarkable increase in associated anthropogenic waste. This poses significant concerns due to adverse environmental impacts and economic losses. Owing to its renewability, high abundance, and potential as a rich source of many nutrients and bioactive compounds, strategies have been developed to convert fish waste into different value-added products. Conventional and improved methods have been used for the extraction of biomolecules from fish waste. The extracted fish waste-derived value-added products such as enzymes, peptides, fish oil, etc. have been used to fortify different food products. This review aims to provide an overview of the nature and composition of fish waste, strategies for extracting biomolecules from fish waste, and the potential application of fish waste as a source of calcium and other nutrients in food fortification and animal feed has been discussed. In context to fishery waste mitigation, valorization, and circular bioeconomy approach are gaining momentum, aiming to eliminate waste while producing high-quality value-added food and feed products from fishery discards. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
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27. Waste nylon fishing net fiber incorporated natural rubber composites as a remedy for waste reusing into a value‐added material.
- Author
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Thilakarathne, K. N. D., Premachandra, J. K., and Mudiyanselage, T. Kuruwita
- Subjects
FISHING nets ,FISH waste ,WASTE recycling ,TENSILE strength ,CARBON-black - Abstract
This study focuses on reusing the waste fishing nets with natural rubber (NR) to create a value‐added composite material. WNF fibers at different loadings (2, 4, and 6 phr) and lengths (2, 3, 5, and 7 mm) were investigated for a general tire formulation. The anisotropic nature of WNF was evident in tear strength, with optimal results for 2 mm, 2 phr fiber loading. It displayed 15.87% improvement longitudinally compared with the control. Further, it displayed improved 5.55% hardness, whereas resilience, abrasion volume loss, and tensile strength were decreased. In the second stage, these fibers treated with KOH (2%, 6%, and 10%) with the expectation of enhancing the mechanical properties. The 2% KOH‐treated sample presented a significant escalation in hardness (+12.50%), resilience (+6.25%), abrasion volume loss (+3.63%), tear strength (+17.23%), and tensile strength (+8.20%) as of the control. Partial replacement of carbon black (CB) with 2% KOH treated 2 mm 2 phr WNF was evaluated. A 9% of CB in rubber compound was easily supersede by WNF. Our findings indicated that WNF fibers could be reuse as a filler in rubber composite where special property enhancements are advantageous in tire technology. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
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28. Northern shrimp (Pandalus borealis) protein hydrolyzate and oil promote flesh pigmentation and growth in post-smolt Atlantic salmon (Salmo salar).
- Author
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Plante, Sébastien, Béland, France, McNiven, Mary, and Gagnon, Jacques
- Subjects
- *
FISH waste , *ATLANTIC salmon , *COLORIMETRY , *FISH feeds , *SHRIMPS , *ASTAXANTHIN - Abstract
This study investigated the use of alternative ingredients obtained from Pandalus borealis by-products on flesh pigmentation and growth in post-smolt Salmo salar (initial weight of ~ 300 g). Four experimental diets were fed to fish in triplicate tanks for 16 weeks: a control diet and three other diets containing either synthetic astaxanthin, shrimp hydrolyzate, or shrimp oil. Fish that were fed the shrimp hydrolyzate diet exhibited higher red hue (based on L*a*b* data) when compared to fish fed the two other pigmented diets and had higher final weight. In addition, shrimp oil was found to be as efficient as artificial astaxanthin to increase the intensity of flesh pigmentation in Atlantic salmon. The shrimp hydrolyzate tested in our study provides an excellent source of astaxanthin and protein for Atlantic salmon. Likewise, shrimp oil could also constitute a natural source of astaxanthin and oil to this species. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
29. Ammonia excretion by the fish gill: discoveries and ideas that shaped our current understanding.
- Author
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Zimmer, Alex M.
- Subjects
- *
FISH physiology , *GENETIC techniques , *FISH waste , *OSMOREGULATION , *AMMONIA - Abstract
The fish gill serves many physiological functions, among which is the excretion of ammonia, the primary nitrogenous waste in most fishes. Although it is the end-product of nitrogen metabolism, ammonia serves many physiological functions including acting as an acid equivalent and as a counter-ion in mechanisms of ion regulation. Our current understanding of the mechanisms of ammonia excretion have been influenced by classic experimental work, clever mechanistic approaches, and modern molecular and genetic techniques. In this review, I will overview the history of the study of ammonia excretion by the gills of fishes, highlighting the important advancements that have shaped this field with a nearly 100-year history. The developmental and evolutionary implications of an ammonia and gill-dominated nitrogen regulation strategy in most fishes will also be discussed. Throughout the review, I point to areas in which more work is needed to push forward this field of research that continues to produce novel insights and discoveries that will undoubtedly shape our overall understanding of fish physiology. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
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30. Utilization of shrimp heads for scaling up of production of Bacillus velezensis EB.KN15, its bioactive compounds and novel anti-fungal effect against durian pathogen fungi.
- Author
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Ngo, Van Anh, Wang, San-Lang, Nguyen, Van Bon, Phan, Tu Quy, Tran, Thi Ha Trang, Doan, Manh Dung, Nguyen, Dinh Sy, and Nguyen, Anh Dzung
- Subjects
- *
FISH waste , *FUSARIUM solani , *STANDARD deviations , *BINDING energy , *METABOLITES - Abstract
Shrimp head by-product (SHP) has been increasingly studied for applications in bacterial fermentation and the production of secondary metabolites. In this work study, Bacillus velezensis EB.KN15 was grown via fermentation using SHP as a novel substrate on a large scale and its potential fungicidal effect against durian pathogen fungi was evaluated. SHP was found rich in protein content (29.18%) and several mineral elements suitable for EB.KN15 fermentation. The appropriate cultural medium for B. velezensis EB.KN15 growth in the small-scale fermentation using 250 mL-Erlenmeyer flask included 2% SHP/LB (7/3), 0.05% MnSO4, and 0.1% KH2PO4 at 34 °C, pH 7 for 36 h. When scaling up fermentation in a 14 L-bioreactor system, this strain exhibited better productivity (1.2 × 1012 CFU/mL) in a shorter fermentation time (only 10 h). Anti-fungal activity tests revealed for the first time, that EB.KN15 has potential fungicidal effect against Fusarium incarnatum, Phytophthora palmivora, and Fusarium solani with high inhibition values of 70%, 78.95%, and 80%, respectively. Gas chromatography mass spectrometry could identify 11 major volatiles produced by B. velezensis EB.KN15 in the supernatant. The molecular docking indicated effective interaction of these major volatiles with the target protein responsible for F. solani inhibition with good binding energy (DS ≤ 7.1 kcal/mol) and an acceptable root-mean-square deviation value (1.05–1.96 Å). This study suggests that SHP is a new substrate for the fermentation of B. velezensis EB.KN15 and recorded this strain as a novel potential candidate to effectively manage durian pathogen fungi. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
31. Insights into fishery by-product application in aquatic feed and food: a review.
- Author
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Naghdi, Shahab, Rezaei, Masoud, Heidari, Mahshid Gharib, Tahergorabi, Reza, Lorenzo, Jose M., and Mirzaei, Fatemeh
- Subjects
- *
OMEGA-3 fatty acids , *UNSATURATED fatty acids , *FISH waste , *TREATMENT effectiveness , *FISHERY processing - Abstract
Today, the fishery industry plays a crucial role in meeting the global demand for human food. However, the increased production and processing of aquatic animals like fish, shellfish, squids, and bivalves have resulted in a significant amount of waste generation. This waste, which includes fish heads, viscera, skin, bones, scales, exoskeletons, pens, ink, and clam, account for approximately 30–70% of the total aquatic product. The accumulation of this waste not only adds to production costs but also poses a serious environmental challenge. To address these issues, researchers have turned to utilizing fish by-products to extract bioactive compounds such as protein hydrolysate, chitin, chitosan, carotenoid, carotenoproteins, omega-3 polyunsaturated fatty acids, and gelatin. These compounds possess desirable properties such as antioxidant, antimicrobial, and therapeutic effects. As a result, they have grabbed the attention of the food and feed industry for various applications. In this article, we aim to provide a concise review of the bioactivity properties of these compounds and their potential applications specifically in aquaculture and seafood processing. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
32. A review of dietary approaches for ammonia toxicity remediation in fish.
- Author
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Hoseini, Seyyed Morteza, Barbieri, Edison, Aydın, Baki, and Yousefi, Morteza
- Subjects
- *
POISONS , *FISH waste , *FISH growth , *FEED additives , *DIETARY supplements - Abstract
We reviewed available data regarding the benefits of feed additives for mitigation of ammonia toxicity in fish. We first emphasized the toxic effects of ammonia and the pathways involved in ammonia metabolism in fish. Then, we focused on the roles of different dietary additives on internal ammonia detoxification and/or to counteract the negative effects of ammonia toxicity. A wide range of feed additives has been studied for their benefits in fish under ammonia exposure. Most of these studies focused on the improvement of fish health and growth performance by these additives, but neglected underlying mechanisms of these effects as well as ammonia detoxification. It is necessary to monitor internal ammonia, urea, amino acids levels, ammonia/urea excretion, and enzymes involved in ureagenesis and glutamine formation along with health-related parameters (e.g., antioxidant, immunological, and growth responses) in the future studies to fulfil the knowledge gap. Moreover, the future researches should consider the route of ammonia and supplements administration to obtain reliable and practical data. A little evidence shows that dietary nutrients may interact to change the results of dietary supplementation on ammonia toxicity remediation, which must be considered in the future studies. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
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33. Sardine Processing Waste: Biological Treatment Strategies and Their Implications.
- Author
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Ziagova, Maria G., Tzekaki, Elena E., Avgoulas, Dimitrios I., Tsiridis, Vasilios, Karali, Evangelia, Pantazaki, Anastasia A., and Petala, Maria
- Subjects
WASTE treatment ,FISH waste ,ANAEROBIC digestion ,RENEWABLE natural gas ,BACILLUS (Bacteria) ,LIPASES - Abstract
This study explores sustainable methods for Sardine Processing Waste (SPW) valorization. Two approaches were investigated: (a) SPW microbial pretreatment adding Saccharomyces cerevisiae or Bacillus sp. in a two-stage anaerobic digestion (AD) for enzyme and biomethane production and (b) a single-stage AD without SPW pretreatment. Both S. cerevisiae and Bacillus sp. secreted proteases (0.66 and 0.58 U mL
−1 , respectively) and lipases (3.8 and 4.3 U mL−1 , respectively) during hydrolysis, thus reducing viscosity (2.8 and 2.9 cP, respectively) compared with the untreated SPW (4.1 cP). Biomethane production was higher in the single-stage AD (1174 mL CH4 g−1 VS−1 ) when compared with the two-stage AD (821.5 and 260 mL CH4 g−1 VS−1 with S. cerevisiae and Bacillus sp., respectively). S. cerevisiae addition enhanced SPW degradation as implied by VS and sCOD values (70 and 84%, respectively), but this also resulted in a higher toxicity due to a three-fold increment in NH4 -N content, reducing methanogen activity. This research demonstrates the innovative application of S. cerevisiae, a common bread-making yeast, in the biotechnological enhancement of SPW hydrolysis. Non-genetically engineered S. cerevisiae not only co-produced proteases and lipases but also significantly improved solubilization, degradation, and viscosity reduction, thereby rendering the yeast a key player in solid fish waste valorization, beyond its traditional applications. [ABSTRACT FROM AUTHOR] more...- Published
- 2024
- Full Text
- View/download PDF
34. From Waste to Value: Fish Protein Hydrolysates as a Technological and Functional Ingredient in Human Nutrition.
- Author
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Honrado, Adrián, Miguel, Marta, Ardila, Paula, Beltrán, José Antonio, and Calanche, Juan B.
- Subjects
PROTEIN hydrolysates ,UNSATURATED fatty acids ,NUTRITION ,DIETARY supplements ,FISH waste - Abstract
Fish provides a low-caloric content, polyunsaturated fatty acids, many essential trace elements and is also a rich source of protein, ranging from 10% to 25%. Therefore, the production of FPH (fish protein hydrolysates) is of great interest, as the resulting products exhibit a variety of important bioactive and technological properties, making them potential ingredients for new functional foods and supplements. The aim of this review was to compile and analyze information on enzymatic hydrolysates, with particular emphasis on those derived from fish by-products, as a potential ingredient in human nutrition. Their nutritional characteristics, food safety aspects, bioactive properties, technological attributes, key influencing factors, and applications in food products were evaluated. The findings revealed that these properties are influenced by several factors, such as the raw material, enzymes used, degree of hydrolysis, and the molecular weight of the peptides, which need to be considered as a whole. In conclusion, the gathered information suggests that it is possible to obtain high-value products through enzymatic hydrolysis, even when using fish by-products. However, although numerous studies focused on FPH derived from fish muscle, research on by-products remains limited. Further investigation is needed to determine whether the behavior of FPH from by-products differs from that of muscle-derived FPH. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
35. Flexural behavior of textile reinforced concrete using waste fishing net as continuous reinforcement.
- Author
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Gopinath, Smitha, Abhirami, A. L., Ganesan, Ishwarya, and Kumar, Nartu Manoj
- Subjects
- *
FISHING nets , *FISH waste , *GLASS waste , *CONCRETE waste , *TEXTILE waste - Abstract
AbstractThe present study investigated the flexural properties of Textile Reinforced Concrete (TRC) incorporated with waste fishing nets as reinforcement with a view to providing a potential solution to the environmental impact caused by these nets. Locally available waste fishing nets having two different mesh sizes and thicknesses were used as textile reinforcement for investigation. The fishing nets composed of nylon fibres were selected due to their potential as a sustainable and cost-effective reinforcement material. TRC composite with A.R. Glass textile was used as a reference specimen and that with A.R. Glass textile and waste fishing net were considered for the flexural tests. The influence of different layers of textiles was also investigated. The epoxy coating was used to coat the waste fishing nets along with A.R. glass textile to develop a hybrid textile. Properties of TRC composites incorporated with uncoated nets were compared with the composites using coated nets in order to understand the effect of coating on the reinforcement. The efficiency of textiles as reinforcement was also analyzed in detail by determining the strength and ductility ratio. Investigating the flexural behaviour of TRC with epoxy-coated waste fishing nets aims to understand this innovative composite material’s mechanical properties and performance. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
36. Non-invasive methods characterise the world's largest tiger shark aggregation in Fuvahmulah, Maldives.
- Author
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Vossgaetter, Lennart, Dudeck, Tim, Crouch, Jamie, Cope, Maiah, Ivanova, Tatiana, Siyan, Ibrahim, Niyaz, Abdullah, Riyaz, Mohamed, and Araujo, Gonzalo
- Subjects
- *
IDENTIFICATION documents , *TIGERS , *MAXIMUM likelihood statistics , *FISH waste , *TOP predators - Abstract
Tiger sharks are apex predators with a circumglobal tropical and warm-temperate distribution, with a general lack of population data for the central Indian Ocean. In Fuvahmulah, Maldives, tiger sharks display frequent use of the harbour area, attracted by discarded fish waste. Here, we document the population structure, residency, and reproductive characteristics of the world's largest known tiger shark aggregation in a geographically-restricted area. Using non-invasive methods, photo identification and laser photogrammetry, we identified 239 individual tiger sharks over a 7-year study period. The aggregation was female-dominated (84.5%), with both large juveniles and adults present. Adult females were resighted over the entire study period displaying strong inter- and intra-annual site fidelity. Modelled residency using maximum likelihood methods suggests they spent 60.7 ± S.E. 7.5 days in Fuvahmulah, with a larger aggregation size, shorter residence periods and longer absence periods compared to juvenile females. Prolonged abdominal distensions of adult females indicate they likely stay near Fuvahmulah during gestation and reproduce biennially. Fuvahmulah seems to provide suitable conditions for gestation given the year-round provision of food and warm waters, exhibited by strong site fidelity and temporal residency. Our results show indications of a thriving population within the confines of protected waters. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
37. Effects of Various Decellularization Methods for the Development of Decellularized Extracellular Matrix from Tilapia (Oreochromis niloticus) Viscera.
- Author
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Aron, Jemwel, Bual, Ronald, Alimasag, Johnel, Arellano, Fernan, Baclayon, Lean, Bantilan, Zesreal Cain, Lumancas, Gladine, Nisperos, Michael John, Labares, Marionilo, Valle, Kit Dominick Don, Bacosa, Hernando, and Amirian, Jhaleh more...
- Subjects
- *
NILE tilapia , *HEMATOXYLIN & eosin staining , *FISH farming , *FISH waste , *CELL anatomy - Abstract
Tilapia, a widely farmed aquaculture fish, produces substantial waste, including viscera that contain extracellular matrix (ECM) utilized as a biomaterial for tissue regeneration applications. Extracting ECM from viscera requires a specific decellularization method, as no standardized protocol exists. This study performed three decellularization methods: sonication, orbital shaking at room temperature, and agitation at 4°C, using SDS and TX100 at concentrations of 0.1% and 0.3%. The effectiveness of each method was assessed through H&E staining, dsDNA quantification, and SEM imaging to verify cellular content removal and ECM structure preservation. Additional analyses, including ATR‐FTIR, SDS‐PAGE, protein quantification, HPLC, and detergent residue tests, were performed to examine functional groups, collagen composition, protein content, amino acid profiles, and detergent residues in the decellularized samples. The results of H&E staining showed a significant reduction in cellular components in all samples, which was confirmed through DNA quantification. Sonication with 0.3% SDS achieved the highest DNA removal rate (96.5 ± 1.1%), while SEM images revealed that agitation at 4°C with 0.3% TX100 better preserved ECM structure. Collagen was present in all samples, as confirmed by ATR‐FTIR analysis, which revealed pronounced spectral peaks in the amide I, II, III, A, and B regions. Samples treated with agitation at 4°C using 0.1% SDS exhibited the highest protein content (875 ± 15 µg/mg), whereas those treated with TX100 had lower detergent residue. Overall, the decellularization methods effectively reduced DNA content while preserving ECM structure and components, highlighting the potential of tilapia viscera as bioscaffolds and offering insights into utilizing fish waste for high‐value products. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
38. The LimoFish Circular Economy Process for the Marine Bioeconomy.
- Author
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Pizzone, Daniela Maria, Angellotti, Giuseppe, Carabetta, Sonia, Di Sanzo, Rosa, Russo, Mariateresa, Mauriello, Francesco, Ciriminna, Rosaria, and Pagliaro, Mario
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ENGRAULIS encrasicolus ,CIRCULAR economy ,FISH oils ,SUSTAINABLE development ,FISH waste - Abstract
The outcomes of applying the zero‐waste extraction "LimoFish" process based on defatting fish processing waste with limonene to leftovers of European sardine (Sardina pilchardus) and European anchovy (Engraulis encrasicolus), compared to conventional extraction with oil‐derived solvents such as n‐hexane and with petroleum ether, show that the process has general applicability. Meeting the principles of green extraction and those of the marine biorefinery requiring high process efficiency, the process establishes an "innovation through integration" circular economy production route enabling the marine bioeconomy. [ABSTRACT FROM AUTHOR] more...
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- 2024
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39. EXTRACTION AND CHARACTERIZATION OF CHITIN AND CHITOSAN FROM LOCAL IRAQI FISH SCALES.
- Author
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Soud, Shemaa A., Ali, Maysaa A., Alhadban, Wedean G., and Taha, Ali A.
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FOURIER transform infrared spectroscopy , *GRAVIMETRIC analysis , *SCALES (Fishes) , *FISH waste , *POTENTIOMETRY , *CHITIN - Abstract
Both chitin and deacylated form of chitosan are considered the second most biopolymer available in nature after cellulose. Chitin and chitosan have an economic value related to their industrial, biological and biomedical applications. In this study, chitin was extracted from of Iraqi carp fish scales (Cyprinus carpio L.) and then deacylated into the chitosan. The obtained samples have been distinguished through Fourier transforms infrared spectroscopy (FTIR) and Thermo gravimetric analysis (TGA). The FTIR analysis for chitin showed the characteristic spectra at 1541 cm-1 and 1647 cm-1 associated to N-H bending vibration and C=O stretching vibration respectively. Thus, the FTIR spectra of chitosan gave characteristics bands of 1647 cm-1 for a carbonyl group. Thus, thermogravimetric analysis suggests that chitin had been found to be more stable than chitosan. Moreover, study of physiochemical properties for obtained chitosan was identified the molar mass (MW) of prepared chitosan to be 2.5 x 105 (g/mol) with 4.5%moisture content, 0.050% ash and insoluble content about 0.59%. The degree of deacetylation (DD) was also studied based on potentiometric titration and FTIR were reached to 57% and 63% respectively. It has been confirmed by the functional properties of the prepared chitosan that it can be commercially used in different fields. Preparing chitosan from fish waste would be minimise the pollutants to the environment. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
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40. اثر عصاره آنزیمی مستخرج از ضمائم پیلوریک ماهی بر عملکرد رشد و ترکیب بیوشیمیایی بچه ماهی قزل آلای رنگین کمان (Oncorhynchus mykiss).
- Author
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پوریا حشمت زاد, عبدالمجید حاجی م, عباس زمانی, and هادی چراغی
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RAINBOW trout , *FISH farming , *DIETARY supplements , *FISHERIES , *BODY composition - Abstract
In fish farming industry, the use of nutritional supplements, including enzymes, is recognized as a vital strategy to enhance nutritional performance and growth. This study aimed to evaluate the effect of enzymatic extract from pyloric appendages on the growth performance and body composition of rainbow trout fry. Four dietary treatments were prepared, including a control diet (A: without enzyme) and three diets containing different levels of enzyme extract (B: 0.5 g/kg, C: 1 g/kg, and D: 2 g/kg of feed) with uniform protein and energy content. The results indicated that diets D and C exhibited the best growth performance compared to other experimental diets. These diets significantly outperformed others in terms of body weight increase and daily growth rate. Moreover, they showed the best feed conversion ratio, indicating efficient feed utilization. Additionally, diet D showed the highest specific growth rate and condition factor, while diet C exhibited the highest survival rate, although these differences were not statistically significant. The ash content in diet D was also significantly higher compared to other diets. Diets D and C significantly increased protein efficiency ratio and lipid efficiency ratio. The findings suggest that the inclusion of 2 g/kg enzymatic extract from pyloric appendages can improve the growth and nutritional performance of rainbow trout fry. [ABSTRACT FROM AUTHOR] more...
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- 2024
- Full Text
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41. Extraction of Fungal Chitosan by Leveraging Pineapple Peel Substrate for Sustainable Biopolymer Production.
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Davis, Delwin, Umesh, Mridul, Santhosh, Adhithya Sankar, Suresh, Sreehari, Shanmugam, Sabarathinam, and Kikas, Timo
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- *
SUSTAINABILITY , *FISH waste , *FOOD packaging , *CHITOSAN , *X-ray diffraction , *PINEAPPLE - Abstract
The cost-effective production of commercially important biopolymers, such as chitosan, has gained momentum in recent decades owing to its versatile material properties. The seasonal variability in the availability of crustacean waste and fish waste, routinely used for chitosan extraction, has triggered a focus on fungal chitosan as a sustainable alternative. This study demonstrates a cost-effective strategy for cultivating an endophytic fungus isolated from Pichavaram mangrove soil in a pineapple peel-based medium for harvesting fungal biomass. Chitosan was extracted using alkali and acid treatment methods from various combinations of media. The highest chitosan yield (139 ± 0.25 mg/L) was obtained from the pineapple peel waste-derived medium supplemented with peptone. The extracted polymer was characterized by FTIR, XRD, DSC, and TGA analysis. The antioxidant activity of the fungal chitosan was evaluated using DPPH assay and showed an IC50 value of 0.22 mg/L. Subsequently, a transparent chitosan film was fabricated using the extracted fungal chitosan, and its biodegradability was assessed using a soil burial test for 50 days. Biodegradation tests revealed that, after 50 days, a degradation rate of 28.92 ± 0.75% (w/w) was recorded. Thus, this study emphasizes a cost-effective strategy for the production of biopolymers with significant antioxidant activity, which may have promising applications in food packaging if additional investigations are carried out in the future. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
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42. Bio-Oil Production from Fish Processing Waste Residues Using Oleaginous Rhodotorula sp. R1 After Conventional Oil Extraction.
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Dias De Ávila, Fernanda, Okeke, Benedict C., Farias, Josiane Pinheiro, da Silva Afonso, Marcela, Silva, Márcio Santos, de Oliveira Camargo, Flávio Anastácio, Bento, Fátima Menezes, Pieniz, Simone, and Andreazza, Robson more...
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- *
FISH waste , *GREEN products , *FISHERY processing , *FISH oils , *PALMITIC acid - Abstract
Fish waste is a major environmental pollution problem and requires costly treatment prior to disposal. Conversion of fish waste to economically important and eco-friendly products will make fishing and fish processing more valuable and sustainable. This study evaluated waste residues from fish processing waste subjected to conventional physical extraction of fish oil for single-cell oil production using oleaginous yeast. Potential application of the single-cell oil to produce biodiesel was evaluated. The treatment containing fish waste residue (5%, w/v) and glucose (20 g/L, w/v) displayed the highest rate (14%) of total lipid generation. The fish waste residue proved to be a good nitrogen source for the oleaginous yeast, Rhodotorula sp. R1. At 15% (w/v) fish waste residue and 20% (w/v) glucose amendment of the medium, the highest biomass production was observed. The yeast bio-oil has a lipid profile like vegetable oils and consists of mainly long-chain fatty acids (between C14 and C24) which are suitable for biodiesel production. The most abundant fatty acids were palmitic acid (C16:0), elaidic acid (C18:1n-9t), and stearic acid (C18:0). FTIR analysis of the transesterification reaction product using the yeast oil confirmed its conversion to biodiesel. Although glucose amendment of medium supported lipid accumulation, it can be replaced with wastes rich in sugars to decrease the cost of single-cell bio-oil production. Results indicate the potential secondary value of fish processing waste in the cultivation of oleaginous yeast for bio-oil and biodiesel production. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
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43. Fish Byproducts as a Protein Source: A Critical Review of Fish Protein Concentrate.
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Zatta Cassol, Geodriane, Rezende-de-Souza, Jonatã Henrique, and Savay-da-Silva, Luciana Kimie
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- *
FISH protein concentrate , *ELEMENTAL diet , *FISH waste , *FISHERY processing , *MANUFACTURING processes - Abstract
\nHighlightsThe byproducts generated during fish processing can represent up to 70% of the raw material entering the industry, and some of these byproducts are rich in high-quality proteins and other nutrients that could be used for human consumption. The products derived from these byproducts can be considered high-value-added products or coproducts, with the potential to create new ingredients and innovative food products. Among these, Fish protein concentrate (FPC) can be used as an ingredient in formulations for protein enrichment by food industry. Notably, the absence of global standardization in industrial processes for FPC production stems from the limited number of countries with established regulations and the scarcity of industries offering specialized equipment for industrial production. This dearth inhibits uniformity and efficiency in FPC manufacturing worldwide. These factors make FPC production inefficient and the quality of the final product unsatisfactory, mainly because of the presence of a large amount of lipids, which can be a concern and necessitate the use of chemical and physical lipid removal methods. In this critical review, information about FPC was compiled, with an emphasis on the byproduct of fish processing, processing techniques, and the nutritional and techno-functional aspects of this coproduct and formulated foods. Fish processing byproducts can be utilized in producing Fish Protein Concentrate for human consumption.Fish Protein Concentrate can be provided daily protein supplementation to populations in need.Fish Protein Concentrate needs to achieve an efficient global standardization of production processes.Specific legislation is required for Fish Protein Concentrate use as an ingredient in food formulations.Physical and chemical methods are used to obtain Fish Protein Concentrate delipided.Fish processing byproducts can be utilized in producing Fish Protein Concentrate for human consumption.Fish Protein Concentrate can be provided daily protein supplementation to populations in need.Fish Protein Concentrate needs to achieve an efficient global standardization of production processes.Specific legislation is required for Fish Protein Concentrate use as an ingredient in food formulations.Physical and chemical methods are used to obtain Fish Protein Concentrate delipided. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
44. Preparation of Nile tilapia (Oreochromis niloticus) waste meal for human consumption.
- Author
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Rodrigues de Souza, Maria Luiza, Sartorio Chambo, Ana Paula, Albino Bronharo, Bruna, Souza Vasconcellos, Ricardo, de Souza Khatlab, Angélica, Matiucci, Marcos Antonio, and Gasparino, Eliane
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- *
NILE tilapia , *NUTRITION , *ANALYSIS of colors , *FISH waste , *GLUTAMIC acid , *PALMITIC acid , *OLEIC acid , *MEALS - Abstract
This study aimed to prepare and characterize Nile tilapia (Oreochromis niloticus) waste meal. The experimental design consisted of three treatments (carcass meal, mechanically separated meat meal - MSM, and head meal) and five replications of each treatment. Yield, microbiological quality, pH, water activity, proximate composition, energy value, mineral composition, fatty acid profile, amino acid composition, color, and particle size fractions and the geometric mean particle diameter (GMD) analyses were performed. Data were subjected to ANOVA, and means were compared by Tukey's test at P < 0.05. Carcass, mechanically separated meat, and head meals had a protein content of 56.45%, 78.60%, and 50.33%, respectively, a lipid content of 7.16%, 13.15%, and 4.58%, respectively, and an ash content of 32.61%, 4.26%, and 38.41%, respectively. The mean yield of fish waste meals was 13%. Oleic, palmitic, and linoleic acids were the major fatty acids in the three fish waste meals, and glutamic acid, leucine, lysine, and glycine were the major amino acids. Color analysis showed that lightness (L*) ranged from 55.32 to 77.19, redness (a*) from 4.44 to 4.88, and yellowness (b*) from 4.13 to 9.51. The GMD ranged from 0.37 to 0.99 mm. The results indicate that Nile tilapia waste meals have high nutritional value and adequate pH, water activity, and microbiological quality for use in human nutrition. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
45. Synthesis of Hydroxyapatite Bioceramic from Cuttlefish Shell Waste and Coral Using Microwave Hydrothermal.
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Nurbaiti, N., Herliansyah, M. K., Tontowi, A. E., Widiastuti, M. G., and Hoten, H. V.
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FISH waste ,HYDROXYAPATITE ,HYDROTHERMAL synthesis ,FOURIER transform infrared spectroscopy ,MICROWAVES - Abstract
Indonesia is an archipelagic country with two continents and an ocean, where it produces abundant marine products and the second largest marine source in the world, such as cuttlefish. Besides, it was for food, cuttlefish also produced shells as waste. Actually, this waste has been used for animal feed but in small scale. Others are still waste and cause pollution if not handled properly. Cuttlefish shell waste (CSW) is the basic ingredient for making hydroxyapatite (HA), while it was the main bone compound. Meanwhile, HA demand in the market is very high due to bone defects. The novelty of the research was to fulfil the increasing need for HA at low price and prevent air, water, and soil pollution by using circular economic principles (reused), and it has economic value. Synthesis HA was used microwave hydrothermal method. The CSW and coral were obtained from the pet market in Yogyakarta. They were crushed and calcined to the temperature of 900°C to obtain calcium oxide (CaO). Then, CaO was synthesized by microwave hydrothermal to obtain HA powder. Synthetic HA was characterized by the Fourier transform infrared (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray (EDX), and thermogravimetric analysis (TGA). The Ca/P ratio of HA CSW and coral are 1.7 and 1.87, respectively. Moreover, coral HA has higher crystallinity than CSW (48%). The TGA shows that the highest weight loss occurred in HA CSW (16.57%). The conclusion is that both CSW and coral are raw materials used to produce HA. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
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46. Collagen-Based Hydrogel with Incorporated Nano-Hydroxyapatite for the Delivery of a Poorly Water-Soluble Drug.
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Padekan, Bahare, Dadvand Koohi, Ahmad, and Akbari Dogolsar, Mojtaba
- Subjects
- *
FISH waste , *SCANNING electron microscopy , *CYTOTOXINS , *X-ray diffraction , *TISSUE engineering - Abstract
AbstractThe goal of our research described here was to prepare a class of biocompatible composite hydrogel beads as a delivery system for the poorly soluble drug, cefixime. Hydrogel beads were synthesized using collagen (Col) and hydroxyapatite (HA) nanoparticles both extracted from fish wastes, and chitosan (Chi), for oral drug delivery. The in-vitro cytotoxicity of the Col showed good enough cell viability (95.51%) to be used as a potential candidate for biomedical applications, including tissue engineering and drug delivery. X-ray diffraction (XRD) patterns and Fourier transform infrared (FTIR) spectroscopy were used to determine the crystallinity and functional groups of the synthesized hydrogel beads. The fibrous structure of the beads was confirmed using scanning electron microscopy (SEM) images. The 1:1 ratio of Col:Chi without HA, resulted in a maximum swelling degree of 2010% and a drug release percentage of 93%. As the concentration of Col was increased, the swelling and cefixime release decreased. Adding HA NPs to the hydrogel structure led to an average 10% reduction in cefixime release compared to samples without HA. The release rate kinetics followed the first order and Korsmeyer-Peppas models, proving the diffusion was the controlling factor. The results showed that the mentioned hydrogel beads had a great potential delivery platform to achieve the controlled release of cefixime. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
47. Optimization of chitosan production from Labeo rohita fish scale using response surface methodology.
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Baral, Anupama, Pradhan, Kirtishree, Das, Swagat Kumar, Mahapatra, Sonali, Satpathy, Ark Ansuman, Nayak, Yashaswi, and Dash, Supriya
- Subjects
- *
SCALES (Fishes) , *RESPONSE surfaces (Statistics) , *ROHU , *FISH waste , *CHITOSAN , *DEACETYLATION - Abstract
Chitosan preparation is a sequential method that involves demineralization and deproteinization followed by deacetylation. In the present study, the effect of different process parameters such as concentration of acid, concentration of alkali, ratio between solid and solvent, reaction time, and temperature for optimization of demineralization and deacetylation processes in chitosan synthesis from Labeo rohita scale was studied. The effects of the above process parameters on chitosan yield (in terms of dry weight and % of moist weight of mass) were carried out using Box–Behnken design (BBD) of response surface methodology (RSM). The optimum condition for demineralization was observed at the ratio of solid to solvent (w/v) of 80 and incubation time of 10 min. Similarly, the optimum condition for deacetylation was revealed at alkali concentration of 15% and incubation time of 20 min. The obtained chitosan is characterized by UV–Visible spectroscopy, FT-IR analysis, SEM, and X-ray diffraction. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
48. Calcium oxide waste-based catalysts for biodiesel production and depollution: a review.
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Teo, Chook Kiong, Chia, Poh Wai, Nordin, Nurhamizah, Kan, Su-Yin, Ismail, Noor Maizura, Zakaria, Zainal, Liew, Rock Keey, Wu, Lei, and Yong, Fu Siong Julius
- Subjects
- *
LIME (Minerals) , *CATALYSTS , *COFFEE grounds , *FISH waste , *SNAIL shells , *BIODIESEL fuels - Abstract
Pollution, climate change and waste accumulation are critical societal issues calling for advanced methods to recycle matter and clean polluted ecosystems. Here, we review the use of calcium oxide waste-based catalysts for industrial and environmental applications such as biodiesel production, and pollutant degradation and removal. Catalysts can be produced from mud clam shell, eggshell, spent coffee ground, fish bones waste, marble waste, face mask waste, and snail shell. The preparation of composite catalysts, adsorbents, nanoparticles, and photocatalysts is presented. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
49. Stabilization of Fish Protein-Based Adhesive by Reduction of Its Hygroscopicity.
- Author
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Mušič, Branka, Pečnik, Jaka Gašper, and Pondelak, Andreja
- Subjects
- *
SURFACE tension measurement , *LAP joints , *SCANNING electron microscopes , *CIRCULAR economy , *FISH waste - Abstract
Protein-based fish adhesives have historically been used in various bonding applications; however, due to the protein's high affinity for water absorption, these adhesives become destabilized in high-moisture environments, resulting in reduced bondline strength and early failure. This limitation makes them unsuitable for industrial applications with higher demands. To address this issue, water-insoluble raw powder materials such as iron, copper, or zeolite were incorporated into natural fish adhesives. In this study, the hygroscopicity, dry matter content, thermal analysis (TGA/DSC), FT-IR spectroscopy, surface tension measurements, vapour permeability, and scanning electron microscope (SEM) of the modified adhesives were determined. In addition, the bonding properties of the modified adhesives were evaluated by the tensile shear strength of the lap joints, and mould growth was visually inspected. The resulting modified protein-based adhesives demonstrated improved stability in high humidity environments. Enhancing the hygroscopic properties of protein-based fish adhesives has the potential to unlock new opportunities and applications, providing a healthier and more environmentally sustainable alternative to petroleum-based adhesives. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
50. Review: Enzymatic hydrolysates of fish by-products: technological advantages and bioactive properties.
- Author
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Sasso Robalo, Silvino, Picolli Da Silva, Leila, De Menezes, Cristiano Regagnin, Barin, Juliano Smanioto, Bastianello Campagnol, Paulo Cezar, and José Cichoski, Alexandre
- Subjects
- *
FISH waste , *WASTE treatment , *FOAM , *FISH fillets , *HYDROLYSIS , *CONSUMERS - Abstract
Millions of tons of fish are filleted each year, and a significant portion of unwanted carcasses is discarded worldwide. An alternative approach to use these materials is through hydrolysis reactions, which allow for the production of compounds with modified technological properties such as solubility, emulsification capacity, foam formation ability, and viscosity. In addition, they may exhibit different biological activities with beneficial effects such as antioxidant, antihypertensive, anticarcinogenic, lipid profile-lowering, and neuroprotective properties. Thus, these compounds can be included in food formulations as promising adjuncts in treatments, with health benefits to consumers. This study discussed the different enzymatic hydrolyses used in the treatment of fish waste and evaluate the compounds and their effects. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
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