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Food factories seek the application of natural products, green feedstock and eco-friendly processes, which minimally affect the properties of the food item and products. Today, water and conventional polar solvents are used in many areas of food science and technology. As modern chemistry evolves, new green items for building eco-friendly processes are being developed. This is the case of deep eutectic solvents (DESs), named the next generation of green solvents, which can be involved in many food industries. In this review, we timely analyzed the progress on applying DES toward the development of formulations, extraction of target biomolecules, food processing, extraction of undesired molecules, analysis and determination of specific analytes in food samples (heavy metals, pesticides), food microbiology, and synthesis of new packaging materials, among many other applications. For this, the latest developments (over the last 2-3 years) have been discussed emphasizing innovative ideas and outcomes. Relevantly, we discuss the hypothesis and the key features of using DES in the mentioned applications. To some extent, the advantages and limitations of implementing DES in the food industry are also elucidated. Finally, based on the findings of this review, the perspectives, research gaps and potentialities of DESs are stated. [ABSTRACT FROM AUTHOR]

This study aimed to provide new data on the chemical composition and biological properties of Corrigiola. telephiifolia Pourr., demonstrating the influence of different extraction solvents and geographic locations on these properties. It presents novel findings on the phytochemical contents, antioxidant activity, and antimicrobial effects of various fractions of Corrigiola telephiifolia Pourr. roots collected from three distinct regions in Morocco. The obtained results reveal significant variations in TPC, TFC, and antioxidant activity depending on the extraction fraction and geographic origin. Notably, the fraction of raw extract exhibited the highest TPC values in all sampled sites (44.76 ± 0.05 in Agouray, 35.89±0.02 in Sefrou, and 14.99 ± 0.03 mg·GAE/g·dw in Azrou). The peak values of TFC were recorded in the fraction of raw extracts for all sampling sites (20.80 ± 0.01 in Agouray, 18.62 ± 0.01 in Sefrou, and 11.54 ± 0.01 mg QAE/g dw in Azrou). The highest values of FRAP were recorded in the fraction of raw extract of Agouray (2.00±0.00). Furthermore, the hexane fraction showed the highest DPPH and Chelating power with IC50 equal to 0.46 ± 0.02 mg·mL-1 and 0.10 ± 0.00 mg·mL-1, respectively. All fractions showed significant and variable antibacterial activities. The highest antimicrobial activity was recorded in in ethyl acetate fraction of the sample from Agouray against E. coli (MIC = 0.039). The highest anti-microbial effect was recorded also in ethyl acetate fraction against E. coli and P. aeruginosa, and raw fraction against B. subtilis and P. aeruginosa (MBC = 0.313 against both microorganisms). Agouray consistently demonstrated superior results across multiple parameters, indicating it as the best region for the highest phytochemical and bioactive properties. This study evaluated the chemical compounds and biological properties of Corrigiola. telephiifolia Pourr. and demonstrated the effect of the sampled area and solvent. [ABSTRACT FROM AUTHOR]

The experiment used the response surface method to optimize the extraction process of polysaccharides from Phellodendron amurense Rupr. and studied its antioxidant activity. Four factors with significant impact on polysaccharide extraction (extraction temperature, extraction time, ultrasonic power, and liquid-to-solid ratio) were selected as the subjects of investigation. Based on the results of single-factor experiments, the Box-Behnken design response surface method was used to optimize the extraction process of Phellodendron amurense Rupr. polysaccharides. The antioxidant activity of Phellodendron amurense Rupr. polysaccharides was evaluated by measuring their scavenging effects on 1, 1-diphenyl-2-picrylhydrazyl (DPPH) free radicals and hydroxyl radicals. The results showed that the optimal extraction process obtained by the response surface optimization was an extraction temperature of 79 °C, an extraction time of 54 minutes, an ultrasonic power of 59 W, and a liquid-to-solid ratio of 23 mL/g, at which the yield of Phellodendron amurense Rupr. reached 3.19%. At a concentration of 5 g/L, the maximum scavenging rates of DPPH and hydroxyl radicals by Phellodendron amurense Rupr. polysaccharides were 61% and 39%, respectively. The study indicates that the optimized ultrasonic extraction process of Phellodendron amurense Rupr. polysaccharides is stable and feasible, and Phellodendron amurense Rupr. polysaccharides possess certain antioxidant activity. [ABSTRACT FROM AUTHOR]

Around 20–30% of the horned melon's weight is peel. This peel is often discarded or underutilized despite containing valuable bioactive compounds. Conventional methods for extracting polyphenols and carotenoids from horned melon peel are typically inefficient, environmentally harmful, or require significant time and energy. The potential of green cloud point extraction (CPE) or green surfactant-based extraction for recovering bioactives with different polarities from this kind of by-product has not been thoroughly investigated. Therefore, this study focused on optimizing CPE process parameters using a one-variable-at-a-time (OVAT) approach. Optimal CPE demonstrated superior yields compared to conventional, ultrasound, microwave, ultrasound-assisted CPE, and microwave-assisted CPE methods. Further, a Plackett–Burman design identified key factors influencing optimal CPE conditions, while artificial neural network (ANN) analysis assessed each input variable's impact on outcomes. Maximum extraction efficiency for total phenolics (352.49 mg GAE/100 g), total carotenoids (16.59 mg β-carotene/100 g), and antioxidant activity (989.02 μmol TE/100 g) was achieved under conditions of: surfactant type = Tween 80, surfactant concentration = 2%; solid:liquid ratio = 1:100; pH = 6612; equilibration temperature = 35 °C; equilibration time = 60 min; salt type = NaCl; salt concentration = 16.4%; centrifugation speed = 7906× g ; centrifugation time = 13.358 min; and No. of CPE steps = Step 1. This comprehensive approach aimed to enhance the understanding and optimization of CPE for maximizing the recovery of bioactives from the horned melon peel, addressing the inefficiencies of traditional extraction methods. [ABSTRACT FROM AUTHOR]

Expert curation is essential to capture knowledge of enzyme functions from the scientific literature in FAIR open knowledgebases but cannot keep pace with the rate of new discoveries and new publications. In this work we present EnzChemRED, for Enzyme Chemistry Relation Extraction Dataset, a new training and benchmarking dataset to support the development of Natural Language Processing (NLP) methods such as (large) language models that can assist enzyme curation. EnzChemRED consists of 1,210 expert curated PubMed abstracts where enzymes and the chemical reactions they catalyze are annotated using identifiers from the protein knowledgebase UniProtKB and the chemical ontology ChEBI. We show that fine-tuning language models with EnzChemRED significantly boosts their ability to identify proteins and chemicals in text (86.30% F1 score) and to extract the chemical conversions (86.66% F1 score) and the enzymes that catalyze those conversions (83.79% F1 score). We apply our methods to abstracts at PubMed scale to create a draft map of enzyme functions in literature to guide curation efforts in UniProtKB and the reaction knowledgebase Rhea. [ABSTRACT FROM AUTHOR]

Subsequent CO2 injection can enhance oil recovery and achieve carbon sequestration in shale reservoirs, which is crucial for energy sustainability and environmental protection. However, for continental sedimentary shale oil, the development process must consider the multiscale matrix-fracture structure and the impact of heterogeneous wettability on fluid-solid interactions. Moreover, the mechanisms of CO2 miscibility and interfacial behavior in post-fracturing reservoirs remain unclear. In this study, a laminated shale micro-model with fracture based on scanning electron microscopy observations was designed, and the process of fracturing fluid flowback and subsequent CO2 huff-n-puff were simulated. Results showed that forced imbibition primarily affects limestone layers, while spontaneous imbibition affects mudstone layers, contributing 89.3% and 10.7% to the affected area, respectively. The oil recovery mechanism of CO2 is mainly influenced by pressure, transfer from displacement-carry at low pressure to dissolution-extraction, and eventually to diffusion-extraction in the miscible state. Additionally, before reaching miscibility, Taylor dispersion, Kelvin-Helmholtz instability, Rayleigh-Taylor instability, and Marangoni effects occur at the oil-CO2 interface, leading to interfacial turbulent instability. Lastly, water huff-n-puff produces membrane and isolated droplet residual oil, while immiscible CO2 breaks cluster residual oil into columnar residual oil. Miscible CO2 enhances the recovery of various residual oils, improving oil recovery and facilitating CO2 storage. This study provides insights for post-fracturing CO2 huff-n-puff development of continental sedimentary shale oil and CO2 sequestration, promoting energy utilization and environmental improvement. [ABSTRACT FROM AUTHOR]

Deep Eutectic Liquids (DELs) fall among the rapidly evolving discoveries of the 21st century, and these liquids are considered as alternative solvents to toxic and volatile organic liquids. Nevertheless, the emerging trend regarding the use of DELs in every field of physical and biological sciences, a lot of ambiguities and misconceptions exist about their formation, mechanism, and efficiencies observed or projected. A review of available technical data makes it obvious that these liquids have the potential to revolutionize the underdeveloped areas of analytical chemistry particularly the extraction/enrichment of analytes. To ensure the green and sustainable use of DELs, the researchers need to have a thorough understanding of DELs, their classification, chemistry, the nature and strength of molecular entanglements, and their tailorable features. Many researchers have declared these liquids recyclable but more attentive trials are needed to develop an authentic and straightforward DELs recycling methodology. The present review covers sound background knowledge and expert opinions about the technical definition of DELs, their classification, formation, recyclability, and tailorable features for their application as extraction solvent/sorbent in analytical chemistry. [ABSTRACT FROM AUTHOR]

By optimizing the extraction and purification process, the study first used supercritical CO2 to remove the lipophilic components of chamomile, and then combined with ultrasound assisted the extraction of total flavonoids from chamomile. The total flavonoids in chamomile were separated and purified using macroporous resin, and the total flavonoid components were analyzed and characterized. The optimal process conditions for obtaining supercritical CO2 to remove fat soluble components from chamomile are: extraction temperature of 50, extraction time of 60 minutes, extraction pressure of 25 MPa, and chamomile fat removal rate of 8.66%. The optimal process conditions for ultrasound assisted extraction of total flavonoids from chamomile are: ultrasound time of 15 minutes, ethanol volume fraction of 50%, solid-liquid ratio of 125 gmL, ultrasound power of 200 W, and total flavonoid extraction rate of 4.25%. After purification, the purity of total flavonoids in chamomile increase from 6.04% to 52.25%, while the purity of total flavonoids in chamomile is only 25.47% using the same purification process using a single ultrasound assisted extraction method without supercritical CO2 extraction. The results show that the combination of supercritical CO2 extraction and ultrasound assisted extraction can more efficiently extract total flavonoids from chamomile, and reduce the odor. The purified total flavonoids from chamomile can effectively scavenge DPPH and ABTS free radicals, and have strong antioxidant activity. [ABSTRACT FROM AUTHOR]

In recent years, the supercritical CO2 extraction method has gained attention due to its use of environmentally friendly, non-toxic solvents, ability to operate at lower temperatures that do not cause the degradation of bioactive compounds, and capacity for rapid extraction. This method is particularly notable for isolating bioactive compounds from plants. The extracts obtained have shown superior properties due to their activity against diseases such as cancer, which is one of the leading causes of death worldwide. The aim of this study is to provide an in-depth understanding of the supercritical CO2 extraction method, as well as to discuss its advantages and disadvantages. Furthermore, the study includes specific data on various plant materials, detailing the following parameters: plant name and region, bioactive compounds or compound classes, extraction temperature (°C), pressure (bar), time (minutes), co-solvent used, and flow rate. Additionally, this study covers extensive research on the isolation of bioactive compounds and the efficacy of the obtained extracts against cancer. [ABSTRACT FROM AUTHOR]

Citrus fruits (CF) are highly consumed worldwide, fresh, processed, or prepared as juices and pies. To illustrate the high economic importance of CF, the global production of these commodities in 2021 was around 98 million tons. CF's composition is considered an excellent source of phenolic compounds (PC) as they have a large amount and variety. Since ancient times, PC has been highlighted to promote several benefits related to oxidative stress disorders, such as chronic diseases and cancer. Recent studies suggest that consuming citrus fruits can prevent some of these diseases. However, due to the complexity of citrus matrices, extracting compounds of interest from these types of samples, and identifying and quantifying them effectively, is not a simple task. In this context, several extractive and analytical proposals have been used. This review discusses current research involving CF, focusing mainly on PC extraction and analysis methods, regarding advantages and disadvantages from the perspective of Green Chemistry. [ABSTRACT FROM AUTHOR]

The cacao fruit is a rich source of polyphenols, including flavonoids and phenolic acids, which possess significant health benefits. The accurate identification and quantification of these bioactive compounds extracted from different parts of the cacao fruit, such as pods, beans, nibs, and cacao shells, require specific treatment conditions and analytical techniques. This review presents a comprehensive comparison of extraction processes and analytical techniques used to identify and quantify polyphenols from various parts of the cacao fruit. Additionally, it highlights the environmental impact of these methods, exploring the challenges and opportunities in selecting and utilizing extraction, analytical, and impact assessment techniques, while considering polyphenols' yield. The review aims to provide a thorough overview of the current knowledge that can guide future decisions for those seeking to obtain polyphenols from different parts of the cacao fruit. [ABSTRACT FROM AUTHOR]

Pore-network models have become a critical tool in the study of fluid flow in geo-energy researches over the last few decades, and the accuracy of pore-network modeling results highly depends on the extraction of pore networks. Traditional methods of pore-network extraction are based on pixels and require images with high quality. Here, a pixel-free method called the flashlight search medial axis algorithm is proposed for pore-network extraction in a continuous space. The search domain in a two-dimensional space is a line, whereas a surface domain is searched in a three-dimensional scenario. Thus, the algorithm follows the dimensionality reduction idea; the medial axis can be identified using only a few points instead of calculating every point in the void space. In this way, computational complexity of this method is greatly reduced compared to that of traditional pixel-based extraction methods, thus enabling large-scale pore-network extraction. Based on cases featuring two- and three-dimensional porous media, the algorithm performs well regardless of the topological structure of the pore network or the positions of the pore and throat centers. This algorithm can also be used to examine both closed-boundary and open-boundary cases. Finally, this algorithm can identify the medial axis accurately, which is of great significance in the study of geo-energy. [ABSTRACT FROM AUTHOR]

The aim. Artichoke plants are increasingly cultivated in Uzbekistan, where there is growing interest in their raw materials for potential applications within the pharmaceutical industry. This exploration aims to evaluate the feasibility and advantages of integrating components derived from artichokes into pharmaceutical formulations, focusing on their recognized medicinal properties and the possible economic benefits that could arise from such innovations. Materials and methods. For the creation of highly effective preparations on the basis of artichoke raw material (Cynara scolymus L.) cultivated in Uzbekistan, qualitative and quantitative analysis of some biologically active substances contained in the raw material was carried out, as well as a comparative assessment of their accumulation in the plant growing in different climatic conditions. During qualitative analysis of artichoke prickly raw material cultivated in Uzbekistan, identified important biologically active substances such as phenolic compounds, oxycinnamic acids and flavonoids, tannins, amino acids, and ascorbic acid. Results. The quantitative analysis conducted on artichoke raw material revealed a notably high concentration of several biologically active compounds. Specifically, the study identified significant levels of chlorogenic acid, which is known for its antioxidant properties; cynaroside, recognized for its potential health benefits; riboflavin, an essential vitamin; caffeine, a stimulant; and caffeic acid, another potent antioxidant. These findings underscore the nutritional value and potential therapeutic applications of artichoke. Conclusions. The artichoke prickly (Cynara cardunculus) is notable for its significant accumulation of essential bioelements, including sodium, potassium, calcium, and magnesium. These minerals are present in high concentrations within the plant's raw material, suggesting that it possesses valuable medicinal properties. The therapeutic potential of these elements enhances the appeal of an artichoke prickly as a promising source for medicinal applications. [ABSTRACT FROM AUTHOR]

The aim of the work was to develop a «green» and extraction-free spectrophotometric procedure for the assay of rosuvastatin in tablets. The present work describes three new spectrophotometric procedures (A, B and C) that can be utilized for routine quality control of rosuvastatin in laboratories. Materials and methods. Analytical instrumentation: Shimadzu UV-1800 double beam UV-vis spectrophotometer (Japan) with attached UV-Probe ver. 2.62 software, RAD WAG AS 200/C precise analytical balance (Poland). Rosuvastatin calcium (purity≥98 % (HPLC)) was bought from Sigma-Aldrich Chemicals Co. (St. Louis, MO, USA). Rosuvastatin 10 mg tablets were acquired from a nearby drugstore. All solvents used in this study, including methanol, ethanol, chloroform, acetonitrile and ethyl acetate, were produced by Honeywell and had a purity of 99.9 %. BCG, BCP and BTB were acquired from Sigma-Aldrich Chemicals Co. (USA, St. Louis). All chemicals utilized in the experiment were of analytical purity. Results and discussion. New simple «green» and extraction-free spectrophotometric procedures for assay of rosuvastatin in tablets involve the formation of ion-pair complexes with sulphophtalein dyes (BCG (Method A), BCP (Method B), BTB (Method C)) have been developed. The absorbances of the coloured reaction products were registered at 405 nm (Method A) and 400 nm (Methods B, C). The concentration was linearly proportional to absorbance values in the range of 2.51-20.08 μg/mL (method A), 2.50-24.90 μg/mL (method B) and 2.51-12.56 μg/mL (method C). Estimation of LOD and LOQ parameters were obtained as 0.67 μg/mL and 2.23 μg/mL (method A), 0.39 μg/mL and 1.32 μg/mL (method B), 0.30 μg/mL and 1.01 μg/mL (method C). The stoichiometric ratio of the reactive components of rosuvastatin - BCG, BCP, and BTB corresponded 1: 1. The %RSD values of intra-day and inter-day were obtained less than <1.5 %, which showed excellent repeatability and RE % data was ≤3 %. The effect on the environment of the proposed spectrophotometric procedures and their compliance with the GAC principles were endorsed by the output of AGREE, GAPI, and AES metrics tools. The values of these three «green» metrics show that the proposed spectrophotometric procedures had a low environmental impact compared with the reported ones. Conclusions. The developed fast, simple and cost-effective methods A, B, and C can be used for routine analysis of rosuvastatin in tablets. [ABSTRACT FROM AUTHOR]

The mutual separation of Am and Cm is conducted using an alkyl-diamide amine (ADAAM(EH)) extractant. ADAAM(EH) exhibits an extremely high separation factor (SF) with respect to Am and Cm separation (SF = 5.9) in an HNO3-n-dodecane system. The batch-wise multistage extractions are performed using a system containing 0.2 M ADAAM(EH) and 1.5 M HNO3, with their distribution ratios (D) of the system for Am and Cm equal to 2.55 and 0.434, respectively. In this multistage extraction, 3 stages of feed, 9 stages involving scrubbing, and 11 stages involving the use of an organic solvent give 96.5% and 1.06% yields of Am and Cm, respectively. After the mutual separation, the aqueous and the organic phases including actinides increase four times in volume compared to the feed solution. Additional extraction steps are to reduce the volume of the solutions including actinides. We use tetraethyl diglycolamide (TEDGA)/water for Am concentration, tetraoctyl diglycolamide/n-dodecane for the intermediate extraction, and TEDGA/water for stripping in the Cm concentration step. Taking the additional steps, Am and Cm can be recovered in just two or three stages in the aqueous phases. [ABSTRACT FROM AUTHOR]

In aqueous aluminum‐ion batteries (AAIBs), the insertion/extraction chemistry of Al3+ often leads to poor kinetics, whereas the rapid diffusion kinetics of hydronium ions (H3O+) may offer the solution. However, the presence of considerable Al3+ in the electrolyte hinders the insertion reaction of H3O+. Herein, we report how oxygen‐deficient α‐MoO3 nanosheets unlock selective H3O+ insertion in a mild aluminum‐ion electrolyte. The abundant oxygen defects impede the insertion of Al3+ due to excessively strong adsorption, while allowing H3O+ to be inserted/diffused through the Grotthuss proton conduction mechanism. This research advances our understanding of the mechanism behind selective H3O+ insertion in mild electrolytes. [ABSTRACT FROM AUTHOR]

The Copoazú is a Theobroma species of Amazonian origin, and its derived products have a high content of lipids valuable for both the cosmetic and food industries. The composition of the butter extracted from its seeds can vary depending on the postharvest process and the diverse extraction techniques employed. In this study, the composition of this butter processed with and without seed fermentation was analyzed using two extraction techniques: expeller pressing and hydraulic pressing. Parameters such as lipid profile, quality indexes, melting point, and the content of phytosterols and glyceric compounds were compared with a highly sought-after commercial raw material assessed through standardized volumetric and spectroscopic methodologies. The results showed that non-fermentation and cold-pressing conditions preserved the properties of the butter. This analysis is the first step in a standardized process for developing high-quality cosmetic ingredients derived from Copoazú butter. [ABSTRACT FROM AUTHOR]

A study of the liquid–liquid extraction of ReO4− anions from hydrochloric acid solutions using the ionic liquid Aliquat 336 (QCl: trialkyl(C8–C10)methylammonium chloride) via the well-known method of slope analysis along with the determination of the process parameters is presented. This study employs CCl4, CHCl3 and C6H12 as diluents. This study was carried out at room temperature (22 ± 2) °C and an aqueous/organic volumetric ratio of unity. The ligand effect on the complexation properties of ReO4− is quantitatively assessed in different organic media. The organic extract in chloroform media is examined through 1H, 13C and 15N NMR analysis as well as the HRMS technique and UV-Vis spectroscopy in order to view the anion exchange and ligand coordination in the organic phase solution. Final conclusions are given highlighting the role of the molecular diluent in complexation processes and selectivity involving ionic liquid ligands and various metal s-, p-, d- and f-cations. ReO4− ions have shown one of the best solvent extraction behaviors compared to other ions. For instance, the Aliquat 336 derivative bearing Cl− functions shows strongly enhanced extraction as well as pronounced separation abilities towards ReO4−. [ABSTRACT FROM AUTHOR]

Fish skin is in collagen (80-90%). However, catfish (Pangasius sp.) skin has a high lipid content which can reduce the quality of collagen. Therefore, treatment is needed to remove the lipid using ultrasonic assisted extraction (UAE) with ethanol. Hence, the aim of present study was to remove lipid content from catfish skin as a raw material of collagen by using UAE with different concentrations of ethanol (25, 50, 75%). The research was conducted in three stages: removing impurities, collagen extraction and characterization of collagen. The result exhibited that UAE-ethanol treatment was capable to remove up to 85.6% of lipid content and the produced collagen was potential to be utilized as an alternative source of collagen based on its properties [ABSTRACT FROM AUTHOR]

The primary aim of this study was to define the final pit boundaries utilizing the maximum flow Pseudoflow method in an open-pit mining context. Our methodology encompassed exploratory data analysis (EDA), establishing geomechanical and economic factors, and assessing the final pit. The study was conducted using Python 3.11 and SGeMS 3.0. We discovered that our block model comprised 480,000 blocks of 10x10x10 m dimensions. We generated 20 pits with revenue factors between 0.1 to 2, increasing by increments of 0.1. The Study indicated that pit 20 was optimal, with an estimated NPV of 17855 MUSD, extracting 212 million tons of ore and 58 million tons of waste rock, achieving a stripping ratio based on block model and market conditions, and is subject to change with further block sequencing analysis. Nevertheless, pit 20 emerged as the most advantageous when considering economic feasibility, given its high estimated NPV and favorable stripping ratio. [ABSTRACT FROM AUTHOR]

The thermodynamic and kinetic contributions to the over-extraction of extractables by nonpolar organic solvents relative to biological lipids in exhaustive and exaggerated extractions of medical devices are studied based on the Abraham solvation model and solvent–material interactions, using low-density polyethylene (LDPE) as an exemplary material. The thermodynamic effect is evaluated by the partition constant of extractables between LDPE and extraction solvents, hexane and lipids, defined as the concentration in the polymer phase divided by the concentration in the solvent phase. The Abraham solvation model is used to correlate the measured LDPE-lipid partition constant ( l o g 10 P l d p e / l i p i d ) to construct the predictive model. Similar models are also derived from the thermodynamic cycle conversion, using the system constants of LDPE-water and Lipid-water partition systems. These constructed models, together with the predictive LDPE-hexane ( l o g 10 P l d p e / h e x a n e ) model established from a previous study, are used to predict and compare the ranges and values of P l d p e / s (s = lipids and hexane) for the observed LDPE extractables over a wide hydrophobicity range in l o g 10 P o / w from zero to 30. The solvent-LDPE interactions are examined by the degree of swelling of LDPE by hexane (or other nonpolar solvents) and lipids, including the solvent diffusion rates into the material. These parameters allow the evaluation of kinetic effect on the over-extraction. The extent of over-extraction is compiled directly by experimental "overall" or "specific" migration data or indirectly calculated by the diffusion coefficient of extractables when extracted by hexane or lipids. It is concluded from this study that the extractables distribution between LDPE and lipids highly favors the lipid phase thermodynamically ( P l d p e / l i p i d < 1 ), and the values of P l d p e / l i p i d are always lower than those of P l d p e / h e x a n e , thereby indicating that the thermodynamic effect is not the cause of over-extraction. It is the kinetic effect that dominantly contributes to the over-extraction, as supported by the material swelling and solvent diffusion rates. Finally, the extent of over-extraction has been established from a few folds to over a hundred-fold, and the median value is 7. Furthermore, the methods adopted and developed in this study can be invaluable tools in other disciplines such as the reliable prediction of extractables from other device materials and environmental sampling. [ABSTRACT FROM AUTHOR]

The biogas production from biomasses for energy production, must be considered as last step in the ideal biorefinery supply chain, since the extraction of valuable subproducts has greater importance and must be performed earlier than the final preparation of bio-digestates. This study aims to prove the technical feasibility of carrying out both these processes, or the initial extraction of valuable subproducts and the following production of biogas. Moreover, it aims to quantify the benefits introduced, in terms of biogas production, related to the addition of pomace to the digestate inoculation. For the scope, biogas was produced, in lab-scale apparatuses, starting from different digestate samples; among them, one was enriched with untreated pomace and another with the treated one, consisting of the residual of pomace used for sub-products extraction. Based on the measured quantity of biogas achieved, the energy produced was quantified; conversely, the energy consumed was evaluated according to the plant efficiencies declared in literature. The daily energy production and consumption were compared to define the optimal production period and, according to it, the quantity of energy lost, referred to the unextracted biogas from digestates, was quantified and the efficiency was re-defined. The benefits related to the addition of pomace and, in particular, treated pomace, were defined as a function of the overall energy production, the percentage of energy lost (or produced outside from the optimal production period) and the re-defined process efficiency. Finally, the energy obtainable per unit of dry matter and volatile solids was calculated. [ABSTRACT FROM AUTHOR]

This work demonstrates the extraction of crude lipid and crude polysaccharide from rambutan (Nephelium lappaceum Linn.) seed using supercritical CO2 with ethanol as co-solvent (SCE) and subcritical water (SCW) extractions, respectively. As dried rambutan seeds contain 32.48 ± 1.07 g of extractable lipid/100 g dried sample, pre-extraction of 16.65% of the lipid content by a screw pressing machine improved the efficiency of SCE extraction. Moreover, the addition of ethanol as a co-solvent resulted in a fivefold improvement in phenolic compound extraction. The crude lipid extract had a total phenolic content of 163.81 ± 0.47 mg GAE/100 g extract. The SCW extraction was investigated by a Box-Behnken design using extraction yield and total sugar content as responses. The optimal condition was found at temperature range of 150–180°C and extraction time in the range of 15–60 min where both responses were maximized. The solid residue discharged from subcritical water extractor was identified as hydrochar because it contained rich oxygen functional groups. This zero-waste process produced 5.2 kg of SCCO2-extracted lipid, 16.2 kg of crude polysaccharide, and 37.7 kg of hydrochar from 100 kg of fresh rambutan seed. [ABSTRACT FROM AUTHOR]

The extraction of xylose, glucose, fructose, and other sugars in different brown juice (BJ) biomasses in a green biorefinery may be used on a large scale for fermentation and biobased production. A comparative study of different BJ obtained in a biorefinery demonstration platform was conducted employing white clover, red clover, grass-clover mixture, alfalfa, festulolium, and ryegrass as feedstock. In the green biorefinery, the biomass was submitted to mechanica wetl fractionation in which a green juice (GJ) and a fiber cake fraction were separated. The protein was extracted from the GJ by using heat precipitation at 85 ˚C and, sent to a decanter centrifugation, where a leaf protein concentrate was separated from the BJ. Total sugar content varied between 29.10 g/L to 10.82 g/L, in BJ from the different feedstocks. Glucose constitutes the carbohydrate with the highest concentration in BJ of festulolium, ryegrass, red clover, and grass-clover feedstock. Among all the remaining carbohydrates in the BJ, xylose is the major sugar in BJ from alfalfa and white clover. However, the highest xylose concentration was in red clover with 7.04 g/L. Ryegrass showed a higher concentration of fructose with 9.17 g/L. In general, fructose was extracted in all the BJ biomasses with quantities up to 4.73 g/L, except alfalfa with 1.81 g/L. Ryegrass and festulolium exhibited a majority concentration with 5.19 and 8.43 g/L of sucrose. Maltose and galactose presented low sugar concentrations and arabinose had the lower concentrations in BJ biomasses. [ABSTRACT FROM AUTHOR]

This study delves into the principles of the Circular Economy by focusing on the extraction of polyphenols from hazelnut skin wastes. The project’s innovation lies in the pioneering use of a 50% vol/vol water-ethanol mixture as a solvent for polyphenol extraction, within a custom batch set-up. The primary objective was to explore both equilibrium and kinetic aspects of this novel system. Initial experiments involved maintaining the solvent at 70°C for six hours to reach equilibrium, while varying solid/liquid ratios from 0.16 to 50 g/L. A fitting of the experimental data with an equilibrium modelling revealed values of qtot = 0.255 g/g and k = 0.0092 L/g as the total amount of extractable polyphenols and the solid-liquid linear isotherm partition coefficient, respectively. Furthermore, kinetics of the extraction process was investigated across three different solid-liquid ratios (0.54, 1.00 and 2.00 g/L). Concentration measurements at different time intervals were fitted with the Linear Driving Force (LDF) kinetic model, allowing for the estimation of the LDF mass transfer coefficient akLDF for each solid-liquid dosage. Notably, the thermodynamic and kinetic parameters derived in this study are unique, since they are specifically tailored to the utilization of a 50% vol/vol water-ethanol mixture as polyphenol extraction solvent. This research underscores the potential of utilizing such solvent mixtures in polyphenol extraction from biomass wastes, thereby contributing to the advancement of sustainable practices within the Circular Economy framework. [ABSTRACT FROM AUTHOR]

There is an increasing need to produce more energy from renewable sources and improve the energy efficiency of the processes to reduce the environmental impact. At the same time, it would also be desirable to enhance the reuse of by-products from the perspective of a circular economy. With this purpose in mind it is of great interest considering the recovery of the olive pits along the extraction process for energy reuses. From this perspective, it is of great interest to consider the recovery of olive stones along the extraction process for energy reuse, in particular for the reduction of energy consumption linked to heat treatments for the conditioning of olive pastes. Mainly there are two ways to recover pits during the process: 1) by using a pomace destoner machine at the end of the process; 2) by using a combined crusher-destoner machine at the beginning of the process. In this work, the quality as biofuel of olive stones recovered with both methods was considered to evaluate the possible energy savings compared to the reference case (process line without stone recovery). In addition, the sustainability of the processes was evaluated by considering the increase in electrical energy required by the addition of the new pitting machines. The results show how an adequate organization and management of the process can lead to benefits both in terms of energy savings and plant operating costs. [ABSTRACT FROM AUTHOR]

Gelatin is a derived, protein-based biopolymer used in nourishments to enhance consistency, strength, and flexibility. The aim of this research is to optimize the organic acid extraction of gelatin from fish skin. In this work, effect of parameters such as acid (based on its type) concentration (0.05-0.15 M), extraction temperature (40-60 °C), and types of acid (formic, acetic and propionic acids) on extraction yield of gelatin was examined at constant extraction time of 7 d and skin to acid mass ratio of 1:20. Collagenous material was separated from fish skin, and a basic protein, collagen, was hydrolyzed to gelatin, a derived protein. Response surface methodology (RSM) based Box- Wilson design was used for optimization and the optimization results revealed that the maximum gelatin extraction of 11.91% was achieved at 0.1 M formic acid and 52 °C. Thus, it would be concluded that the fish skin could be the potential feedstock for gelatin extraction. [ABSTRACT FROM AUTHOR]

Natural deep eutectic solvents (NaDES) represent a new generation of green, non-flammable solvents, useful as an efficient alternative to the well-known ionic liquids. They can be easily prepared and exhibit unexpected solubilizing power for lipophilic molecules, although those of a hydrophilic nature are mostly used. For their unique properties, they can be recommend for different cosmetic and pharmaceutical applications, ranging from sustainable extraction, obtaining ready-to-use ingredients, to the development of biocompatible drug delivery responsive systems. In the biomedical field, NaDES can be used as biopolymer modifiers, acting as delivery compounds also known as "therapeutic deep eutectic systems", being able to solubilize and stabilize different chemical and galenical formulations. The aim of this review is to give an overview of the current knowledge regarding natural deep eutectic solvents specifically applied in the cosmetic and pharmaceutical fields. The work could help to disclose new opportunities and challenges for their implementation not only as green alternative solvents but also as potential useful pathways to deliver bioactive ingredients in innovative formulations. [ABSTRACT FROM AUTHOR]

The snakehead fish (Channa striata) is commonly used as a raw material in traditional South Sumatran foods. However, some parts of this fish, such as bone, skin, and viscera, are not used in food processing. This study aimed to determine the characterization of hydroxyapatite snakehead fish bone with different extraction times using ultrasound-assisted extraction followed by the calcination method. Hydroxyapatite was extracted using sodium hydroxide with three different extraction times (20, 40, and 60 minutes) before proceeding with calcination. The extraction yield ranges from about 16.03% to 19.99%. The smallest particle size is found at 40 minutes of extraction time (63.90 nm). The ash content of the hydroxyapatite ranges from about 98.09% to 99.04%, calcium from about 17.86% to 18.12%, and phosphorus from about 10.23% to 10.74%. The non-stoichiometric form is present in the hydroxyapatite from snakehead fish bone, with a Ca/P ratio of about 1.69 to 1.72. Analysis of the hydroxyapatite functional groups in snakehead fish bone showed the presence of phosphate groups, carbonate groups, and hydroxyl groups. This data indicates that hydroxyapatite was successfully extracted from snakehead fish bone in nanoparticle form. Therefore, snakehead fish bone can be used as a source of hydroxyapatite. [ABSTRACT FROM AUTHOR]

Efficient and cost-effective biosorbents derived from biowaste are highly demanding to handle various environmental challenges, and demonstrate the remarkable synergy between sustainability and innovation. In this study, the extraction of uranium U(VI) was investigated on biowaste activated carbon (BAC) obtained by chemical activation (phosphoric acid) using Albizia Lebbeck pods as biowaste. The biowaste powder (BP), biowaste charcoal (BC) and BAC were evaluated by thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR) and Brunauer-Emmett-Teller (BET) with nitrogen adsorption for thermal properties, chemical structures, porosity and surface area, respectively. The pHPZC for acidic or basic nature of the surface and X-ray diffraction (XRD) analysis were performed for BAC. The morphological and elemental analysis were performed by scanning electron microscopy (SEM) and energy dispersive X-ray (EDX). The extraction of uranium U(VI) ions from aqueous solutions using BAC as sorbent was investigated by using different variables such as pH, contact time, initial uranium U(VI) concentration and BAC dose. The highest adsorption (90.60% was achieved at 0.5 g BAC dose, 2 h contact time, pH 6, 10 ppm initial U(VI) concentration and with 200 rpm shaking speeds. The production of this efficient adsorbent from biowaste could be a potential step forward in adsorption of uranium to meet the high demand of uranium for nuclear energy applications. [ABSTRACT FROM AUTHOR]

In this study, the impact of ozonation on hazelnut oil quality was investigated. Hazelnuts were exposed to gaseous ozone at different concentrations (3.3 and 10 mg·L-1) and exposure times (30, 60, and 120 min). The fatty acid value and composition remained unchanged. β-sitosterol, campesterol, and Δ5-avenasterol contents were unaffected. With increasing ozone levels and exposure times, there was a slight rise in peroxide value and γ-tocopherol, and a decrease in α-tocopherol. The total phenolic content and antioxidant activity were lower in oil extracted from hazelnuts which had been ozonated for more than 60 min at both doses, compared to the control. Overall, the quality and composition of hazelnut oil remained stable with ozone treatments, depending on the treatment conditions [ABSTRACT FROM AUTHOR]

The purpose of this research was to determine the technical feasibility of extracting amaranth seed oil with butane in a subcritical state and to take advantage of the cake generated. To this end, a type of non-germinated grain was characterized, oil was extracted from a germinated grain and the characterized one, the oil obtained was characterized, and the protein was extracted from the defatted cake of the non-germinated one. It was found that the non-germinated grain was made up of 13.33% protein, 7.24% fat, and 9.02% moisture, the optimum yield of this grain was 91%, for the germinated grain, a maximum value of 6.63% for oil mass. By comparing the characteristics of both oils, higher quality was found in the non-germinated oil, and the maximum protein extraction productivity was 5.15%. Thus, it has been concluded that this extraction method is technically feasible. [ABSTRACT FROM AUTHOR]

The sample preparation including labeling and clean‐up represents a key analytical step in the analysis of oligosaccharides and glycans by either chromatographic or electrophoretic separation methods. Although the majority of labeling has been performed by neutral and/or negatively charged tags, the introduction of a positive charge into the saccharide molecule can significantly improve the analysis, especially with mass spectrometry detection. In this work, we present the evaluation of five solid‐phase extraction sorbents differing in extraction chemistry for the clean‐up and concentration of positively labeled maltooligosaccharides from the reaction mixtures. Maltooligosaccharides containing four to seven glucose units were labeled by cationic tags (2‐aminoethyl)trimethylammonium chloride and (carboxymethyl)trimethylammonium chloride hydrazide and the extraction conditions were optimized followed by electrophoretic analysis with conductivity detection. The effects of the solid‐phase extraction sorbent chemistry, extraction conditions, and sample composition are discussed. All tested sorbents were capable of cleaning up maltooligosaccharides from the reaction mixtures to some extent after optimization of the solid‐phase extraction procedure (51.9%–98.9% recovery). The best‐rated amide‐based sorbent was used to process the sample of N‐linked glycans enzymatically released from ribonuclease B. [ABSTRACT FROM AUTHOR]

In this study, an ultrasound-assisted ethanolic extraction technique was used for the first time with success to extract oil from Pistacia vera L. The influence of extraction temperature (25, 37.5, 50°C), extraction time (10, 20, 30 min), and solvent-to-solid ratio (2:1, 4:1, 6:1) on oil efficiency was studied. Ultrasound-assisted extraction is a sustainable extraction technology that uses non-toxic organic solvents like ethanol instead of traditional solvents. According to numerical optimization, the ideal extraction parameters were 32.74°C extraction temperature, 29.47 min extraction time, and 5.94:1 extraction solvent to solid ratio. At these ideal conditions, oil yield is predicted to be 23.54% and experimentally obtained to be 22.04%. The study discovered that linear and quadratic levels of extraction time, as well as interaction levels of extraction time and solvent-to-solid ratio, had a significant effect on oil yield. It can be stated that the ultrasound-assisted ethanolic method is effective in providing high oil yields compared to traditional methods, reducing extraction time and temperature, and allowing the use of alternative green solvents. [ABSTRACT FROM AUTHOR]

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Erucamide is a long-chain carboxylic acid amide used as a slip agent in plastic films. In this research, the slip additive in polypropylene masterbatch with 6% erucamide content was extracted by comparing two methods which are dissolution-precipitation (DP) and the Soxhlet method. The variant of sonication times in the DP method and extractor-solvents in the Soxhlet method were done to determine the optimum parameter in each method. The examination of slip additive content in each extraction method used the KBr Disk-FTIR and the weight loss of sample analysis. The form of the sample, which was in the granule and powder form was also studied. Based on the result, the DP method with 3 minutes of sonication times and the use of ethyl acetate as extractor solvent in the Soxhlet method gave a closer result for additive content in the masterbatch. The powder form of the sample also gave better results than the granule form for the extraction of erucamide. The Soxhlet method in the powder form showed comparable results with the DP method by KBr Disk-FTIR analysis and higher results by weight loss analysis. By comparing the two methods of extraction, the Soxhlet method showed more robustness and efficiency for extraction of erucamide additive in polypropylene masterbatch than the dissolution-precipitation method. [ABSTRACT FROM AUTHOR]

This study aims to determine: the results of the development of grind size and cold brew extraction video tutorials; the feasibility of grind size and cold brew extraction video tutorial materials. The feasibility of grind size and cold brew extraction video tutorial media; and user responses to grind size and cold brew extraction video tutorials. This research method is development-type research. Namely adapted using the 4D development model with only three stages due to the limited time and costs required for research. Validation of this video tutorial involves two material experts and two media experts; the object of research is a video tutorial. Questionnaires were used in data collection consisting of material validation, media, and video tutorial user responses. The data analysis technique was carried out descriptively and quantitatively. The results of the video tutorial that have been made in the form of online links cover the material of coffee brewing techniques with grind size and cold brew extraction; The video tutorial material is considered feasible with an average of 80%. The video tutorial media is very feasible with an average score of 84%, and the junior barista response obtained an average score of 83% with a very good interpretation. This implies that the video tutorial of the research results can be used in training activities on coffee blending techniques with grind size and cold brew extraction. [ABSTRACT FROM AUTHOR]

Calcined soda production is one of the important parts of the industry. One of the main problems in the production of soda is the waste of raw materials. Disposing of some raw materials as waste not only causes economic damage but also has a negative impact on the environment. Absorption is the main process in the production of calcined soda. By finding the optimal consumption of the chemical components involved in absorption process, it will be possible to reduce the amount of raw materials released into the waste. In this work, initially, the kinetic model of the absorption process was found using the stoichiometric matrix method. Based on the stoichiometric matrix, the main components (NH3, CO2, NH4HCO3, NaCl) participating in the chemical reaction were identified. Using the found kinetic model, a computer model of the absorption process was simulated in the MATLAB program. Based on the simulated computer model, a diagram of changes in the concentration of components in the absorption process over time was obtained. The use of the considered mathematical model as part of the absorption process control system allows: (1) Reduce the loss of the amount of gases used in the absorption process; (2) Provide the required concentration of liquid saturated with ammonia; (3) Determine the required temperature regime along the entire length of the absorber. [ABSTRACT FROM AUTHOR]

Cellular lightweight concrete (CLC), also known as foamed concrete, has been extensively used in construction for decades. Foamed concrete's properties include low density, excellent thermal conductivity, great workability, and selfcompaction; these features enable foamed concrete to be utilized in various contexts. However, the excessive use of conventional materials in concrete production harms the environment. Therefore, using agro-waste as a material to construct ecologically sustainable structures has numerous practical and financial benefits. Palm oil clinker (POC) is a waste product resulting from solid waste combustion during palm oil extraction. This research focused on the properties of foamed concrete with POC at 0%, 25%, 50%, 75%, and 100% as the fine aggregate replacement to develop lightweight foamed concrete (LFC) with a density of 1300 kg/m3. Besides, the potential of POC powder (POCP) and thermally activated POCP (TPOCP) at 0%, 10%, 20%, and 30% as cement replacements was examined. The development of compressive strength during a 90-day curing period was investigated. In addition, tensile and flexural strengths were assessed and reported, and the elastic modulus of the LFC was discussed. The transport properties of water absorption, porosity, and sorptivity were also investigated. The durability of concrete derivatives can exhibit the product's resistance to chemical attacks and environmental conditions. After 75 days of immersion in hydrochloric acid and magnesium sulfate, the chemical resistivity of the produced LFC was determined by measuring the loss in weight and compressive strength. In addition, the effects of elevated temperatures on the LFC were determined by analyzing the mass loss and compressive strength degradation of specimens exposed to temperatures ranging from 200 to 800 °C. The test results demonstrated that the complete replacement of sand with POC enhanced the compressive strength of LFC by more than 50%. Similarly, POC-based LFC had higher flexural and tensile strengths than normal LFC. Besides, substituting 20% of cement with TPOCP could improve the strength of LFC by 23% during the initial curing days. Utilizing the optimal proportions of POC and POCP could enhance the residual strengths of LFC. Therefore, POC has the potential to be utilized as a fine aggregate and cementitious material to produce sustainable concrete. [ABSTRACT FROM AUTHOR]

The main mechanisms of flotation activation by ions of metals are discussed and critically analyzed. It is shown that ions of metals can be both activators and depressants of flotation. Based on the mechanism of physisorption, it is revealed when metals act as activators and depressants. A method is proposed to stimulate selectivity of extraction of a target mineral in case of undesirable activation of flotation of associate components. The studies can be useful in selection of metal–activator, ratio of concentrations of activator and collector and pH of flotation system. [ABSTRACT FROM AUTHOR]

Objective: The antioxidant-rich artichoke bracts leaves are a particularly waste of the food industry. Thus, it would be possible to utilize a cheap and natural material, which is industrial waste, instead of synthetic antioxidants. The present study aimed to extract from the bract leaves of globe artichoke by ultrasound-assisted extraction and to evaluate their antioxidant activities. Materials and Methods: In this study, the effect of ultrasound-assisted extraction (UAE) on antioxidative properties was studied. The extracts were obtained from the leaves of the head part of the artichoke by using UAE and evaluated for their antioxidative properties. For this purpose, antioxidant activity methods were investigated for different extraction times. The results obtained were compared with standard antioxidants. Results: The results obtained from this study showed that the shorter extraction time resulted in higher antioxidative properties. Accordingly, in plant extracts prepared by UAE-1, the highest total phenolic content value (193.80 µg pyrocathecol equivalent/mg extract), the highest total flavonoid content value (254.13 µg catechin equivalent/mg extract), the highest total chlorophyll content value (10.68 µg/mL) and carotenoid (0.57 µg/mL) were found. Similarly, UAE-1 extracts showed the best results in terms of free radical scavenging activity. Also, the 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity of UAE-1 (89.09%) was determined to be higher than the standard antioxidant a-Tocopherol (85.68%) and very close to another standard antioxidant butylated hydroxyanisole (91.98%). Conclusion: UAE could be preferred instead of the traditional method (Soxhlet) as a shorter, eco-friendly, and low energy cost. [ABSTRACT FROM AUTHOR]

Objective: Arum L. is the largest genus of Aroids. Tubers, leaves, and fruits of Arum italicum Mill. (Araceae) are used as a traditional medicine in the treatment of hemorrhoids and in preparing local dishes in Turkey. In this study, the fatty acid contents of the wild and cultivated seed oils of A. italicum Mill. species from the Kırklareli region in Turkey were determined and compared by the gas chromatography-mass spectrometry method. Materials and Methods: Seed oils were obtained via petroleum ether extraction. Fatty acid methyl esters were prepared with boron trifluoride/methanol derivatization and analyzed with TC WAX capillary gas chromatographic column. Results: The amount of 13-phenyl tridecanoic acid, which is the specific fatty acid of Arum italicum Mill. species, was found to be similar in both samples. In addition, 2-hydroxy palmitic acid was identified for the first time in the same species. Conclusion: This is the first report on the presence of the 2-hydroxy palmitic acid content of Arum italicum Mill. seeds from Turkey. [ABSTRACT FROM AUTHOR]

The persimmon fruit (Diospyros kaki Thunb.) is renowned for its exceptional health benefits, which can be attributed to its abundance of bioactive compounds. This study aimed to optimize the extraction of bioactive compounds from persimmon peel, an underexplored waste biomass, within the frame of sustainability and a circular economy. For this reason, a comprehensive multi-factor extraction approach was employed. Specifically, diverse methods including a pulsed electric field and ultrasonication combined with simple stirring were explored. Through this systematic approach, the most efficient extraction process was determined, resulting in elevated yields of bioactive compounds, including polyphenols, ascorbic acid, and total carotenoids. Among the identified phenolic compounds, rutin emerged as the most abundant, with concentrations reaching up to 172.86 μg/g. Utilizing partial least squares analysis, the maximum predicted values for the bioactive compounds were determined, with total polyphenols reaching 7.17 mg GAE/g, ascorbic acid at 4.93 mg/g, and total carotenoids at 386.47 μg CtE/g. The antioxidant activity of the extracts was evaluated with the ferric reducing antioxidant power (FRAP), 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical, and H2O2 scavenging assays. The recorded antioxidant performance underscored the substantial potential of persimmon peels as a source of cost-effective extracts with high antioxidant activity. This study not only contributes to optimizing the bioactive compounds' extraction from persimmon peel but also highlights the process's viability by producing valuable extracts with antioxidant properties at low cost. [ABSTRACT FROM AUTHOR]

Sustainable and renewable sources of liquid and solid fuels are essential to prevent fossil fuel use from damaging the environment. Secondary agricultural residues, which are already transported to food processing centers, have great potential to be converted into biofuels. The wastes from coffee roasting, sugar production, and rice milling have been investigated using hydrothermal carbonization (HTC) to produce aqueous products containing monosaccharides alongside solid biofuels. These sugar-laden liquid products were characterized after pretreating coffee silverskins, sugarcane bagasse, and rice husks with HTC. They were then concentrated using direct contact membrane distillation (DCMD), a low-energy process that can use waste heat from other biorefinery processes. The higher heating value of the solid products was also characterized by bomb calorimetry. The liquid products from HTC of these wastes from food production were found to contain varying concentrations of glucose, xylose, galactose, and arabinose. DCMD was capable of concentrating the liquid products up to three times their original concentrations. Little difference was found among the higher heating values of the solid products after 180 °C HTC pretreatment compared to 200 °C pretreatment. HTC of waste from food processing can provide solid biofuels and liquid products containing sugars that can be concentrated using DCMD. [ABSTRACT FROM AUTHOR]

Carrier oils are used with essential oils to dilute and enhance skin penetration. They are composed of fatty acids, triglycerides, monoterpenes, and sesquiterpenes and are added to reduce potency and odor. Carrier oils have pharmaceutical applications and reduce cytotoxicity. Solvent extraction is a common practice in the production of industrial-scale carrier oils, but harmful to the environment, so new eco-friendly methods are being researched. This review documents the available characteristics of various carrier oils and identifies knowledge gaps for future studies. [ABSTRACT FROM AUTHOR]

In order to enhance the efficiency of heavy metal ion extraction from aqueous medium, new nanocomposite magnetic sorbents were synthesized on the base of natural zeolite (Zt) and nanoparticles of ZnFe2O4 (F). The composition, structure and physical–chemical properties of new composites with 2% (Zt-2F), 8% (Zt-8F) and 16% (Zt-16F) of zinc ferrite were characterized by XRD, BET adsorption–desorption of nitrogen, SEM with elemental mapping, TEM and magnetometry. The sorption capacity of materials was assessed towards Cu2+ ions in aqueous solutions, for which kinetic and equilibrium features of sorption were established. The maximal sorption capacity (amax, mg/g) of the studied materials increased in the order: Zt (19.4) < Zt-2F (27.3) < Zt-8F (30.2) < Zt-16F (32.8) < ZnFe2O4 (161.3). The kinetics of the sorption process followed a pseudo-second order kinetic model. The sorption equilibrium at zinc ferrite was successfully described by the Langmuir model, while the Freundlich model better fitted the sorption equilibrium on zeolite and composites. The efficiency of Cu2+ ion extraction from 320 mg/dm3 aqueous solution was 63% for composite Zt-16F and 100% for a sample of ZnFe2O4. It was established that the proposed composite sorbents provide the operation of several cycles without regeneration, they can be easily recycled with 0.1 N HCl solution and are capable of magnetic separation. The advantages of new composites and the proposed method of synthesis allow recommending these materials as effective sorbents of heavy metals from wastewater. [ABSTRACT FROM AUTHOR]

The food industry produces substantial amounts of waste, which can cause a lot of environmental issues. However, such waste is also a valuable source of bioactive substances that can potentially be used either by the food industry or other types of industries, in the production of medicines, nutraceuticals, cosmetics, etc. The present study proposes a novel approach to extract such bioactive compounds from orange peel waste using hydrophobic eutectic solvents synthesized with thymol and fatty acids (hexanoic and octanoic acid). A response surface methodology was employed to optimize the extraction conditions and achieve maximum recovery of carotenoids. The optimal hydrophobic eutectic solvent consisted of thymol and hexanoic acid at a molar ratio of 2:1, and the optimum extraction was achieved using a solvent-to-solid ratio of 12:1 and a temperature of 20 °C for 78 min; this resulted in a recovery of 259.45 μg of total carotenoids per g of dry matter, which is a significantly higher recovery compared to common organic solvents. Based on the above, it is demonstrated that hydrophobic eutectic solvents is a promising solvent that can be used to extract bioactive compounds from orange peel waste. [ABSTRACT FROM AUTHOR]

The tomato processing industry generates a significant amount of a by‐product (pomace), which is a mixture of peels and seeds. The purpose of this study was to compare the effects of conventional oven‐roasting (at 120°C, 150°C, and 180°C for 25 min) and innovative microwave‐roasting (at 240, 388, and 536 W for 3 min) pretreatments on the physicochemical properties, fatty acid profiles, bioactive contents, and aroma profiles of tomato seeds and their hexane‐extracted oils. The total flavonoids contents (TFCs) of the seeds decreased from 258.40 to 141.20 mg quercetin equivalent (QE) per kg after roasting. All roasting treatments improved the extractability of both α‐ and γ‐tocopherols. The amounts of total tocopherols in the seeds increased from 917.61 to 1256.25 mg kg–1 after pretreatment. Luteolin was found to be the most abundant phenolic in seed oils, increasing from 10.68 to 91.72 mg kg–1, followed by quercetin, ferulic acid, and catechin. Within each roasting technique, the ones treated at 150°C and 338 W yielded the oils with the highest concentrations of aroma compounds, 418 and 92 mg kg–1, respectively. The detrimental effect of microwave‐roasting on these compounds was more pronounced. In conclusion, microwave‐roasting at shorter times than conventional roasting produced tomato seed oils with well‐preserved bioactive components and few unfavorable changes. Industrial relevance: Conventional oven‐roasting has been widely applied to oilseeds to improve oil yield as well as to obtain desirable sensory characteristics of extracted oils for years. However, longer roasting times may also cause detrimental changes in the properties of oils. On the other side, microwave‐assisted applications as an emerging technology provide homogenous and well‐controlled heat distribution, shorter treatment times, and considerable energy savings for the processing of various foods. Microwave technology has been easily scaled up and is currently employed for sterilization, drying, pasteurization, precooking, and extraction by the food and chemistry industries. Therefore, the present research suggests the use of microwaves for comparatively short roasting times to produce edible oils with enhanced physicochemical attributes and bioactives contents, and well‐maintained sensory properties. This promising innovative technology has the potential to be industrialized for a cost‐effective seed roasting process. [ABSTRACT FROM AUTHOR]

Fenugreek (Trigonella-foenum-graecum.L) seeds are commonly utilized in cuisine as spices, in the traditional treatment and in the prevention of various troubles. This study attempts to assess the acute and subacute toxicity of its extract in wistar rats. In the acute toxicity, single oral administration of four doses (0,05 g, 0,3 g, 2 g and 5 g /kg.bw) to wistar rats was tested and to test subacute toxicity, quotidian oral administration of fenugreek seed extract at dosages of 1, 2 and 3 g/kg.bw was used for 28 days. The results of acute toxicity did not show any deaths and no indication of intoxication was observed in the rats for 14 days following receipt of the various doses of the extract. The subacute toxicity results demonstrated that repeated administration of the extract led to a significant weight gain (p<0.05) in treated rats in comparison to control rats. Treatment of rats with fenugreek seed extract did not cause any signs of intoxication and did not affect the hematological parameters of the rats compared to control rats (p>0.05). Gross examination revealed that the appearance of vital organs was not altered and histological examination revealed steatosis and an increase in the nuclei of hepatocytes in rats given a repeated dose of 3 g /kg of fenugreek seed extract. Fenugreek seeds extract is generally tolerated by rats even at high doses but more care should be taken at chronic use. [ABSTRACT FROM AUTHOR]