2,049 results on '"Pulp"'
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2. A cellulosic fibre foam as a bicycle helmet impact liner for brain injury mitigation in oblique impacts
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Feist, Florian, Wagner, Markus, Baumann, Georg, Spirk, Stefan, Biegler, Veronika, Jiang, Qixiang, and Nypelö, Tiina
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- 2025
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3. Loss of dental pulp potentially increased the risk of Alzheimer's dementia
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Son, Seung Hyun, Lee, Sang-woo, and Chung, Gehoon
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- 2025
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4. Argan: Phytochemical profiling and evaluation of the antioxidant, hypoglycemic, and antibacterial properties of its fruit pulp extracts
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Alaoui, Asmae, Sahri, Nihad, Mahdi, Ismail, Fahsi, Nidal, El herradi, El hassania, and Sobeh, Mansour
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- 2024
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5. Tamarind (Tamarindus indica L.) Components as a Sustainable Replacement for Pork Meat in Frankfurter Sausages.
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Passos, Rafael Sepúlveda F. Trevisan, de Sousa, Camila Cristina A., da Silva, Mauricio C. A., Herrero, Ana M., Ruiz-Capillas, Claudia, and Cavalheiro, Carlos Pasqualin
- Abstract
Five types of frankfurters were formulated: a control without tamarind (T0) and four samples using 5% tamarind pulp paste (PT5), seeds (ST5), peel (CT5), and a blend of all of them (PSCT5), replacing the same portion of meat. The inclusion of tamarind components led to a reduction in the moisture and protein content of the reformulated frankfurters. In terms of mineral composition, CT5 showed the highest (p < 0.05) calcium content. Additionally, ST5 and CT5 treatments demonstrated the lowest processing loss values. The pH was lower in the PT5 treatment (p < 0.05). Incorporating tamarind components reduced the lightness (L*) of the frankfurters, resulting in darker sausages. However, ST5 exhibited greater redness (a*), while higher yellowness (b*) values were observed in PT5 and CT5 treatments (p < 0.05). Texture analysis revealed no differences (p > 0.05) in hardness and chewiness between T0 and PT5; however, ST5 exhibited the highest values for these parameters (p < 0.05). No variation in the conformational order of the lipid acyl chains due to the incorporation of tamarind compounds was observed related to physical entrapment of these compounds in the frankfurter matrix. Both T0 and PT5 were well accepted by consumers, and scores higher than 7 were observed for overall acceptability and purchase intention. The study demonstrated that incorporating tamarind components, especially pulp paste (PT), is a viable alternative for replacing lean pork meat in frankfurters, improving the sustainable aspects of frankfurter production. [ABSTRACT FROM AUTHOR]
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- 2025
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6. Ripening associated antioxidant and phytochemical changes in mango (Mangifera indica) cultivar Dusehri.
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Aniqa and Rizvi, Zarrin Fatima
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OXIDANT status , *FLAVONOIDS , *BENZOIC acid , *FRUIT ripening , *MANGO , *NUTRITIONAL value , *PHYTOCHEMICALS - Abstract
The phytochemical fingerprinting that add to the nutritional and nutraceutical value of the fruits during the ripening stages is beneficial for human consumption. Therefore, ripening-dependent changes in phytochemical content and antioxidant activities of mango (Mangifera indica L.) cultivar Dusehri at various ripening stages were evaluated. Bioassays for phenolic content, flavonoid content, antioxidant activities, and UHPLC/MS for phytochemical profiling was performed at five ripening stages (RSI-RSV). Total phenolic contents significantly increased from 4.25 to 13.08 µg GAE/mg extract upto stage III and non-significant decrease was observed thereafter. Flavonoid contents varied between 1.16 and 1.23 µg QE/mg extract. DPPH based free radical scavenging activity increased (41.07–52.33%) from stage I to stage V while FRSP based analysis showed decrease (53.01–27.61 µg TE/mg extract) in activity from stage I to stage V. Total antioxidant capacity and total reducing power potential of pulp extract gradually increased towards mango ripening stages. A non-significant change in amylase inhibition was observed from stage I to stage III that significantly dropped in stage IV and V. UHPLC analysis depicted that aconitic, methylisocitric, 2,4,6-Hydroxy benzoic acid and beta glucogallin, poly phenols, 1-Methylxanthine, 3-Furicacid, Heptenoic acid and many others are present at different ripening stages of dusehri mango. PCA analysis and hierarchal analysis show Stage I & II clustering while stages III-V make separate cluster. These phytochemiclas are responsible for many health benefits. The study concludes that dusehri mango have significant antioxidative capacity that are due to diverse phytochemicals. [ABSTRACT FROM AUTHOR]
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- 2025
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7. Comparative evaluation of cytotoxic effects of a new biomaterial nanohydroxyapatite-lactoferrin, nanohydroxyapatite, mineral trioxide aggregate, and calcium-enriched mixture on human dental pulp stem cells.
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Sadrabad, Zahra Khalili, Habibivand, Ehsan, Samiei, Mohammad, Shadkar, Mohammad Mostafa, and Farzi, Salar
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MINERAL aggregates ,DENTAL pulp ,STEM cells ,CYTOTOXINS ,CELL proliferation - Abstract
Background: Regenerative therapies are emerging as promising alternatives to traditional dental treatments, aiming to preserve pulp vitality. Identifying an ideal biomaterial is crucial for the success of these therapies. Aims: This study is the first to evaluate and compare the toxicity of nanohydroxyapatite (NHA), NHA-lactoferrin (NHA-LF), calcium-enriched mixture (CEM), and mineral trioxide aggregate (MTA) on dental pulp stem cells. Materials and Methods: Hydroxyapatite nanocrystals were functionalized with LF in a HEPES buffer to create the NHA-LF combination. MTA, CEM, and NHA were prepared under sterile conditions. The cytotoxicity was evaluated using the MTT assay. Two-way ANOVA was used for data analysis. Games–Howell and Sidak tests were utilized for further analysis post-ANOVA. Results: The highest cytotoxicity was observed with NHA-LF at a 1000% concentration after 48 h, averaging 45.68%. In contrast, the lowest cytotoxicity was noted with MTA at a 10% concentration within 24 h, averaging 229.53%. There was a significant statistical relationship between substance type and cellular viability (P < 0.05), whereas time showed no significant impact (P > 0.05). Conclusion: The findings indicate a significant correlation between the type of biomaterial used and its effect on cellular proliferation and viability, with time showing no significant influence. All the tested materials can be categorized as noncytotoxic materials, except NHA-LF in the highest concentration (1000%). The study suggests prioritizing low-dose NHA-LF for use. [ABSTRACT FROM AUTHOR]
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- 2025
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8. Comparative study of pulpal response following direct pulp capping using synthesized fluorapatite and hydroxyapatite nanoparticles
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Eman M. Salem, Omnia M. Abdelfatah, Rania A. Hanafy, Rehab M. El-Sharkawy, Ghadir Elnawawy, and Wafaa Yahia Alghonemy
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Direct Pulp Capping ,Fluorapatite ,Hydroxyapatite ,Nanoparticles ,Pulp ,MTA ,Dentistry ,RK1-715 - Abstract
Abstract Objective This study aimed to investigate and compare the histological response of rabbit dental pulp after direct pulp capping with 3 different materials: mineral trioxide aggregate (MTA), nanoparticles of fluorapatite (Nano-FA), and nanoparticles of hydroxyapatite (Nano-HA) after 4 and 6-week time intervals. Material and methods A total of 72 upper and lower incisor teeth from 18 rabbits were randomly categorized into 3 groups)24 incisors from six rabbits each. MTA Group: teeth were capped with MTA. Nano-FA Group: teeth were capped with fluorapatite nanoparticles. Nano-HA Group: teeth were capped with hydroxyapatite nanoparticles. Blood samples were collected to examine some antioxidant enzymes nitric oxide (NO), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione (GSH), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α). After that, three rabbits from each group were euthanized after 4 and 6 weeks, respectively. Pulp tissues of all teeth in all groups were histologically observed. Results The obtained results showed that both Nano-HA induced the formation of thick dentin bridges with irregular dentin patterns at 6 weeks, while MTA and Nano-FA induced no dentin bridge with no tubular dentin pattern. Blood examination at the two intervals revealed no significant increase or decrease in the values of NO, SOD, CAT, GPx, GSH, and TNF-α. However, there was a significant increase in p-values of IL-6 in the Nano-FA treated group compared to both MTA and Nano-HA treated groups at the two intervals. Regarding the inflammatory reaction of the dental pulp, the MTA and Nano-HA groups displayed moderate inflammation, followed by Nano-FA, which showed the highest prevalence of nonpathological inflammation. Histological results were consistent with the blood examination. After 4 weeks, the Nano-FA and Nano-HA groups showed pulp fibrosis at the operating site, but the MTA showed only granulation tissues. Plus, dilated blood vessels appeared in the Nano-FA group. After 6 weeks, MTA and Nano-FA groups showed pulp fibrosis at the operating site with the persistence of dilated blood vessels with Nano-FA. The nano-HA group showed dentin bridge formation at the operating site. Conclusion MTA and Nano-HA could be considered favorable materials for direct pulp capping, while Nano-FA produces nonpathological inflammatory cell reactions. Moreover, the Nano-HA was the best in dentin bridge formation. Although nano-FA increased the operating site closure, it was noticed that it significantly increased IL-6 compared to MTA at the two intervals and significantly increased IL-6 compared to Nano-HA at 6 weeks, which may be manifested as some nonpathological inflammations in the Nano-FA group compared to the other groups, but it was deemed acceptable to direct pulp capping procedures.
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- 2025
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9. Looking East and West for Pulpwood, Pulp and Paper: Great Britain as an Anomaly in Europe, 1860–1960
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Kuhlberg Mark and Särkkä Timo
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n 11 ,n 12 ,n 61 ,n 62 ,n 81 ,n 82 ,great britain ,canada ,newfoundland ,paper ,newsprint ,pulp ,timber ,großbritannien ,kanada ,neufundland ,papier ,zeitungspapier ,zellstoff ,holz ,Economic history and conditions ,HC10-1085 ,Economics as a science ,HB71-74 - Abstract
The years 1860 to 1960 witnessed the birth and rapid expansion of the modern pulp and paper industry. Its sine qua non was access to enormous volumes of conifer trees that grew in the northern hemisphere’s temperate and boreal forests. Predictably, countries in northern Europe with large swaths of these woodlands became home to substantial pulp and paper industries. This article explains why Great Britain represented Europe’s glaring exception to this rule. Unique circumstances allowed it to become Europe’s largest newsprint producer even though it suffered from a dearth of conifers. Britain’s newspaper publishers grew their circulations and created the largest newsprint market in Europe for most of the period under examination. To meet their exploding demand for paper, they gained control over their country’s newsprint industry. Like producers in other western European countries, they looked to Scandinavia to address their lack of domestic wood supplies, but they also exploited their imperial connection to access a prodigious supply of fibre and pulps in Canada and Newfoundland. Britain’s competitive advantage in this regard was political and not economic because tapping this distant source of raw materials was costly. Nevertheless, British producers were able to absorb the higher costs because their business was vertically integrated. However, British producers could not outrun their resource deficit forever. Changing global industry conditions after World War II caused them to lose their preponderant standing.
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- 2024
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10. Biological effect of modern bioactive materials used in direct and indirect capping; in vitro study
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Irina Maria Gheorghiu, Alexandru Andrei Iliescu, George Alexandru Denis Popescu, Stana Paunica, and Anca Silvia Dumitriu
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pulp ,capping materials ,fibroblasts ,cell culture ,cytotoxicity ,restorative dentistry ,bioactive products ,Medicine (General) ,R5-920 - Abstract
Objective. In this study, the biological effect of MTA Repair HP (Mineral Trioxide Aggregate Repair High Plasticity) and Biodentine have been tested on a stabilized fibroblast cell line NCTC clone 929. Materials and Methods. We assessed quantitative and qualitative parameters related to cytotoxic effect of the investigated products. The experimental period was 96 hours. Statistical analysis was performed with Kruskal-Wallis and Wilcoxon tests. Results. The detached cells test showed no statistically significant difference on cell culture for Biodentine and MTA Repair HP, while for the cellular density assay we found the same biological effect on the tested fibroblasts in the first 24 and 48 hours, but a significant different cellular response for the investigated pulp capping materials for the next 48 hours of the experiment. Conclusions. The results demonstrated that the materials presented a very low level of cytotoxicity. Biodentine showed in all parameters better biological effects than MTA Repair HP, expressed by lower and limited cellular damage and a higher cell density.
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- 2024
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11. Effect of Storage Temperature on Fruit Hardness and Anthocyanin Biosynthesis in Red Peeled Banana (Musa acuminata Hongmeiren).
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Yuji Huang, Ping Kou, Jie Luo, Chunling Chen, Jinman Li, Zhongxiong Lai, Lixiang Miao, and Yiting Chen
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EFFECT of temperature on fruit , *FRUIT skins , *TROPICAL fruit , *FRUIT growing , *BANANAS , *ANTHOCYANINS - Abstract
Bananas (Musa spp.) are a popular tropical fruit grown worldwide and are typically harvested when 70% to 80% plump. Postharvest storage is crucial for maintaining fruit quality, with temperature playing a key role due to banana sensitivity to low temperatures. Red peeled bananas, such as the cultivar Hongmeiren, stand out for their unique red peel and pink pulp when ripe. These bananas offer nutritional benefits and are rich in anthocyanins compared with yellow bananas. This study focused on the hardness change, anthocyanin content, and the expression of related genes in red peeled bananas at different temperatures. Results showed that pulp hardness reached an edible state after 4 days at 19 and 25 °C, with stability thereafter. Storage time at 10 °C was longer and anthocyanin content remained stable across temperatures. Gene expression analysis indicated that genes including MaPAL, MaCHS, MaCHI, MaDFR, and MaANS related to anthocyanin synthesis were highly expressed at 10 °C, potentially preserving anthocyanin content and fruit appearance. Although higher anthocyanin content was observed at 19 and 25 °C, black spots appeared on the fruit peel after 8 days, affecting its quality. After 30 days of storage at 10 °C, a significant number of black spots appeared on the peel of the fruit, leading to a gradual loss of its nutritional value. This study indicates that red peeled bananas can be stored for longer periods while maintaining their appearance quality at 10 °C, as opposed to 19 and 25 °C. Hence, it is recommended to store red peeled bananas at low temperatures, especially following ethylene treatment or during periods of high temperatures. [ABSTRACT FROM AUTHOR]
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- 2024
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12. Identification and Mining of Functional Components of Polyphenols in Fruits of Malus Germplasm Resources Based on Multivariate Analysis.
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Wang, Dajiang, Wang, Guangyi, Lu, Xiang, Liu, Zhao, Sun, Simiao, Guo, Hanxin, Tian, Wen, Li, Zichen, Wang, Lin, Li, Lianwen, Gao, Yuan, and Wang, Kun
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FRUIT juice processing ,GERMPLASM ,PRINCIPAL components analysis ,CLUSTER analysis (Statistics) ,RAW materials - Abstract
Polyphenols are important functional components that have anti-cancer and anti-inflammatory effects. Apple fruit is rich in polyphenols and is one of the dietary sources of polyphenols. The polyphenol components and contents of the peel and pulp of 74 Malus sieversii (Led.) Roem. and 26 Chinese Malus germplasm resources were determined using ultra-high-phase chromatography (UPLC) and liquid chromatography–mass spectrometry (LC–MS). The results showed that 34 components were detected in the peel and 30 in the flesh, and that the polyphenol components and contents of the different germplasm resources were significantly different; the polyphenol content of Malus sieversii (Led.) Roem. was significantly higher than that of the other local varieties, and the polyphenol content in the peel was also higher than that in the flesh. Rutin, quercetin 3-O-arabopyranoside, kaempferol 3-O-rutinoside, and peonidin 3-O-galactoside were detected only in the peel. The total polyphenol content in the peel ranged from 949.76 to 5840.06 mg/kg, and the polyphenol content in the pulp ranged from 367.31 to 5123.10 mg/kg. The cluster analysis of polyphenol components and contents in peel and pulp showed that 100 Malus germplasm resources could be grouped into four categories. Principal component analysis of 34 kinds and 30 kinds of polyphenols in peel and pulp of 100 resources was performed. If the eigenvalue is greater than 1, eight and seven principal components are extracted, respectively. Five Malus resources with high polyphenol content in the peel and pulp were selected: 'XY-77' (peel: 5840.06 mg/kg, pulp: 5123.10 mg/kg; 'LF-09' (peel: 4692.63 mg/kg, pulp: 3729.79 mg/kg); '2012-5' (peel: 4377.61 mg/kg, pulp: 3847.54 mg/kg); '29028' (peel: 5088.05 mg/kg, pulp: 3994.61 mg/kg); and '11-01' (peel: 5154.45 mg/kg, pulp: 3616.15 mg/kg). These results provide us with information regarding the polyphenol composition and content of the wild apple resources and local cultivars. The high polyphenol content resources obtained by screening can be used as raw materials for the extraction of polyphenol components and functional fruit juice processing and can also be used as parents for functional fruit creation and variety breeding. [ABSTRACT FROM AUTHOR]
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- 2024
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13. Development of Starter Inoculum for Controlled Arabica Coffee Fermentation Using Coffee By-Products (Pulp and Mucilage Broth), Yeast, and Lactic Acid Bacteria.
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Polanía Rivera, Anna María, López Silva, Jhennifer, Torres-Valenzuela, Laura Sofía, and Plaza Dorado, José Luis
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LACTIC acid fermentation ,BACTERIAL starter cultures ,BACTERIAL inactivation ,BIOMASS production ,MUCILAGE ,OCHRATOXINS - Abstract
Recent research has highlighted the effectiveness of starter inocula in fermentation processes. In this sense, this study examines the use of an inoculum composed of coffee pulp, mucilage broth, and microorganisms such as Saccharomyces cerevisiae, L. delbrueckii ssp. bulgaricus, and S. thermophilus in fermenting Castillo variety coffee. An inoculum was prepared, measuring variables such as the pH, acidity, °Brix, lactic acid bacteria, and yeast viability. Following optimization, the inoculum was evaluated in a fermentation process, evaluating the pH, °Brix, acidity, microbiological analysis, ochratoxin A, and cup quality post-drying and roasting. The findings demonstrated a significant reduction in the pH from 4.47 to 4.05 and in the °Brix from 15.8 to 8.45, indicating efficient organic acid production and sugar degradation. Acidity levels increased from 20.02 mg/g to 42.69 mg/g, while microbial viabilities remained above 10
7 CFUs/g, suggesting effective biomass production. The process effectively reduced the microbial load without detecting ochratoxin A. Sensory evaluations confirmed the enhanced cup quality, validating the positive impact of inoculum use in coffee fermentation. The results support the use of coffee pulp and mucilage broth as effective substrates for the growth of the evaluated microorganisms, and the application of starter cultures containing lactic acid bacteria and yeast can elevate the coffee to a specialty grade. [ABSTRACT FROM AUTHOR]- Published
- 2024
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14. Utilizing Flax Straw for Sustainable Paper Production: Delignification Methods, Structural Analysis, and Fiber Size Distribution Effects.
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Mashanova, Nurbibi, Satayeva, Zhuldyz, Smagulova, Mirgul, Kundyzbayeva, Nazigul, Ibzhanova, Ainur, and Karimova, Gulmaida
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SUSTAINABILITY ,AGRICULTURAL wastes ,WASTE minimization ,PARTICLE size distribution ,CIRCULAR economy - Abstract
This research explores the potential of agricultural waste, specifically flax straw, as a sustainable raw material for eco-friendly packaging materials. This study investigates a three-stage delignification process involving nitric acid, alkaline treatment, and organosolvent solutions. This method effectively removes lignin from the straw, resulting in high-quality technical pulp with 67.7% α-cellulose and a significantly reduced ash content (8.5%). X-ray diffraction (XRD) and thermogravimetric analysis (TGA) were employed to characterize the treated flax straw. XRD analysis revealed changes in the cellulose structure, while TGA indicated enhanced thermal stability compared to untreated straw. Microscopic analysis of the pulp fibers shows a parallel and aligned arrangement, suggesting a high fiber content and a strong paper lattice. The particle size distribution of the ground pulp, influenced by fiber size, has implications for the packing density and mechanical properties of the final product. This study demonstrates the potential of agricultural waste as a sustainable source for packaging materials, contributing to the circular economy and waste reduction. [ABSTRACT FROM AUTHOR]
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- 2024
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15. Asiatic acid reduces lipopolysaccharides-induced pulp inflammation through activation of nuclear factor erythroid 2-related factor 2 in rats.
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Cilmiaty, Risya, Nurhapsari, Arlina, Prayitno, Adi, Rahma, Annisa Aghnia, and Ilyas, Muhana Fawwazy
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NUCLEAR factor E2 related factor ,PULPITIS ,RATTUS norvegicus ,ENZYME-linked immunosorbent assay ,DENTAL pulp - Abstract
Background: Dental pulp inflammation, often initiated by Gram-negative microorganisms and lipopolysaccharides (LPS), can lead to pulpitis and, subsequently, dental pulp necrosis, compromising tooth structure and increasing susceptibility to fracture. Asiatic acid, derived from Centella asiatica, has demonstrated pharmacological properties, including anti-inflammatory and antioxidant effects, making it a potential candidate for mitigating LPS-induced pulp inflammation. This in vivo study aims to investigate the impact of Asiatic acid on the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway in Rattus norvegicus with LPS-induced pulp inflammation. Methods: This quasi-laboratory experimental in vivo study employed a post-test-only control group design to investigate the effects of Asiatic acid on LPS-induced pulp inflammation in Wistar rats. Thirty rats were randomly divided into six groups subjected to various interventions. LPS was administered to all groups for 6 h except the standard control group (CG, n = 5). The negative control group (NCG, n = 5) received only glass ionomer cement. The positive control group (PCG, n = 5) received Eugenol with glass ionomer cement. Intervention groups 1, 2, and 3 (IG1, IG2, IG3; n = 5 each) received Asiatic acid at concentrations of 0.5%, 1%, and 2%, respectively, with glass ionomer cement. Dental pulp inflammation was confirmed through immunological (tumor necrosis factor alpha (TNF-α) levels), histopathological (inflammatory parameters), and physiological (pain assessment using the rat grimace scale) analyses. Additionally, Nrf2 levels were examined using enzyme-linked immunosorbent assay (ELISA). Results: Asiatic acid administration significantly influenced Nrf2 levels in rats with LPS-induced pulp inflammation. Nrf2 levels were significantly higher in groups treated with 0.5% (IG1) (8.810 ± 1.092 ng/mL; p = 0.047), 1.0% (IG2) (9.132 ± 1.285 ng/mL; p = 0.020), and 2.0% (IG3) (11.972 ± 1.888 ng/mL; p = 0.000) Asiatic acid compared to NCG (7.146 ± 0.706). Notably, Nrf2 levels were also significantly higher in the 2.0% Asiatic acid group (IG3) compared to the PCG treated with Eugenol (8.846 ± 0.888 ng/mL; p = 0.001), as well as IG1 (p = 0.001) and IG2 (p = 0.002). However, no significant difference was observed between administering 0.5% Asiatic acid (IG1), 1.0% Asiatic acid (IG2), and Eugenol (PCG). Conclusion: This research showed that Asiatic acid significantly impacted the Nrf2 levels in rats with LPS-induced pulp inflammation. This suggests that it has the potential to be used as a therapeutic agent for reducing dental pulp inflammation. These findings support the need to further explore Asiatic acid as a promising intervention for maintaining dental pulp health. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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16. This is not America: ficção pulp, westerns e policiais no Portugal dos anos 1960
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Ricardo Namora
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Pulp ,Western ,Policial Negro ,Despersonalização ,Fluxo de Consciência ,French literature - Italian literature - Spanish literature - Portuguese literature ,PQ1-3999 - Abstract
O texto concentrar-se-á na tradição pulp que, tendo o seu período áureo na América do pré-Segunda Guerra Mundial, desagregou-se, já no pós-Guerra, a ponto de autonomizar os géneros fantástico, “western” e policial negro; e na forma como, no Portugal da década de 1960, com todas as suas idiossincrasias políticas, sociais e culturais, Roussado Pinto e Dinis Machado moldaram os clichés genéricos para construírem enredos, e protagonistas, ao mesmo tempo falíveis e maquinais, paroquiais e universais, fotográficos e fílmicos, tornando as suas narrativas simultaneamente em cópias do modelo e em reflexos reconhecíveis da vida quotidiana, em toda a sua inefável e desoladora sordidez.
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- 2025
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17. MATLAB-empowered brightness defect prediction system in pulp processing bleaching stage: An empirical modelling approach
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Michael, M. Thoriq Al Fath, Vikram Alexander, Gina Cynthia Raphita Hasibuan, Muhammad Syukri, Muhammad Hendra S. Ginting, Rivaldi Sidabutar, and Nisaul Fadilah Dalimunthe
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Pulp ,Brightness ,Predictive modeling ,Real-time prediction ,Bleaching process ,MATLAB program ,Environmental engineering ,TA170-171 ,Chemical engineering ,TP155-156 - Abstract
Pulp quality significantly affects paper products, necessitating a balance between brightness, strength, and environmental sustainability. The bleaching process, which includes delignification and brightening stages, is crucial for achieving high pulp brightness. Current pulp bleaching research emphasizes optimizing processes and developing predictive models for better quality control, yet real-time pulp brightness monitoring remains a challenge. This research developed a MATLAB program to predict pulp brightness and consistency in real-time during bleaching, conducted entirely without incurring any financial costs. Empirical models for predicting pulp consistency at the extraction-oxidative-peroxide (EOP) and D1 stages were created using second-order polynomial equations, incorporating production rate and inlet pressure as variables. Brightness increment correlations were formulated based on temperature, chemical flow rate, residence time, pH, and inlet pressure, with specific models for the preceding chlorine dioxide (DA), EOP, and second chlorine dioxide (D1) stages. Data normalization ensured efficient processing by standardizing parameter scales. Results showed relationships between brightness increment and parameters for each sub-stage such as DA is linear for pH, quadratic for chlorine dioxide (ClO2) flow rate, cubic for temperature and residence time; EOP is linear for hydrogen peroxide (H2O2) flow rate, quadratic for temperature, cubic for inlet pressure, residence time, and pH; D1 is linear for pH, quadratic for ClO2 flow rate and residence time, cubic for inlet pressure and temperature. The coefficient of determination (R2) for the DA, EOP, and D1 sub-stages are 0.85313, 0.86526, and 0.86322, respectively. Parameters with the highest contributions in each stage were identified, such as inlet pressure in the D1 substage yielding the highest brightness gain. This system offers an alternative approach for analyzing pulp quality issues and is adaptable to future mill operational needs.
- Published
- 2024
- Full Text
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18. Feasibility of Recycling the Filtrate from Acidified Black Liquor for Alkaline Pulping of Golden Bamboo Grass
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Jin-hui Wang, Tian Zhu, Yi-jing Li, Qian Wang, Yi-kai Ling, Meng-meng Chen, and Guang-zai Nong
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black liquor ,fiber materials ,filtrate ,pulp ,recirculation ,Biotechnology ,TP248.13-248.65 - Abstract
To reduce energy consumption, a new pulping process called A-D-E-RC (acidification/desalination/electrolysis/recycle-cooking) was developed by a research group in Guangxi University of China. The present work focuses on the step of recycle cooking (RC) to further investigate the technical feasibility of A-D-E-RC methods. Golden bamboo grass was considered as fiber source material for pulp, and it was cooked with the acidic treating of wastewater from black liquor. Then, the pulp obtained from each cooking was made into paper to test the changes in its physical properties. As a result, the pulp yield increased from 43.9% to 50.2%, after re-using acidified black liquor, and the paper's tear index and tensile index were improved. Therefore, this study demonstrated the feasibility of recycle cooking (RC) fiber materials for pulp applied the acidic treating wastewater from black liquor, and thereby, it further identifies the technical feasibility of A-D-E-RC pulping methods.
- Published
- 2024
19. Effectiveness of Lignocaine with and without Pre-operative Oral Ibuprofen in Controlling Pain in Primary Mandibular Molars with Irreversible Pulpitis in 5 to 9-Year-Old Children: A Randomized Controlled Trial.
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GANDHI, Zeel and NAGARAJ GOWDA, Subhadra Halemane
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MANDIBULAR nerve ,CHI-squared test ,NERVE block ,FEAR of dentists ,ORAL drug administration ,ORAL medication ,PULPOTOMY - Abstract
Objective: Childhood experiences of pain associated with dental treatment can induce dental anxiety. Inferior alveolar nerve blocks are eight times more likely to fail in patients with irreversible pulpitis. The objective was to compare the effectiveness of lignocaine with and without pre-operative oral ibuprofen for controlling pain in primary mandibular molars scheduled for pulpectomy procedures in 5 to 9-year-old children. Methods: One hundred and twenty-two children diagnosed with irreversible pulpitis in mandibular posterior teeth and scheduled for pulpectomy procedures were included. The children were assigned to one of the two groups, Treatment group A: Pre-operative with oral ibuprofen and local anaesthesia with 2% lignocaine (with adrenaline 1:80000); Treatment group B: Pre-operative with oral placebo and local anaesthesia with 2% lignocaine (with 1:80000 adrenaline). Pain and pulse rate were recorded at baseline, one hour after administration of oral medication, fifteen minutes following administration of Inferior Alveolar Nerve Block (IANB), and also during the course pulpectomy. The results were statistically analysed using chi square test and repeated measures analysis of variance (ANOVA). Results: In treatment group A, 90.16% children had IANB success compared to 9.83% in group B.. The difference in the success rate between two groups was statistically significant (p<0.001) with an odds ratio of 84. Conclusion: Oral medication with ibuprofen is effective in increasing the success rate of IANB with lignocaine for the treatment of irreversible pulpitis of 5 to 9-year-old children. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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20. Advances in Regenerative Dentistry: A Systematic Review of Harnessing Wnt/β-Catenin in Dentin-Pulp Regeneration.
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Amir, Mariam, Jeevithan, Lakshmi, Barkat, Maham, Fatima, Syeda Habib, Khan, Malalai, Israr, Sara, Naseer, Fatima, Fayyaz, Sarmad, Elango, Jeevithan, Wu, Wenhui, Maté Sánchez de Val, José Eduardo, and Rahman, Saeed Ur
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ROOT canal treatment , *DENTITION , *CELL receptors , *ADULT development , *HOMEOSTASIS , *WNT signal transduction - Abstract
Dentin pulp has a complex function as a major unit in maintaining the vitality of teeth. In this sense, the Wnt/β-Catenin pathway has a vital part in tooth development, maintenance, repair, and regeneration by controlling physiological activities such as growth, differentiation, and migration. This pathway consists of a network of proteins, such as Wnt signaling molecules, which interact with receptors of targeted cells and play a role in development and adult tissue homeostasis. The Wnt signals are specific spatiotemporally, suggesting its intricate mechanism in development, regulation, repair, and regeneration by the formation of tertiary dentin. This review provides an overview of the recent advances in the Wnt/β-Catenin signaling pathway in dentin and pulp regeneration, how different proteins, molecules, and ligands influence this pathway, either upregulating or silencing it, and how it may be used in the future for clinical dentistry, in vital pulp therapy as an effective treatment for dental caries, as an alternative approach for root canal therapy, and to provide a path for therapeutic and regenerative dentistry. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
21. Evaluating the Susceptibility of Different Crops to Smoke Taint.
- Author
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Culbert, Julie, Ristic, Renata, and Wilkinson, Kerry
- Subjects
FRUIT skins ,PHENOL ,PHENOLS ,POTTED plants ,HOPS ,LAVENDERS ,GRAPES ,BANANAS ,APPLE cider - Abstract
The potential for grapes and wine to be tainted following vineyard exposure to wildfire smoke is well established, with recent studies suggesting hops and apples (and thus beer and cider) can be similarly affected. However, the susceptibility of other crops to 'smoke taint' has not yet been investigated. Smoke was applied to a selection of fruits and vegetables, as well as potted lavender plants, and their volatile phenol composition determined by gas chromatography–mass spectrometry to evaluate their susceptibility to contamination by smoke. Volatile phenols were observed in control (unsmoked) capsicum, cherry, lavender, lemon, spinach and tomato samples, typically at ≤18 µg/kg, but 52 µg/kg of guaiacol and 83–416 µg/kg of o- and m-cresol and 4-methylsyringol were detected in tomato and lavender samples, respectively. However, significant increases in volatile phenol concentrations were observed as a consequence of smoke exposure; with the highest volatile phenol levels occurring in smoke-exposed strawberry and lavender samples. Variation in the uptake of volatile phenols by different crops was attributed to differences in their physical properties, i.e., their surface area, texture and/or cuticle composition, while the peel of banana, lemon, and to a lesser extent apple samples, mitigated the permeation of smoke-derived volatile phenols into pulp. Results provide valuable insight into the susceptibility of different crops to smoke contamination. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
22. Biological effect of modern bioactive materials used in direct and indirect capping; in vitro study.
- Author
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Gheorghiu, Irina Maria, Iliescu, Alexandru Andrei, Popescu, George Alexandru Denis, Paunica, Stana, and Dumitriu, Anca Silvia
- Subjects
CYTOTOXINS ,DENTAL pulp capping ,OPERATIVE dentistry ,CELL culture ,MINERAL aggregates - Abstract
Objective. In this study, the biological effect of MTA Repair HP (Mineral Trioxide Aggregate Repair High Plasticity) and Biodentine have been tested on a stabilized fibroblast cell line NCTC clone 929. Materials and Methods. We assessed quantitative and qualitative parameters related to cytotoxic effect of the investigated products. The experimental period was 96 hours. Statistical analysis was performed with Kruskal-Wallis and Wilcoxon tests. Results. The detached cells test showed no statistically significant difference on cell culture for Biodentine and MTA Repair HP, while for the cellular density assay we found the same biological effect on the tested fibroblasts in the first 24 and 48 hours, but a significant different cellular response for the investigated pulp capping materials for the next 48 hours of the experiment. Conclusions. The results demonstrated that the materials presented a very low level of cytotoxicity. Biodentine showed in all parameters better biological effects than MTA Repair HP, expressed by lower and limited cellular damage and a higher cell density. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
23. Elucidating epigenetic mechanisms governing odontogenic differentiation in dental pulp stem cells: an in-depth exploration.
- Author
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Lei Huang, Xuan Chen, Xiaoxia Yang, Yinchun Zhang, Yiyun Liang, and Xiaoling Qiu
- Subjects
DENTAL pulp ,STEM cells ,EPIGENETICS ,NUCLEOTIDE sequence ,HISTONE methylation - Abstract
Epigenetics refers to the mechanisms such as DNA methylation and histone modification that influence gene expression without altering the DNA sequence. These epigenetic modifications can regulate gene transcription, splicing, and stability, thereby impacting cell differentiation, development, and disease occurrence. The formation of dentin is intrinsically linked to the odontogenic differentiation of dental pulp stem cells (DPSCs), which are recognized as the optimal cell source for dentin-pulp regeneration due to their varied odontogenic potential, strong proliferative and angiogenic characteristics, and ready accessibility Numerous studies have demonstrated the critical role of epigenetic regulation in DPSCs differentiation into specific cell types. This review thus provides a comprehensive review of the mechanisms by which epigenetic regulation controls the odontogenesis fate of DPSCs. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
24. Phytochemical, antioxidant, and nutritional evaluation of kernel and pulp of Bush mango (Irvingia gabonesis).
- Author
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Alabi, Mujidat Adeola, Aremu, Matthew Olaleke, and Akpomie, Timothy Marhiere
- Subjects
- *
ESSENTIAL amino acids , *AMINO acids , *G proteins , *CARBOHYDRATES , *MANGO - Abstract
Background and objectives: In many African countries, especially Nigeria, the fight against malnutrition and undernourishment continues to be a primary goal of development. In this regard, various strategies including the consumption of plants and vegetables are being applied. The kernel of Bush mango, which is widely consumed in Nigeria, has been broadly investigated in the literatures, while there is little information about the nutritional composition of the pulp. This study examined the nutritional composition of both kernel and pulp of the Irvingia gabonesis. Materials and methods: The Bush mango (Irvingia gabonensis) fruits were purchased from Ogbadibo, local government of Benue state, Nigeria, followed by sorting and washing to remove any dirt. The pulp was separated from the kernel, sun-dried for seven days, and oven-dried at 350 °C for 1 h to eliminate the moisture. The dried samples were milled separately with an electric food blender, and packed in a separate clean polythene bag before analysis. The phytochemicals, antioxidants, proximate composition, and amino acids were determined in the samples according to the standard analytical techniques. Results and conclusion: Amounts of saponins, alkaloids, flavonoids, tannins, cyanide, and phytate were higher in the kernel, while oxalate and total phenols were higher in the pulp. The results of antioxidants composition revealed that carotenoids were the highest antioxidant in the kernel (4.12 g/100 g) and pulp (1.73 g/100 g) of Irvingia gabonesis fruit. Study of proximate composition revealed that carbohydrate was the most abundant macronutrient in the kernel (56.96 %) and pulp (61.02 %) of Bush mango. Fatty acids and energy were accounted as 19.19% and 1977.16 kJ/100 g of the kernel, and 16.29% and 1855.80 kJ/100 g of the pulp. Amino acid profile of the samples revealed that leucine (5.49 and 3.52 g/100 g of crude protein of kernel and pulp, respectively) and tryptophan (0.58 and 0.39 g/100 g of crude protein of kernel and pulp, respectively) were the most abundant and the lowest concentrated essential amino acids. In conclusion, the pulp and kernel of Bush mango contained low concentrations of anti-nutrients, and were found to be a good source of fat, carbohydrates, and antioxidants. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
25. Preparation and characterization of physical properties of molded pulp from empty fruit bunches of oil palm.
- Author
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LUBIS, ROSLIANA, RIYANTO, and SAISA
- Subjects
- *
OIL palm , *MOLDED pulp products , *ROUGH surfaces , *SURFACE morphology , *HYDROLYSIS - Abstract
This research aims to determine the impact of pretreatment on empty fruit bunches (EFB) of palm oil fibers before the pulping process on the quality of the molded pulp produced. The study includes EFB fiber pretreatment processes, pulp production, pulp molding, physical characteristic analysis, and molded pulp performance evaluation. The pulp production process involves acid-base hydrolysis reactions. The produced molded pulp is done manually. Characterization of the molded pulp includes measurements of paper grammage, thickness, density, and moisture content. The characteristics of pulp produced from pretreated EFB fibers are as follows: an average grammage value of 415.48 g/m², paper thickness of 1.53 mm, water absorption capacity of 13.33-33.33%, density of paper of 0,026 x 106 - 0,027 x 106 g/m³, and a smooth surface morphology. Meanwhile, the characteristics of pulp produced from without pretreatment EFB fibers include an average grammage value of 372.18 g/m², paper thickness of 0.77 mm, water absorption capacity of 20.34-43.21%, density of paper of 0,004 x 106 - 0,008 x 106 g/m³, and a rough surface morphology due to pores on the fiber surface. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
26. Cellulose and lignin purified from Metroxylon sagu palm fronds by a new technology with 2-methylanthraquinone cooking and peroxymonosulfuric acid bleaching
- Author
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Evelyn, Yusnimar, Muhammad Iwan Fermi, Edy Saputra, Syelvia Putri Utami, Komalasari, Sri Wahdini Rahmi, and Hiroshi Ohi
- Subjects
Sago palm fronds ,Cellulose ,Lignin ,Prehydrolysis soda cooking ,2-Methylanthraquinone ,Pulp ,Forestry ,SD1-669.5 ,Building construction ,TH1-9745 - Abstract
Abstract The demand for high-purity cellulose, optimization of wood utilization, and environmentally friendly processes has increased in dissolving pulp (DP) production. Sago palm fronds (SPF), an abundant agricultural waste in Indonesia, hold great potential as a raw material for cellulose, hemicellulose, and lignin production. This study aimed to explore the production of from SPF by employing a combination of prehydrolysis, soda cooking with 2-methylanthraquinone (MAQ) as a green additive (PHS-MAQ), and totally chlorine-free (TCF) bleaching with peroxymonosulfuric acid (Psa). Furthermore, lignin was recovered from the black liquor of PHS-MAQ. The results showed that prehydrolysis at 150 ºC for 3 h, followed by soda-MAQ cooking at 160 ºC for 1.5 h using 0.03% of MAQ, 23% active alkali (AA), and a five-stage bleaching with oxygen (O), Psa, alkaline extraction with hydrogen peroxide (Ep), Psa, and Ep successfully produced high-purity cellulose as DP, with properties of 94.3% α-cellulose content, 89.9% ISO brightness (SNI ISO 2470–1:2016), 9.1 cP viscosity, and 0.13% ash content. Moreover, the soda-MAQ cooking method exhibited superior delignification compared to prehydrolysis kraft (PHK) and prehydrolysis soda (PHS) processes in a range of kappa numbers of 9.4–22.6 at 17–25% AA. The inclusion of MAQ increased pulp yields by 4.6–4.9% and decreased kappa number by 1.6–3.1 compared to the PHS without additives at similar AA. Lignin was separated from the PHS-MAQ, with yields of 69–77%. This work demonstrated the suitability of SPF processed by PHS-MAQ cooking and Psa bleaching for the preparation of viscose rayon and cellulose derivatives. The lignin recovery could be an attractive biorefinery process in modern pulp mills.
- Published
- 2024
- Full Text
- View/download PDF
27. Tamarind (Tamarindus indica L.) Components as a Sustainable Replacement for Pork Meat in Frankfurter Sausages
- Author
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Rafael Sepúlveda F. Trevisan Passos, Camila Cristina A. de Sousa, Mauricio C. A. da Silva, Ana M. Herrero, Claudia Ruiz-Capillas, and Carlos Pasqualin Cavalheiro
- Subjects
meat products ,by-products ,pulp ,peel ,seed ,technological properties ,Chemical technology ,TP1-1185 - Abstract
Five types of frankfurters were formulated: a control without tamarind (T0) and four samples using 5% tamarind pulp paste (PT5), seeds (ST5), peel (CT5), and a blend of all of them (PSCT5), replacing the same portion of meat. The inclusion of tamarind components led to a reduction in the moisture and protein content of the reformulated frankfurters. In terms of mineral composition, CT5 showed the highest (p < 0.05) calcium content. Additionally, ST5 and CT5 treatments demonstrated the lowest processing loss values. The pH was lower in the PT5 treatment (p < 0.05). Incorporating tamarind components reduced the lightness (L*) of the frankfurters, resulting in darker sausages. However, ST5 exhibited greater redness (a*), while higher yellowness (b*) values were observed in PT5 and CT5 treatments (p < 0.05). Texture analysis revealed no differences (p > 0.05) in hardness and chewiness between T0 and PT5; however, ST5 exhibited the highest values for these parameters (p < 0.05). No variation in the conformational order of the lipid acyl chains due to the incorporation of tamarind compounds was observed related to physical entrapment of these compounds in the frankfurter matrix. Both T0 and PT5 were well accepted by consumers, and scores higher than 7 were observed for overall acceptability and purchase intention. The study demonstrated that incorporating tamarind components, especially pulp paste (PT), is a viable alternative for replacing lean pork meat in frankfurters, improving the sustainable aspects of frankfurter production.
- Published
- 2025
- Full Text
- View/download PDF
28. Proximate Composition and Phytochemical Analysis of Malaysian Liberica sp. Coffee Bean and Its Pulp.
- Author
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Ismail, Nurhuda Syahirah, Zaidan, Uswatun Hasanah, Shamsi, Suhaili, Abd Gani, Siti Salwa, and Nillian, Elexson
- Subjects
- *
COFFEE beans , *LIQUID chromatography-mass spectrometry , *NUTRITIONAL value , *WASTE management , *COFFEE manufacturing , *FAT , *XYLANASES - Abstract
Arabica, Robusta, and Liberica are the three main coffee species cultivated globally. Liberica coffee is a minor species, accounting for less than 1% of global cultivation. Due to favorable climatic conditions in Malaysia, Liberica coffee dominates coffee production, accounting for 73%, while Robusta makes up the remaining 27%. Nevertheless, the substantial coffee production resulted in approximately 15 million tons of discarded skin and pulp, contributing to environmental pollution. This study was conducted due to insufficient information and research on the proximate composition and phytochemical compounds of the coffee bean and pulp from Liberica sp. This study aims to determine the proximate composition of coffee beans and pulp extracts from Liberica sp. and to identify the phytochemical composition using liquid chromatography-mass spectrometry (LC-MS) analysis. The nutritional values of carbohydrates, protein, crude fiber, crude fat, and ash were obtained using proximate analysis. Coffee beans exhibited the highest value for crude protein (11.96%) and crude fiber (11.83%), whereas coffee pulp has the highest significant value for moisture content (68.81%) and ash (7.31%). LC-MS analysis shows emmotin A and deoxymiroestrol were the major phytochemical compounds. These findings contribute to understanding the nutritional value and phytochemical compounds of coffee beans and pulp from Liberica sp. that may contribute to sustainable waste management and other applications in the food and beverage industry. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
29. Pulp tissue dissolution capacities of different irrigation agitation techniques in artificial internal resorption cavities.
- Author
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Koç, Simay, Er, Kürşat, Hajguliyeva, Gulchin, Osmanlı, Ziya, Cabbarova, Lala, and Karayılmaz, Hüseyin
- Subjects
DENTAL pulp cavities ,ROOT resorption (Teeth) ,SODIUM hypochlorite ,INCISORS ,WEIGHT loss - Abstract
Purpose The aim of this in vitro study was to compare the organic tissue dissolution capacities of 3 different irrigation agitation techniques (IATs) in artificial internal root resorption cavities (IRCs). Materials and Methods Ninety freshly extracted maxillary human incisors were selected. After decoronation procedure, the roots were split longitudinally, and a standard IRC were prepared in the canals on each half of the roots. Then, the bovine pulp samples (~2,3 mg) were previously weighed and placed into the cavities. The root fragments were reassembled and cemented to create a circular IRC within the canal. Teeth samples were randomly divided into 6 groups (n=15); sodium chlorur (NaCl) and sonic irrigation (SI), sodium hypochlorite (NaOCl) and SI, NaCl and passive ultrasonic irrigation (PUI), NaOCl and PUI, NaCl and laser activated irrigation (LAI), NaOCl and LAI. After that, the teeth were decemented and the tissue samples inside the cavities were weighed again. The percentage of weight loss was calculated and statistically analyzed. Results SI has significantly more successful results than PUI and LAI in groups which the irrigant was NaCl. There was also a significant difference between LAI and PUI in groups which the irrigant was NaOCl (Group 6 Group 4, p=0.003). There was no significant difference between LAI and SI with NaOCl. Conclusion Complete dissolution of bovine pulp tissue from IRCs was not achieved by any tested techniques. However, the LAI with NaOCl was more effective than other IATs. In addition, there is no significant difference between the LAI and SI with NaOCl. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
30. A comparative analysis of red and white dragon fruit pulp and juice characteristics.
- Author
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Lande, V. K., Kshirsagar, R. B., Aralkar, S. S., Agarkar, A. S., Patil, B. M., and Suryawanshi, H. V.
- Subjects
PITAHAYAS ,PINK ,VITAMIN C ,FRUIT juices ,MAGNESIUM - Abstract
To ascertain their potential applications in the food industry, dragon fruit varieties, namely H. undatus and H. polyrhizus, were thoroughly analyzed for their physical, nutritional, and phytochemical properties. The focus was on pulp and juice, emphasizing color, mineral content, proximate analysis, and phytochemical constituents. Red flesh dragon fruit displayed a bright pink color, a slightly smaller length (9.1 cm), and a larger diameter (8.3 cm) compared to white flesh dragon fruit (9.9 cm length, 7.53 cm diameter). Red flesh dragon fruit also exhibited higher circumference and weight. White flesh dragon fruit demonstrated superior juice yield (36.23 %) compared to red flesh dragon fruit (35.28 %). Red flesh dragon fruit had higher levels of total sugar (8.45 %), protein (1.36 %), and ascorbic acid (19.83 mg/100g) in its pulp. It also showed elevated mineral content of calcium, magnesium, and phosphorus. Conversely, white flesh dragon fruit had higher fat content (0.65 %) and carbohydrate content (9.76 %) in its pulp. White flesh dragon fruit displayed brighter color characteristics with higher L*, a*, and b* values. Phytochemical analysis revealed the presence of betacyanin in red flesh dragon fruit (30.87 mg/100g) but not in white flesh dragon fruit. Red flesh dragon fruit exhibited significantly higher total phenolic content in pulp (49.67 mg GA/100g) and juice (41.25 mg GA/100g) than white flesh dragon fruit. These findings highlight substantial differences (P < 0.05) between red and white flesh dragon fruit in physical, nutritional, and phytochemical aspects, offering valuable insights for their incorporation into diverse food products, such as beverages and ice cream. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
31. Morphobiometric Characterisation of Carob Tree Pods Cultivated in Algeria and Evaluation of Physicochemical, Nutritional, and Sensory Properties of Their Powders.
- Author
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Toumi, Sanaa, Acem, Kamel, Abdelhamid, Djamel, Khedim, Kheira, Lagraa, Ikram, and Loumani, Zahira
- Subjects
- *
CAROB , *POWDERS , *FOOD chemistry , *FRUIT processing , *FOOD quality , *SWEETNESS (Taste) , *LOQUAT - Abstract
Given its very important economic and environmental interests, the cultivation of carob tree in Algeria has experienced remarkable development, which is reflected in the methods of plant multiplication, the increase in the surface area of its cultivation, and in particular, the growing number of carob fruit processing industries (first and second transformation). In this context, the present study focused on the evaluation of the food quality of whole pod powders and carob pulps from three different regions of Algeria (Boumerdes, Relizane, and Tissemsilt). The experimental part presents a morphobiometric characterisation of carob pods carried out during the 2020–2021 production campaign — length, width, mass, volume, thickness, size index (length/width), the number and mass of seeds, analysis of the food quality of carob powders from whole pods and their pulps and determining their physicochemical properties (particle size, pH and dry matter), nutritional properties (ash, crude proteins, total sugars, crude fibres, fats) and sensory (colour, taste, texture, and smell). The results showed that the morphobiometric characteristics of the carob pods studied (physicochemical, nutritional, and sensory properties of the powders) strongly depend on the biogeographical site of the carob tree and the conditions of its production. Compared to the other carob fruit powders analysed, Relizane carob pulps powder showed a better sensory appreciation; this powder was characterised by a colour (100% light brown), taste (50% sweet, 50% very sweet), texture (100% fine), and odour (100% carob with strong intensity). Indeed, the study of the food quality of the two types of powders obtained separately from whole pods (seeds and pulps) and from the pulps is very valuable and opens possible ways of food valorisation of carob tree fruit. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
32. ControlPULP: A RISC-V On-Chip Parallel Power Controller for Many-Core HPC Processors with FPGA-Based Hardware-In-The-Loop Power and Thermal Emulation.
- Author
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Ottaviano, Alessandro, Balas, Robert, Bambini, Giovanni, Del Vecchio, Antonio, Ciani, Maicol, Rossi, Davide, Benini, Luca, and Bartolini, Andrea
- Subjects
- *
REACTIVE power control , *CYBER physical systems , *MICROCONTROLLERS , *EMULATION software - Abstract
High-performance computing (HPC) processors are nowadays integrated cyber-physical systems demanding complex and high-bandwidth closed-loop power and thermal control strategies. To efficiently satisfy real-time multi-input multi-output (MIMO) optimal power requirements, high-end processors integrate an on-die power controller system (PCS). While traditional PCSs are based on a simple microcontroller (MCU)-class core, more scalable and flexible PCS architectures are required to support advanced MIMO control algorithms for managing the ever-increasing number of cores, power states, and process, voltage, and temperature variability. This paper presents ControlPULP, an open-source, HW/SW RISC-V parallel PCS platform consisting of a single-core MCU with fast interrupt handling coupled with a scalable multi-core programmable cluster accelerator and a specialized DMA engine for the parallel acceleration of real-time power management policies. ControlPULP relies on FreeRTOS to schedule a reactive power control firmware (PCF) application layer. We demonstrate ControlPULP in a power management use-case targeting a next-generation 72-core HPC processor. We first show that the multi-core cluster accelerates the PCF, achieving 4.9x speedup compared to single-core execution, enabling more advanced power management algorithms within the control hyper-period at a shallow area overhead, about 0.1% the area of a modern HPC CPU die. We then assess the PCS and PCF by designing an FPGA-based, closed-loop emulation framework that leverages the heterogeneous SoCs paradigm, achieving DVFS tracking with a mean deviation within 3% the plant's thermal design power (TDP) against a software-equivalent model-in-the-loop approach. Finally, we show that the proposed PCF compares favorably with an industry-grade control algorithm under computational-intensive workloads. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
33. Unveiling the Potential of Apricot Residues: From Nutraceuticals to Bioenergy.
- Author
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Makrygiannis, Ioannis, Athanasiadis, Vassilis, Chatzimitakos, Theodoros, Mantiniotou, Martha, Bozinou, Eleni, and Lalas, Stavros I.
- Subjects
APRICOT ,FUNCTIONAL foods ,BIOMASS energy ,PHENOLS ,STONE fruit - Abstract
Stone fruits, such as the apricot (Prunus armeniaca L.), are frequently consumed. As such, a substantial volume of apricot waste is generated at each stage of the food supply chain, including harvesting, processing, packaging, warehousing, transportation, retailing, and eventual consumption. This generates tons of waste annually on a global scale. The significant amounts of phenolics present in these wastes are primarily responsible for their antioxidant capacity and the subsequent health advantages they provide. As such, apricot pulp by-products could be a valuable reservoir of bioactive compounds, such as tocopherols, polyphenolic compounds, proteins, dietary fibers, etc. Moreover, apricot kernels are also recognized for their abundance of bioactive compounds, including polyphenols and tocopherols, which find utility in diverse sectors including cosmetology and the food industry. Both conventional and green methods are employed, and generally, green methods lead to higher extraction efficiency. The antimicrobial properties of apricot kernel essential oil have been widely recognized, leading to its extensive historical usage in the treatment of diverse ailments. In addition, apricot kernel oil possesses the capacity to serve as a viable resource for renewable fuels and chemicals. This review examines the potential of apricot waste as a source of bioactive compounds, as well as its utilization in diverse applications, with an emphasis on its contribution to health improvement. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
34. Synthetic Proteins in Dental Applications.
- Author
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Lopez-Ayuso, Christian Andrea, Aranda-Herrera, Benjamin, Guzman-Rocha, Dulce, Chavez-Granados, Patricia Alejandra, and Garcia-Contreras, Rene
- Subjects
BIOTECHNOLOGY ,ARTIFICIAL intelligence ,DENTISTRY ,BIOMIMETICS ,STREPTOCOCCUS mutans - Abstract
Biotechnology and artificial intelligence have sparked a revolution in dentistry, with a focus on restoring natural tissue functions. This transformation has given rise to bioactive materials, inspired by biomimetics, aimed at replicating the processes found in nature. As synthetic biology advances, there is a heightened focus on signaling systems crucial for bio-based diagnostics and therapeutics. Dentistry now harnesses synthetic proteins for tissue regeneration and dental material enhancement. A current research priority is bacterial biofilm inhibition, vital for dental health. Given the role of Streptococcus mutans in dental caries, the development of synthetic antimicrobial peptides targeting this bacterium is underway. The balance of dental enamel between demineralization and remineralization impacts caries formation. Factors such as the presence of hydroxyapatite and salivary peptides influence enamel health. Recent studies have spotlighted salivary protein-inspired peptides for enhanced remineralization. In the realm of bone regeneration, synthetic proteins like bone morphogenetic proteins (BMP) have been spotlighted, earning FDA approval. Research is currently delving into peptides such as cementum protein 1 peptide (CEMP-1-p1) and parathyroid hormone variants like PTH (1-34), underscoring their potential in advancing dental and bone health. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
35. Restoring Vitality: The Science and Practice of Pulp Revascularization in Endodontics
- Author
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Krishna P. Biswas, Dhaval Desai, K Vikram Shetty, Delphia Thomas, Aditi Gupta, Sachin Shashikant Metkari, and Rashmi Laddha
- Subjects
pulp ,open apex ,revascularization ,Pharmacy and materia medica ,RS1-441 ,Analytical chemistry ,QD71-142 - Abstract
Pulp revascularization is an emerging treatment modality in endodontics aimed at preserving the vitality and function of immature permanent teeth with necrotic pulp and apical periodontitis. This review provides a comprehensive examination of the current state of pulp revascularization, encompassing its rationale, clinical procedures, indications, contraindications, advantages, limitations, and potential future prospects. By critically analyzing the existing literature and clinical experiences, this review aims to offer insights into the efficacy, challenges, and potential advancements in the field of pulp revascularization.
- Published
- 2024
- Full Text
- View/download PDF
36. Iron deficiency anemia as a risk factor for pulp disease in children from the central Peruvian jungle: a case‒control study
- Author
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Jhair Alexander LEON-RODRIGUEZ, María ESPINOZA-SALCEDO, Yovana Melisza GUTIERREZ-POLANCO, Jherson David LEON-RODRIGUEZ, Araceli Antonella LOPEZ-TISNADO, and Omaly Sulay RIVERA-CRUZ
- Subjects
Anemia ,Case-control studies ,Iron deficiency ,Pulp ,Dentistry ,RK1-715 - Abstract
Abstract Aim To investigate iron-deficiency anemia as a risk factor for dental pulp disease in children from the central Peruvian jungle. Methodology A case-control study was carried out with 270 children, of which 90 referred to cases and 180, to controls. Patients with pulp disease were diagnosed according to the criteria of the Association of Endodontists and the American Board of Endodontics. A specific questionnaire was used to assess ferrous sulfate consumption, maternal education level, maternal age, occupation, and household income. Data were analyzed using Pearson’s correlation coefficient and a binary logistic regression. Results Iron deficiency anemia offers a risk factor for pulp disease in children (OR 7.44, IC 95% 4.0-13.8). According to multivariate analysis using binary logistic regression, ferrous sulfate consumption (OR 13.8, IC 95% 5.6.33.9), maternal education level (OR 2.4, IC 95% 1.1-5.3), maternal age (OR 7.5, IC 95% 2.9-19.4), household income (OR 4.0, IC 95% 1.6-9.6), and caries (OR 10.7, IC 95% 4.5-25.7) configured independent factors that were statistically associated with pulp disease. Conclusion Iron deficiency anemia, ferrous sulfate consumption, maternal education level, maternal age, household income, and dental caries were positively associated with pulp disease in children
- Published
- 2024
- Full Text
- View/download PDF
37. Unveiling the Potential of Apricot Residues: From Nutraceuticals to Bioenergy
- Author
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Ioannis Makrygiannis, Vassilis Athanasiadis, Theodoros Chatzimitakos, Martha Mantiniotou, Eleni Bozinou, and Stavros I. Lalas
- Subjects
Prunus armeniaca ,pulp ,kernel ,stone fruit ,kernel oil ,biofuel ,Municipal refuse. Solid wastes ,TD783-812.5 - Abstract
Stone fruits, such as the apricot (Prunus armeniaca L.), are frequently consumed. As such, a substantial volume of apricot waste is generated at each stage of the food supply chain, including harvesting, processing, packaging, warehousing, transportation, retailing, and eventual consumption. This generates tons of waste annually on a global scale. The significant amounts of phenolics present in these wastes are primarily responsible for their antioxidant capacity and the subsequent health advantages they provide. As such, apricot pulp by-products could be a valuable reservoir of bioactive compounds, such as tocopherols, polyphenolic compounds, proteins, dietary fibers, etc. Moreover, apricot kernels are also recognized for their abundance of bioactive compounds, including polyphenols and tocopherols, which find utility in diverse sectors including cosmetology and the food industry. Both conventional and green methods are employed, and generally, green methods lead to higher extraction efficiency. The antimicrobial properties of apricot kernel essential oil have been widely recognized, leading to its extensive historical usage in the treatment of diverse ailments. In addition, apricot kernel oil possesses the capacity to serve as a viable resource for renewable fuels and chemicals. This review examines the potential of apricot waste as a source of bioactive compounds, as well as its utilization in diverse applications, with an emphasis on its contribution to health improvement.
- Published
- 2024
- Full Text
- View/download PDF
38. Fruiting and Productivity of the Argan (Argania spinosa) Tree and Evaluation of the Nutritional Value of Its Early and Late Fruits from Western Algeria
- Author
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Zohra Benaouf, Reda Kechairi, Oussama Djorf, and Mohamed Larbi Kies
- Subjects
Argan tree ,flowering ,fruit ,pulp ,almond ,argan oil ,Plant culture ,SB1-1110 - Abstract
ABSTRACTThe Argan tree (Argania spinosa (L.) (Skeels)) is a woody species endemic to Algeria (Tindouf region mostly) and Morocco. It is a plant species of oleo-agro-sylvo-pastoral and ecological importance as it contributes to the fight against desertification and climate change. Moreover, the seed is used for extracting oil, which has high dietic and cosmetic qualities. In this work, the fruit harvest period and Argania spinosa productivity are related to the phenological process of flowering and fruiting. Our results show that the experimental argan trees of Mostaganem bloom late to be pollinated in the spring and remain dormant throughout the summer, in contrast to the endemic Tindouf trees that bloom early in September, bear fruit and ripen in the same season. This explains why that the fruits of the Tindouf region are the richest compared to the fruits of the other two regions. Our study shows that the pulp always contains more than almonds, as the oil was extracted and analyzed, the pulp is the fraction richest in phenols, while almond is the poorest fraction (3.43 ± 0.72 mg/g, 1.34 ± 0.03 mg/g), the same thing goes for the total flavonoid content (9 ± 0.5 mg/g, 2.83 ± 0.14 mg/g). The greatest activity was recorded in the fruits of Tindouf. As for the components of the fruit, the highest activity was recorded in the pulps then the almonds and the lowest in the oil (502 ± 11.42 g, 216 ± 8.43 g, 174 ± 3.61 g), respectively. Concerning primary metabolites, the fruit is rich (the almond is rich in proteins, the pulp is rich in sugar and the oil is rich in lipids).
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- 2023
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39. Development of Starter Inoculum for Controlled Arabica Coffee Fermentation Using Coffee By-Products (Pulp and Mucilage Broth), Yeast, and Lactic Acid Bacteria
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Anna María Polanía Rivera, Jhennifer López Silva, Laura Sofía Torres-Valenzuela, and José Luis Plaza Dorado
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coffee ,pulp ,mucilage ,fermentation ,yeast ,lactic acid bacteria ,Fermentation industries. Beverages. Alcohol ,TP500-660 - Abstract
Recent research has highlighted the effectiveness of starter inocula in fermentation processes. In this sense, this study examines the use of an inoculum composed of coffee pulp, mucilage broth, and microorganisms such as Saccharomyces cerevisiae, L. delbrueckii ssp. bulgaricus, and S. thermophilus in fermenting Castillo variety coffee. An inoculum was prepared, measuring variables such as the pH, acidity, °Brix, lactic acid bacteria, and yeast viability. Following optimization, the inoculum was evaluated in a fermentation process, evaluating the pH, °Brix, acidity, microbiological analysis, ochratoxin A, and cup quality post-drying and roasting. The findings demonstrated a significant reduction in the pH from 4.47 to 4.05 and in the °Brix from 15.8 to 8.45, indicating efficient organic acid production and sugar degradation. Acidity levels increased from 20.02 mg/g to 42.69 mg/g, while microbial viabilities remained above 107 CFUs/g, suggesting effective biomass production. The process effectively reduced the microbial load without detecting ochratoxin A. Sensory evaluations confirmed the enhanced cup quality, validating the positive impact of inoculum use in coffee fermentation. The results support the use of coffee pulp and mucilage broth as effective substrates for the growth of the evaluated microorganisms, and the application of starter cultures containing lactic acid bacteria and yeast can elevate the coffee to a specialty grade.
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- 2024
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40. Identification and Mining of Functional Components of Polyphenols in Fruits of Malus Germplasm Resources Based on Multivariate Analysis
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Dajiang Wang, Guangyi Wang, Xiang Lu, Zhao Liu, Simiao Sun, Hanxin Guo, Wen Tian, Zichen Li, Lin Wang, Lianwen Li, Yuan Gao, and Kun Wang
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Malus sieversii ,fruits ,polyphenol ,peel ,pulp ,multivariate analysis ,Chemical technology ,TP1-1185 - Abstract
Polyphenols are important functional components that have anti-cancer and anti-inflammatory effects. Apple fruit is rich in polyphenols and is one of the dietary sources of polyphenols. The polyphenol components and contents of the peel and pulp of 74 Malus sieversii (Led.) Roem. and 26 Chinese Malus germplasm resources were determined using ultra-high-phase chromatography (UPLC) and liquid chromatography–mass spectrometry (LC–MS). The results showed that 34 components were detected in the peel and 30 in the flesh, and that the polyphenol components and contents of the different germplasm resources were significantly different; the polyphenol content of Malus sieversii (Led.) Roem. was significantly higher than that of the other local varieties, and the polyphenol content in the peel was also higher than that in the flesh. Rutin, quercetin 3-O-arabopyranoside, kaempferol 3-O-rutinoside, and peonidin 3-O-galactoside were detected only in the peel. The total polyphenol content in the peel ranged from 949.76 to 5840.06 mg/kg, and the polyphenol content in the pulp ranged from 367.31 to 5123.10 mg/kg. The cluster analysis of polyphenol components and contents in peel and pulp showed that 100 Malus germplasm resources could be grouped into four categories. Principal component analysis of 34 kinds and 30 kinds of polyphenols in peel and pulp of 100 resources was performed. If the eigenvalue is greater than 1, eight and seven principal components are extracted, respectively. Five Malus resources with high polyphenol content in the peel and pulp were selected: ‘XY-77’ (peel: 5840.06 mg/kg, pulp: 5123.10 mg/kg; ‘LF-09’ (peel: 4692.63 mg/kg, pulp: 3729.79 mg/kg); ‘2012-5’ (peel: 4377.61 mg/kg, pulp: 3847.54 mg/kg); ‘29028’ (peel: 5088.05 mg/kg, pulp: 3994.61 mg/kg); and ‘11-01’ (peel: 5154.45 mg/kg, pulp: 3616.15 mg/kg). These results provide us with information regarding the polyphenol composition and content of the wild apple resources and local cultivars. The high polyphenol content resources obtained by screening can be used as raw materials for the extraction of polyphenol components and functional fruit juice processing and can also be used as parents for functional fruit creation and variety breeding.
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- 2024
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41. Restoring Vitality: The Science and Practice of Pulp Revascularization in Endodontics.
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Biswas, Krishna P., Desai, Dhaval, K., Vikram Shetty, Thomas, Delphia, Gupta, Aditi, Metkari, Sachin Shashikant, and Laddha, Rashmi
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PERIAPICAL periodontitis ,DENTAL pulp ,ENDODONTICS ,CONTRAINDICATIONS ,LITERATURE - Abstract
Pulp revascularization is an emerging treatment modality in endodontics aimed at preserving the vitality and function of immature permanent teeth with necrotic pulp and apical periodontitis. This review provides a comprehensive examination of the current state of pulp revascularization, encompassing its rationale, clinical procedures, indications, contraindications, advantages, limitations, and potential future prospects. By critically analyzing the existing literature and clinical experiences, this review aims to offer insights into the efficacy, challenges, and potential advancements in the field of pulp revascularization. [ABSTRACT FROM AUTHOR]
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- 2024
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42. Prolyl-hydroxylase inhibitor-induced regeneration of alveolar bone and soft tissue in a mouse model of periodontitis through metabolic reprogramming.
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Zebrowitz, Elan, Aslanukov, Azamat, Kajikawa, Tetsuhiro, Bedelbaeva, Kamila, Bollinger, Sam, Zhang, Yong, Sarfatti, David, Cheng, Jing, Hajishengallis, George, Heber-Katz, Ellen, and Messersmith, Phillip
- Subjects
1 ,4-DPCA ,Alveolar Bone ,Gapdh ,Glut-1 ,HIF-1α ,Ldh-a: Micro-CT ,Mice ,OCT3/4 ,PHDi ,Pdk1 ,Periodontal Disease ,Periodontal Ligament ,Pgk1 ,Pulp - Abstract
Bone injuries and fractures reliably heal through a process of regeneration with restoration to original structure and function when the gap between adjacent sides of a fracture site is small. However, when there is significant volumetric loss of bone, bone regeneration usually does not occur. In the present studies, we explore a particular case of volumetric bone loss in a mouse model of human periodontal disease (PD) in which alveolar bone surrounding teeth is permanently lost and not replaced. This model employs the placement a ligature around the upper second molar for 10 days leading to inflammation and bone breakdown and faithfully replicates the bacterially-induced inflammatory etiology of human PD to induce bone degeneration. After ligature removal, mice are treated with a timed-release formulation of a small molecule inhibitor of prolylhydroxylases (PHDi; 1,4-DPCA) previously shown to induce epimorphic regeneration of soft tissue in non-regenerating mice. This PHDi induces high expression of HIF-1α and is able to shift the metabolic state from OXPHOS to aerobic glycolysis, an energetic state used by stem cells and embryonic tissue. This regenerative response was completely blocked by siHIF1a. In these studies, we show that timed-release 1,4-DPCA rapidly and completely restores PD-affected bone and soft tissue with normal anatomic fidelity and with increased stem cell markers due to site-specific stem cell migration and/or de-differentiation of local tissue, periodontal ligament (PDL) cell proliferation, and increased vascularization. In-vitro studies using gingival tissue show that 1,4-DPCA indeed induces de-differentiation and the expression of stem cell markers but does not exclude the role of migrating stem cells. Evidence of metabolic reprogramming is seen by the expression of not only HIF-1a, its gene targets, and resultant de-differentiation markers, but also the metabolic genes Glut-1, Gapdh, Pdk1, Pgk1 and Ldh-a in jaw periodontal tissue.
- Published
- 2022
43. Evaluation of Structure and Compressive Properties of Eco-friendly Cushioning Materials Based on Starch and Cellulose Types
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Hae Min Jo, Soo Hyun Lee, and Ji Young Lee
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cushioning material ,starch ,amylopectin ,microfibrillated cellulose ,pulp ,loose-fill ,Biotechnology ,TP248.13-248.65 - Abstract
A reinforced eco-friendly cushioning material (ECM) comprising starch and cellulose material was developed. The ECM was prepared based on the starch type and cellulose material content; it was compared with commercial CMs. Different sizes of refined pulp (RP) and microfibrillated cellulose (MFC) were manufactured from hardwood bleached kraft pulp via beating and grinding, respectively. Thereafter, amylose-containing corn starch (CS) or amylopectin-only-containing glutinous rice starch (GS) was mixed with the manufactured cellulose materials. A slurry comprising starch and cellulose materials was homogenized for 2 min and lyophilized to prepare the ECM, after which the structure and strength characteristics of the prepared ECM were evaluated. The GS-prepared ECM produced a plate-like internal structure because of its amylopectin content, and amylose-containing CS exhibited a net-like shape. The cellulose materials offered support between starches with plate-like or net structure ECMs, and the pore shape was formed by adding MFC. As the cellulose material content increased, the strength of the ECM increased compared with that of the commercial CMs. Thus, ECMs with higher strength than their commercial counterparts could be manufactured with GS and cellulose materials.
- Published
- 2023
44. The Ada Beater: Improving the Quality of Handmade Paper in Ghana
- Author
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Michael Adashie, George Kushiator, and Bertha Ayim
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beater ,fibrillation ,flocculate ,roller ,blades ,maceration ,pulp ,Social Sciences - Abstract
Handmade paper has been around for centuries. In Asia, Europe, and other parts of the world, the means of creating handmade paper depend largely on traditional equipment and other industrial machines. In Ghana, the means of creating handmade paper is through a tedious process of hand beating the bast fiber of the Kyenkyen tree. This resulted in the production of a proto-paper known as the bark cloth. This traditional method has almost become extinct with the influx of imported industrial papers. Therefore the purpose of this study was to seek a solution to this problem through the possible design and fabrication of a paper pulp-making machine daubed the Ada Beater. Thus getting vital tools for making art, print, and papermaking. The paper explored practice-based research methodology to fabricate a papermaking machine known as the Ada Beater. The results showed that the machine can be fabricated and made to produce improved papers of archival quality derived from various plant sources in Ghana. It is recommended that this homegrown know-how should be made available to artists and art teachers for the teaching and use of handmade paper for artistic purposes.
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- 2023
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45. Productivity potential of maize hybrids developed at the P.P. Lukyanenko National Grain Center for deep grain processing
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V. G. Goldshtein, A. I. Suprunov, P. M. Bogdan, V. V. Sherstobitov, V. I. Khoreva, L. P. Nosovskaya, L. V. Adikaeva, and E. B. Khatefov
- Subjects
maize starch ,amylopectin ,amylose ,gluten ,germ ,pulp ,extractives ,Biotechnology ,TP248.13-248.65 ,Botany ,QK1-989 - Abstract
Background. The technology of deep grain processing is based on the use of operations that ensure separation of raw materials into various components and sequential processing of these components into products of high consumer value. The annual volume of deep grain processing products is over 100 million tons. Starch, as the most valuable component of processed grain, is used in the food industry, pharmacy, and in significant amounts for technical purposes. Studying the potential of domestic maize hybrids to provide raw materials for deep grain processing enterprises is a relevant task.Materials and methods. The material for field and laboratory studies included 17 commercial maize hybrids developed at the P.P. Lukyanenko National Grain Center. The content of starch, protein and oil in grain was measured with infrared spectroscopy on an Infratec 1241 Grain Analyzer. Actual extraction of native starch was implemented using the “plant-on-the-table” method developed at the All-Russian Research Institute of Starch Products, and breeding trials of maize hybrids were carried out in the steppe zone of Kabardino-Balkaria in 2020/2021.Results. As a result of the research, 13 hybrids with a mass fraction of starch in the range of 70.0–73.2% DM were identified: KR210MV, KR270MV, KR377AMV, KR385MV, KR415MV, ROSS198MV, KR433MV, KR514MV, KR575MV, LYUDMILA, ROSS190MV, and ROSS195MV. Of these, the grain yield in the range of 10–14 t/ha was shown by the hybrids KR270MV, KR315MV, KR377AMV, KR415MV, KR514MV, and KR575MV. In accordance with the results obtained, a number of hybrids can be recommended as source material for breeding and promising raw material for deep grain processing: KR415MV, KR393MV, and ROSS198MV, yielding 90.0–94.4% DW of starch when processed, and KR315MV, with a mass fraction of amylose in starch up to 38.6% DW.
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- 2023
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46. Efficiency Assessment of Cyanide Adsorption Using Zeolite Modified with Cationic Surfactant from Gold Mine Tailings
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Mehdi Soleymani Gharegol, Kazem Badv, and Behzad Nemati Akhgar
- Subjects
adsorption isotherm ,clinoptilolite ,column test ,pulp ,Environmental sciences ,GE1-350 ,Water supply for domestic and industrial purposes ,TD201-500 - Abstract
The aim of this study was to evaluate the surface modification efficiency of raw zeolite by hexadecyl trimethylammonium cationic surfactant for cyanide sorption. Properties such as mineralogy, morphology and elemental composition of sorbents were determined. Batch and column tests were performed to evaluate the sorption efficiency of raw and modified zeolite from solution and released from the cyanide polluted pulp. The presence of clinoptilolite mineral and surfactant surface coating due to modification using surfactant was confirmed by X-ray diffraction analysis and electron microscopy images. The results of isotherm experiment showed that modification of zeolite with surfactant increased the adsorption capacity of cyanide by zeolite 7 times compared to the raw sample and the maximum adsorption capacity of cyanide by modified zeolite was 3.97 mg/g. The ability of surfactant-modified zeolite to sorb more cyanide than raw zeolite was confirmed by the results of the column test on the cyanide released from the pulp. It was observed that with increasing time, the concentration of cyanide in the outlet solution increases, but this increase in the cyanide concentration in the outlet solution of the column containing the modified zeolite is less than the raw zeolite.
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- 2023
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47. Editorial: Molecular pathways and novel therapeutic targets in regenerative dentistry
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Bruno Cavalcanti, Waruna Lakmal Dissanayaka, and Yusuke Takahashi
- Subjects
dentin ,pulp ,regenerative dentistry ,signaling pathway ,molecular pathway ,Dentistry ,RK1-715 - Published
- 2024
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48. Comparison of nutritional, bioactive potential and antioxidant properties of Saba senegalensis fruit pulps from five regions of Burkina Faso
- Author
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Salamata Tiendrebeogo, Clarisse Sidbewendé Compaoré, Raymond Poussian Barry, Edwige Bahanla Oboulbiga, and Mamoudou Hama Dicko
- Subjects
Saba senegalensis ,pulp ,bioactive compounds ,antioxidant ,region “Mansfelder Land” ,Nutrition. Foods and food supply ,TX341-641 - Abstract
IntroductionThe fruit of Saba senegalensis plays an important role in household nutrition. It is an important source of sweet carbohydrates, minerals, vitamin C, provitamin A and has many biological properties. It is also of economical importance and employment for rural populations, through the processing of fruit. Unfortunately, the lack of exhaustive data on the composition and properties of the fruit and its derivatives limits processing and marketing. The species is widespread in different climatic zones.MethodsTherefore, its composition and biological properties may vary, offering a variety of processing products to meet the specific nutritional needs. This study aimed to characterize the bioactive potential and antioxidant properties of fruit pulps of S. senegalensis in order to increase its value-added processing. Pulp samples of fruits were sampled from five regions of Burkina Faso, namely the Cascades, Sud-Ouest, Boucle du Mouhoun, Nord and Centre-Sud regions.Results and DiscussionQualitative analysis showed the presence of alkaloids, saponins, terpenoids and steroids, anthocyanins and tannins. Quantitative analyses showed a significant variation in phenolics, tannins, lycopene, vitamin C, β-carotene and antioxidant activity among samples. However, this variation was not region-dependent. Indeed, some fruits from same region showed both the highest and lowest values for the assessed parameters. Fruits from regions of Centre-Sud and Sud-Ouest and displayed the highest and lowest levels of total phenolics (877.48 and 1142.33 mg GAE/100 g) and tannins (42.38 and 55.64 mg TAE/100 g), respectively. The high potential of S. senegalensis fruits pulp in nutritional and bioactive compounds, and antioxidant properties recorded in this study suggests that they can be used as a dietary supplement or in the formulation of energy foods and nutraceutical containing foods.
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- 2024
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49. Akebia fruit: A review on its extraction, phytochemicals, bioactivities and applications
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Yanhui Li, Zongqi Yang, Chengyong Jin, Ye Liu, Yu Zhang, Xin Ma, Wei Song, Rui Cai, Kewei Feng, Wanni Zhao, Yahong Yuan, Tianli Yue, and Qinglin Sheng
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akebia fruit ,pericarp ,phytochemical ,pulp ,seeds ,Food processing and manufacture ,TP368-456 ,Toxicology. Poisons ,RA1190-1270 - Abstract
Abstract Akebia fruit is a plant used for both medicinal and edible purposes. In recent years, due to the rich phytochemical composition with bioactive effects, Akebia fruit has attracted increasing attention on its composition analysis, active ingredients identification, and product applications. For example, the protein, sugar, amino acids, and vitamin C content of the pulp is higher than that of ordinary fruit. The seeds are not only processed into edible oil, it is also rich in protein and have the potential to be developed into a new resource with beneficial effects on human health. However, the research on the understanding of Akebia as a plant fruit is relatively lacking. In this review, an overview of Akebia fruit from food perspectives, including extraction methods and phytochemicals, bioactive functions, and various applications, were summarized. Finally, based on the current status and existing challenges, the prospect and future development direction of Akebia fruit were discussed.
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- 2024
- Full Text
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50. Artificial shading of teinturier grape Kolor clusters reveals light-responsive biomarkers: focus on flavonoid profiles and metabolism
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Huiqing Li, Xiaotong Gao, Yu Wang, Haocheng Lu, Mengbo Tian, Changqing Duan, and Jun Wang
- Subjects
microclimate ,anthocyanins ,flavonols ,skin ,pulp ,light ,Plant culture ,SB1-1110 - Abstract
Kolor is a teinturier grape cultivar, that accumulates flavonoids in the skin and pulp. However, the concentrations and proportions of flavonoids in Kolor skin and pulp differ, suggesting tissue specificity in teinturier grapes. Light conditions significantly influence the evolution of flavonoids. Moreover, studies on the mechanisms governing flavonoid accumulation in light response sensitivity of teinturier grapes are limited. In the three consecutive years of study, the exposure of Kolor clusters was altered by bagging from pre-veraison to harvest. QqQ/MS and RT‒qPCR wereused to determine the individual anthocyanin contents and the relative gene expression. There was a significant decrease in the total anthocyanins and flavonols in the Kolor berries, with flavonols showing greater sensitivity to bagging. Bagging did not exert a consistent impact on the flavan-3-ols in Kolor berries. The sensitivities of anthocyanins in Kolor skin and pulp differed under light exclusion conditions. The concentration of trihydroxy-substituted anthocyanins in the skin decreased, while the proportion of dihydroxy-substituted anthocyanins in the pulp significantly increased, but the anthocyanin concentration in the pulp did not change significantly after bagging. The contents of malvidins and quercetins in the skin, and myricetins and quercetins in the pulp, were significantly reduced after bagging. The expression of flavonoid synthesis genes in Kolor skin and pulp was tissue-specific. After bagging, UFGT expression increased in the pulp and decreased in the skin. In addition, LDOX, FLS-1, CHI-1, CHI-2, F3H-1, F3H-2, and MYB4a exhibited sensitive light responses in both the skin and pulp. This study offers new insights into the regulation of flavonoids in Kolor grapes under light exclusion conditions.
- Published
- 2024
- Full Text
- View/download PDF
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