The novel gelling polysaccharides (NPGP) were extracted and characterized from (Linn.) Gaertn. seeds, while properties and potential application of NPGP gels with tea polyphenols were further explored. NPGP was composed of GalA, Glc, Rha, Gal, Xyl, Ara, and Man at a molar ratio of 71.87:17.13:3.10:2.55:2.19:1.64:1.52, with molecular weight of 6.32 × 10 Da and low methoxylation degree of 45.21%. The gelling properties of NPGP gel induced by tea polyphenols showed that tea polyphenols significantly improved the structural and rheological properties of NPGP gel, due to the formation of dense network by hydrogen bonds and the increase of crystalline degree of NPGP. NPGP gels with tea polyphenols could significantly ameliorated the texture, water-holding capacity, aggregation, leading force, and moisture distribution of surimi during freeze-thaw cycles. All results suggest that NPGP gels with tea polyphenols has fine properties and show potential to be applied as natural additives in food industry.
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http://dx.doi.org/10.1016/j.fochx.2024.101707 | DOI Listing |
Food Chem
January 2025
State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Engineering, Ningbo University, Ningbo, Zhejiang, China. Electronic address:
Dietary polyphenols represent a diverse group of plant-derived compounds known for their extensive biological activities, offering significant promise in the prevention and treatment of various chronic illnesses. Despite their potential, advancements in their research have been curtailed by challenges in structural analysis and limitations in existing research models. This review marks a pioneering exploration into how bile acids, gut microbiota, and the gut-brain axis serve as conduits through which dietary polyphenols can exert therapeutic effects on Inflammatory Bowel Disease (IBD).
View Article and Find Full Text PDFNutrients
January 2025
Department of Medical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, 61-614 Poznań, Poland.
Tea is a significant source of flavonoids in the diet. Due to different production processes, the amount of bioactive compounds in unfermented (green) and (semi-)fermented tea differs. Importantly, green tea has a similar composition of phenolic compounds to fresh, unprocessed tea leaves.
View Article and Find Full Text PDFMolecules
January 2025
National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, China.
Lichuan black tea (LBT) is a well-known congou black tea in China, but there is relatively little research on its processing technology. Echa No. 10 is the main tea tree variety for producing LBT.
View Article and Find Full Text PDFMolecules
January 2025
Department of Chemistry & Biochemistry, Miami University, Oxford, OH 45056, USA.
Epigallocatechin gallate (EGCg), an abundant phytochemical in green tea, is an antioxidant that also binds proteins and complex metals. After gastrointestinal absorption, EGCg binds to serum albumin in the hydrophobic pocket between domains IIA and IIIA and overlaps with the Sudlow I site. Serum albumin also has two metal binding sites, a high-affinity N-terminal site (NTS) site that selectively binds Cu(II), and a low-affinity, less selective multi-metal binding site (MBS).
View Article and Find Full Text PDFAnimals (Basel)
January 2025
College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China.
This research aimed to explore the impact of tea polyphenol (TP) supplementation on the development, antioxidant properties, immune responses, and gut wellness in largemouth bass (, LMB). Four diets with varying levels of TPs (0.00%, 0.
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