Results 171 to 180 of about 316,761 (234)

Inhibition of Trypsin by Condensed Tannins and Wine

Journal of Agricultural and Food Chemistry, 2007
Phenolic compounds are abundant vegetable secondary metabolites in the human diet. The ability of procyanidin oligomers and wine polyphenols to inhibit trypsin activity was studied using a versatile and reliable in vitro method. The hydrolysis of the chromogenic substrate N-benzoyl-d,l-arginine-p-nitroanilide (BApNA) by trypsin was followed by ...
Rui, Gonçalves, Susana, Soares, Nuno, Mateus, Victor, de Freitas   +3 more
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Microbial Degradation of Condensed Tannins

Science, 1976
A strain of Penicillium adametzi Zaleski was isolated from enrichment cultures with condensed tannins as the carbon source. Low-molecular-weight condensed tannins, extracted and purified from Pinus radiata bark, were used as substrates for quantitative growth measurements on this fungus in ...
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Insoluble Condensed Tannins of Canola/Rapeseed

Journal of Agricultural and Food Chemistry, 2000
The contents of soluble, SDS-extractable, and insoluble condensed tannins were determined in canola/rapeseed hulls from several varieties by utilizing the proanthocyanidin assay. The total amount of tannins in rapeseed/canola hulls ranged from 1913 to 6213 mg per 100 g of oil-free hulls.
M, Naczk, R, Amarowicz, D, Pink, F, Shahidi   +3 more
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Significance of the Condensed Tannins

1989
The condensed tannins are biologically significant natural products primarily because of their ready complexation with proteins. These compounds are particularly important flavor components, being responsible for the astringency of many fruits and vegetable products.
L. J. Porter, R. W. Hemingway
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Dietary Intake of Hydrolyzable Tannins and Condensed Tannins to Regulate Lipid Metabolism

Mini-Reviews in Medicinal Chemistry, 2022
Abstract: Lipid metabolism disorder is a multifactor issue, which contributes to several serious health consequences, such as obesity, hyperlipidemia, atherosclerosis diabetes, non-alcoholic fatty liver, etc. Tannins, applied as naturally derived plants, are commonly used in the study of lipid metabolism disease with excellent safety and effectiveness
Chengfu Yuan, Yuming He, Yuanyang Li, Leiqi Zhu, Chong Guo, Mengzhen Xue, Fangqi Xia, Yaqi Wang, Dengke Jia, Luoying Li, Yan Gao, Yue Shi   +11 more
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Condensed tannins of cotton leaves

Phytochemistry, 1981
Abstract Some primitive races of cotton ( Gossypium hirsutum ) are almost immune to spider mites. These strains contain condensed tannins of about 20% of dry wt. The tannins accumulate in leaves and their concentration increases in successive leaves until about the 10th true leaf. The upper leaves maintain this quantity until early fall.
Harry C. Lane, Michael F. Schuster
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Inhibition of α-amylase activity by condensed tannins

Food Chemistry, 2011
The ability of grape seed procyanidins to inhibit α-amylase activity was studied using a colorimetric method. This ability was found to be related with the average degree of polymerisation of the tested procyanidins. These interactions were further evaluated by fluorescence quenching, dynamic light scattering (DLS) and nephelometry, in order to ...
Rui Gonçalves, Nuno Mateus, Victor de Freitas   +2 more
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The condensed tannins of Leptarrhena pyrolifolia

Phytochemistry, 1993
Abstract A proanthocyanidin (PA) polymer, a condensed tannin, was isolated, purified and characterized from the leaves of Leptarrhena pyrolifolia. The predominant extension units in the polymer were (−)-epicatechin and (+)-gallocatechin with traces of (−)-epigallocatechin. (+)-Catechin was the predominant terminal unit.
Mohammed R. Koupai-Abyazani, Bruce A. Bohm   +1 more
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Analysis of condensed tannins: a review

Animal Feed Science and Technology, 2001
Abstract Plant condensed tannins (proanthocyanidins, PAs) have both positive and negative effects on feed digestibility and animal performance, depending both on the quantity and biological activity of the tannins that are present. In this review, the chemistry and analysis of condensed tannins (PAs) are examined. Our first focus is on the complexity
P Schofield, D.M Mbugua, A.N Pell
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ChemInform Abstract: Condensed Tannins.

ChemInform, 1999
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
D. Ferreira, E. V. Brandt, J. Coetzee, E. Malan   +3 more
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