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Synthetic studies of condensed tannins

, 1991
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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.
Michael F Schuster
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Condensed tannins

Proceedings of the 29th International Conference on Computer Graphics and Interactive Techniques. Electronic Art and Animation Catalog., 2002
Created for an Ocean Spray video news release, this animation demonstrates how condensed tannins, a component of cranberry juice, prevent urinary tract infections. Most urinary tract infections are caused by the bacteria e. Coli and their toxins. Fimbria on the bacteria attach to receptors on the bladder wall, facilitating sustained, close exposure to ...
Jane Hurd, Donna DeSmet
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Interactions of tea tannins and condensed tannins with proteins

Journal of Pharmaceutical and Biomedical Analysis, 2010
Binding parameters for the interactions of four types of tannins: tea catechins, grape seed proanthocyanidins, mimosa 5-deoxy proanthocyanidins, and sorghum procyanidins (mDP=17), with gelatin and bovine serum albumin (BSA) have been determined from isothermal titration calorimetry data. Equilibrium binding constants determined for the interaction with
Richard A, Frazier, Eddie R, Deaville, Rebecca J, Green, Elisabetta, Stringano, Ian, Willoughby, John, Plant, Irene, Mueller-Harvey   +6 more
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Condensed tannin purification and characterization of tannin-associated proteins

Journal of Agricultural and Food Chemistry, 1980
The conventional isolation method has been modified in order to minimize protein contamination of tannin purified from high tannin sorghum. The two unique steps of the new procedure are preliminary extraction of the ground grain with ethanol and treatment of the partially purified tannin with phenol to remove traces of noncovalently bound protein ...
A E, Hagerman, L G, Butler
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Tolerance of acridids to ingested condensed tannin

Journal of Chemical Ecology, 1981
Four species of Acridoidea were fed on wheat leaves with and without the condensed tannin, quebracho. In no case was it deleterious to survival and growth at levels below about 10% dry weight on the food. Similarly, consumption, digestibility, and utilization of food were unaffected at up to 10% dry weight.
E A, Bernays, D J, Chamberlain, E M, Leather   +2 more
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Condensed tannins from Myrica gale

Fitoterapia, 2000
From the aerial parts of the Myrica gale catechin, epicatechin, gallocatechin, epigallocatechin, epigallocatechin-3-O-gallate, gallocatechin-(4 alpha-8)-epicatechin, gallocatechin-(4 alpha-8)-epigallocatechin, and gallocatechin-(4 alpha-8)-gallocatechin-(4 alpha-8)-gallocatechin (1), were isolated.
S C, Santos, P G, Waterman
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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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