Results 231 to 240 of about 328,371 (293)

Condensed tannins act against cattle nematodes

Veterinary Parasitology, 2011
The use of natural plant anthelmintics was suggested as a possible alternative control of gastrointestinal nematodes (GIN) in ruminants. Direct anthelmintic effects of tannin-containing plants have already been shown in sheep and goat GIN. These anthelmintic properties are mainly associated with condensed tannins.
Novobilský, Adam, Mueller-Harvey, Irene, Thamsborg, Stig Milan   +2 more
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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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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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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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CONDENSED TANNINS OF RAPESEED MEAL

Journal of Food Science, 1979
ABSTRACT The study was undertaken to determine the amount and nature of condensed tannins in rapeseed meal. No condensed tannins were found in rapeseed meats (endosperm plus germ). The hulls, however, yielded 0.1% condensed tannins by 70% aqueous acetone extraction, the bulk of the condensed tannins in the hulls being unextractable by
J. LEUNG, T. W. FENTON, M. M. MUELLER, O. R. CLANDININ   +3 more
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Condensed Tannins in Canola Hulls

Journal of Agricultural and Food Chemistry, 1994
The total content and the biological activity of tannins in canola hulls were determined in several samples of hulls of Westar, Cyclone, Excel, and Delta canola varieties. The contents of condensed tannins in canola hulls ranged from 14 to 1556 mg of catechin equivalents/100 g of hulls as determined by vanillin assay, up to 8 times more condensed ...
Marian Naczk, Tom Nichols, David Pink, Frank Sosulski   +3 more
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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: competing nucleophilic centres in biomimetic condensation reactions

Phytochemistry, 1982
Abstract The relative contributions of nucleophilicity and steric hindrance in determining the course of the reaction during the formation of ‘angular ...
Jacobus J. Botha, Phillip M. Viviers, Daneel Ferreira, David G. Roux   +3 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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Condensed tannins of pea seeds

Plant Science Letters, 1984
Summary Condensed tannins were present in pea testas which contained anthocyanin, but were very much reduced in amount in testas lacking anthocyanin and in cotyledons. Testa tannin was more highly polymerised than that from cotyledons.
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