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Condensed tannins in horse bean seeds: Chemical structure and apparent effects on poultry
Author(s) -
MartinTanguy Josette,
Guillaume Jean,
Kossa Anatole
Publication year - 1977
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740280815
Subject(s) - proanthocyanidin , chemistry , food science , catechin , condensed tannin , tannin , nitrogen , nutrient , polyphenol , biology , botany , organic chemistry , antioxidant
The seed‐coats of numerous varieties of horse beans contain condensed tannins of the proanthocyanidin type. These polymers consist of molecules of flavan‐3‐ols (catechin, gallocatechin) and flavan‐3,4‐diols (leucocyanidin, leucodelphinidin). Condensed tannins of horse bean seeds appear to depress the growth of muscovy ducklings, to cause a reduction in the weight of eggs produced by laying hens and to decrease the digestibility of nitrogen compounds in growing chicks.