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Condensed Tannins Are Only Partially Responsible for Variations in Nutrient Digestibilities of Sorghum Grain Cultivars
- Source :
- Journal of Agricultural and Food Chemistry. 44:848-853
- Publication Year :
- 1996
- Publisher :
- American Chemical Society (ACS), 1996.
-
Abstract
- Nitrogen-corrected true metabolizable energy (TMEn) and true amino acid digestibility values were determined, using cecectomized cockerels, for 20 sorghum [Sorghum bicolor (L.) Moench] cultivars that ranged in catechin equivalent (CE) percentages from 0 to 3.88. There were significant (P ≤ 0.01) overall inverse relationships between CE content and (1) the individual digestibilities of lysine, methionine, threonine, isoleucine, leucine, valine, phenylalanine, histidine, and arginine; (2) the mean digestibility of essential amino acids; (3) the mean digestibility of nonessential amino acids; and (4) TMEn values. In contrast to these overall trends, several cultivars of similar condensed tannin content had markedly different nutrient digestibilities. The dissimilarity of protein digestibilities in sorghum genotypes of similar tannin content was confirmed by subjecting samples of the ground grains to in vitro pepsin digestion with subsequent visualization of the undigested proteins by SDS−PAGE. The present wo...
- Subjects :
- chemistry.chemical_classification
Methionine
biology
food and beverages
General Chemistry
Sorghum
biology.organism_classification
chemistry.chemical_compound
chemistry
Proanthocyanidin
Agronomy
Valine
Tannin
Food science
Condensed tannin
Isoleucine
Leucine
General Agricultural and Biological Sciences
Subjects
Details
- ISSN :
- 15205118 and 00218561
- Volume :
- 44
- Database :
- OpenAIRE
- Journal :
- Journal of Agricultural and Food Chemistry
- Accession number :
- edsair.doi...........6dd703a95df5f2bbc9ea2d2232b6b132