Effects of intrinsic tannins on proteolysis dynamics, protease activity, and metabolome during sainfoin ensiling.

ABSTRACT: Condensed tannins (CT) from sainfoin have a high capacity to inhibit proteolysis. A previous study reported that CT from sainfoin can inhibit lactic acid bacteria activity and decrease ammonium-nitrogen (N) content during sainfoin ensiling; however, no study has focused on the metabolome of ensiled sainfoin. The objective of the present study was to investigate the effects of CT [following supplementation of deactivated CT with polyethylene glycol (PEG)] on protease activity, keystone bacteria, and metabolome during sainfoin ensiling. According to the results, PEG amendment increased non-protein N, amino acid, and soluble protein contents significantly (in the 49.08-59.41, 116.01-64.22, and 23.5-41.94% ranges, respectively, p < 0.05) during ensiling, whereas neutral detergent-insolu

SUBMITTER: Huang RZ 

PROVIDER: S-EPMC9433569 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature