Fig. 7From: Insights into the keratin efficient degradation mechanism mediated by Bacillus sp. CN2 based on integrating functional degradomicsChanges in the degradation products of feathers during enzymatic hydrolysis. a Analysis of soluble peptides in feather hydrolysates by HPLC. b Analysis of free amino acids in feather hydrolysates. 0 h indicates no inoculation of bacteria. The sampling times were 6, 12, 24, 36, 48, and 60 h. To aid interpretation, HPLC data are displayed as average valuesBack to article page