drying periods by ultrafiltration. P1 possessed a stronger 1, 1-diphenyl-2-picrylhydrazyl
(DPPH) radical scavenging activity in the first 18h of drying and a weaker activity during the
rest period, comparing with P2. The analysis of amino acid composition indicated that
histidine was the major amino acid in both peptide fractions, which content was changed
during the process. In addition, Glu, Gly, Arg were important constituent amino acids in both …