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The peptide was purified from duck skin by-products using a reverse phase high performance liquid chromatography (RP-HPLC), and indentify the antioxidant activity. The sequence of the antioxidative peptide was identified as His-Thr-Val-Gln-Cys-Met-Phe-Gln (molecular weight of 941.43Da). In addition, the IC 50 value of the antioxidative peptide for hydroxyl, DPPH, alkyl, and superoxide radical...
In this study, free radical scavengers and angiotensin I converting enzyme (ACE) inhibitors from the gelatin hyrdolysates of duck skin by-products were examined. Gelatin was obtained by pretreating duck skin by-products with acid and alkaline and hydrolysis using nine proteases (Alcalase, Collaganase, Flavourzyme, Neutrase, Protamex, papain, pepsin, trypsin and α-chymotrypsin). Of the various hydrolysates...
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