Antioxidant Activity and Functional Properties of the Hydrolysate of Crayfish (Procambarus clarkia) Head Protein Prepared with Protamex
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Abstract:
Protamex was used as biocatalyst to hydrolyze the crayfish (Procambarus clarkia) head protein (CHP) to prepare antioxidant peptides. The antioxidant activities of crayfish (Procambarus clarkii) head protein hydrolysate (CHPH), including reducing power, Fe2+ chelating activity, DPPH radical scavenging activity, increased with increasing the hydrolysate concentration. The molecular weight distribution of CHPH revealed that 95.14% of the total amount was peptides with molecular weight lower than 1000 Da. And pH values had a significant effect on solubility, foaming capacity and emulsion activity of the hydrolysate.
