In order to make full use of cod fish heels,the mixture of protease was used to extract protein from cod frame.The Maillard reaction products(MRPs) were prepared from reactions between the hydrolysates of cod frame and glucose,xylose and mixed sugar [m(glucose):m(xylose)= 4:1] at 110℃ for 90 min,respectively.The reducing power and DPPH free radical scavenging activity of the MRPs were investigated.The results indicated that the recovery of soluble products was 24.14%,which contained protein of 89.64%,delicious amino acid of 46.33% and indispensable amino acid of 37.65%.The MRPs obtained from reactions between reducing sugar(xylose and mixed sugar,except glucose) and hydrolysates of cod frame showed significant free radical scavenging activity and reducing power and marked by richness and fullness of seafood flavor.Thus,the MRPs from protein hydrolysates of cod frame are the nutritional flavorful food additives with strong antioxidative activity.
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