FOOD SCIENCE ›› 2003, Vol. 24 ›› Issue (5): 75-78.

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Study on Hydrolysis of Corn Gluten Meal and the Analysis of Hydrolysate

 YUN  Xia, ZHU  Bei-Wei, WU  Hai-Tao, LIU  Ying-Xin   

  • Online:2003-05-15 Published:2011-12-13

Abstract: In this paper, the protein of CGM (Corn Glulen Meal) was hydrolyzed by Neutrase and Flavorzyme. The methodof bienzyme hydrolysis of CGM was studied, and the hydrolysates were analyzed. The results indicated that the optimumhydrolytic conditions were: S%=0.9%,S/EF=30,EF/EN=8,when pH=6.7,T=47℃ and hydrolysis time 40min. The indexes ofDegree of Hydrolysis (DH%), Yield of Acid Soluble Peptides (YASP%), and Nitrogen Solubility Index (NSI%) were 32.82%,87.46%, and 37.43% respectively. The contents of the hydrolysates were: Amino Acid 4.84mg/g Pr and Poly-peptide is 181.86mg/g Pr.The molecular weight of poly-peptide was about 1089 Dal to 1728Dal.

Key words: CGM, neutrase and flavorzyme, protease, poly-peptide