FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (11): 353-356.

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Study on Modification of Soybean Protein Isolates with Compound Proteases

 HUANG  Hao   

  1. School of Chemistry and Bio-engineering, Yichun University, Yichun 336000, China
  • Online:2007-11-15 Published:2011-11-22

Abstract: Soybean protein isolates (SPI) was modified by compound proteases in this research, Results showed that the NSI (Nitrogen solubility index) value of the modified SPI increases sharply (from 82 to 98), and the digest has no bittering taste basically. The optimum conditions for enzymatic hydrolysis were: E/S 0.55% (W/W), substrate concentration 1:8(W/W) and reaction time 60 min.

Key words: soybean protein isolates, modification, protease