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Citation: XU Yu-Lan, YANG Cheng, LIU Xiao-Ya, CHEN Ming-Qing, SUN Chao, XI Dong-Lei. Enzymatic Hydrolysis of Isolated Soybean Protein[J]. Chinese Journal of Applied Chemistry, ;2005, 22(5): 557-559. shu

Enzymatic Hydrolysis of Isolated Soybean Protein

1.
School of Chemical and Material Engineering, Southern Yangtze University, Wuxi 214036

Corresponding author: YANG Cheng,
Received Date: 13 August 2004
Available Online: 11 November 2004
Fund Project: 国家自然科学基金(20374025,20476040)资助项目 (20374025,20476040)

The enzymatic (Alcalase 3.0T) hydrolysis process of isolated soybean protein (ISP) and radius distribution of its hydrolysis product were investigated and characterized by laser light scattering (LLS) and ζ-potential methods.With the increase of hydrolysis time,the average hydrodynamic radius of hydrolyzed ISP aggregates decreased from 160 nm to 110 nm,and the hydrodynamic radius distribution of ISP aggregates broadened,and the ζ-potential decreased from -24 mV to about -37 mV.The enzymatic (Alcalase 3.0T) hydrolysis reaction finished within 3h.FTIR spectra of ISP before and after the hydrolysis indicate that the hydrolyzates of ISP had much more non-associated O-H and N-H groups than native ISP.
- isolated soybean protein,
- hydrolyzation,
- laser light scattering
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