Effects of Modified Processing Methods on Structural Changes of Black Soybean Protein Isolate

Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry
Yinglei ZhangShouwen Zhang

Abstract

To explore better methods of natural protein modification for black soybean, comparisons among the effects of different modified methods on structural changes of the modified products of black soybean protein isolate (BSPI) were carried out in this study. The modified products used in this study included enzymatic crossing-link black soybean protein isolate (ECBSPI), wet heating treatment glycosylation black soybean protein isolate (WHTGBSPI) and especially enzymatic glycosylation black soybean protein isolate catalyzed by transglutaminase (EGBSPI). The effects of the modification methods on structural changes were analyzed by SDS-polyacrylamide gel electrophoresis (SDS-PAGE), amino acid content and circular dichroism (CD) analysis. Moreover, the processing properties changes caused by structural changes of BSPI were detected by thermogravimetric analysis, particle size analysis, zeta-potential, surface hydrophobicity, solubility, emulsification, gelation, and rheological properties. The results show that the modified BSPI products were protein polymers, and among them, EGBSP and WHTGBSPI are covalently bonded glycation products. Products modified by Maillard reactions and transglutaminase (TG) display partly destroyed α-helix ...Continue Reading

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Citations

Sep 4, 2019·Journal of Agricultural and Food Chemistry·Yaya WangShuo Wang

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Methods Mentioned

BETA
glycosylation
circular dichroism
dynamic light scattering
electrophoresis
Circular

Software Mentioned

Origin
MS Excel

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