FTIR spectroscopic characterization of soy proteins obtained through AOT reverse micelles

文献类型： 外文期刊

第一作者： Chen, Xiangyan

作者： Chen, Xiangyan;Ru, Yi;Chen, Fengliang;Wang, Xianchang;Zhao, Xiaoyan;Ao, Qiang

作者机构：

关键词： fourier transform infrared (FTIR);spectroscopy;soy proteins;reverse micelles;conformation

期刊名称：FOOD HYDROCOLLOIDS （ 影响因子：9.147； 五年影响因子：9.169 ）

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年卷期：

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收录情况： SCI

摘要： Fourier transform infrared (FTIR) method was used to study the conformations of soy protein obtained through aqueous solution and bis(2-ethylhexyl) sodium sulfosuccinate (AOT) reverse micelle extraction. The results showed that there were changes in signal intensity and/or position of IR bands at 4000 -400 cm~(-1) when the soy proteins were separated by two extraction methods. The FTIR spectral changes were subsequently assessed using the second derivative spectroscopy in the amide I region (1700-1600 cm~(-1)). The contents of α-helix, β-sheet, turn and irregular conformations for soy proteins using aqueous solution extraction were 11.6%, 32.8%, 44.3% and 11.3%, respectively; while using AOT reverse micelle extraction 13.1%, 41.6%, 32.5% and 12.9%, respectively. The amount change of these structures might affect functional properties of soy proteins.

分类号： TS2

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