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Tytuł pozycji:

高压均质对大豆分离蛋白-大豆异黄酮相互作用 及其复合物功能性质的影响. (Chinese)

Tytuł:
高压均质对大豆分离蛋白-大豆异黄酮相互作用 及其复合物功能性质的影响. (Chinese)
Autorzy:
王 娜
吴长玲
陈凡凡
李 杨
滕 飞
Temat:
FOURIER transform infrared spectroscopy
SOY proteins
ULTRAVIOLET spectroscopy
PARTICLE size distribution
FLUORESCENCE quenching
CONFORMATIONAL analysis
ZETA potential
Alternatywny tytuł:
Effect of High Pressure Homogenization on Soybean Protein Isolate-Soybean Isoflavone Interaction and Functional Properties of Their Complex. (English)
Źródło:
Shipin Kexue/ Food Science; 2020, Vol. 41 Issue 19, p146-153, 8p
Abstract (English):
In order to find out the effect of high pressure homogenization on the interaction between soybean protein isolate (SPI) and soybean isoflavone (SI) and the functional properties of their complexes and to determine the best treatment conditions, complexation between 10 mg/mL SPI and 0, 0.2 or 2 mg/mL SI was triggered using different homogenization pressures. The conformational differences among the resulting composites were analyzed by ultraviolet spectroscopy (UVS), fluorescence spectroscopy (FS) and Fourier transform infrared spectroscopy (FTIR). Their hydrodynamic radius and functional properties were characterized by their particle size, zeta potential, solubility and hydrophobicity. The results showed that the fluorescence quenching of SPI by SI was static as evaluated by FTIR. When the pressure was 80 MPa and the SI concentration was 0.2 mg/mL, the particle size distribution was stable, and the absolute value of zeta potential, solubility, and hydrophobicity were remarkably improved (P < 0.05). UVS and FTIR indicated that the microenvironment near tryptophan residues in SPI was more hydrophilic and the secondary structure of SPI was changed. [ABSTRACT FROM AUTHOR]
Czasopismo naukowe
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