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Electrophoretic Delivery of γ-aminobutyric Acid GABA into Epileptic Focus Prevents Seizures in Mice
Published on: May 16, 2019
Physicochemical and functional properties of γ-aminobutyric acid-treated soy proteins
Yaosong Wang1, Changqi Liu2, Tianyi Ma1
1Department of Food Science and Engineering, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China.
Abstract:
Gamma-aminobutyric acid (GABA) is a non-protein amino acid with various health benefits. GABA enrichment in soy products such as tempeh, doenjang, and soymilk have been reported. However, no study has explored how GABA interacts with soy proteins and affects their properties. The current study investigated the physicochemical and functional properties of soy proteins in a 4% (w/v) slurry treated with 0.2-1.0% of GABA at 80, 90, and 100 °C. The addition of GABA significantly (P < 0.05) reduced the average particle size and increased the ζ-potential and intrinsic fluorescence intensity of the soy protein slurries. GABA treatment resulted in concentration-dependent increases (P < 0.05) in soy protein solubility, viscosity, rheology, emulsifying and foaming properties. This study, for the first time, investigated the effects of GABA on the properties of soy proteins. The findings would be useful in soy product formulation when GABA is added as a functional ingredient.
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