Research Article Open Access

Complexation of Soy Protein Microgels and Isoflavones: Implication in Modulating Bioavailability

Juan Yang1, Weifeng Lin2, Xiaoquan Yang3 and Zhining Bao4
  • 1 College of Food Science and Engineering, Lingnan Normal University, Zhanjiang, China
  • 2 Department of Food Science and Technology, South China University of Technology, Guangzhou, China
  • 3 Research and Development Centre of Food Proteins, Department of Food Science and Technology, South China University of Technology, Guangzhou, China
  • 4 International Flavors & Fragrances, Inc. Guangzhou, China

Abstract

The soy protein aggregate particles-isoflavones complexes (SPIGs) were prepared by thermally induced protein-polyphenol co-assembly and the in vitro bioavailability of isoflavones with different soy protein matrices was evaluated. The SPIG formed by heating SPI-isoflavone dispersion at 120°C in a narrow pH range, which was defined as spherical particles with uniform size, exhibited better colloidal stability and high isoflavone binding capacity, which was higher than that of native SPI and unheated mixture. The results also showed that different pH had no significant effect on fluorescence quenching by protein-isoflavone interaction. The bioavailability of isoflavones was significantly elevated when it was encapsulated in the particles. The overall bioavailability of isoflavones maybe depends on the biotransformation of isoflavones and the production of bioactive metabolites.

American Journal of Biochemistry and Biotechnology
Volume 18 No. 4, 2022, 476-483

DOI: https://doi.org/10.3844/ajbbsp.2022.476.483

Submitted On: 31 August 2022 Published On: 10 December 2022

How to Cite: Yang, J., Lin, W., Yang, X. & Bao, Z. (2022). Complexation of Soy Protein Microgels and Isoflavones: Implication in Modulating Bioavailability. American Journal of Biochemistry and Biotechnology, 18(4), 476-483. https://doi.org/10.3844/ajbbsp.2022.476.483

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Keywords

  • Soybean Protein Isolates
  • Particles
  • Isoflavones
  • Interaction
  • Bioconversion