Aquafaba from Korean Soybean II: Physicochemical properties and composition characterized by NMR analysis

Yue He, Youn Young Shim, Jianheng Shen, Ji Hye Kim, Jae Youl Cho, Wan Soo Hong, Venkatesh Meda, Martin J.T. Reaney

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Aquafaba (AQ) emulsification properties are determined by genetics and seed processing conditions. The physicochemical properties and hydration rates of chickpea (CDC Leader) as a control with proven emulsifying properties were recently reported. Here, we identify correlations between soybean (Backtae, Seoritae, and Jwinunikong) physical, chemical, and hydration properties as well as AQ yield from seed and functional (emulsion and foaming) properties. In addition, a total of 20 compounds were identified by NMR including alcohols (isopropanol, ethanol, methanol), or-ganic acids (lactic acid, acetic acid, succinic acid, citric acid, and malic acid), sugars (glucose, galac-tose, arabinose, sucrose, raffinose, stachyose), essential nutrients (choline, phosphocholine), amino acids (alanine, glutamine), and polyphenols (resveratrol, glycitin). The process used in this study utilizes a soaking step to hydrate the seed of the selected Korean soybean cultivars. The product, AQ, is an oil emulsifier and foaming agent, which is suitable for use as an egg substitute with improved emulsion/foam formation properties when compared with a chickpea-based AQ.

Original languageEnglish
Article number2589
JournalFoods
Volume10
Issue number11
DOIs
StatePublished - Nov 2021

Keywords

  • Aquafaba
  • Chickpea
  • Hydration kinetics
  • NMR
  • Physicochemical property
  • Soybean

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