1. The droplet breakup model and characteristics of pH-shifted peanut protein isolate-high methoxyl pectin stabilised emulsions under ultrasound.
- Author
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Zhang, Lifen, Li, Yingxi, Sun, Xiaoyang, Lai, Shaojuan, and Chen, Fusheng
- Subjects
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PECTINS , *EMULSIONS , *ULTRASONIC imaging , *PARTICLE size distribution , *ELECTRON distribution , *PEANUTS - Abstract
[Display omitted] • The occurrence state of PPI-HMP was different at pH 5.0, 7.0, and 9.0. • Droplet breakup model under ultrasound was employed to analyse emulsion properties. • Characteristics of emulsions stabilised by PPI-HMP at pH 7.0 and 9.0 differed from that at pH 5.0. • Formation mechanisms of pH-shifted PPI-HMP stabilised emulsion under ultrasound were different. The effect of pH on the occurrence states of peanut protein isolate (PPI) and high methoxyl pectin (HMP), and droplet breakup model of the emulsions under ultrasound were studied. Particle size distribution and scanning electron microscopy results showed that PPI-HMP existed a soluble complex at pH 5.0, had no interaction at pH 7.0, and was co-soluble at pH 9.0. Droplet breakup model results revealed that the characteristics of emulsion stabilised by PPI-HMP treated at pH 5.0 was different from that at pH 7.0 and 9.0. The average diameter of the droplet well satisfied the model. According to rheological properties, interface tension, and microstructure, the formation mechanism and characteristics of emulsion stabilised by PPI-HMP treated at pH 5.0 was different from that at pH 7.0 and pH 9.0. The research provided a reference for constructing emulsions using pH-shifted PPI-HMP under ultrasound. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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