Ultrasound frequency effect on soybean protein: Acoustic field simulation, extraction rate and structure

• DOI: 10.1016/j.lwt.2021.111320
• Publication Date: 2021-03-18T00:17:40Z
• Authors: Yanhua Ding; Haile Ma; Ke Wang; S.M. Roknul Azam; Yaoyao Wang; Jie Zhou; Wenjuan Qu
• Keywords: 04 agricultural and veterinary sciences; 0405 other agricultural sciences

Abstract This study endeavored to develop a method to evaluate the effect of ultrasound frequency on soybean protein extraction. In the ultrasonic frequencies range from 20 to 52 kHz, 28, 35, and 45 kHz were predicted to be the resonance frequencies in the ultrasound-assisted extraction (UAE) process of soybean protein by simulating the acoustic field distribution. The absolute sound pressure and the relative standard deviation could be well-coordinated via frequency regulation. The extraction experiment of soybean protein showed that the extraction rate was improved significantly (p