Study of ultrasonic cavitation during extraction of the peanut oil at varying frequencies

Lei Zhang; Cunshan Zhou; Bei Wang; Abu El-Gasim A Yagoub; Haile Ma; Xiao Zhang; Mian Wu

doi:10.1016/j.ultsonch.2016.12.034

Study of ultrasonic cavitation during extraction of the peanut oil at varying frequencies

Ultrason Sonochem. 2017 Jul:37:106-113. doi: 10.1016/j.ultsonch.2016.12.034. Epub 2016 Dec 28.

Authors

Lei Zhang¹, Cunshan Zhou², Bei Wang¹, Abu El-Gasim A Yagoub³, Haile Ma⁴, Xiao Zhang⁵, Mian Wu¹

Affiliations

¹ School of Food and Biological Engineering, Jiangsu University, 212013 Zhenjiang, China.
² School of Food and Biological Engineering, Jiangsu University, 212013 Zhenjiang, China. Electronic address: cunshanzhou@163.com.
³ Faculty of Agriculture, University of Zalingei, P.O. Box: 06, Zalingei, Sudan.
⁴ School of Food and Biological Engineering, Jiangsu University, 212013 Zhenjiang, China. Electronic address: mhl@ujs.edu.cn.
⁵ Department of Mathematics and Statistics, Mississippi State University, Starkville, MS 39762, USA.

PMID: 28427612
DOI: 10.1016/j.ultsonch.2016.12.034

Abstract

The ultrasonic extraction of oils is a typical physical processing technology. The extraction process was monitored from the standpoint of the oil quality and efficiency of oil extraction. In this study, the ultrasonic cavitation fields were measured by polyvinylidene fluoride (PVDF) sensor. Waveform of ultrasonic cavitation fields was gained and analyzed. The extraction yield and oxidation properties were compared. The relationship between the fields and cavitation oxidation was established. Numerical calculation of oscillation cycle was done for the cavitation bubbles. Results showed that the resonance frequency, f_r, of the oil extraction was 40kHz. At f_r, the voltage amplitude was the highest; the time was the shortest as reaching the amplitude of the waveform. Accordingly, the cavitation effect worked most rapidly, resulting in the strongest cavitation intensity. The extraction yield and oxidation properties were closely related to the cavitation effect. It controlled the cavitation oxidation effectively from the viewpoint of chemical and physical aspects.

Keywords: Cavitation bubble; Monitoring; Oil extraction; Oxidation property; Ultrasonic cavitation.