Effect of High-Voltage Positive Electrostatic Field on the Surface Hydrophilicity of Lemon

doi:10.11924/j.issn.1000-6850.casb2021-0193

Abstract

Abstract:

The paper aims to investigate the effects of different electrostatic field parameters on the hydrophilic molecules of lemon epidermal wax in the process of electrostatic preservation. In this study, palmitic acid molecule was used as the research object, and the effects of high-voltage positive electrostatic field on the surface hydrophilicity of lemon were measured by combining the molecular simulation with theoretical analysis and experimental research. The results show that 180 kV/m positive electrostatic field strength is predicted by Materials Studio software, under this level, the MSD index and dipole moment value of palmitic acid are the minimum, and the hydrophilicity is the lowest. Further, it was detected by Fourier transform infrared spectrometer that the hydroxyl group inhibition effect of palmitic acid was the best after treatment at 200 kV/m for 6 days. The surface wettability is analyzed by Photoshop software, and the best effect is finally verified under 200 kV/m for 6 d. In this experiment, the electrostatic field parameters suitable for lemon storage are preliminarily selected, which could provide a theoretical basis for selecting the appropriate electrostatic field strength in future application process.

Key words: high-voltage positive electrostatic field, palmitic acid, hydrophilicity, lemon, storage and preservation

CLC Number:

S183

SUN Chenglong, XUE Xinyu, LU Yuanyuan, SONG Yanbo, LIU Zhenyu. Effect of High-Voltage Positive Electrostatic Field on the Surface Hydrophilicity of Lemon[J]. Chinese Agricultural Science Bulletin, 2022, 38(4): 127-132.

Figures/Tables 6

References 25

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