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Vol. 25 No. 4 (2013): Vol 25 Issue 4

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Photodegradation Kinetics of Aflatoxin B1 in Solvent

https://doi.org/10.14233/ajchem.2013.13738
Ruijie Liu
School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu Province, P.R. China
Ming Chang
School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu Province, P.R. China
Qingzhe Jin
School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu Province, P.R. China
Jianhua Huang
School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu Province, P.R. China
Yuanfa Liu
School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu Province, P.R. China
Xingguo Wang
School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu Province, P.R. China

Corresponding Author(s) : Xingguo Wang

wxg1002@qq.com; ruijieliu-2007@hotmail.com

Asian Journal of Chemistry, Vol. 25 No. 4 (2013): Vol 25 Issue 4

Abstract

A photodegradation study of aflatoxin B1 (AFB1) in acetonitrile solution was performed under UV irradiation at different aflatoxin B1 initial concentrations, UV irradiation intensities and wavelengths. The effect of UV intensity and wavelengths on the aflatoxin B1 photodegradation ratio is dominative, comparing to aflatoxin B1 initial concentration. The photodegradation of aflatoxin B1 was proved to follow first-order reaction kinetics (R2 ³ 0.99). The aflatoxin B1 photodegradation rate under various conditions was lower following the order: v(800 μw/cm2) > v(400 μw/cm2) > v(200 μw/cm2) and v(UV-C) > v(UV-A) > v(VIS). This study reports the photodegradation behaviour-kinetics in solvent model, providing clues to the study of the photodegradation mechanism of aflatoxin B1 in real food medium and the UV method applied in practical decontamination of aflatoxin B1 in food.

Keywords

Aflatoxin B1 Photodegradation UV Kinetics
Liu, R., Chang, M., Jin, Q., Huang, J., Liu, Y., & Wang, X. (2012). Photodegradation Kinetics of Aflatoxin B1 in Solvent. Asian Journal of Chemistry, 25(4), 2251–2254. https://doi.org/10.14233/ajchem.2013.13738
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