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Vol. 26 No. 19 (2014): Vol 26 Issue 19

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Degradation of Organophosphorus Pesticides in Pear by Ozonation

https://doi.org/10.14233/ajchem.2014.16771
Ying Fu
College of Science, Northeast Agricultural University, Harbin 150030, Heilong Jiang, P.R. China
Yu Li
College of Science, Northeast Agricultural University, Harbin 150030, Heilong Jiang, P.R. China
Fei Ye
College of Science, Northeast Agricultural University, Harbin 150030, Heilong Jiang, P.R. China

Corresponding Author(s) : Fei Ye

yefei@neau.edu.cn

Asian Journal of Chemistry, Vol. 26 No. 19 (2014): Vol 26 Issue 19

Abstract

The present study investigated the degradation of two organophosphorus pesticides i.e., malathion and dimethoate, in pear by ozonation in order to establish the effect of operational parameters. Four degradation methods were conducted and ozonation was the most effective way with its advantages of cleanness, convenience and facility. The optimized ozonation conditions of degradation of malathion and dimethoate in pear were as following: the degradation mode was bubbling ozone in water and the degradation time was 0.5 h. The two organophosphorus pesticides could be degraded over 60 % in 0.5 h by bubbling ozone. There was no effect on fruit quality after treatment with ozone.

Keywords

Degradation Malathion Dimethoate Ozonation
Fu, Y., Li, Y., & Ye, F. (2014). Degradation of Organophosphorus Pesticides in Pear by Ozonation. Asian Journal of Chemistry, 26(19), 6609–6612. https://doi.org/10.14233/ajchem.2014.16771
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