Study on the Degradation Effect of Plant-Derived Active Ingredients on Organophosphorus Pesticides

Jun Sun(Shandong Rongjian Biotechnology Co., Ltd., Jinan, Shandong, 250200, China)
Tongxin Zhang(Shandong Rongjian Biotechnology Co., Ltd., Jinan, Shandong, 250200, China)

Abstract


In order to explore new ways and methods for the degradation of organophosphorus pesticides, the degradation effects of plant-derived active ingredients on three organophosphorus pesticides were studied. Mix Rhubarb, Pittosporum bark, Hibiscus bark, and Chinese gall in 9:4:3:2 parts by mass, crush and soak in water, use GC-MS quantitative detection method, rapid pesticide residue measurement method, and compare the organic phosphorus before and after the test Pesticide concentration changes, clarify its degradation effect on organophosphorus pesticides. The results showed that the degradation rates of chlorpyrifos and parathion were 93.2% and 92.9% in the extract within 2 minutes; the degradation rate of dichlorvos in the extract within 17 hours was 66.67%, and the degradation of chlorpyrifos within 11 hours the rate is 48.69%. This study shows that the extracts of rhubarb, sea tongs bark, hibiscus bark, and gallnut have significant degradation effects on chlorpyrifos, parathion, dichlorvos and other organophosphorus pesticides.


Keywords


Organophosphorus pesticides; Plant-Derived active ingredients; Pesticide degradation; Chinese medicine agriculture; Soil remediation

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DOI: http://dx.doi.org/10.36956/rwae.v1i1.162

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