Food, Medicines and Consumer Safety Department, Scientific Institute of Public Health, Rue Juliette Wytsman 14, B-1050 Ixelles, Belgium.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2012;29(7):1058-66. doi: 10.1080/19440049.2012.672339. Epub 2012 Apr 11.
Two varieties of melons (Cucumis melo) were treated with two fungicides (carbendazim and maneb) and four insecticides (acetamiprid, cyromazin, imazalil and thiamethoxam) to quantify the effect of household processing on the pesticide residues. To ensure sufficiently high levels of residues in flesh and peel, the most concentrated formulations were applied observing good agricultural practice. The peeling step decreased the concentration of pesticide residues for maneb, imazalil and acetamiprid by more than 90%. Cyromazin, carbendazim and thiamethoxam were reduced by approximately 50%. The reduction of the pesticides could not be fully explained by the systemic character of the pesticides. However, the agricultural practices (time of application), solubility and mode of action (systemic versus contact pesticide) of the pesticides could be used to explain the difference in processing factors for the studied pesticides. Degradation products (melamine and ethylenethiourea) were also investigated in this study, but were not detected.
两种甜瓜（甜瓜）用两种杀菌剂（多菌灵和代森锰锌）和四种杀虫剂（噻虫嗪、环虫酰肼、抑霉唑和噻虫啉）进行处理，以量化家庭加工对农药残留的影响。为了确保果肉和果皮中有足够高的残留水平，根据良好农业规范使用了最浓缩的制剂。削皮步骤使代森锰锌、抑霉唑和噻虫嗪的农药残留浓度降低了 90%以上。环虫酰肼、多菌灵和噻虫啉减少了约 50%。农药的减少不能完全用农药的系统性来解释。然而，可以利用农药的农业实践（施药时间）、溶解度和作用方式（内吸性与接触性农药）来解释研究中所用农药在加工因素方面的差异。在本研究中还研究了降解产物（三聚氰胺和乙撑硫脲），但未检出。
