The aim of this study was to determine the insecticide residue processing factor (PF) from plums to prunes and the effect of the industrial processing of prunes residue concentrations. Our results show an increase of insecticide concentrations during plum dehydration that is explained by fruit water loss; however, the normalized insecticide residue concentration, based on plum dry weights to compensate dehydration, was reduced. The water washing and tenderizing of prunes produced insecticide residue reductions of 22.9 ± 4.5% and 21.9 ± 4.2%, respectively. PF were: 1.157, 1.872, 1.316, 0.192, 2.198, 0.775 and 0.156 for buprofezin, l-cyhalothrin, spirodiclofen, indoxacarb, acetamiprid, imidacloprid and emamectin benzoate, respectively, being directly related to water solubility, aqueous hydrolysis and degradation point and inversely related to molecular mass and melting point. In plums for the dehydrated agroindustry the final product is prunes, therefore, it is crucial to consider the PF to determine the specific preharvest interval for this important agroindustry.

这项研究的目的是确定从李子到李子的杀虫剂残留加工因子（PF）以及李子残留浓度的工业加工的影响。我们的研究结果表明，李子脱水过程中杀虫剂的浓度增加，这可以通过水果失水来解释。但是，基于李子干重以补偿脱水的标准化杀虫剂残留浓度降低了。李子的水洗和嫩化分别使杀虫剂残留量减少了22.9±4.5％和21.9±4.2％。PF分别为：1.157，1.872，1.316，0.192，2.198，0.775和0.156噻嗪酮，升-氟氯氰菊酯，螺环氯芬，茚虫威，扑热息痛，吡虫啉和苯甲酰胺氨曲菌素分别直接与水溶性，水解和降解点有关，而与分子量和熔点成反比。在脱水农业工业的李子中，最终产品是梅子，因此，至关重要的是要考虑PF以确定该重要农业工业的特定收获前间隔。