Changes in eleven pesticide residues in jujube (Ziziphus jujuba Mill.) during drying processing
文献类型： 外文期刊
作者：
Zhao, Liuwei
2
;
Liu, Fengmao
2
;
Ge, Jing
3
;
Ma, Lili
4
;
Wu, Liming
1
;
Xue, Xiaofeng
1
;
作者机构： 1.Chinese Acad Agr Sci, Inst Apicultural Res, Beijing, Peoples R China
2.China Agr Univ, Dept Appl Chem, Coll Sci, Beijing, Peoples R China
3.Jiangsu Acad Agr Sci, Inst Food Qual & Safety, Nanjing, Jiangsu, Peoples R China
4.Beijing Engn Res Ctr Food Safety Anal, Beijing Ctr Phys & Chem Anal, Beijing, Peoples R China
关键词： Drying process; jujube; pesticide residue; processing factor; safety
期刊名称：DRYING TECHNOLOGY （ 影响因子：4.452； 五年影响因子：4.034 ）
ISSN： 0737-3937
年卷期： 2018 年 36 卷 8 期
页码：
收录情况： SCI
摘要： Processing can concentrate residues or convert residues to more toxic metabolites in food. The residual behavior of 11 pesticides in jujube fruits during four drying processes (freeze-, oven-, sun-, and microwave-drying) was assessed. Jujube samples with residues of dichlorvos, malathion, chlorpyrifos, triadimefon, hexaconazole, myclobutanil, kresoxim-methyl, tebuconazole, epoxiconazole, bifenthrin, and cyhalothrin were obtained from field trials. The degradation rates of pesticides during four drying processes were between 11.4 and 95.1%. Pearson analysis showed that the degradation of pesticide residues in jujube during sun-, oven-, microwave-drying processing was related to vapor pressure and solubility in water of the pesticides. Furthermore, the effects of four drying processes on the processing factors (PFs) were investigated. After freeze-drying, PFs of pesticides were > 1, except for chlorpyrifos, suggesting that the dietary exposure risk of pesticides from jujube might be increased if freeze-dried samples were used. After microwave-drying, the PFs of all pesticides were < 1, indicating microwave-drying process can significantly reduce 11 pesticide residues in dried jujube.
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