A fast multi-residue analysis of twenty-four classes of pesticide in sesame (Sesamum indicum L.) and their migration into processed products.

Food research international (Ottawa, Ont.) Pub Date : 2023-11-01 Epub Date: 2023-07-31 DOI:10.1016/j.foodres.2023.113322

Ziwei Meng, Dan Liu, Shuhui Li, Zhiyi Xu, Qianqian Deng, Yang Liu

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Abstract

Sesame is widely used as a nutritional supplement or condiment because of its nutritious properties and palatable flavor. However, the extensive use of pesticides in sesame fields has paradoxically decreased the nutritional vantage. The current study used QuEChERS with a low-temperature freezing method to develop a multi-residue analytical approach to detect target analytes (pesticides) in sesame seed, sesame oil, sesame paste, and sesame meal. The migration ability of target pesticides during oil processing was investigated using HPLC-MS/MS and GC-MS: 35% of pesticides decreased, with processing factors (PFs) lower than 0.98, whereas 65% migrated from the seed to the oil during processing. The migration success of methoxyfenozide was the highest, while clothianidin and pymetrozine demonstrated a significantly lower rate of transfer. The results provide insight into the types of pesticides that should be used in farming practices of sesame to decrease the impact on human health.

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芝麻中24类农药的快速多残留分析及其向加工产品中的迁移。

芝麻因其营养丰富、味道鲜美而被广泛用作营养补充剂或调味品。然而，杀虫剂在芝麻地的广泛使用却矛盾地降低了营养优势。本研究使用QuEChERS和低温冷冻法开发了一种多残留分析方法，用于检测芝麻、芝麻油、芝麻酱和芝麻粉中的目标分析物（农药）。利用HPLC-MS/MS和GC-MS研究了目标农药在油脂加工过程中的迁移能力：35%的农药在加工因子（PFs）低于0.98的情况下减少，而65%的农药在处理过程中从种子迁移到油脂中。甲氧基苯并咪唑的迁移成功率最高，而噻虫胺和吡美酮的迁移率明显较低。研究结果为减少对人类健康的影响，提供了芝麻种植实践中应使用的杀虫剂类型的见解。

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Food research international (Ottawa, Ont.)

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