Meng Ziwei, Liu Dan, Li Shuhui, Xu Zhiyi, Deng Qianqian, Liu Yang
Department of Applied Chemistry, College of Science, China Agricultural University, Yuanmingyuan West Road 2, Haidian District, Beijing 100193, PR China.
Food Res Int. 2023 Nov;173(Pt 1):113322. doi: 10.1016/j.foodres.2023.113322. Epub 2023 Jul 31.
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.
芝麻因其营养特性和可口风味而被广泛用作营养补充剂或调味品。然而，芝麻田大量使用农药却反常地降低了其营养价值。本研究采用低温冷冻的QuEChERS方法，开发了一种多残留分析方法，用于检测芝麻籽、芝麻油、芝麻酱和芝麻粕中的目标分析物（农药）。利用高效液相色谱-串联质谱法（HPLC-MS/MS）和气相色谱-质谱法（GC-MS）研究了目标农药在油脂加工过程中的迁移能力：35%的农药减少，加工因子（PFs）低于0.98，而65%的农药在加工过程中从种子迁移到了油中。甲氧虫酰肼的迁移成功率最高，而噻虫胺和吡蚜酮的转移率则显著较低。这些结果为芝麻种植实践中应使用的农药类型提供了见解，以减少对人类健康的影响。
