Transfer Behavior and Dietary Risk Assessment of Afidopyropen and Its Metabolite M440I007 in Jasmine Flowers During Cultivation, Processing and Brewing

CHEN Yixing; LAN Tianmeng; QIAN Kexin; GUO Mingming; LIANG Chizhou; ZHOU Li; LUO Fengjian

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Journal of Tea Science ›› 2026, Vol. 46 ›› Issue (3) : 424-434.

Transfer Behavior and Dietary Risk Assessment of Afidopyropen and Its Metabolite M440I007 in Jasmine Flowers During Cultivation, Processing and Brewing

CHEN Yixing^1,2, LAN Tianmeng^1,3, QIAN Kexin^1,2, GUO Mingming^1,2, LIANG Chizhou⁴, ZHOU Li^1,*, LUO Fengjian^1,*

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Abstract

Afidopyropen is a novel biogenic insecticide with broad application prospects due to its low toxicity and high safety to non-target organisms. To evaluate the safety of afidopyropen use on jasmine flowers, the raw material for jasmine tea, this study investigated the residual behavior of afidopyropen and its metabolite M440I007 during the cultivation, processing, and brewing of jasmine flowers. The dissipation of afidopyropen on jasmine flowers in the field followed first-order kinetic, with a half-life of only 0.5 d, leading to the formation of metabolite M440I007. Both afidopyropen and M440I007 showed concentration effects during the direct drying process of fresh jasmine flowers into dried jasmine, with processing factors of 5.07-6.83 and 4.19-6.82, respectively. In the scenting-drying process, afidopyropen and M440I007 also showed an enrichment trend, with processing factors of 4.55 and 6.79, respectively. The residue level of afidopyropen in the scenting-dried sample (0.038 mg·kg^-1) was lower than that in concurrently direct-dried jasmine sample (0.057 mg·kg^-1), indicating the migration of the parent pesticide from the flowers to the tea substrate during the scenting process. The total leaching rate of afidopyropen during the brewing of dried jasmine flower was 28.5%-55.8%, with first, second and third infusion leaching rates of 16.0%-33.2%, 8.1%-16.0% and 4.4%-9.3%, respectively. Dietary risk assessment indicated that the chronic risk quotient (RQc) and acute risk quotient (RQa) for afidopyropen and M440I007 in the scenario of consuming jasmine infusion were 0.008% and 0.005%, respectively, demonstrating an acceptable level of dietary risk.

Key words

afidopyropen / jasmine flower / pesticide residue / scenting / brewing

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CHEN Yixing, LAN Tianmeng, QIAN Kexin, GUO Mingming, LIANG Chizhou, ZHOU Li, LUO Fengjian. Transfer Behavior and Dietary Risk Assessment of Afidopyropen and Its Metabolite M440I007 in Jasmine Flowers During Cultivation, Processing and Brewing[J]. Journal of Tea Science. 2026, 46(3): 424-434

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