Dissipation and Distribution of Prochloraz in Bananas and a Risk Assessment of Its Dietary Intake

Autor: Jiajian Huang, Sukun Lin, Jingtong Zhou, Huiya Chen, Shiqi Tang, Jian Wu, Suqing Huang, Dongmei Cheng, Zhixiang Zhang
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Toxics, Vol 10, Iss 8, p 435 (2022)
Druh dokumentu: article
ISSN: 2305-6304
DOI: 10.3390/toxics10080435
Popis: Background: As a systematic fungicide, prochloraz is often used to control banana freckle disease, and it is significant to assess the safety and risk of prochloraz. Methods: The dissipation kinetics and distribution of prochloraz in bananas were measured by high-performance liquid chromatography (HPLC). Results: The results showed that the fortified recoveries in bananas were 83.01–99.12%, and the relative standard deviations (RSDs) were 2.45–7.84%. The half-life of prochloraz in banana peel (3.93–5.60 d) was significantly lower than it was in whole banana (8.25–10.80 d) and banana pulp (10.35–12.84 d). The terminal residue of prochloraz in banana fruits was below the maximum residue level (MRL, China) at pre-harvest intervals (PHI) of 21 d. Moreover, the residue of prochloraz in banana peel was always 1.06–7.71 times greater than it was in banana pulp. The dietary risk assessment results indicated that the prochloraz residue in bananas at PHI of 21 d was safe for representative populations. (4) Conclusions: We found that a 26.7% prochloraz emulsion oil in water (EW) diluted 1000-fold and sprayed three times under field conditions was safe and reliable, providing a reference for the safe application of prochloraz in bananas.
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