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

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 (H...

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Published inToxics (Basel) Vol. 10; no. 8; p. 435
Main Authors Huang, Jiajian, Lin, Sukun, Zhou, Jingtong, Chen, Huiya, Tang, Shiqi, Wu, Jian, Huang, Suqing, Cheng, Dongmei, Zhang, Zhixiang
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 29.07.2022
MDPI
Subjects
Banana
Bananas
Chromatography
Contamination
Diet
Dietary intake
dietary risk assessment
Dissipation
dissipation dynamics
Distribution
Food intake
Fruits
Fungicides
Health aspects
Health risk assessment
High performance liquid chromatography
Liquid chromatography
Measurement
Methods
Molecular weight
Plant diseases
Prochloraz
Pulp
Residues
Risk assessment
China
Japan
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Summary: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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These authors contributed equally to this work.
ISSN:2305-6304
2305-6304
DOI:10.3390/toxics10080435