PMID- 29656529 OWN - NLM STAT- MEDLINE DCOM- 20181015 LR - 20181015 IS - 1097-0010 (Electronic) IS - 0022-5142 (Linking) VI - 98 IP - 14 DP - 2018 Nov TI - Residue transfer and risk assessment of carbendazim in tea. PG - 5329-5334 LID - 10.1002/jsfa.9072 [doi] AB - BACKGROUND: Carbendazim (methyl 1H-benzimidazol-2-ylcarbamate) residue in tea is a public concern. The large gap in the maximum residue limits (MRLs) for carbendazim in tea makes it difficult to conduct pesticide management. Therefore, a systemic evaluation of the residue and the health risk of carbendazim from the tea garden to brewed tea was investigated. RESULTS: The dissipation of carbendazim in tea shoots followed first-order rate kinetics, with a half-life (t(1/2) ) of 2.6 days. In green tea manufacturing, the carbendazim decrease of 2.81-26.74% was concentration-positive. The infusion factor of carbendazim was > 0.8 from dry tea to brewed tea and this was related to the brewing temperature and the size of the dry tea. All of the risk quotient values were significantly less than 1 in the evaluation of carbendazim residue in real tea samples and MRL. CONCLUSION: Residue transfer and risk assessment were evaluated for carbendazim in green tea. Carbendazim revealed a less persistent nature in tea plants. Green tea processing played a small role in decreasing carbendazim residue. Almost all of the carbendazim in dry tea leached into the brewed tea. However, the possible health risk induced by residual carbendazim in green tea was not significant. These findings are helpful when reconsidering the MRLs of carbendazim in tea. (c) 2018 Society of Chemical Industry. CI - (c) 2018 Society of Chemical Industry. FAU - Zhou, Li AU - Zhou L AD - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China. AD - Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agricultural, Hangzhou, China. FAU - Jiang, Yaping AU - Jiang Y AD - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China. AD - Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agricultural, Hangzhou, China. FAU - Lin, Qin AU - Lin Q AD - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China. AD - Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agricultural, Hangzhou, China. FAU - Wang, Xuan AU - Wang X AD - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China. AD - Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agricultural, Hangzhou, China. FAU - Zhang, Xinzhong AU - Zhang X AD - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China. AD - Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agricultural, Hangzhou, China. FAU - Xu, Jie AU - Xu J AD - School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, China. FAU - Chen, Zongmao AU - Chen Z AUID- ORCID: 0000-0003-2242-0113 AD - Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China. AD - Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agricultural, Hangzhou, China. LA - eng GR - LQ15B070002/Zhejiang Provincial Natural Science Foundation/ GR - LY18C16005/Zhejiang Provincial Natural Science Foundation/ GR - 2016YFD0200207/National Key Research and Development Program/ GR - 2015C12001/Science and Technology Major Project in Zhejiang Province/ GR - 21307156/National Natural Science Foundation of China/ PT - Journal Article DEP - 20180614 PL - England TA - J Sci Food Agric JT - Journal of the science of food and agriculture JID - 0376334 RN - 0 (Benzimidazoles) RN - 0 (Carbamates) RN - 0 (Pesticide Residues) RN - 0 (Tea) RN - H75J14AA89 (carbendazim) SB - IM MH - Benzimidazoles/*analysis MH - Camellia sinensis/*chemistry MH - Carbamates/*analysis MH - Food Contamination/*analysis MH - Pesticide Residues/*analysis MH - Risk Assessment MH - Tea/*chemistry OTO - NOTNLM OT - carbendazim OT - green tea OT - residue OT - risk assessment OT - transfer EDAT- 2018/04/16 06:00 MHDA- 2018/10/16 06:00 CRDT- 2018/04/16 06:00 PHST- 2018/01/10 00:00 [received] PHST- 2018/03/29 00:00 [revised] PHST- 2018/04/03 00:00 [accepted] PHST- 2018/04/16 06:00 [pubmed] PHST- 2018/10/16 06:00 [medline] PHST- 2018/04/16 06:00 [entrez] AID - 10.1002/jsfa.9072 [doi] PST - ppublish SO - J Sci Food Agric. 2018 Nov;98(14):5329-5334. doi: 10.1002/jsfa.9072. Epub 2018 Jun 14.