Biotransformation of carbendazim in cowpea pickling process.

Yushen Jin, Yan Qi, Mengdie Fan, Jing Zhang, Biao Kong, Bing Shao

Food chemistry 2023 Jul 30

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Carbendazim, a systemic fungicide, is one of the most commonly detected pesticides in cowpeas. Pickled cowpea is a fermented vegetable product with unique flavor favored in China. The dissipation and degradation of carbendazim were investigated in the pickled process. The degradation rate constant of carbendazim in pickled cowpeas was 0.9945 and the half-life of the carbendazim was 14.06 ± 0.82 d. Seven transformation products (TPs) were identified in the pickled process. Furthermore, the toxicity of some TPs show more harmful to three aquatic organisms (TP134) and rats (all the identified TPs) than carbendazim. And most of the TPs posed more development toxicity and mutagenicity than carbendazim. 4 out of 7 TPs were discovered in the real pickled cowpea samples. These results shed light on the degradation and biotransformation of the carbendazim in the pickled process, to better understand the potential health risk of pickled food and evaluate the environmental pollution. Copyright © 2023 Elsevier Ltd. All rights reserved.

Citation

Yushen Jin, Yan Qi, Mengdie Fan, Jing Zhang, Biao Kong, Bing Shao. Biotransformation of carbendazim in cowpea pickling process. Food chemistry. 2023 Jul 30;415:135766