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Moderate elimination of mycotoxins in vegetable oil triggered by superoxide anion and singlet oxygen

文献类型： 外文期刊

作者： Yang, Xianglong 1 ; Cheng, Ling 1 ; Yu, Li 1 ; Qi, Xin 1 ; Zhang, Liangxiao 1 ; Zhang, Qi 1 ; Mao, Jin 1 ; Li, Peiwu 1 ;

作者机构： 1.Chinese Acad Agr Sci, Oil Crops Res Inst,Minist Agr & Rural Affairs, Key Lab Detect Mycotoxins,Qual Inspect & Test Ctr, Natl Reference Lab Agr Testing Biotoxin,Lab Qual &, Wuhan 430062, Peoples R China

2.Hubei Hongshan Lab, Wuhan 430070, Peoples R China

关键词： Mycotoxins; Reactive oxygen species; Photodegradation; Bi2WO6

期刊名称：FOOD CHEMISTRY （ 影响因子：8.5； 五年影响因子：8.2 ）

ISSN： 0308-8146

年卷期： 2024 年 456 卷

页码：

收录情况： SCI

摘要： Establishing a moderate elimination strategy for mycotoxins with the maintained food nutrition is significant to food safety. Herein, the Au-NPs decorated defective Bi2WO6 (Au-BWO-OV) with modulated ROS generation was successfully synthesized, integrating the merits of defect-engineering and Au-NPs induced LSPR-effect. The Au-BWO-OV exhibited modified photoelectrochemical property and O(2)(-)adsorption capacity, supporting the selective generation of center dot O-2(-) and O-1(2) with moderate oxidizing ability. As a result, >90% of AFB1 and ZEN were eliminated within 100 and 50 min, along with the maintained nutrition in vegetable oil. Moreover, the reasonable degradation mechanism triggered by center dot O-2(-) and O-1(2) was proposed based on the trapping experiments, DFT calculations and LC-MS analysis for intermediate products, including the steps of hydrolysis, oxidative dissociation, cis-trans isomerization, and dehydroxylation. This work not only paved the way for balancing the contradiction between detoxification and nutrient retention, but also casted new insights into the ROS-mediated degradation mechanism.

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