Structures of Reaction Products and Degradation Pathways of Aflatoxin B by Ultrasound Treatment.

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ID: 59132
2019
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Abstract
Ultrasound is an emerging decontamination technology with potential use in the global food processing industry. In the present study, we explored power ultrasound for processing aqueous aflatoxin B (AFB). AFB was degraded by 85.1% after 80 min of ultrasound exposure. The reaction products of AFB were identified and their molecular formulae elucidated by ultra-high-performance liquid chromatography Q-Orbitrap mass spectrometry. Eight main reaction products were found, and their structures were clarified by parental ion fragmentation. Two degradation pathways were proposed according to the degradation product structures: One involved the addition of H• and OH• radicals, whereas the other involved HO epoxidation and H•, OH•, and HO oxidation of AFB. Ultrasound treatment significantly reduced AFB bioactivity and toxicity by disrupting the C8=C9 double bond in the furan ring and modifying the lactone ring and methoxy group.
Reference Key
liu2019structurestoxins Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Liu, Yuanfang;Li, Mengmeng;Liu, Yuanxiao;Bian, Ke;
Journal Toxins
Year 2019
DOI
E526
URL
Keywords
aflatoxin b1 uhplc-orbitrap-ms reaction products ultrasound treatment epss (electric power steering system) tas module multi-track encoder self-driving car steering angle sensor adsorption sugarcane bagasse methylene blue wastewater sustainable

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