Degradation of Aflatoxin B1 in Peanut Oil by Ultraviolet-LED Cold-Light Irradiation and Structure Elucidation of the Degradation Products
文献类型： 外文期刊
作者： Wang, Hai -Bo 1 ; Mo, Zi-Mei 1 ; Yuan, Guang-Wei 1 ; Dai, Xiang-Dong 1 ; Zhou, Song -Yu 1 ; Khoo, Hock Eng 2 ; Li, Changbao 3 ;
作者机构： 1.Guangxi ASEAN Food Inspection Ctr, 42 Fo Zi Ling Rd, Nanning 530029, Peoples R China
2.Guilin Univ Technol, Coll Chem & Bioengn, Guilin 541006, Peoples R China
3.Guangxi Acad Agr Sci, Agrofood Sci & Technol Res Inst, Nanning 530007, Peoples R China
关键词： contamination; light-emitting diode; mycotoxins; secondary metabolites; total ion chromatography
期刊名称：JOURNAL OF OLEO SCIENCE （ 影响因子：1.5； 五年影响因子：1.7 ）
ISSN： 1345-8957
年卷期： 2023 年 72 卷 4 期
页码：
收录情况： SCI
摘要： This study aimed to determine the efficiency of ultraviolet (UV)-LED cold light treatment on the degradation of aflatoxin (AF)B1 in peanut oils. The peanut oil samples obtained from different places in China and abroad were determined for AFB1 degradation efficiency of the UV-LED cold-light irradiation method. The degradation products were analyzed by ultra-high performance liquid chromatography coupled to quadrupole orbitrap high-resolution mass spectrometry (UPLC-Q-Exactive MS). The results indicated that the AFB1 content in all peanut oil samples decreased rapidly after 5 min of irradiation. Four main photodegradation products (C18H16O7, C17H14O7, C17H14O7, and C17H14O8) were identified using the established LC-MS method. Their chemical structures were postulated based on the LC-MS data. Also, the degradation pathways were proposed based on the data obtained. Oxidation and reduction reactions were mainly responsible for AFB1 decomposition. The reactions occurred at the furan and lactone rings. These findings demonstrated that UV-LED cold-light irradiation was an effective method for treating AFB1-contaminated peanut oil.
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