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Efficiency and safety evaluation of photodegradation of A flatoxin B 1 on peanut surface
Author(s) -
Chang Ming,
Jin Qingzhe,
Liu Yuanfa,
Liu Ruijie,
Wang Xingguo
Publication year - 2013
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/ijfs.12238
Subject(s) - photodegradation , chemistry , irradiation , cytotoxicity , food science , toxicity , in vitro , nuclear chemistry , biochemistry , photocatalysis , organic chemistry , physics , nuclear physics , catalysis
Summary A photodegradation study of A flatoxin B 1 ( AFB 1 ) on peanut surface was performed under UV irradiation at different UV irradiation intensities. With an initial quantity of 10 ng of AFB 1, it can be degraded thoroughly within 80 min under the intensity of 800 μw cm −2 . The photodegradation pathway of AFB 1 on the peanut surface was proposed. Mutagenesis and cytotoxicity were assessed after exposure to different concentrations of AFB 1 and the mixtures of photodegradation products on the peanut surface. The results of the Ames and in vitro cytotoxicity assay, providing clues to the assessment of safety issues of UV method applied in AFB 1 decontamination, indicate that photodegradation products on the peanut surface has no toxicity, which can be explained by the differences in the chemical nature of the test compounds before and after UV irradiation.