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Photodegradation of Aflatoxin B1 in peanut oil

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Abstract

A photodegradation study of aflatoxin B1 (AFB1) in peanut oil was performed under UV irradiation at different AFB1 initial concentrations and UV irradiation intensities. The UV intensity and the irradiation duration on the AFB1 photodegradation ratio is more effective, when compared with AFB1 initial concentration, and AFB1 with initial concentration of 2 mg/kg can be degraded thoroughly within 30 min under the intensity of 800 μw/cm2. The photodegradation of AFB1 between the selected ranges of concentrations was proved to follow first-order reaction kinetics well (R 2 ≥ 0.99). The Ames test, employing Salmonella typhimurium tester strains TA98 and TA100, was employed to evaluate the residual toxicity of the AFB1 subproducts in peanut oil, and the results indicated that the mutagenic activity of UV-treated samples (800 μw/cm2 × 30 min) was completely lost compared with that of untreated samples, providing clues to the assessment of safety issues of UV method applied in AFB1 decontamination.

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Abbreviations

AFB1 :

Aflatoxin B1

IARC:

International Agency for Research on Cancer

DMSO:

Dimethyl sulfoxide

UPLC-Q-TOF MS:

Ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry

ANOVA:

Analysis of variance

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Acknowledgments

The work is supported by the National High Technology Research and Development Program (863 Program) of China (Contract No: 2010AA101505/6).

Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. State Key Laboratory of Food Science and Safety, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu Province, People’s Republic of China

    Ruijie Liu, Qingzhe Jin, Jianhua Huang, Yuanfa Liu & Xingguo Wang

  2. Shandong Luhua Group Co., Ltd, 39 Longmen East Road, Laiyang, 265200, Shandong Province, People’s Republic of China

    Wenyue Mao & Shanshan Wang

Authors
  1. Ruijie Liu
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  2. Qingzhe Jin
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  3. Jianhua Huang
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  4. Yuanfa Liu
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  5. Xingguo Wang
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  6. Wenyue Mao
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  7. Shanshan Wang
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Correspondence to Xingguo Wang.

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Liu, R., Jin, Q., Huang, J. et al. Photodegradation of Aflatoxin B1 in peanut oil. Eur Food Res Technol 232, 843–849 (2011). https://doi.org/10.1007/s00217-011-1452-6

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  • DOI: https://doi.org/10.1007/s00217-011-1452-6

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