食品科学 ›› 2011, Vol. 32 ›› Issue (11): 21-24.doi: 10.7506/spkx1002-6630-201111005

• 基础研究 • 上一篇    下一篇

玉米中赭曲霉毒素A 的辐照降解效果

迟 蕾,哈益明*,王 锋,薛晓峰   

  1. 1.中国农业科学院农产品加工研究所 2.中国农业科学院蜜蜂研究所
  • 出版日期:2011-06-15 发布日期:2011-05-13
  • 基金资助:
    农业部核技术公益项目(200803034)

Effect of Irradiation on Degradation of Ochratoxin A in Maize

CHI Lei1,HA Yi-ming1,*,WANG Feng1,XUE Xiao-feng2   

  1. 1. Institute of Agro-food Science and Technology, Chinese Academy of Agricutural Sciences, Beijing 100193, China; 2. Bee Research Institute, Chinese Academy of Agricutural Sciences, Beijing 100093, China
  • Online:2011-06-15 Published:2011-05-13

摘要: 目的:探讨γ射线对于玉米中赭曲霉毒素A的辐照降解效果。方法:以受赭曲霉毒素A污染的玉米为研究对象,采用高效液相色谱分析方法定量检测赭曲霉毒素A,比较不同剂量γ射线辐照处理的赭曲霉毒素A的降解率,评价辐照处理后玉米的营养组份。结果:玉米中赭曲霉毒素A经过辐照后,含量明显降低,在10kGy的辐照剂量下,降解率可达50%;经过辐照后玉米的营养组分没有明显变化。结论:辐照能够降解玉米中赭曲霉毒素A,且不会降低玉米品质。

关键词: 玉米, 辐照降解, 赭曲霉毒素A, 品质

Abstract: Objective: To explore the effect of γ-irradiation on the degradation of Ochratoxin A in maize. Methods: Maize samples contaminated with ochratoxin A were irradiated by 60Co-γ ray initially at different doses, then ochratoxin A in samples was analyzed by HPLC and nutritional components were also determined. Results: The content of ochratoxin A in maize exhibited a significant decrease, and the degradation rate of ochratoxin A could reach up to 50% at the dose of 10 kGy. The nutritional components were not destroyed by γ-irradiation. Conclusion: γ-Irradiation can degrade ochratoxin A in maize without decreasing the quality of maize.

Key words: maize, γ-irradiation degradation, ochratoxin A, quality

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