辐照处理对柄曲霉素的降解效果研究

赵亚荣; 王琼珊; 王旭; 刘香香; 王富华

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DOI:10.12161/j.issn.1005-6521.2020.14.006

食品研究与开发:2020,41(14):34-37

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辐照处理对柄曲霉素的降解效果研究

赵亚荣，王琼珊，王旭，刘香香，王富华^1,2,3

(1.广东省农业科学院农产品公共监测中心，广东广州510640;2.农业部农产品质量安全检测与评价重点实验室，广东广州 510640;3.广东食品药品职业学院，广东广州510520)

Study on Degradation Effect of Irradiation on Sterigmatocystin

ZHAO Ya-rong，WANG Qiong-shan，WANG Xu，LIU Xiang-xiang，WANG Fu-hua^1,2,3

(1.Public Monitoring Center for Agro-product of Guangdong Academy of Agricultural Sciences，Guangzhou 510640，Guangdong，China;2.Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality，Guangzhou 510640，Guangdong，China;3.Guangdong Food and Drug Vocational College，Guangzhou 510520，Guangdong，China)

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投稿时间：2019-07-18

中文摘要: 采用不同剂量（0、3、6、9、12、15 kGy）60Co-γ 射线对柄曲霉素（sterigmatocystin，STC）溶液进行辐照处理，研究辐照剂量、不同溶剂以及不同初始浓度对柄曲霉素辐照降解效果的影响。结果表明：60Co-γ射线可有效降解溶液中的柄曲霉素，且降解率随着辐照剂量的增大而增加。当辐照剂量为3 kGy时，STC的降解速率依次为水＞氯仿＞乙腈＞甲醇。当辐射剂量大于6 kGy时，水、乙腈和氯仿中STC的降解率相近，且甲醇中STC降解率也相对增加。在同一辐照剂量下，柄曲霉素的初始浓度越低，其降解率越高。

中文关键词: 辐照柄曲霉素 60Co-γ射线降解高效液相色谱-串联质谱

Abstract:Inthisstudy，thesolutionsofsterigmatocystin（STC）wereirradiatedbydifferentdoses（0，3，6，9，12，15 kGy）60Co-γray radiation.The effects of irradiation dose，different solvents，initial concentrations on STC were investigated.The results showed that STC could be effectively degraded by60Co-γray and the degradation rate increased with the increase of irradiation dose.The STC degradation rate was in the order of water＞chloroform＞acetonitrile＞methanol when the irradiation dose was 3 kGy.Degradation rate in methanol was increased relatively and similar in water，acetonitrile and chloroform at the irradiation dose of greater than 6 kGy.At the same irradiation dose，the degradation rate was higher along with lower initial concentrations of STC.

keywords: irradiation sterigmatocystin 60Co-γ ray degradation high performance liquid chromatographytandem mass spectrometry

文章编号：202014006 中图分类号： 文献标志码：

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作者	单位
赵亚荣，王琼珊，王旭，刘香香，王富华	广东省农业科学院农产品公共监测中心，广东广州510640；农业部农产品质量安全检测与评价重点实验室，广东广州 510640；广东食品药品职业学院，广东广州510520

Author Name	Affiliation
ZHAO Ya-rong，WANG Qiong-shan，WANG Xu，LIU Xiang-xiang，WANG Fu-hua	Public Monitoring Center for Agro-product of Guangdong Academy of Agricultural Sciences，Guangzhou 510640，Guangdong，China；Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality，Guangzhou 510640，Guangdong，China；Guangdong Food and Drug Vocational College，Guangzhou 510520，Guangdong，China

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