Irradiation degradation processing method of fungaltoxin

Abstract

The invention relates to an irradiation degradation processing method of fungaltoxin. The method comprises the following steps: (1) a fungaltoxin standard substance is prepared into a standard solution; the standard solution is subjected to the irradiation processing with the irradiation range of 0-200 kGy; the content of the fungaltoxin is measured through a liquid chromatogram-tandem mass spectrometry; (2) a toxic sample is subjected to the preprocessing after the irradiation with the irradiation range of 0-9 kGy; the degradation effect of the fungaltoxin is measured through the liquid chromatogram-tandem mass spectrometry; (3) the fungaltoxin standard solution with the highest concentration is selected as a sample; after the selected sample is subjected to the irradiation with the irradiation range of 0-200 kGy, a degradation product is subjected to detection analysis through the liquid chromatogram-tandem mass spectrometry. Through the adoption of the irradiation degradation processing method of the fungaltoxin, the research and environmental protection application of the fungaltoxin degradation product lacking the irradiation degradation are solved, good degradation effect is achieved, and the environmental-friendly detoxification processing for mildewed agricultural product wastes is achieved.

Description

technical field [0001] The invention belongs to the field of analytical chemistry, and in particular relates to a method for irradiating and degrading mycotoxins. Background technique [0002] Mycotoxins are toxic metabolites produced by toxin-producing fungi under suitable environmental conditions. Current research focuses on aflatoxins, ochratoxins, fumonisins and trichothecenes, which are particularly harmful to humans and have high pollution frequencies. Mycotoxin deoxynivalenol, T-2 toxin, etc. Mycotoxins are naturally occurring toxins that are commonly found in agricultural products such as corn, wheat, barley, rice, oats, sorghum, condiments, nuts, dairy products, and feed, which seriously affect the yield of crops, reduce the quality of agricultural products, and cause huge economic losses . According to the report of the Food and Agriculture Organization of the United Nations (FAO), about 25% of the crops in the world are polluted by fungi and toxins every year, a...

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Problems solved by technology

[0005] Existing related technologies include: Zhang Xichun et al. reported that the irradiation dose of 3kGy~5kGy has a more obvious effect on the degradation of mold and mycotoxins; The degradation rate can reach more than 80% at 4kGy, 96% at 6kGy, and more than 90% at 10kGy of 0.1mg / L fumonisin B1 solution; Yin Qinggang's research results show that when the irradiation dose is 18kGy , the degradation rate of zearalenone in powdered corn can reach 74.9%. When the irradiation dose is 10kGy, the degradation rate of zearalenone in whole corn can reach 94.1%. When the irradiation dose is 5kGy, 30.0mg The degradation rate of zearalenone / kg zearalenone aqueous solution reached 90%; Chi Lei et al. published a paper on the degradation of ochratoxin A by gamma rays, which mentioned the method of structural analysis of degradation products and the possible mechanism of degradation , but no degradation products were reported

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