辐射降解脱氧雪腐镰刀菌烯醇(DON)的研究

Effects of Irradiation on Degradation of Deoxynivalenol in Aqueous Solution

以60Co-γ射线辐照处理脱氧雪腐镰刀菌烯醇(DON)溶液,并采用高效液相色谱法进行DON含量测定,研究γ射线辐照是否能降解溶液中的DON毒素。研究结果表明:高效液相色谱法可以很好的对DON进行定量,最低检测线为0.01μg/mL。60Co-γ射线辐照对DON降解效果显著,剂量为10 kGy时即可使0.5μg/mL DON溶液的降解率达到90%以上。初始浓度对DON降解率有影响,浓度越高,达到一定降解率所需的辐照剂量越大。

Deoxynivalenol in aqueous solution was irradiated by 6~Co ~/-rays, and high performance liquid chromatography was used to investigate the content of DON to investigate the effects of absorbed doses on the degradation of deoxynivalenol in aqueous solution. The results showed that HPLC can investigate the DON well and the detection limit was 0.01 μg/mL. 660Co-γ rays had good effect on the degradation of deoxynivalenol in aqueous solution, at dose of 10 kGy, 0.5 μg/mL of DON degradation rate of the solution reached more than 90 %. The initial concentration of DON can affect the degradation rate, the higher concentration, to achieve certain degradation rate required the greater irradiation dose