小麦网腥黑穗病菌微波处理技术研究  

Effect of Microwave Irradiation on Tilletia caries in Wheat

作　　者：刘涛[1] 李丽[1] 曲海霞[1] 王跃进[1] 

机构地区：[1]中国检验检疫科学研究院,北京100029

出　　处：《西南大学学报（自然科学版）》2011年第8期42-45,共4页Journal of Southwest University(Natural Science Edition)

基　　金：国家"十一五"科技支撑计划资助项目(2006BAD08A16)

摘　　要：该文系统测定了不同功率、不同时间组合的微波处理对小麦网腥黑穗病菌(Tilletia caries)的杀灭效果,并分析了微波处理对小麦品质的影响.毒力测定结果表明,800W处理30s,640W处理40s,480W处理50s,320W处理80s和160W处理180s这5种剂量,可完全杀灭小麦中的网腥黑穗病菌;温度检测结果表明,热效应是微波杀菌的主要因素,微波加热到90℃才能完全杀灭网腥黑穗病菌菌瘿;品质检测结果表明,上述条件的微波处理能显著降低小麦的含水率和发芽率,对千粒质量无影响,同时能显著提高小麦的还原糖和脂肪酸质量分数.上述结果表明微波处理在杀灭小麦网腥黑穗病菌菌瘿的同时能保持小麦的贮藏品质,因而在储粮检疫处理中极具应用前景.Microwave irradiation at different dosages against Tilletia caries was performed and its effects on the quality parameters of treated wheat were analyzed.Toxicity assay showed that T caries was completely killed after microwave treatments at the dosages of 800 W 30 s,640 W 40 s,480 W 50 s,320 W 80 s and 160 W 180 s.Temperature measurement indicated that 90 ℃ was necessary to achieve 100% mortality,suggesting that thermal effect was the dominant effect of microwave to control the fungus.Quality analysis showed that the moisture content and germination rate of the treated wheat seeds were greatly reduced,the contents of reducing sugar and free fatty acids were increased,and no significant change was detected in 1000-grain-weight.These results indicated that T.caries can be controlled by microwave irradiation with no adverse effects on wheat.

关 键 词：微波处理 网腥黑穗病菌 小麦品质 

分 类 号：S435.121.44[农业科学—农业昆虫与害虫防治]