花椒精油抑制赤拟谷盗虫卵孵化作用的研究  

Study on the Incubation Inhibition of Pepper Essential Oils on Tribolium Eggs

作　　者：赵雪娜[1] 王建清[1] 

机构地区：[1]天津科技大学包装与印刷工程学院,天津300222

出　　处：《中国粮油学报》2013年第1期82-87,共6页Journal of the Chinese Cereals and Oils Association

基　　金：国家科技支撑计划(2011BAD24B01)

摘　　要：研究花椒精油抑制谷物及山货干品中危害甚大的赤拟谷盗虫卵的孵化,以延长商品货架寿命。采用水蒸气蒸馏法从东北青花椒、江津青花椒、汉源红花椒和韩城红花椒中提取精油,用GC-MS方法分析精油中的主要成分。在30℃恒温条件下通过触杀和熏蒸试验,筛选出对赤拟谷盗虫卵的孵化抑制和杀虫效果最佳的品种,确定其致死中浓度LC50和致死中时间LT50。结果表明:4种精油的提取率分别为7.2%、5.1%、4.6%、2.0%,精油中含量比较高的成分有芳樟醇、柠檬烯、α-蒎烯等,东北青花椒精油中芳樟醇含量最高;从触杀和熏蒸效果来看,东北青花椒精油的抑制孵化效果也是最佳的,致死中浓度LC50均低于其他3种花椒,对虫卵熏蒸24、48和72 h的LC50分别为34.82、29.28和16.48μL/L,精油熏蒸浓度分别为30、40和50μL/L时,致死中时间LT50分别为45.11、29.41和12.98 h。The incubation inhibition of pepper essential oils on Tribolium eggs which endanger cereals and sundries dry goods most was researched to extend their shelf life. Four pepper essential oils which were produced from northeast, Jianjin, Hanyuan, Hancheng were extracted by steam distillation. The chemical composition of the essential oils was assessed via GC - MS. The variety owning the best inhibitory effect on Tribolium eggs hatching was filtered by tag experiments and fumigation experiments at 30 ℃. The insecticidal effect of the best oil was further studied, and determine the LCs0 and LTs0. The results showed that： The extraction rate of the four essential oils was respectively 7.2% ,5.1% ,4.6% ,and 2.0% ; linalool,limonene,alpha -pinene were determined to be the major constituents of the oils ; the oil from northeast has more content of linalool than the other three oils, and has the best inhibitory effect on Tribolium eggs hatching. The LC50 of 24 h,48 h and 72 h fumigation were 34.82 μL/L,29.28 μL/L and 16.48μL/L respectively. The LT50 of 30μL/L,40 μL/L and 50 μL/L were 45.11h,29.41 h and 12.98 h respectively.

关 键 词：花椒精油 赤拟谷盗 熏蒸 

分 类 号：S482.39[农业科学—农药学]