表面活性剂对地衣芽孢杆菌B-1降解β-氯氰菊酯的影响  

Effect of surfactants on the degradation of β-cypermethrin by Bacillus licheniformis B-1

作　　者：刘芳芳[1] 迟原龙[1] 喻志强[1] 黄灏[2] 贾冬英[1] 姚开[1] 

机构地区：[1]四川大学轻纺与食品学院,成都610065 [2]成都大学师范学院,成都610106

出　　处：《食品科技》2015年第1期10-13,共4页Food Science and Technology

基　　金：国家自然科学基金项目(31371775);成都市科技攻关项目(11DXYB208NC)

摘　　要：以前期筛选的对β-氯氰菊酯(β-CY)具有较高降解能力的地衣芽孢杆菌B-1为目标菌株,考查了聚氧乙烯失水山梨醇单油酸酯(Tween-80)、聚氧乙烯月桂醚(Brij-35)、十二烷基硫酸钠(SDS)、十二烷基苯磺酸钠(SDBS)和β-环糊精对菌株生长、β-CY增溶作用和菌株降解β-CY的影响。结果显示:Tween-80、Brij-35和β-环糊精对菌株的生长基本无影响,SDS和SDBS对菌株的生长有明显的抑制作用;Tween-80和Brij-35对β-CY有较强的增溶作用;Brij-35可显著提高菌株对β-CY的降解率,当其含量为2.4 mg/m L时,β-CY降解率为89.42%,较空白提高46.95%。In this study, the Bacillus licheniformis B-1 with good degradation capacity on β-cypermethrin（β-CY） was used. Effect of Tween-80, Brij-35, SDS, SDBS and β-cyclodextrin on the strain growth, the β-CY dissolving capacity and the β-CY degradation by this strain were investigated. It was found that Tween-80, Brij-35 and β-cyclodextrin had rarely effects on the strain growth, and SDS and SDBS significantly inhibited the strain growth. β-CY could be well dissolved in the solution containing Tween-80 or Brij-35. Brij-35 could significantly improve the β-CY degradation, and when its content was 2.4 mg/m L, the β-CY degradation was 89.42%, which was 46.95% higher than that in black control.

关 键 词：β-氯氰菊酯 生物降解 地衣芽孢杆菌B-1 表面活性剂 

分 类 号：TS201.3[轻工技术与工程—食品科学]