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| 生物农药印楝素的热稳定性研究 | |
| 引用本文： | 王秋芬,宋湛谦,闫新华.生物农药印楝素的热稳定性研究[J].河南农业科学,2004(5):37-40. |
| 作者姓名： | 王秋芬 宋湛谦 闫新华 |
| 作者单位： | 1. 中国林业科学院林产化学工业研究所,江苏,南京,210042;济南大学化学化工学院 2. 中国林业科学院林产化学工业研究所,江苏,南京,210042 3. 山东华阳科技股份有限公司 |
| 基金项目： | 中国林科院资源昆虫培育与利用重点实验室资助项目 (2 0 0 2 - 1 ) |
| 摘 要： | 研究了水分、黄曲霉、溶剂、乳化剂、稳定剂等因素对印楝素热稳定性的影响 ,结果表明 :除去水分、黄曲霉后的固体印楝素稳定性有明显改善 ,印楝素在各种溶剂中的稳定性为 :二甲苯 -乙腈 ( 2∶1 )≈二甲苯 -乙酸乙酯 ( 2∶1 ) >二甲亚砜 >乙腈 >乙酸乙酯 >丙酮 >甲醇≈乙醇 ;各种乳化剂的存在加速印楝素的分解 ,其中热分解速度 :十二烷基苯磺酸钠 >吐温 - 80 >CH1 0 0 >吐温 - 2 0≈CH40 0 ;加入热稳定剂后能明显改善印楝素的稳定效果 ,其中环氧化豆油的稳定效果较好 |
| 关 键 词： | 生物农药 印楝素 热稳定性 热稳定剂 |
| 文章编号： | 1004-3268(2004)05-0037-04 |
| 修稿时间： | 2004年1月6日 |
Studies on Thermal Stability of Biologic Pesticide Azadirachtin |
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| WANG Qiu fen ,SONG Zhan qian ,YAN Xin hua.Studies on Thermal Stability of Biologic Pesticide Azadirachtin[J].Journal of Henan Agricultural Sciences,2004(5):37-40. | |
| Authors: | WANG Qiu fen SONG Zhan qian YAN Xin hua |
| Institution: | WANG Qiu fen 1,2,SONG Zhan qian 1,YAN Xin hua 3 |
| Abstract: | Effect of moisture,aflatoxin,solvents,emulsifier and thermal stabilizers on thermal stability of azadirachtin was investigated. It was found that thermal stability of solid azadirachtin has been obviously improved by removal of moisture and aflatoxin. The order of azadirachtin thermal stability in different solvents was as follow:Xylene acetonitrile (2:1) ≈ xylene ethyl acetate (2∶1) >DMSO >acetonitrile >ethyl acetate >acetone> methanol ≈ethanol. All kinds of emulsifier enhanced the rate of thermal degradation of azadirachtin in solution. The rate of thermal degradation was as:LAS >Teween-80 >CH 100 >Teween-20 ≈ CH 400 . The thermal stability of azadirachtin was enhanced by addition thermal stabilizers in solution. It was found that epoxideized soybean oil was the best thermal stabilizers. |
| Keywords: | Biologic pesticide Azadirachtin Thermal stability Thermal stabilizers |
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