利用化学方法制取高效灭蚊浓缩乳液的研究

首次采用化学方法将B.S.发酵液进行浓缩、乳化、防腐等处理,制备具有高效灭蚊活性的o/w型B.S.防腐浓缩乳液。在短时间内将B.S.发酵液浓缩分离去除75％的水分,而细菌生物活性损失1％以下,同时具有良好的分散和防腐特性。具有减少设备投资,节省能耗,细菌生物活性损失低等优点。

STUDY ON THE METHODS OF PREPARATION OF HIGHLY EFFECTIVE EMULSION OF LARVICIDE FROM B. S. FERMENTATIVE LIQUID

This study reports the chemical methods to prepare highly effective emulsion of larvi-cide. The preparative processes containe some treatments, such as concentration, emulsion and preservative. The losing rate of bacterial activity in emulsified liquid is less than 1%. The larvicide treated with these chemical methods has better characteristic of despersal and antisepsis. Compare with machinery methods, these methods have advantages of lowering loss of bacterical' activity, saving energy and reducing expenses of equipments.