为了进行科学实验,苏云金杆菌(Bacillus thurin-giensis var.sotto)纯净结晶悬浮液的制备是必要的,如用以测定制剂的生化性质,或用以测定制剂对各种害虫的毒效等。结晶体的收集方法已有人报导过,但这些方法包括细致而耗费时间的处理手续。每一制备步骤丧失的大量结晶会造成总产量的降低。最近奥古斯氏发表一种利用洗涤剂“Genetron”清除孢子 For scientific experiments, preparation of a pure crystalline suspension of Bacillus thurin-giensis var. Sotto is necessary, for example to determine the biochemical properties of the formulation or to determine its efficacy against various pests. Methods of collecting crystals have been reported, but these methods include careful and time-consuming procedures. The large amount of crystallization lost at each preparation step can result in a decrease in the overall yield. Recently Augustus published a purge of spores using detergent “Genetron”