Implementing the fermentation in a 30 L B.Braun fermentor by constant feeding 1.0 g/dL glucose at exponential phase, the concentration of ICPs and the titer could be enhanced by 37% and 51%, respectively.

• 30 L发酵罐补糖实验结果表明:在起始碳源质量浓度为3 0 g/dL的情况下,对数生长期补加1 0 g/dL葡萄糖可以将发酵液中杀虫晶体蛋白的质量分数和生物效价分别提高37%25和51%25;