Method for microbial cell killing
    1.
    发明授权
    Method for microbial cell killing 失效
    微生物细胞杀伤方法

    公开(公告)号:US4966844A

    公开(公告)日:1990-10-30

    申请号:US771883

    申请日:1985-09-03

    IPC分类号: C07K14/55 C12N1/00 C12P1/00

    摘要: In processes for recovery of biologically active polypeptides from fermentation cultures of recombinant host organisms, cell death is frequently a prerequisite for isolation processing of the recombinant product outside the fermentation vessel. Disclosed are improved methods for effecting efficient host cell death inside the fermentation vessel through uniformly contacting host cells in culture with microbicidal concentrations of benzyl alcohol. Illustratively, E. coli, B. subtilis, and P. aeruginosa cultures are advantageously treated with from 0.5 to 10.0% (v/v) of benzyl alcohol in the absence of pH or temperature changes within the fermentor.

    摘要翻译: 在从重组宿主生物的发酵培养物回收生物活性多肽的方法中,细胞死亡通常是发酵容器外的重组产物的分离处理的先决条件。 公开了通过使培养物中的宿主细胞与杀菌剂浓度的苯甲醇均匀接触来实现发酵容器内有效的宿主细胞死亡的改进方法。 示例性地,在发酵罐内没有pH或温度变化的情况下,有利地用0.5至10.0%(v / v)的苄醇处理大肠杆菌,枯草芽孢杆菌和铜绿假单胞菌培养物。