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Hydrocyclones as cell retention devices for an N-1 perfusion bioreactor linked to a continuous-flow stirred tank production bioreactor

机译:氢旋流器作为细胞保留装置,用于N-1灌注生物反应器连接到连续流动搅拌槽生产生物反应器

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摘要

A continuous Chinese hamster ovary (CHO) cell culture process comprised of a highly proliferative N-1 perfusion bioreactor utilizing a hydrocyclone as a cell retention device linked to a production continuous-flow stirred tank reactor (CSTR) is presented. The overflow stream from the hydrocyclone, which is only partially depleted of cells, provides a continuous source of high viability cells from the N-1 perfusion bioreactor to the 5-20 times larger CSTR. Under steady-state conditions, this linked-bioreactor system achieved a peak volumetric productivity of 0.96 g/L/day, twofold higher than the optimized fed-batch process. The linked bioreactor system using a hydrocyclone was also shown to be 1.8-3.1 times more productive than a dual, cascading CSTR system without cell retention.
机译:提出了一种连续的中国仓鼠卵巢(CHO)细胞培养方法,其包括利用水力旋流器作为连接到生产连续流动搅拌釜反应器(CSTR)的电池保持装置的高增殖N-1灌注生物反应器。 来自水力旋流器的溢流流仅部分耗尽细胞,从N-1灌注生物反应器提供高活力细胞的连续源,较大的CSTR的5-20倍。 在稳态条件下,这种连接的生物反应器系统达到0.96克/升/日的峰值体积生产率,高于优化的美联储方法。 使用水力旋流器的连接的生物反应器系统也显示出比双级联的CSTR系统更高的1.8-3.1倍,没有细胞保留。

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