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首页> 外文期刊>Chemie-Ingenieur-Technik: Verfahrenstechnik Technische Chemie Apparatewesen Biotechnologie >Cultivation of Cells and Microorganisms in Wave-Mixed Disposable Bag Bioreactors at Different Scales
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Cultivation of Cells and Microorganisms in Wave-Mixed Disposable Bag Bioreactors at Different Scales

机译:波浪混合的一次性袋式生物反应器中不同规模的细胞和微生物培养

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摘要

Disposable bioreactors have gained an increasing importance in recent years in the pharmaceutical production. Wave-mixed reactors were among the first systems which were applied. In contrast to stirred tank reactors, wave-mixed bioreactors are characterized by low shear forces while the gas exchange is realized by the large gas-liquid interface. Oxygen transfer rates obtained are often in a range between 50 and 300 h~(-1). By applying nutrient-limiting fed-batch cultivations, in which the oxygen consumption of a culture is controlled, bacteria can be also cultivated in wave-mixed reactors. This article describes the successful scale-up of an Escherichia coli fed-batch cultivation from the 12-L to the 120-L scale using a disposable bioreactor, in which a final biomass concentration of 45 g L~(-1) was obtained.
机译:近年来,一次性生物反应器在药物生产中越来越重要。波混反应器是最早应用的系统之一。与搅拌釜反应器相比,波状混合生物反应器的特点是剪切力低,而气体交换则是通过较大的气液界面实现的。所获得的氧气转移速率通常在50至300 h〜(-1)之间。通过应用限制营养的分批分批培养,其中控制了培养物的耗氧量,也可以在波混反应器中培养细菌。本文介绍了使用一次性生物反应器成功将大肠杆菌补料分批培养从12 L规模扩大到120 L规模,其中最终生物质浓度为45 g L〜(-1)。

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