Chemistry: molecular biology and microbiology – Spore forming or isolating process
Patent
1990-04-05
1992-09-29
Johnston, Jill A.
Chemistry: molecular biology and microbiology
Spore forming or isolating process
435284, 435286, 435311, 435813, C12N 502, C12M 302, C12M 112
Patent
active
051513625
ABSTRACT:
By culturing cells in an apparatus containing a first zone in which a cell suspended medium is present and a second zone in which liquid containing a physiological saline solution and/or nutrient sources is present, the first zone being separated from the second zone by a septum with characteristics, such as pores size or electrostatic charges, which impedes the cells from freely permeating through, while allowing at least one of nutrient sources, cell wastes or the product to move between the first zone and the second zone via the septum to proliferate cells in the first zone, wherein a flow rate via the septum is controlled in such a manner that the cell count moved from the first zone into the second zone via the septum does not exceed the cell count increased by cell growth in the first zone. Thus, cell culture at a high cell density can be achieved in a large scale.
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Katsuta et al., In Vitro, 15(12) pp. 949-956 (1979).
Ishibashi Tadashi
Kawaguchi Hideo
Odawara Yoji
Shimizu Norio
Takeuchi Kouji
Chan William
Hitachi , Ltd.
Johnston Jill A.
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