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- W2058576871 abstract "Many studies underlined the great benefits of hydrolysates used as additives in animal free media on cell culture performances. However, to precisely define hydrolysate supplementation strategies, a deeper understanding of their effect on cell growth and protein production is required. In the present study, the effect of addition of one yeast extract (YE) and two yeast peptones (named YP.A and YP.B) in a chemically defined medium was first assessed on cell culture performances. Interestingly, specific effects were found depending on the degree of degradation of yeast hydrolysates. The YE at 1 g L(-1) increased the maximal cell density by 70 %, while a mixture of YE (1 g L(-1)) and YP.A (4 g L(-1)) increased IgG production by 180 %. These conditions were then evaluated on the CHO cell kinetics all over cultures. Hydrolysates extended the cell growth phase in Erlenmeyer flask and increased the maximal growth rate in bioreactor up to 20 %. Cell growth stimulation induced by hydrolysates addition was linked with energetic metabolism improvement suggesting that they promote oxidative pathway. Furthermore, hydrolysates provided an additional source of substrate that supported cell growth despite glutamine limitation." @default.
- W2058576871 created "2016-06-24" @default.
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- W2058576871 date "2012-12-14" @default.
- W2058576871 modified "2023-10-16" @default.
- W2058576871 title "Combination of yeast hydrolysates to improve CHO cell growth and IgG production" @default.
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- W2058576871 doi "https://doi.org/10.1007/s10616-012-9519-1" @default.
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