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- W2040813538 abstract "By means of a model predictive control strategy it was possible to ensure a high batch-to-batch reproducibility in animal cell (CHO-cell) suspensions cultured for a recombinant therapeutic protein (EPO) production. The general control objective was derived by identifying an optimal specific growth rate taking productivity, protein quality and process controllability into account. This goal was approached indirectly by controlling the oxygen mass consumed by the cells which is related to specific biomass growth rate and cell concentration profile by manipulating the glutamine feed rate. Process knowledge represented by a classical model was incorporated into the model predictive control algorithm. The controller was employed in several cultivation experiments. During these cultivations, the model parameters were adapted after each sampling event to cope with changes in the process' dynamics. The ability to predict the state variables, particularly for the oxygen consumption, led to only moderate changes in the desired optimal operational trajectories. Hence, nearly identical oxygen consumption profiles, cell and protein titers as well as sialylation patterns were obtained for all cultivation runs." @default.
- W2040813538 created "2016-06-24" @default.
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- W2040813538 date "2012-03-27" @default.
- W2040813538 modified "2023-09-25" @default.
- W2040813538 title "Increasing batch-to-batch reproducibility of CHO-cell cultures using a model predictive control approach" @default.
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- W2040813538 doi "https://doi.org/10.1007/s10616-012-9438-1" @default.
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