Dynamic Feeding for Pichia pastoris.

Alexander Pekarsky, Oliver Spadiut

Methods in molecular biology (Clifton, N.J.) 2022

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The knowledge of certain strain-specific parameters of recombinant Pichia pastoris strains is required to be able to set up a feeding regime for fed-batch cultivations. These parameters are commonly determined either by time-consuming and labor-intensive continuous cultivations or by several, consecutive fed-batch cultivations. Here, we describe a fast method based on batch experiments with substrate pulses to extract certain strain characteristic parameters, which are required to set up a dynamic feeding strategy for P. pastoris strains based on the specific substrate uptake rate. We further describe in detail the course of actions, which have to be taken to obtain the desired dynamics during feeding. © 2022. Springer Science+Business Media, LLC, part of Springer Nature.