Fig. 11From: Optimal process design space to ensure maximum viability and productivity in Penicillium chrysogenum pellets during fed-batch cultivations through morphological and physiological controlSweet spot plot (green area) based on the following properties: viability factor: 0.6–0.75, viable layer: 31–40 µm, mean qp: 0.45–0.48, compactness: 0.5–0.6 at a pellet fraction: 75–95% of the whole biomass according to morphological classification. Dissolved oxygen content: 40%. Dark blue areas signify that two criteria are met; light blue areas signify that three criteria are metBack to article page