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. 2022 Jan 25;9:792023. doi: 10.3389/fbioe.2021.792023

FIGURE 4.

FIGURE 4

Optimization of the fermentation condition in 250 ml shake flasks. (A) temperature (33–41°C) (B) fermentation volume (30–70 ml) (C) inoculation proportion (2.5–12.5% v/v) (D) rotate speed (160–280 rpm).