Fig. 3

Changes in various indicators during the fermentation process of polyglutamic acid. (a) Variation of γ-PGA content with time; (b) Variation of glutamic acid content with fermentation time; (c) Variation of DCW with fermentation time
Changes in various indicators during the fermentation process of polyglutamic acid. (a) Variation of γ-PGA content with time; (b) Variation of glutamic acid content with fermentation time; (c) Variation of DCW with fermentation time