Fig. 6From: Engineering Escherichia coli for high-yielding 2,5-Dimethylpyrazine synthesis from L-Threonine by reconstructing metabolic pathways and enhancing cofactors regenerationEffects of different substrate addition levels on L-threonine synthesis of 2,5-DMP catalyzed by different engineered E. coli whole cells. Under the optimal reaction pH condition, the effects of different substrate addition amounts on the product yield were determined, and the substrate addition amounts were 2, 6, 10, 14, 18, 22 g/L, respectivelyBack to article page