Fig. 4From: Efficient production of 1,3-propanediol from crude glycerol by repeated fed-batch fermentation strategy of a lactate and 2,3-butanediol deficient mutant of Klebsiella pneumoniaeProduction of 1,3-PDO by repeated fed-batch fermentation of the K. pneumoniae Δ(ldhA als) mutant at pH 6.0 (a), pH 6.5 (b), and pH 7.0 (c) using crude glycerol as a substrateBack to article page