Figure 2From: Improved productivity of poly (4-hydroxybutyrate) (P4HB) in recombinant Escherichia coli using glycerol as the growth substrate with fed-batch culture E . coli JM109 (pKSSE5.3) grown in modified E2 medium supplemented with or without acetate in shake flasks. 10gL-1 glycerol was used as the main carbon source. A: 2gL-1 acetate was added to the culture; B: 1gL-1 acetate was added to the culture. The data are the average numbers of duplicates.Back to article page