TABLE 2.

Effects of transporter gene modifications and expression systems on production of cyanidin 3-O-glucoside

Strain	Transporter gene modification	Product titera (mg/liter)
		Fusion, pCDF-3A	Operon, pCDF-3AO
BL21*	—b	20.7c	94.2 ± 2.4
BL21* + pET-pgm-galU + pCOLA-cmk-ndk	—b	42.2 ± 2.2	120 ± 12.1
	ΔtolC	65.7 ± 4.4	120 ± 0.2
	ΔtolC + pACYC-yadH	69.0 ± 2.5	126 ± 2.4

^aAll values are averages from three trials, with standard deviations.

^b—, no plasmid transformed.

^cReference 21.