Improving astaxanthin production in Escherichia coli by co-utilizing CrtZ enzymes with different substrate preference

Table 2 Carotenoids production by representative E. coli strains

Strain^a	OD₆₀₀	canthaxanthin (mg/L)	echinenone (mg/L)	β-carotene (mg/L)
CAR026	6.96 ± 0.13	n.d.	n.d.	48.4 ± 3.47
CAR032	5.13 ± 0.08	n.d.	n.d.	46.51 ± 1.85
Can003	9.98 ± 0.72	26.6 ± 2.59	4.21 ± 1.73	8.62 ± 1.74
Can004	9.82 ± 0.26	40.7 ± 0.41	3.6 ± 0.65	3.87 ± 0.65

^aThree repeats were performed for each strain, and the error bars represented standard deviation

ISSN: 1475-2859