Table 3.

ALA production in C. glutamicum SEAL containing various concentrations of Fe²⁺ at 180, 120 and 80 rpm

The concentration of FeSO4·7H2O (mg/L)	ALA accumulation (mg/L)
	180 rpm	120 rpm	80 rpm
10	528.2 ± 17.88	648.2 ± 16.25	364.4 ± 10.32
0.2	573.1 ± 16.34	652.1 ± 17.27	382.3 ± 13.45
0.1	612.4 ± 18.32	702.4 ± 18.49	402.5 ± 14.28
0.05	664.5 ± 19.48	738.3 ± 19.24	446.2 ± 13.89
0.01	678.3 ± 15.27	830.2 ± 21.24	482.6 ± 14.12
0	548.7 ± 14.58	692.7 ± 18.44	418.6 ± 16.02