Table 1. Effect of various carbon sources on the production of the porphyrin-like compound.

Substrate (1% (w/v))	A400	A800	Ratio A400/A800
Glucose	1.02 ± 0.004	7.00 ± 0.28	0.15
Galactose	0.35 ± 0.02	7.68 ± 0.33	0.05
Dulcitol	0.90 ± 0.05	8.67 ± 0.31	0.10
Sucrose	0.16 ± 0.00	8.05 ± 0.67	0.02