Table 1.

Absorption at different wavelengths of C. merolae crude extract and the different fraction of ammonium sulfate treated extract

	Crude extract	Supernatant fraction of 20% (NH4)2SO4	Supernatant fraction of 40% (NH4)2SO4	Pellet fraction of 40% (NH4)2SO4	Supernatant fraction of 60% (NH4)2SO4	Pellet fraction of 60% (NH4)2SO4
Volume of sample (mL)	40	40	40	10	40	10
Dilution	1:5	1:5	1:5	1:20	1:5	1:20
A652	0.098	0.096	0.032	0.059	0.019	0.031
A624	0.496	0.469	0.167	0.271	0.042	0.147
A562	0.145	0.135	0.049	0.135	0.017	0.048
A280	0.05	0.051	0.025	0.015	0.073	0.014
Purity index	9.92	9.26	6.78	18.07	0.58	10.78
Total C-PC	16.8	15.8	5.6	9.2	1.2	5
Yield	100	94.31	33.81	54.06	7.38	31.32