Bioprospective studies of pigmented ink from Sepioteuthis lessoniana and its molecular identification using CO1 gene

The Journal of Basic and Applied Zoology

Table 2 In vitro antioxidant activity of ink extract (DPPH radical scavenging activity of different concentrations)

Treatment	Concentration (μg/ml)	Absorbance at 518 nm	% Inhibition
Ink extract	50	1.25	18.2
	100	0.875	42.8
	250	0.782	48.9
	500	0.677	55.7
	1000	0.589	61.5
Positive control	50	0.93	39.2
	100	0.78	49.01
	250	0.643	57.9
	500	0.532	65.2
	1000	0.241	84.2
Negative control	–	1.53	–