Investigation of CO₂ Extract of Portulaca oleracea for Antioxidant Activity from Raw Material Cultivated in Kazakhstan

Table 6

Change in the optical density of solutions depending on the working solutions concentration.

No.	Samples	Optical density value at concentration (mg/ml)
		0.25	0.5	0.75	1.0
1	Ascorbic acid (AA)	1.5539	1.5928	1.6775	1.7738
2	CO2 extract of Portulaca oleracea (CO2P. oleracea)	0.1314	0.2659	0.3878	0.7519