Antioxidant Activity of Extract and a New Isolated Dioxaspiran Derivative of Tripleurospermum disciforme.

Figures & data

Table 1.. Yield, % of peroxidation inhibition (mean ± SD) of different extracts of Tripleurospermum disciforme., and IC₅₀ against linoleic acid (1 mg/ml) in the reaction mixture.

		Peroxidation inhibition (%)
Plant extract	Yield (%)	0.01 mg/ml	0.1 mg/ml	1 mg/ml	IC50 (µg/ml)
Hexane	3.69	−10.72 ± 1.95	19.44 ± 2.91	84.13 ± 2.10	189.75
Chloroform	1.20	62.24 ± 2.02	80.82 ± 2.48	90.77 ± 0.60	10.75
Ethyl acetate	0.32	13.31 ± 0.75	61.27 ± 3.66	71.96 ± 1.85	124.75
Methanol	4.10	12.62 ± 1.70	64.88 ± 2.40	96.92 ± 0.80	56.00
Water	2.18	20.32 ± 1.79	62.80 ± 1.92	97.55 ± 1.36	44.25
α.-Tocopherol	—	—	—	—	14.75

Figure 1 Chemical structure of compound 1.