Antioxidant and Antiproliferative Potential of Bioactive Molecules Ursolic Acid and Thujone Isolated from Memecylon edule and Elaeagnus indica and Their Inhibitory Effect on Topoisomerase II by Molecular Docking Approach

Table 3

Hydroxyl radical scavenging activity of ursolic acid and thujone.

Concentration (µg/mL)	Hydroxyl radical scavenging activity (% of inhibition)
	Ursolic acid	Thujone	Ascorbic acid	BHA
20	46.59 ± 0.24^a	26.43 ± 0.51^a	49.60 ± 0.55^a	42.75 ± 0.52^a
40	53.48 ± 0.07^b	47.02 ± 0.71^b	61.40 ± 0.41^b	49.65 ± 0.38^b
60	60.20 ± 0.33^c	53.35 ± 0.47^c	76.43 ± 0.34^c	60.18 ± 0.75^c
80	70.51 ± 0.21^d	56.76 ± 0.30^d	88.25 ± 0.42^d	73.15 ± 0.38^d
100	74.62 ± 0.17^e	63.34 ± 0.22^e	94.06 ± 0.60^e	88.55 ± 0.57^e

The values are mean of triplicates with (±) standard deviation (mean ± S.D; n = 3). Different superscript letters (a–e) in column within treatments indicates significant differences (at ) when subject to Tukey’s multiple comparison test.