Table 2.

Antioxidant activity of T. laurifolia leaf extracts.

Sample	Half Maximal Inhibitory Concentration (IC50: μg/cm3)
	1,1-diphenyl-2-picrylhydrazyl (DPPH Inhibition)	Lipid Peroxidation Inhibition
Ascorbic acid	4.4 ± 0.3 b	N.D.
α-Tocopherol	N.D.	4.3 ± 0.3 c
Trolox	6.8 ± 0.6 c	0.2 ± 0.0 a
Gallic acid	1.8 ± 0.0 a	1.2 ± 0.1 b
Quercetin	2.7 ± 0.5 a,b	0.1 ± 0.0 a
SE	217 ± 8 e	8 ± 1 d
RE	89 ± 1 d	12.9 ± 0.1 e

N.D., not determined. a, b, c, d, and e denote significantly different among samples at p < 0.05.