Table 2.

Total antioxidant activity between the old and young leaf extract.

Concentration	Vitamin C (mean ± SEM)	YL (mean ± SEM)	OL (mean ± SEM)
1.0 mg/mL	94.43 ± 0.62	74.21 ± 3.19∗	44.01 ± 0.69#a
0.5 mg/mL	89.33 ± 0.74	67.05 ± 2.15∗	32.95 ± 1.66#a
0.1 mg/mL	71.76 ± 7.82	29.11 ± 3.19∗	21.94 ± 0.21#a
0.05 mg/mL	64.32 ± 1.72	21.15 ± 1.05∗	14.99 ± 0.86#a

(n = 7) p < 0.05 was considered statistically significant. ∗ = statistical difference between control and YL; # = statistical difference between control and OL; a = statistical difference between YL and OL.