Figure 3.

Means and standard errors of the antioxidant properties of the sonicated extracts’ (a) Total phenolic compounds (TPC), (b) IC₅₀ values of the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical, (c) IC₅₀ values of the 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radical, and (d) FRAP—ferric-reducing antioxidant power (control = non-sonicated extract, 1 = 60% 10 min, 2 = 60% 25 min, 3 = 60% 40 min, 4 = 80% 10 min, 5 = 80% 25 min, 6 = 80% 40 min, 7 = 100% 10 min, 8 = 100% 25 min, and 9 = 100% 40 min). Different letters indicate significant differences between the treatments (p ≤ 0.05).