Fig. (5) DPPHREM percentage for TA in ethyl acetate (TA-Ac), ethanol (TA-Et) and methanol (TA-Me) in the following concentrations: 0.16 g L-1 (C1); 0.12 g L-1 (C2); 0.08 g L-1 (C3) and 0.04 g L-1 (C4).