The final volume was measured to 5.0 mL and the solution was homogenized for 1 min. After 2 h, the absorbance was measured at 750 nm. The data were calculated by comparison between a standard curve (10 to 350 μg gallic acid/mL) (Figure 1) with the absorbance of each samples. The data were expressed as μg gallic acid equivalents (GAE) per gram of dry extract.