The total antioxidant activity of the samples
analyzed in the present study were within the range reported by Alvarez-Parrilla et al. (2007) except ethanol extract of button mushroom (84.69 μmol Fe2+ equivalents/ g dry weight). High antioxidant activities in mushrooms can suppress active oxygen species, which are related to aging and diseases (Yang et al., 2002). They also might be developed into functional foods or drugs in the future.