In this study, the content of total phenols, total flavonoids, triterpenoid saponins and polysaccharides as well as
the antioxidant activity of different solvents (water, 70% ethanol, methanol, acetone and ethyl acetate) crude extracts
from fruiting bodies of Trametes gibbosa were investigated. The results showed that the water extract had the highest
total phenols content (28.6 mg/g) and the methanol extract had the highest polysaccharides content (561.6 mg/g).
The water extract and 70% ethanol extract demonstrated significant DPPH radical scavenging effect higher than
methanol, acetone and ethyl acetate extracts at all tested concentration while the same effect for ABTS radical
scavenging was only found at 0.6 mg/mL and above. For ferric-reducing power assay, the water extract was found
with the highest antioxidant activity among five extracts at the concentration from 0.8 to 1.6 mg/mL. Correlation
analysis showed that there was a higher correlation between total phenols, polysaccharides and antioxidant activity.
