Supercritical Fluid Extraction (SFE) and Subcritical Water Extraction (SWE) from mango leaves were
applied in order to obtain extracts with high phenolic content and potent antioxidant activity. SWE was more efficient
than subcritical CO2 + ethanol. The antioxidant activity was evaluated by DPPH assay, and the quantifi-
cation of the main polyphenols of mango leaves by HPLC analysis. SWE showed global yields up to 35%
for Kent variety, and extracts with antioxidant activities superior to (+)--tocopherol related with their
high content on the polyphenols mangiferin and quercetin.