The reading was performed every 1 min for
80 min with emission at 520 nm and excitation at 485 nm and the
temperature controlled at 37 C. For hydrophilic ORAC, 20 mL of
each crude extract (papaya, araticum and jackfruit were diluted at a
concentration of 6 mg/mL diluted in buffer) was added with 120 mL
fluorescein (0.4 mg/mL) and 60 mL of the radical AAPH (2,20-azobis
2-methylpropionamidine) dihydrochloride, Aldrich at a concentration
of 108 mg/mL