Research Article

Antioxidation and Tyrosinase Inhibitory Ability of Coffee Pulp Extract by Ethanol

Figure 4

DPPH-free radical scavenging capacity of the coffee pulp extracts obtained using different ethanol concentrations. (a) DPPH-free radical scavenging activity; (b) IC50 of DPPH-free radical scavenging activity.
(a)
(b)