From: In vitro antioxidant and free-radical scavenging activities of polar leaf extracts of Vernonia amygdalina
Solvent
Weight of crude sample
Percentage yield
MeOH extract
76Â g
19.0%
EtOH extract
54Â g
13.5%
H2O extract
28Â g
7.0%
Total yield
158
39.5%