Sample
|
DPPH
|
Nitric oxide
|
Reducing power
|
Hydrogen peroxide
|
---|
|
IC50
a
|
R2 b
|
IC50
|
R2
|
IC50
|
R2
|
IC50
|
R2
|
---|
P. viridiflorum
|
0.22
|
95.70
|
0.16
|
39.10
|
0.26
|
83.20
|
0.13
|
89.90
|
G. bicolor
|
0.27
|
91.80
|
0.22
|
93.60
|
0.27
|
99.90
|
0.23
|
92.20
|
Vitamin C
|
0.05
|
73.90
|
0.24
|
96.10
|
0.22
|
92.40
|
0.29
|
92.50
|
Rutin
|
0.08
|
30.50
|
0.25
|
99.30
|
-
|
-
|
-
|
-
|
BHT
|
-
|
-
|
-
|
-
|
0.23
|
95.90
|
-
|
-
|
Gallic acid
|
-
|
-
|
-
|
-
|
-
|
-
|
0.15
|
55.90
|
- a: IC50 is defined as the concentration (μg/ml) sufficient to obtain 50% of a maximum scavenging capacity.
- b: coefficient of determination; values obtained from regression lines with 95% confidence level.
- -: Values not determined