Table 3. DPPH radical scavenging activity of grapefruit seed extract
Samples
DPPH radical scavenging activity (%)
IC
50
(μg/mL)
0.125
1)
9.85±0.40
04)c5)
0.25
37.50±1.13
b
333.33±14.12
a
0.5
70.83±2.47
a
BHT
2)
98.52±2.44
b
BHA
3)
92.01±4.88
b
Vitamin C
58.24±3.28
c