Table 3 DPPH radical scavenging activity and AAI of A. cepa, A. sativum, D. gossweileri, P. brazzeana essential oils and ascorbic acid
Regression curve’s equations | Coefficient of determination : R2 | SC50(μg/ml) | AAI | |
|---|---|---|---|---|
A. cepa | y = 192.3 × + 11.96 | 0.927 | 0.20 | 12.626 |
A. sativum | y = 191.6 × + 12.73 | 0.919 | 0.19 | 12.886 |
D. gossweileri | y = 194.0 × + 11.10 | 0.931 | 0.20 | 12.821 |
P. brazzeana | y = 190.2 × + 14.15 | 0.904 | 0.19 | 13.298 |
Ascorbic acid | y = 19.12 × + 12.19 | 0.934 | 1.98 | 1.262 |