Table 2.
DPPHa radical scavenging activity of surfactin and rhamnolipid biosurfactants in comparison to BHAb and vitamin E
| Sample/Antioxidant | IC 50 (Concentration-activity correlation) |
|---|---|
| Surfactin | 2.73 mM (y = 10.299x + 22.293 , r2 = 0.8976) |
| Rhamnolipids | 4.15 mM (y = 3.8367x + 34.236 , r2 = 0.9953) |
| Vitamin E | 0.036 mM (y = 789.71x + 19.4 , r2 = 0.9585) |
| BHA | 2.86 mM (y = 16.057x + 4.4213 , r2 = 0.9743) |
aDPPH: 1, 1- diphenyl-2-picryl hydrazyl. bBHA: butylated hydroxyanisole.