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Research Article

Antioxidant and Free Radical Scavenging Effects of Lippia nodiflora

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Pages 762-771 | Accepted 02 Apr 2008, Published online: 05 Jan 2009

Figures & data

Figure 1. Percentage inhibition of lipid peroxidation by α -tocopherol and different concentrations of MELN in the linoleic acid emulsion. Results are mean ± SEM of three parallel measurements. p < 0.05 when compared with control.

Figure 1.  Percentage inhibition of lipid peroxidation by α -tocopherol and different concentrations of MELN in the linoleic acid emulsion. Results are mean ± SEM of three parallel measurements. p < 0.05 when compared with control.

Figure 2. Reducing power of MELN and BHT by spectrophotometric detection of Fe3+-Fe2+ transformation. Results are mean ± SEM of three parallel measurements. p < 0.001 when compared with control.

Figure 2.  Reducing power of MELN and BHT by spectrophotometric detection of Fe3+-Fe2+ transformation. Results are mean ± SEM of three parallel measurements. p < 0.001 when compared with control.

Figure 3. Free radical scavenging activity of different concentrations of MELN and vitamin C by DPPH radicals. Results are mean ± SEM of three parallel measurements. p < 0.001 when compared with control.

Figure 3.  Free radical scavenging activity of different concentrations of MELN and vitamin C by DPPH radicals. Results are mean ± SEM of three parallel measurements. p < 0.001 when compared with control.

Figure 4. Superoxide anion scavenging activity of MELN and same doses of BHA and BHT by PMS-NADH-NBT method. Results are mean ± SEM of three parallel measurements. p < 0.001 when compared with control.

Figure 4.  Superoxide anion scavenging activity of MELN and same doses of BHA and BHT by PMS-NADH-NBT method. Results are mean ± SEM of three parallel measurements. p < 0.001 when compared with control.

Figure 5. Percentage inhibition of nitric oxide radical by MELN and curcumin. Results are mean ± SEM of three parallel measurements. p < 0.001 when compared with control.

Figure 5.  Percentage inhibition of nitric oxide radical by MELN and curcumin. Results are mean ± SEM of three parallel measurements. p < 0.001 when compared with control.

Figure 6. Effect of MELN and catechin on inhibition of hydroxyl radical. Results are mean ± SEM of three parallel measurements. p < 0.001 when compared with control.

Figure 6.  Effect of MELN and catechin on inhibition of hydroxyl radical. Results are mean ± SEM of three parallel measurements. p < 0.001 when compared with control.

Figure 7. Hydrogen peroxide activity of different concentrations of MELN, BHT, and α-tocopherol. Results are mean ± SEM of three parallel measurements. p < 0.05 when compared with control.

Figure 7.  Hydrogen peroxide activity of different concentrations of MELN, BHT, and α-tocopherol. Results are mean ± SEM of three parallel measurements. p < 0.05 when compared with control.

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