2.3. Extraction of crude phenolics of rice fractions
2.4. Determination of total phenolic content
2.5. Free-radical scavenging activity on DPPH
2.6. Ferric reducing ability of plasma (FRAP) assay
2.7. Determination of phenolics-acid composition
2.8. Extraction and determination of c-oryzanol and tocopherols
contents
2.9. Statistical analysis