Abstract
The main objectives of this study were to investigate physicochemicals and antioxidant activities of new red rice (Oryza sativa cv. Gunganghongmi (GH)) by comparing normal brown (Nampyeongbyeo, NB) and reported red rice (Jukjinjubyeo, JB) in Korea. The nutritional constituents, including protein, oil, sugar, fatty acid, GABA, and γ-oryzanol were not significantly different between normal brown and colored rice. However, the ethanol extract of GH showed the highest phenolic content (24.7 ± 1.3 mg g−1). The ethanol extracts of GH showed higher scavenging activities against DPPH (0.2 mg mL−1 = 62.1 ± 2.5%) and ABTS (0.2 mg mL−1 = 63.2 ± 3.5%) radicals. Moreover, GH more inhibited LPS-induced nitric oxide (NO) production (13.2 ± 1.4 μM) than JB (18.3 ± 2.3 μM) and NB (22.1 ± 1.4 μM) at the same concentration (0.2 mg mL−1) without cytotoxicity. These results suggest that new red rice (GH) would be considered to be new functional rice due to its anti-oxidative effect and high nutrition.
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Seo, W.D., Kim, J.Y., Song, YC. et al. Comparative analysis of physicochemicals and antioxidative properties in new red rice (Oryza sativa L. cv. Gunganghongmi). J. Crop Sci. Biotechnol. 16, 63–68 (2013). https://doi.org/10.1007/s12892-012-0057-3
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DOI: https://doi.org/10.1007/s12892-012-0057-3