Identification of some antioxidants in bran of the Thai
black rice cultivar Riceberry was accomplished using solvent
extraction, fractionation by column chromatography, and
then analysis by GC-MS. All crude extracts were also
investigated for antioxidant capacity and total phenolic
content. The study revealed that the crude methanolic extract
of Riceberry bran had the strongest antioxidant capacity.
Among overall identified compounds, simple phenolic
compounds and flavonoids were antioxidant compounds. The
major phenolic compounds in this rice bran was
4-vinylguaiacol and the major flavonoids in which was
apigenin. The result showed that Riceberry rice had great
potential for use as a functional food