The chemical compositions of crude extracts and all Fractionation and Identification of Antioxidant Compounds from Bran of Thai Black Rice cv. Riceberry Panawan Suttiarporn, Phumon Sookwong, and Sugunya Mahatheeranont International Journal of Chemical Engineering and Applications, fractions were analyzed by gas chromatograph (GC-Agilent 6890) equipped with HP5-MS (30 m × 0.25 mm × 0.25 µm film thinkness) interfaced to a mass selective detector (HP 5973)