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ed by DLB. The age of onset of parkinsonism was the most decisive feature for differential diagnosis.The purpose of this research was conducted to determine anthocyanin constituent from the grains of Purple black rice No. 6. Moreover, the in vitro antioxidant activity of black rice pigment (BRP) was evaluated. The crude extract of black rice was isolated and purified by silica gel thin layer chromatography. Anthocyanins were elucidated using ultraviolet visible spectroscopy, infrared spectroscopy, nuclear magnetic resonance spectroscopy