Previous studies have reported rice as an abundant source of substances with biological effects, including
γ-oryzanol, tocopherol, tocotrienol, phenolic compounds, phytic acid and phytosterol, etc., which have
significant roles in promoting health and preventing a number of diseases while also promoting antioxidant
activities [5]-[11]. It is commonly known that rice with black and red pigments tend to have better antioxidant
capacity than rice with white pigment [12] and [13]