Antioxidant Composition. (a) Anthocyanins. HPLC analysis was used to separate anthocyanins in the pigmented rice brans
into two major compounds, Figure 1 and Table 2. Anthocyanins were not found in normal rice bran but were found in all pigmented rice bran samples. The two principal anthocyanins found in pigmented rice bran were cyanidin-3-glucoside and peonidin-3-glucoside.