Total phenolic content (IPC) dif fered significantly between the varieties, but not between the colors, Highest IPC was found in the red Thai rice Bahng Gawk (BG) with 691 FA equivalent mg / 100g DM, which showed as well the highest properties. In red varieties, the major phenolic acids in the free form were ferulic, proto Catechnic and vanillic acid, while in black varieties protocatechnic acid was dominant followed by vanillic and ferulic acid.