Anthocyanin which belongs to flavonoids, is responsible
for the attractive colors of flowers, fruits and grains in nature (Kong
et al., 2003). It has been widely reported that anthocyanin plays an
important role in reducing risk of oxidative damage and is a kind of
the potential drug candidates to treat cancer and cardiovascular
diseases (Chen et al., 2012). Different types of anthocyanin are
observed in various types of black rice