Sompong,
Siebenhandl-Ehn, Linsberger-Martin, and Berghofer (2011) re-cently reported that in studies of ten red rice cultivars and three
black rice cultivars, the TPC significantly differed between cultivars
of the same coloured rice rather than between different coloured
rice strains. Moreover, the highest TPC was found in red Thai rice
(691 mg/100 g).