Comparing the free phenolic content
of parboiled polished and non-parboiled polished black and red
rice, it is possible to verify a 4.3 times and a 9.9 times higher free
phenolic content in parboiled polished black rice and red rice,
respectively, than their respective non-parboiled polished counterparts.
This result is similar to those reported by Walter et al. (2013)
for IAC-600 black rice cultivar.