The Oryzanol contents were determined in methanol
extracts of FRB, LDRB, CDRB and hexane extracts of
LDRB and CDRB. The FRB (0.16 g/100 g) showed highest
oryzanol content, followed by hexane extracts and methanol
extracts. CDRB had higher levels of oryzanol than
LDRB. Hexane extracts of CDRB and LDRB (0.013 g>
0.006 g/100 g) had higher concentrations of oryzanol than
methanol extracts of CDRB and LDRB (0.003 g>0.001 g/
100 g). This difference in concentrations may be attributed
to different methods of extraction used, and also to the
presence of small amount of oil present in hexane extracts.