Peaks 20–23 (Rts 7.8, 8.4, 9.3 and 10.2 min) identification was
based on a comparison of co-chromatography and absorbance
spectra of the unknown peaks with those of an c-oryzanol
standard. The peaks were identified as cycloartenol ferulate (15)
24-methyenecycloartenol (16), campesterol ferulate (17) and
b-sitosterol (18).