Chemical constituents of rhizomes of Zingiber officinale

OBJECTIVE: To investigate the chemical constituents from the rhizomes of Zingiber officinale. METHOD: Isolation and purification of the chemical constituents were carried out on the column chromatography of silica gel and Sephadex LH-20. The structures were elucidated on basis of physicochemical properties and spectral data. RESULT: Ten compounds were isolated and identified as beta-sitosterol palmitate (1), isovanillin (2), glycol monopalmitate (3), hexacosanoic acid 2,3-dihydroxypropyl ester (4), maleimide-5-oxime (5), p-hydroxybenzaldehyde (6), adenine (7), 6-gingerol (8), 6-shogaol (9), and 1-(omega-ferulyloxyceratyl) glycerols (10a-10f). CONCLUSION: Compounds 1-7 and 10a-10e are obtained from Z. officinale for the first time, and compound 10f is a new compound.