Abstract:

Objective To provide the experimental data for development and utilization of  the medicinal values of the leaves of Zea mays L.through analyzing its chemical constituents. Methods The leaves of Zea mays L. were extracted with 95% ethanol. Repeated column chromatography with maroporous resin column,silical gel,Sephadex LH-20 were used to isolate the chemical constituents and their structures wereidentifed on the basis of spectral data.
Results According to the single spot in TLC,three flavonoid compounds and one sterols compound were isolated from the leaves of Zea mays L.,and their structurs were identifited through physicochemical constants and spectroscopic analysis. They were tricin (1),tricin -5-O-β-D-glucopyranoside (2),tricin -7-O-β-D-glucopyranoside (3),and β-sitosterol(4).Conclusion  Three flavonoid compounds and one sterols compound are isolated and these are isolated from the leaves of Zea mays L. for the first time.

Key words: leaves of Zea mays L.;flavonoid;column chromatography;structure identification