Studies on the chemical constituents of the Seeds of Zizyphus jujuba Mill

Key words: 
• Zizyphus jujuba Mill /
• chemical constituents

Abstract: Objective :To study the chemical constituents of the seeds of Zizyphus jujuba Mill. Methods :Multi-chromatographic methods including silica gel column chromatography and Sephadex LH-20 gel permeation were employed for the isolation and purification.The structures were identified on the basis of chemical reaction and spectral analisis. Results :Seven compounds were isolated and identified as stigmast-4-en-3-one,phenylalanine,glycerol,isoswertis,hexacosanoic acid,quercetin and nolic acid. Conclusion :Compound 5,6 and 7 were isolated from the seeds of Zizyphus jujuba Mil1for the first time.