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Aim To discover the oxygenated monoterpenes that play a critical role in the biosynthetic pathway of monoterpene in Rosa damascene.Method Several kinds of isolation techniques such as liquid-liquid partition,silica column chromatography,thin layer chromatography and high performance liquid chromatography were used to separate the compounds and several identification techniques such as GC-MS and 1H-NMR were used to determine the structure of the isolated compounds.Results Three oxidized acyclic monoterpenes were obtained.They are 8-hydroxygeraniol,8-hydroxynerol and 8-hydroxylinalool.Conclusion The compounds are the important materials of pharmaceutical,cosmetic and food industries.The work has not only provided a new method for the determination of the main aromatic components of Rosa damascena,but also built up an important foundation for the study of biosynthesis of monoterpenoids in the plant.
Aim To discover the oxygenated monoterpenes that play a critical role in the biosynthetic pathway of monoterpene in Rosa damascene. Method Several kinds of isolation techniques such as liquid-liquid partition, silica column chromatography, thin layer chromatography and high performance liquid chromatography were used to separate the compounds and several identification techniques such as GC-MS and 1H-NMR were used to determine the structure of the isolated compounds. Results Three oxidized acyclic monoterpenes were obtained. They are 8-hydroxygeraniol, 8-hydroxynerol and 8-hydroxylinalool. Confluence The compounds are the important materials of pharmaceutical, cosmetic and food industries. the work has not only provided a new method for the determination of the main aromatic components of Rosa damascena, but also built up an important foundation for the study of biosynthesis of monoterpenoids in the plant.