Essential oil from the flowers of Edgeworthia chrysantha Lindl.
作者单位：Department of Applied Biology and Chemical TechnologyThe Hong Kong Polytechnic UniversityHung HomHong KongChina
会议名称：《浙江省第二届生物多样性保护与可持续发展研讨会》
会议日期：2004年
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070302[理学-分析化学] 0703[理学-化学]
摘 要：Edgeworthia chrysantha (family Thymelaeaceae), native to China, is a deciduous small shrub. It has strongly aromatic flowers. It is used as folk medicine to cure eye disease1-5. The flowers are reputed to cure wet dream and abnormity of leucorrhea3,5 . Ethanolic and enhydrous extracts of E. chrysantha also showed antibacterial and antifungal activities2,4. A previous phytochemical study mainly led to the isolation of some coumarin compounds2,6-11and other components such as glucoside et al12,13. The essential oil from fresh flowers of Edgeworthia chrysantha was the first time investigated by GC-MS here. It afforded 0.13% essential oil (3hrs. of distillation by hexane), characterized by a special odour. A total of 45 compounds were identified, about 75.75% of the composition of the oils (fig. 1). The known oil is rich in ester (41.4%) and ketones (16.57%). Methyl cis,cis-9,12-octadecadienoate (7.47%) and methyl all-cis-9,12,15-octadecatrienoate (8.10%) are two of the most abundant constituents. The remaining portions of the oils consist of long chain alkane (6.07%), alkyl aromatics (4.76%) and other trace amounts components.