银杏叶精油的化学成分

CHEMICAL CONSTITUENTS OF ESSENTIAL OIL FROM THE LEAVES OF GINKGO BILOBA

摘要:

采集3-5年银杏苗叶,经常压水蒸汽蒸馏制得浅黄色精油,通过GC和GC/MS鉴定出44个化学成分,主要由31.14%烃类、5.61%醇类、1.78%醛类。46.17%酮类、5.41%酸类和1.1%酯类组成。在酮类中以六氢法呢酮含量最高,占11.15%,其次为橙花基酮(8.68%)和β-紫罗兰酮(5.24%)。

关键词:银杏叶; 精油; GC/MS

Abstract:

The leaves of 3- to 5-year-old ginkgo (Ginkgo biloba) were collected from Pixian County in Jiangsu Province in September, and a yellow essential oil was obtained by water distillation. Forty-four compounds from the essential oil were determined by GC and GC-MS, which consisted of 31 .14% hydrocarbons, 5.61 % alcohols, 1.78% aldehydes, 46.17% ketones, 5.41 % acids and 1.1% esters. In ketones of the oil, the content of hexahydrofarnesyl acetone was found highest (11.15%), followed by nerylacetone (8.68%), β-ionone and farnesyl acetone, amounting to 5.24% and 3.73%, respectively.

Key words:Ginkgo biloba; Essential oil; GC-MS