超临界CO_2提取天茄子挥发油化学成分的分析

Analysis of Chemical Constituents of Essential Oils from Calonyction muricatum by SFE-CO_2

目的:研究天茄子挥发油的化学成分。方法:采用超临界CO2萃取法提取挥发油,用气相色谱-质谱联用法分析其化学成分,用面积归一化法确定各成分的相对含量。结果:从超临界CO2萃取法挥发油中分离鉴定46个化合物,占挥发油总量的92.80%,其中主要成分是亚油酸、棕榈酸、硬脂酸、早熟素Ⅱ。结论:天茄子挥发油化学成分以脂肪酸类为主,占72.32%。

Objective：To study the chemical constituents of the essential oils from Calonyction muricatum.Method： The essential oils were extracted by supercritical carbon dioxide extraction,and then the constituents were separated and identified by gas chromatography-mass spectrometer（GC-MS）,and then their relative content was determined by the area normalization.Result： Forty-six compounds were isolated and identified that composed about 92.80% of the total essential oils.The principal constituents are linoleic,palmitic acid,stearic acid,precocene Ⅱ.Conclusion： Fatty acid is the main constituent of the essential oil,accounting for 72.32% of the total.