椆树桑寄生的挥发性组分分析

Analysis of the Volatile Constituents from Loranthus delavayi

目的:分析椆树桑寄生的挥发性组分的化学组成。方法:采用水蒸气蒸馏法和超临界CO2流体萃取法分别对椆树桑寄生的挥发性组分进行提取,利用GC-MS联用技术对挥发性组分的化学组成进行分析鉴定。结果:从水蒸气蒸馏法提取物中共分离出61个组分,鉴定了其中40个组分,相对含量之和占总峰面积的81.15%;从超临界CO2流体萃取法提取物中共分离出92个组分,鉴定了其中46个组分,相对含量之和占总峰面积的63.31%。结论:水蒸气蒸馏法和超临界CO2流体萃取法所得椆树桑寄生的挥发性组分的化学组成存在很大差异。

Objective ：To study the volatile constituents of Loranthus delavayi. Methods ：The volatile constituents were extracted by steam distillation and supercritical CO2 fluid extraction, and the chemical compositions were analyzed by GC-MS techniques. Results： Sixty-one peaks were separated and 41 of them were identified, accounting for 81.15% of the total content from the extracts of steam distillation; Ninty-tuo peaks were separated from the extracts of supercritical CO2 fluid extraction, and 46 of them were identified, ac- counting for 63.31% of the total content. Conclusion：There are great differences between the chemical compositions of the volatile constituents extracted by steam distillation and supercritical CO2 fluid extraction.