藏药镰形棘豆挥发性成分研究(英文)

本文通过水蒸气蒸馏、超临界CO2萃取和顶空萃取三种方法并结合GC和GC/MS技术分析藏药镰形棘豆(Oxytropis falcate Bunge)中的挥发性成分,共鉴定出58个化合物,分别占71.0%,85.6%和84.5%。烷烃类、黄酮类和醛类化合物为主要挥发性成分。3种方法得到的挥发性成分在保留时间值上具有一定的连续性,能更完全地阐述清楚藏药镰形棘豆的挥发性成分,为进一步开发利用这种药用植物提供科学依据。

Volatile Compositions from A Tibetan Medicine:Oxytropis falcate Bunge

To examine the volatile compositions from Oxytropis falcate Bunge,the volatiles were obtained using water distillation,supercritical CO2 and headspace extraction methods and their chemical compositions were analyzed by GC and GC/MS.58 compounds were identified and the amount of the identified compounds represented for 71.0%,85.6% and 84.5% of all the volatiles,respectively.The main components were paraffin hydrocarbons 30.1% (water distillation),flavonoid compounds 68.5% (supercritical CO2 extraction) and aldehyde compounds 53.8% (headspace extraction).In addition,micromolecular terpenoids,organic acids,esters,aldehydes and nitrogenous compounds were also identified.It suggested that retention times of the volatiles extracted using three methods were consecutive which could provide a comprehensive volatile composition of O.falcate Bunge and a scientific basis for further development and utilization of this medicinal plant.