Chemical Composition of Essential Oils from Fresh Plant Parts of Korarima(Aframomum corrorima)Cultivated in the Highland of Southern Ethiopia

摘要

The essential oils of the leaves,rhizomes,pods and seeds of Aframomum corrorima cultivated in the highlands of southern Ethiopia were obtained by hydrodistillation.The average moisture contents were 80.53% in leaves,90.30% in rhizomes,88.00% in pods and 14.19% in seeds when analyzed from fresh samples.The essential oils yield of leaves,rhizomes,pods and seeds were 0.46%,0.69%,0.83% and 4.30 % on a w/w dry basis,respectively.The pod and seed oil was analyzed by GC and GC/MS.Forty-two and 40 compounds from pods and seeds consisting of 95% and 99% of the total components were identified from the oils obtained.The major chemical constituents in pod oil were found to be gamma-terpinene(27.1 %),beta-pinene(15.4 %),alpha-phellandrene(8.5 %),1,8-cineole(6.7 %)and beta-cymene(6.4 %),while seed oil was predominated by 1,8-cineole(39.3 %)being followed by sabinene(10.4 %)and geraniol(6.8 %).