摘要
采用水蒸气蒸馏法提取马尾松和湿地松松针叶挥发油的油相部分,用乙醚萃取法提取蒸馏残液中的水溶性挥发性组分,利用气相色谱-质谱联用分析比较它们的化学成分。由于增加了水溶性部分的提取,马尾松和湿地松挥发油总的得油率提高到0.4709%和0.3452%,提高率分别达19.17%和24.62%。马尾松挥发油的油相成分和水溶性成分组成部分相同,但含量相差较大;而湿地松针叶精油的油相和水相部分成分组成差别较大;马尾松和湿地松相比较,针叶精油(油相部分)的主要化学成分大致相同,都是以单萜和倍半萜为主,但在含量上有较大差别。
The volatile constituents of leaves from pinus massoniana lamb needles and pinus elliottii engelm needles, including oil fraction and water-soluble fraction, were extracted and determined in this paper. Oil fraction of volatile components was obtained through steam distillation. In order to know the quantity and constituents of volatile compounds dissolved in the water phase, ether was used as a solvent to extract the water-soluble fraction of the volatile compounds. Both oil fraction and water-soluble fraction were analyzed by gas-chromatography-mass spectrometry. The results reveal that the essential oil compositions of oil fraction and water-soluble fraction from pinus massoniana lamb needles were similar but the contents of some compounds differed greatly. While the essential oils compositions of oil fraction and water-soluble fraction for pinus etliottii engelm Needles were different greatly. As the extraction of the water-soluble fraction of the volatile compounds, the total yield of oil from pinus massoniana lamb needles and pinus elliottii engelm needles reach 0.4709% and 0.3452% respectively, the rising rates were 19.17% and 24.62% successively. The compositions of the essential oils from needles of pinus massoniana lamb needles and pinus elliottii engelm needles were similar but their contents of some compounds differed greatly. Mono-and sesquiterpenes were the main compositions of the essential oils from pinus massoniana lamb needles and pinus elliottii engelm needles.
出处
《分析试验室》
CAS
CSCD
北大核心
2008年第11期75-80,共6页
Chinese Journal of Analysis Laboratory
关键词
马尾松
湿地松
挥发油
水溶性部分
气相色谱-质谱联用
Pinus massoniana lamb
Pinus elliottii engehn
Volatile oil
Water-soluble fraction
Gas chromatographymass spectrometry
