水蒸气蒸馏法与超临界CO2萃取法提取薄荷油的化学成分比较

Comparison of Essential Oils from Mentha haplocalyx Briq. by Steam Distillation and Supercritical Carbon Dioxide Extraction

摘要: 采用水蒸气蒸馏(SD)法和超临界CO2萃取(SCDE)法从薄荷中提取挥发油,并用GC-MS技术对其化学成分进行了分析.SD法提取薄荷油的出油率为1.15%,SCDE法提取薄荷油的出油率为2.43%.GC-MS分析表明,SD法提取的薄荷油中含44种化学成分,占总挥发油的97%以上,其中薄荷醇相对含量为69.4%;SCDE法提取的挥发油中含38种化学成分,占总挥发油的92%以上,其中薄荷醇相对含量为61.8%.

Abstract: Essential oils were extracted from Mentha haplocalyx Briq. by steam distillation(SD) and supercritical CO2 extraction(SCDE). The chemical components of essential oil were analyzed by GC-MS. The extraction yield of mint oil by SD was 1.15%, and the extraction yield of mint oil by SCDE was 2.43%. The results of GC-MS analysis showed that 44 components from M. haplocalyx Briq. by SD that composed about 97% of the total essential oil, were separated and identified; and 38 components from M. haplocalyx Briq. by SCDE that composed about 92% of the total essential oil,were separated and identified. Relative content of main effective constituent, namely menthol, in the SD oil is 69.4%, and in the SCDE is 61.8%.