GC-MS分析不同方法提取的樟树叶挥发油成分

摘要

为确定樟树叶挥发油最佳的提取方法，采用传统水蒸气蒸馏法、微波辅助蒸馏法、超声波辅助蒸馏法和同时蒸馏萃取法提取樟树叶挥发油，并用GC-MS法对其化学成分进行分析比较。实验结果，MAHD挥发油得率为3.1%，略高于SDE的2.8%。4种提取方法所得挥发油共鉴定出79种化学成分，共有成分达到37种，其主要组成成分相近，主要为芳樟醇（64.156%～69.464%）、石竹烯（3.188%～3.814%）、桉叶油醇（2.559%～3.511%）、樟脑（2.015%～4.215%）等。综合分析，SDE成本投入少，简便，耗时短，是一种高效快速提取植物性挥发油的方法。%In this paper, the volatile oil form the Cinnamomum camphora leaves was obtained by hydro-distillation (HD), microwave assisted hydro-distillation (MAHD), ultrasound assisted hydro-distillation (UAHD) and simultaneous distillation extraction (SDE) method. Then its chemical composition was analyzed and compared by gas chromatography mass spectrometry(GC-MS). The results showed that the yield of MAHD was 3.1%, which was a little more than that of SDE(2.8%). 79 chemical constituents were separated and identified from above methods, there were 37 common components. The main compounds were linalool(64.156%~69.464%), caryophyllene(3.188%~3.814%), eucalyptol(2.559%~3.511%), camphor(2.559%~3.511%), etc. The SDE method offers important over traditional method, lower cost, easy and shorter extraction time. So SDE is an effective method for extract volatile oil from aromatic plants and has advantages of higher yield and quick exaction.