薄荷不同部位挥发油成分比较研究

Comparison of chemical constituents of volatile oil from different parts of mentha haplocalyx briq

研究武汉地区野生薄荷根茎叶挥发油的成分及含量。用水蒸气蒸馏法(SD)分别提取薄荷不同部位的挥发油,然后用气相色谱-质谱法分析薄荷不同部位挥发油的化学成分。结果表明:叶片挥发油出油率是0.45%,茎挥发油出油率是0.2%,根挥发油出油率是0.02%。用气相色谱-质谱法分析三种不同部位挥发油,共鉴定出43种化合物,叶和茎挥发油主要成分是薄荷醇,根挥发油的主要成分是二十四烷。用薄荷不同部位提取的挥发油含量和成分有较大差别。为获得较高产率的薄荷醇成分,以薄荷叶获取挥发油为最佳原料。

To study the volatile components and contents of roots, stems and leaves from wild Mentha haplocalyx Briq cultivated in Wuhan.The volatile oil of roots, stems and leaves from wild Mentha haplocalyx Briq was extracted by steam distillation（ SD） .The chemical components of volatile oil was analyzed by gas chromatography-mass spec-trometry （GC-MS）.The yield of volatile oil from the leaf was 0.45%, The yield of volatile oil from the stem was 0. 2%, The yield of volatile oil from the roots was 0.02%.43 main vo1atile compounds were identified.Levomentho was main component of volatile oil from the leaf and the stem ,Tetracosane was main component of volatile oil from the root.There was great difference in volatile components and contents which were extracted from different part of Mentha haplocalyx Briq.In order to obtain higher yield of Levomentho, leaf of Mentha haplocalyx Briq was the best Material.