10种薄荷含油量及薄荷醇和薄荷酮含量对比分析

Comparative Analysis of the Contents of Volatile Oil,Menthol and Menthone in 10 Kinds of Mentha haplocalyx

利用索氏提取法获得10种薄荷叶、茎的挥发油,并通过气相色谱-质谱联用法和气相色谱法对提取的油进行分析,比较其中薄荷醇和薄荷酮的含量。结果表明:10种薄荷叶的含油量在14.7~33.8 mg/g,其中美国薄荷叶的含油量最高;茎的含油量范围在3.5~11.8 mg/g,其中留兰香茎的含油量最高;叶中薄荷醇含量范围在6.8~11931.4μg/g,其中胡椒2品种的叶薄荷醇含量最高;叶中薄荷酮含量范围在2.6~1492.7μg/g,其中亚洲薄荷的叶薄荷酮含量最高;茎中的薄荷醇含量低于5 000μg/g,薄荷酮含量低于900μg/g。比较薄荷醇和薄荷酮的含量可知,种植胡椒薄荷2和亚洲薄荷两个品种具有较高的经济效益。

Volatile oils in leaves and stems from 10 kinds of Mentha haplocalyx were obtained by Soxhlet extraction.They were analyzed by GC-MS and GC method,their contents of menthol and menthone were compared.The results showed that the oil contents of 10 kinds of Mentha haplocalyx leaves were in the range of 14.7 to 33.8 mg/g,in which,the Monarda didyma was the highest variety.The oil contents of stems were in the range of 3.5 to 11.8 mg/g,in which,the spearmint stems showed the highest.The content of menthol in leaves ranged from 6.8 to 11 931.4 μg/g,in which,the Mentha piperita 2 was the highest.The contents of menthone in leaves ranged from 2.6 to 1 492.7 μg/g,in which,the highest came from Mentha arvensis leaves.The contents of menthol and menthone in stems were lower than 5 mg/g and 0.9 mg/g,respectively.Considering the contents of menthol and menthone,the cultivation of Mentha piperita 2 and Mentha arvensis perspectively has higher economic benefit.