湖北恩施产厚朴叶形变化与药材质量的关系初探

The Relationship between the Quality and the Leaf Shape of Magnolia officinalis Produced in Hubei Enshi

目的:探索湖北恩施产厚朴叶形变化与药材质量的关系。方法:采用高效液相色谱法测定厚朴酚、和厚朴酚含量,流动相为甲醇-水(78∶22),检测波长为294 nm。结果:叶先端凸尖者、叶片短小者,厚朴叶的酚含量通常较高;在一定年限之内,树皮较厚者,厚朴皮的酚含量较高。结论:湖北恩施产厚朴叶形变化与叶自身酚含量的高低直接相关,与药材质量关联性不强。

Objective：To reveal the relationship between the quality and the leaf shape of Magnolia officinalis produced in Hubei Enshi.Methods：Determined the content of magnolol and honokiol by HPLC with methanol-water（78∶ 22）and the detective wavelength was 294 nm.Results：The content of magnolol and honokiol in the leaf of Magnolia officinalis was usually higher if the leaf apex was convex and the leaves were short.In certain years,the content of magnolol and honokiol in Cortex Magnoliae officinalis was positively correlated with the bark thickness.Conclusion：The leaf shape of Magnolia officinalis produced in Hubei Enshi is directly related to the phenolic content of leaf itself.But it has nothing to do with the content of magnolol and honokiol in Cortex Magnoliae officinalis.