野生与栽培黄芩的比较研究

Comparative study on the quality of natural and planting Radix Scutellariae

关键词:  黄芩  黄芩苷  无机元素

Key words:  Scutellaria baicalensis Georgi  baicalin  inorganic element

摘要:

[目的]黄芩为大宗常用中药,具有较高应用价值和良好开发前景。通过对野生黄芩与栽培黄芩进行生药学比较,对主要有效成分黄芩苷及微量元素的含量进行比较,旨在对黄芩的质量评价及GAP标准化种植提供一定的科学理论依据。[方法]对黄芩药材做性状比较、组织比较、粉末比较、理化鉴别比较;采用高效液相色谱法进行黄芩苷含量的测定,采用火焰原子吸收法进行了4种无机元素的含量测定。[结果]栽培黄芩和野生黄芩因为生长环境的差异在性状上产生了一定的变异;组织结构和化学成分基本一致;有效成分黄芩苷的含量,栽培黄芩大于野生黄芩;无机元素Mn、Zn、K的含量,野生黄芩大于栽培黄芩。[结论]栽培黄芩可作为黄芩商品的来源代替野生黄芩。

Abstract:

[Objective] Radix Scutellariae,the dried roots of Scutellaria baicalensis Georgi (Labiatae),was a well-known traditional Chinese medicine,having a relatively high applied cost and good ready market. The aim of this experiment was to evaluate the quality of Radix Scutellariae and provide the scientific foundation for the GAP standardization for planting by comparing the trait,the micro identification,the physical chemistry identification,the content of virtual components and microelement between natural and planting Radix Scutellariae. [Methods] The trait,the issue,the powder,the physical chemistry were compared by the science of Chinese medicine testimony; Virtual components baicalin extracted by the science of Chinese medicine extractional regurgitation and the content of the virtual components determined by the HPLC; The content of four inorganic elements was also determined by the atomic absorption spectrometer. [Results] There was some variation in trait of the two because they live in deferent place and substantial agreement on the construction of the issue and the chemical composition; the planting was higher in the content of baicalin,lower in the content of the inorganic element-Mn,Zn,K than the natural. [Conclusions] The natural can be replaced by the planting as the merchandise resources of the Scutellaria baicalensis Georgi.