The Pharmacognostical Study On Peucedanum Praeruptorum Dunn. And Peucedanum Decursivum (Miq.) Maxim

Qian Hu is the root and the rhizome from the umbelliferae peucedanum plant Peucedanum praeruptorum Dunn. and Peucedanum decursivum (Miq.) Maxim..It is used for cough and phlegm multi-asthmas. This topic has conducted pharmacognosy studies to Peucedanum praeruptorum Dunn.and Peucedanum decursivum (Miq.) Maxim., is for the purpose of provides the scientific basis of their quality rating target’s establishment and high-quality resources research and so on.1. By the books of Chinese medicine, on the history, the variety, and the medicinal purpose, the theory basis is provided by clarify the complex Qian Hu variety, reorganize and the excavate the superiority varieties.2. It is discovered that their distinction characteristic in macroscopical and microscopical identification by the morphology research. And the brief transverse structure and the powder micrograph was described.3. It is showed that showed that the Peucedanum praeruptorum Dunn. includes Pd-Ia, while In the Peucedanum decursivum (Miq.) Maxim. includes decursin. Rf 0.38 and 0.90 spot may take two characteristic spots in the TLC distinction by their TLC chromatograph result4. Using the GC-MS, in their volatile oil, what the content is highest is.alpha.-Pinene and other 4 ingredients. The Bornyl chloride,which is contained in the Peucedanum decursivum (Miq.) Maxim., is the only chloride in the ingredients.5. Through the UV, the maximum content of coumarin in Peucedanum praeruptorum Dunn. is Panan-Zhejiang’s and the Xinyang-Henan’s and in Peucedanum decursivum (Miq.) Maxim. is Guidong-Hunan’s and Liuyang-Hunan’s. The differences amont the contents of coumarin which from different commodity origin is tiny.6. The contents of Pd-Ia and decusin of Peucedanum praeruptorum Dunn. and Peucedanum decursivum (Miq.) Maxim. are determinated by HPLC. It is showed that the contents of Pd-Ia in Peucedanum praeruptorum Dunn. are not less than 0.9%, while decursitin in Peucedanum decursivum (Miq.) Maxim. are in 0.252%～0.335%.In the different origin, the maximum content of Pd-Ia is from Pan’an-Zhejiang, the maximum content of decusin is from Liuyang-Hunan. The differences among the contents are tiny. The results consistent of which the detemination.of total coumarins...