30 results about "Tormentic acid" patented technology

The invention discloses a method for establishing a fingerprint of the golden cherry root and a method for detecting the quality of the golden cherry root. The construction method includes the preparation of the test solution and the process of HPLC analysis and detection, and the fingerprint of the golden cherry root can be obtained. The construction method obtained by the invention through a large number of experiments has the advantages of simple operation, short time-consuming for the preparation of the test solution, good precision, good repeatability, good stability, many characteristic peaks, accurate and reliable detection, and can be used for the quality detection of golden cherry root medicinal materials , which provides high quality control standards for drug production and testing to ensure the stability of product quality and the safety and effectiveness of drug use. At the same time, piroside, rosin, salicylic acid, rosanic acid, and virginic acid are all important triterpenoid active components in golden cherry root, which have a great influence on the efficacy of golden cherry root. Control the content of important triterpenoid active ingredients, so as to control the quality and efficacy of golden cherry root medicinal materials.

The invention relates to a preparation method for triterpene acid of loquat leaf and the function of lowering the blood glucose. The preparation method comprises that dry loquat leaves are firstly extracted by ethanol or methanol with certain concentration, reclaimed in ethanol with low condensation for sedimentation, and centrifuged, precipitated and refluxing-decolorized with diatomite or done with chromatography with siliceous earth column, and then eluted with ethanol and reclaimed in condition of decompression and dried to obtain the triterpene acid of loquat leaf. Total content of ursolic acid, oleanolic acid, maslinic acid, corosolic acid and tormentic acid in the triterpene acid reaches more than 50 percent (by weight), wherein, the content of the tormentic acid is to be 10-30 percent, the maslinic acid 4-20 percent, the corosolic acid 5-20 percent, the oleanolic acid 1-10 percent and the ursolic acid 5-20 percent. The triterpene acid of loquat leaf prepared by the invention can be used for curing diabetes mellitus or preparing pharmaceutic preparations used for treating diabetes mellitus and diabetic complication.