| Dijiao was first shown in Song dynasty works named"jiayoubencao",and it is also recorded in many Herbal and modern medicine works. it has Flavour essien, bitter warm of its nature, a small drug, Temperature cold offered, Invigorating spleen and help digestion, dispel the wind and analgesia, Treatment stomach cold sore, small abdominal distension full, indigestion, general pain, a toothache.Dijiao has a long folk "medicine and food" history in shanxi,and it is also one of the famous Chinese herbal medicine in shaanxi.Dijiao is the Labiatae Thymus herb Thymus mongolicus Ronn.'s overground part. It is mainly produced in shaanxi, ningxia, gansu, northeast, north China and henan, shaanxi qinling and shanbei is widely distributed, it has abundant resourcesand important value to exploited.This paper has Di jiao medicinal material quality control systematically studied and discussed,and Provide the technical basis and theoretical basis for Dijiao medicinal material quality standards.The paper has five parts, document research; Dijiao quality standard research; Dijiao medicinal material quality standards formulated ; it's drafting explain; The preliminary draft of DNA molecular marker research.Through literature study, Dijiao,s medicinal material quality research present situation and materia textual research idea and method should be Master. To make Sure medicinal material breed source, exam Dijiao from the characters, microscopic, chemical, and other aspects of Dijiao were qualitatively. By water, ash (total ash and acid insoluble ash), extract (alcohol-soluble) and content (Thymol Crystals and carvacrol ) on a quantitative study of Dijiao. Meanwhile ,make a discussed study on it's medicinal materials DNA molecular marker (ISSR molecular marker) , Gain it's preliminary molecules pharmacognosy's based material . |