Processing of Yuhuanglian： A Review / 中国实验方剂学杂志

ABSTRACT

Yuhuanglian is one of the representative processed products to change the medicinal properties of Coptidis Rhizoma， which was first published in Hanshi Yitong. Its processing method is to mix Evodiae Fructus juice with Coptidis Rhizoma with stir-frying for drying， that is， Coptidis Rhizoma processed with Evodiae Fructus juice can reduce the bitterness and cold properties on the basis of retaining the effect of purging fire and detoxification， so that Yuhuanglian is cold but not stagnant， which can clear dampness-heat in Qifen， and is effective in treating the liver-qi invading stomach， vomiting and swallowing acid. As a representative variety of processing with medicine juice， Yuhuanglian is included in the 2020 edition of Chinese Pharmacopoeia and local processing standards， and its processing technology research and optimization has been attracting much attention. Modern studies have shown that Yuhuanglian not only contains berberine， jatrorrhizine， palmatine and other components， but also contains evodiamine， rutaecarpine， limonin and other components from Evodiae Fructus， which have anti-inflammatory， antibacterial， anti-tumor and other pharmacological activities. This paper collated and summarized the related research reports of Yuhuanglian in the past 20 years from the perspectives of processing history， efficacy and medicinal properties， quality evaluation and clinical application， and found that the processing methods and standards of Yuhuanglian were quite different in different provinces and cities， mainly involving the preparation and dosage of Evodiae Fructus juice and the criteria for the processing end point. In addition， the changes in the major components of Yuhuanglian before and after processing varied greatly among different studies， presumably related to the different processes and quality standards， this paper summarized the processing history， technology， pharmacodynamics， quality evaluation and clinical application of Yuhuanglian， in order to provide reference for improving its quality evaluation system.