Study of Effective Ingredient in Huanglianjiedu Decoction under Different Decocting Conditions / 中国中医药信息杂志

ABSTRACT

Objective To analysis the effective ingredients in Huanglianjiedu decoction under different decocting conditions. Methods The detecting method of HPLC was established and the ingredients in Huanglianjiedu decoction under different decocting time and times were analyzed. Result Water- soluble glycoside of gardenoside and baicalin reached balance of dissolution within 20 min and their dissolution rate were about 82% and 60% respectively. Water-soluble alkaloids of berberine and palmatine reached balance of dissolution within 30 min and their dissolution rate were about 45%. The dissolution rate of wogonin was 31% at 60 min. The dissolution rate of Crocin-Ⅰ reached top at 20 min and fell down after 20 min. Decocting times for fat-soluble constitutes was more important than water-soluble constitutes. Conclusion The decocting condition has effect on the dissolution rate and stability of the ingredients in Huanglianjiedu decoction. The decocting condition is very important to the quality control of decoction.