Biological Titer Determination of Traditional She Medicine-Gardeniae Radix / 中国药师

ABSTRACT

Objective: To study the antimicrobial effectiveness against traditional She medicine-Gardeniae Radix and determine the titer of Gardeniae Radix.Methods: The antibacterial activity of five standard strains(Escherichia coli , Staphylococcus aureus , Pseudomonas aeruginosa , Candida albicans and Aspergillus niger)was investigated.A method for the biological value evaluation of Gardeniae Radix was established by using a turbidity method, and compared with the content of chikusetsu saponin Ⅳa determined by HPLC.Results: The sensitivity of Gardeniae Radix to Staphylococcus aureus and Escherichia coli was high.The recovery of the turbidity method was within the range of 90%-110%, and the reliability limit rate was less than 5%.The content of chikusetsu saponin Ⅳa in Gardeniae Radix was not completely consistent with the result of the bioassay method.Conclusion: The bioassay method established in the experiment can be one of the methods for the quality evaluation of Gardeniae Radix.