OBJECTIVE:To study the distribution characteristics of germacrone from zedoary turmeric oil (ZTO) in each tis-sue of mice,and to provide reference for further application of zedoary turmeric oil. METHODS:30 KM mice were given zedoary turmeric oil 0.5 mL;6 mice were randomly selected 1,2,4,8,12 h after medication,respectively. The contents of germacrone in heart,liver,spleen,lung and kidney tissues were determined by HPLC. 15 KM mice were selected,medication and sampling method were same as above;3 mice were collected at each time point respectively. The fluorescence intensity of germacrone in above sections were observed by fluorescence. The same number of mice were selected as control in 2 trials. RESULTS:The con-centration of germacrone in each tissue 1-4 h increased gradually as time and reached the peak value at 4 h. The contents of ger-macrone in liver and spleen were significantly higher than in heart and lung. The concentrations of germacrone in each tissue were ranked as liver>spleen>kidney>heart>lung. The results of fluorescence intensity observation was same as above results. CON-CLUSIONS:Results of 2 methods show same distribution characteristics of germacrone in mice tissues,and indicate that ger-macrone is distributed more in liver,spleen and kidney tissues and less in heart and lung.

OBJECTIVE:To optimize the technology conditions of water-soluble chitosan on Huang'e gel water extract solu-tion. METHODS:Using the comprehensive scores of transmittance ratio,impurity removal rate,naringin retention rate as indexes, Box-Behnken response surface method was used to optimize the amount of water-soluble chitosan,shocking time and temperature in clarifying technology,and verification test was conducted. RESULTS:The clarification effect was the best when the volume ra-tio of TCM extract solution with proportion ≥1.3 to amount of 0.01 g/mL water-soluble chitosan was 2.2,shocking for 100 min at 70 ℃. In the verification test,the average transmittance ratio was 87.3%,impurity removal rate was 41.5%,and naringin reten-tion rate was 131.38%. The measured values of comprehensive scores were 97.35%,98.92% and 98.04%,showing relative error of -0.87%,0.73% and -0.16% with the predicted values(98.27%),respectively. CONCLUSIONS:The method can effectively optimize the clarification technology parameters of water-soluble chitosan on Huang'e gel water extract solution.