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OBJECTIVE:To establish mathematical model of liquid volume added of TCM medicinal broth decoction machine to accurately calculate liquid volume added in the process of medicinal herb decocting,so as to guarantee the quality of medicinal herb decocting. METHODS:The water absorption rate of representative TCM decoction piece with high use frequency were deter-mined,and cluster analysis of water absorption rate of TCM decoction piece was conducted according to closely related index as density,size,shape,moisture. TCM decoction piece with similar water absorption rate were bracketed together,so that of single ingredient TCM decoction piece can be estimated by water absorption of representative TCM decoction piece;the quantity of water evaporation and liquid extrusion were determined among different types of decoction machine (powered by electric and gas);ac-cording to the above parameters,mathematical model of liquid volume of TCM medicinal broth prepared by different types of de-coction machine had been established,and validated with TCM formula. RESULTS:Factors that affected the liquid volume added included the water absorption of each ingredient,the quantity of water evaporation and extrusion function. The mathematical model was liquid volume added=water absorption of each ingredient × quality of decoction piece+the quantity of water evaporation+re-quired amount of liquid-parameters of extrusion function×total weight of decoction piece;in validation test,the percentage of the practical amount of liquid to required amount was within ±5%. CONCLUSIONS:Established model can promote the accuracy li-quid volume added and guarantee the quality of TCM decoction when using TCM decoction machine.
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OBJECTIVE:To establish the HPLC fingerprints for Sini decoction and compare the differences of compositions of Sini decoction prepared by traditional decoction and modern machine decoction. METHODS:HPLC was performed on the column of Kromasil C18 with mobile phase of acetonitrile-0.1% phosphoric acid(gradient elution)at a flow rate of 1.0 ml/min,the detec-tion wavelength was 235 nm,column temperature was 30 ℃,and injection volume was 10 μl. The HPLC fingerprints of 10 batch-es of Sini decoction were determined with reference peak of liquiritin peaks,and common peak identification and similarity evalua-tion were conducted by using Chromatographic Fingerprint Similarity Evaluation System(2004 A edition). RESULTS:There were 18 common peaks and the similarity was no less than 0.982. According to the verification,the fingerprint of 10 batches of Sini de-coction showed good similarity with reference fingerprint,and the similarity of 10 batches of Sini decoction was high,which was prepared by the 2 methods. CONCLUSIONS:The established fingerprint is specific and stable,and can provide reference for quali-ty evaluation and control for Sini decoction;and there are no obvious differences in the main chemical compositions of Sini decoc-tion prepared by traditional decoction and modern machine decoction.
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This study was aimed to compare different preparation methods of Wei-Chang Fu-Yuan (WCFY) De-coction, which is a self-made traditional Chinese medicine (TCM) decoction of our hospital, through the investiga-tion of difference in recovery time of gastrointestinal function after gynecological abdominal surgery. A total of 120 cases after gynecological abdominal surgery in our hospital between 2011 and 2012 were randomly divided into the treatment group and the control group, with 60 cases in each group. The hospital self-made WCFY Decoction was given to patients 8 hours after surgery in the treatment group and control group. Decoctions given to two groups were prepared with different methods. Decoction given to the treatment group was by the decoction ma-chine of multiple decoctions preparation. Decoction given to the control group was prepared as the traditional sin-gle dose decoction. The first anus flatus time was observed in both groups. The results showed that the flatus time of treatment group was 16 h and that of the control group was 13 h. The flatus time of patients from two groups was in skewed distribution, so the distance between the median and quartile was used to describe. The non-para-metric tests (Kolmogorov-Smirnov method) were used in the comparison of flatus time of two groups. There was statistical significance between two groups (P < 0.05). It was concluded that different preparation methods affect the clinical efficacy of WCFY Decoction. Compared with the traditional single dose decoction, the fist flatus time was postponed 3 hours by the decoction machine of multiple decoctions preparation. Therefore, with the widely using of decoction machine of multiple decoctions preparation today, the function of decoction machine should be improved and the program should be perfected in order to increase the clinical efficacy of this preparation method.
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OBJECTIVE: To compare the yield of cinnaldehydum from Cinnamomum cassia by TCM decoction machine or stainless steel pot at different decoction time, and to determine the appropriate decoction method of C. cassia. METHODS: The content of cinnaldehydum from C. cassia was determined by HPLC. T-test of data and results was conducted. RESULTS: At different decocting time, the yield of cinnaldehydum from C. cassia by TCM extraction machine was higher than by stainless steel pans (P