Quick finding of absorption ingredients of Paeoniae Radix Alba by SEMAC / 中国中药杂志

<p><b>OBJECTIVE</b>To establish a method for quick finding of the absorption ingredients of Paeoniae Radix Alba in order to select the index of quality control.</p><p><b>METHOD</b>The absorption ingredients of three concentration of Paeoniae Radix Alba were investigated with the in vitro-everted intestinal sac (VEIS) model. The intestinal sac fluids of jejunum and ileum were collected in different time and detected by HPLC. The accumulative absorption quantity of albiflorin and paeoniflorin were calculated, respectively.</p><p><b>RESULT</b>Five ingredients could be detected. In different concentrations of Paeoniae Radix Alba, albiflorin and paeoniflorin in various intestinal sections were the linear absorption (R2 > 0.9), conformed to the zero order absorption rate. The values of Ka in the jejunum and ileum were increased along with the raised dosage of the Paeoniae Radix Alba (P < 0.05), indicating a passive absorption manner.</p><p><b>CONCLUSION</b>SEMAC could be used as a tool to find the absorption ingredients of Paeoniae Radix Alba. Compared with the jejunum, the ileum could provide the more absorption information. It was showed that the optimal detecting time was 60 min.</p>

Study on absorption ingredients of Plantaginis semen by in vitro everted intestinal sac method / 中国中药杂志

<p><b>OBJECTIVE</b>To establish a method for quick investigating the absorption ingredients of Plantaginis semen and guiding the index selection for its quality control.</p><p><b>METHOD</b>The absorption of three concentrations of Plantaginis semem was investigated with the in vitro everted intestinal sac (VEIS) model The intestinal sac contents of jejunum and ileum were collected at different time and geniposidic acid was detected by HPLC and LC-MS(n) as the representative marker.</p><p><b>RESULT</b>Six ingredients could be detected. At different concentrations of Plantaginis semen, geniposidic acid tested by VEIS showed that there was a good linear correlation between the drug absorption from the medium across the intestinal epithelium into the sac contents in various intestines section. The absorption of the gut sacs from 0 to 90 min manifested a significant time-dependent manner. The Ka of geniposidic acid in the jejunum and ileum increased along with the raised dosage of the Plantaginis Semen (P < 0.05), which indicated a passive absorption manner.</p><p><b>CONCLUSION</b>This method can be used as a tool to investigate the absorption ingredients of Plantaginis Semen. Comparing with the jejunum, the ileum can provide more absorption information faster. The optimal incubation time in intestinal sac was 90 min.</p>

Analysis of processing principle of Fructus Schisandrae Sphenantherae by steaming with wine / 中成药

AIM: To study the processing principle of Fructus Schisandrae Sphenantherae steamed with wine. METHODS: The content of volatile oil was measured by means of volatile oil measuring method and identified by TLC. The total lignans was determined by spectrophotometry and the water-soluble extractive was measured by determination of extractive method. RESULTS: The volatile oil content in Fruetus Schisandrae Sphenantherae by steaming with wine decreased by 35.3%, TLC showed that a new spot was added; the lignans content had an increase of 28.9% and the water extractive was 2% less than in crude drug. CONCLUSION: Tranditional process is reasonable.