ABSTRACT
Due to the multi-component and multi-target features of Chinese medicinal materials (CMMs),multiple active components could be more reasonably represent the quality of CMMs compared with the single-component QC mode. However,it is still difficult to apply the multi-component QC mode because of the instability, high cost and inaccessibility of reference substances of CMMs. Saponins are glycosides with aglycones of triterpene or spirostane and widely distributed in plants. Saponins are also the major active constituents of many CMMs,with multi-effects of inhibiting tumors,regulating the immune system,inhibiting virus,preventing and treating cardiovascular diseases. Therefore,rational and effective control of the quality of CMMs containing saponins is of great significance for ensuring the clinical safety and efficacy of such CMMs and related products. The quantitative analysis of multi-components by single marker (QAMS) can use only one reference substance to achieve the simultaneous monitoring of multiple components in CMMs,and make up the weaknesses of multi-component QC mode, and has been well developed and validated in the QC and evaluation of CMMs for more than ten years since it was put forward. And now it has been widely used in the QC of CMMs containing saponins. Based on the investigation of QAMS theory and literatures in the past decade,studies on the QC of CMMs and related preparations containing triterpenoid saponins and steroidal saponins by QAMS were summarized and discussed systematically. In addition,some possible problems were analyzed and interpreted,in order to provide reliable basis for more QC of CMMs and reference for the continuous use and in-depth development of this method in the research of CMMs.
ABSTRACT
Objective: To optimize the purification technology of saponins in steamed Panax notoginseng with macroporous resin. Methods: The main factors affecting the purification process were screened by failure mode and effects analysis (FMEA). The purification method with macroporous resin was optimized by central combination design-response surface method (CCD-RSM) based on the recovery and purity of saponins. In this experiment, the concentration of sample solution, loading volume, washing volume, ethanol concentration, and ethanol elution volume were used to investigate the purification of saponins in steamed P. notoginseng. Results: The optimized purification process with macroporous resin was as follows: maximum recovery (82.81%) and purity (77.24%) of saponins were obtained with the concentration of saponin solution of 11.22 mg/mL, loading volume of 4.97 BV, washing volume of 2 BV, ethanol concentration of 70%, and ethanol elution volume of 3.31 BV. Conclusion: The optimized purification process based on FMEA and CCD-RSM is convenient and stable, with high recovery and purity of saponins, which has a certain practical value.