Influencing factors in scale-up of extraction process for Yunpi Xiaoshi Prescription / 中成药

AIM To investigate the influencing factors in scale-up of extraction process for Yunpi Xiaoshi Prescription.METHODS HPLC was adopted in the content determination of catechin,ferulic acid,taxifolin,isovitexin,narirutin,atractylenolideⅡ,naringin,morin,hesperidin,luteolin,hederagenin,atractylenolideⅠ,naringenin and hesperetin,the fingerprints were established,after which the effects of container volume,optimal fire and feeding quantity on the contents of various constituents were evaluated.RESULTS Fifteen batches of samples demonstrated the similarities of more than 0.995.Fourteen constituents showed good linear relationships within their own ranges(r>0.999 0),whose average recoveries were 96.4%-103.3%with the RSDs of 0.5%-2.7%.The influencing degree of optimal fire was greater than that of container volume and feeding quantity.CONCLUSION The combination of multi-component content determination and fingerprints can provide data basis and theoretical reference for the technology of consistency evaluation in scale-up of extraction process for Yunpi Xiaoshi Prescription.

Establishment of HPLC fingerprints and determination of eleven constituents for Qiangxin Mixture / 中成药

AIM To establish the HPLC fingerprints for Qiangxin Mixture,and to determine the contents of quercetin-3-O-β-D glucose 7-O-β-D gentil disglycoside(QGG),sinarin thiocyanate,erucinic acid,macrocetin,calycosin-7-glucoside,plananthine D,calycosin,baicalin,pilonidin,atracolactone Ⅲ and methylophiopogon dihydrogen isoflavone B.METHODS The analysis of methanol extract of this drug was performed on a 40℃thermostatic Agilent Eclipse XDB-C18 column(4.6 mm×250 mm,5 μm),with the mobile phase comprising of acetonitrile-0.01 mol/L phosphoric acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelength was set at 230 nm.RESULTS There were twenty common peaks in the fingerprints for fifteen batches of samples with the similarities of more than 0.930.Eleven constituents showed good linear relationships within their own ranges(r≥0.999 1),whose average recoveries were 98.47%-102.85%with the RSDs of 0.76%-1.74%.CONCLUSION This accurate and stable method can be used for the quality control of Qiangxin Mixture.