Optimization of Extraction Technology for Corydalis Rhizoma and Sophorae Flavescentis Radix in Liansong Yiboting Tablets by Orthogonal Design with Multi-indexes
LI Yan-ying, WANG Chao, GUO Xiao-yu, et al. Optimization of Extraction Technology for Corydalis Rhizoma and Sophorae Flavescentis Radix in Liansong Yiboting Tablets by Orthogonal Design with Multi-indexes[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(13): 26-28.
LI Yan-ying, WANG Chao, GUO Xiao-yu, et al. Optimization of Extraction Technology for Corydalis Rhizoma and Sophorae Flavescentis Radix in Liansong Yiboting Tablets by Orthogonal Design with Multi-indexes[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(13): 26-28. DOI: 10.13422/j.cnki.syfjx.2014130026.
Objective: To optimize extraction technology of Corydalis Rhizoma and Sophorae Flavescentis Radix in Liansong Yiboting tablets. Method: With extracting amounts of matrine
oxymatrine and tetrahydropalmatine as indexes
orthogonal test and single factor test was adopted to optimize extraction process by taking ethanol concentration
solid-liquid ratio
extracting times and time as factor.HPLC was employed to determine contents of index components with mobile phase of acetonitrile(A)-ammonium dihydrogen phosphate solution(B) for gradient elution(0-10 min
10%A;10-25 min
10%-37%A;25-45 min
37%A) and detection wavelength at 220 nm. Result: Optimum extraction technology was as following:extracted 3 times with 6 times the amount of 70% ethanol for 2 h each time.Extracting amount of tetrahydropalmatine was 332.04 mg
total extracting amount of matrine and oxymatrine was 3 192.08 mg. Conclusion: This optimized extraction technology was stable and feasible
these established chromatographic conditions had a good separation for three components.