WANG Yuan, CHEN Liang, LIU Zhi-wen, et al. Optimization of Extraction Process of Qinghou Liyan Buccal Tablets by Response Surface Methodology[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(4): 20-23.
WANG Yuan, CHEN Liang, LIU Zhi-wen, et al. Optimization of Extraction Process of Qinghou Liyan Buccal Tablets by Response Surface Methodology[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(4): 20-23. DOI: 10.13422/j.cnki.syfjx.2016040020.
Objective: To optimize extraction process of Qinghou Liyan buccal tablets
and provide references for its pilot production. Method: Based on pre-experiments
effects of soaking time
solvent dosage and extracting time on overall desibirability of contents of chlorogenic acid and totale flavonoids (included rutin
liquiritin and luteolin-7-O-glucoside) were investigated and forecasted by response surface metholodgy.HPLC was used to determine contents of chlorogenic acid and three flavonoids with mobile phase of acetonitrile-0.5% phosphoric acid for gradient elution and detection wavelengthes of 327 nm and 256 nm. Result: Optimal extraction process was as following:soaked 89 minutes and extracted twice with 15.3 times the amout of water for per time of 136 minutes.Concentrations of chlorogenic acid
luteolin-7-O-glucoside
rutin and liquiritin were 1 843.537
184.845
93.939
48.898 mg · L-1. Conclusion: This opimized extraction technology is stable and feasible with well prediction
it provides references for pilot production of Qinghou Liyan buccal tablets.