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Objective To simultaneously determinate the contents of four active ingredients (Ephedrine Hydrochloride, Pseudoephedrine Hydrochloride, Amygdalin and Glycyrrhizinate) ofSan Ao Decoction by HPLC; To optimize the extracting process ofSan Ao Decoction.Methods The orthogonal test was employed. Volume of water, time of extraction and times of extraction were set as investigation factors; the transport rates of Ephedrine Hydrochloride, Pseudoephedrine Hydrochloride, Amygdalin and Glycyrrhizinate and the extraction rates were set as investigation indexes to conduct multi-indexes grading.Results The influence factors of the extraction ofSao Ao Decoction were the times of extraction > decoction time > the volume of water. The best extraction condition was: ten fold water; extract for three times; 1 h for each time.Conclusion The optimized extraction process is stable and feasible.
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OBJECTIVE: To determine the optimum ultrasonic-assisted extracting process of total flavonoids from Zingiber mioga by response surface methodology, and then study the antioxidant activity of the extract. METHODS: On the basis of single factor experiments, a 4-factor, 3-level Box-Behnken center-united experiment was conducted. The Box-Behnken experiment analyzed and optimized the processing conditions by response surface methodology, then the antioxidant activity of the extract was determined. RESULTS: The optimum conditions at ultrasonic power of 300 W were as follows treatment temperature 60℃, ethanol concentration 85.99%, liquid-to-solid ratio 98.08 mL·g-1, treatment time 15 min. Under the optimum conditions, the extraction rate of the total flavonoids was 37.01%, with a bias of 4.28% compared with the predicted value of 35.49%; the reducing power of the total flavonoids from Zingiber mioga at the concentration of 1.038 7 mg·mL-1 was equal to that of vitamin C of 56.60 μg·mL-1; the ·OH radical scavenging ratio of the total flavonoids from Zingiber mioga was 73.07%, the DPPH radical scavenging ratio was 65.72%, and the inhibition rate of anti-lipid peroxidation was 49.94%. CONCLUSION: The total flavonoids from Zingiber mioga can be developed as a new type of antioxidant agents, and regression analysis and parameter optimization of the extracting process can be conducted by using response surface methodology.
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Objective To study the optimum process for Suanzaoren granules,and to optimize the ethanol-extracting process for jujuboside A in Semen Ziziphi Spinosae.Methods With the extracting rate of jujuboside A as the index,HPLC was used to determine the content of jujuboside A in extracted solution and the extracting conditions were optimized by orthogonal design.Results The optimum extracting condition was adding 8 times amount of 70% ethanol and refluxing for 60 min,then adding 6 times amount of 70% ethanol,refluxing and extracting for 40 min(two times).Conclusion The optimized process is stable and highly efficient.
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Objective To control the quality of Danlong Kangchi Capsules, fully extract efficiency ingredients and ensure the therapeutic effect by studying the extraction process of the capsule. Methods With the extracting quantity of tanshinoneⅡA, ginsenoside Rb1 and Rg1, Icariin and extract ratio as indexes, the better process parameters with ethanol or water extracting were selected by simple factor test and orthogonal test to Danlong Kangchi Capsules. Results The herbs such as root of red-rooted salvia were extracted by 75% ethanol as a solvent, reflux extracting two times, adding 8 times and 6 times solvent volume respectively, extracting 1.5 and 1.0 hour respectively. Dregs after ethanol extracting and the herbs such as herba Epimedii were decocted by waters soaking 0.5 hour, extracting two times, adding 12 times and 10 times solvent volume respectively, extracting 2.0 and 1.5 hours respectively. Conclusions Extracting processes were validated to be stable and feasible.
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Objective To optimize the preparation process of Xuefuzhuyu Mixture. Methods Using the extracting rate of paeoniflorin as main indicator, the content of extracting as reference indicators, the extracting process was studied by L9(34) orthogonal method. Enrichment technique was reviewed by concentrated methods and levels. Centrifugal process was reviewed by speed and time. Results The optimum extracting procedure of Xuefuzhuyu Mixture was by 10 times of water soaking for 1 h, then decocting for 60 min and 2 times. Using decompressed enrichment, mixture was enriched 1 g herbs/1 mL. Clarify solution will be received if the condition up to 4 000 r/min and run more than 7 min. Conclusion The preparation process is reasonable and viable.
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Object To optimize the extraction conditions of Fumai Decoction. Methods Uniform design test was used, and the contents of glycyrrhizinic acid and ginsenoside Rb 1 in extracted solvent were determined by HPLC. Results The ethanol volume and the extracting temperature in the uniform test impacted the test remakably. The best extraction process of Fumai Decoction as follows: the raw drugs were extracted by 10 times of 50% ethanol at 60 ℃ for 4 hours. Conclusion Glycyrrhetinic acid and ginsenoside Rb 1 contents in Fumai Decoction are higher according to the above extraction process.
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OBJECTIVE: To optimize the extraction process of Fructus Schisandrae Chinensis. METHODS: Taking the contents of schizandrin, schisantherin A, deoxyschizandrin, r-schizandrin as the indexes, the influence on the extraction process by extract solvent and medicinal material particle diameter was examined, and the extraction parameters were optimized. RESULTS: Active components of Fructus Schisandrae Chinensis, after the medicinal material being crushed, can be effectively utilized through extracting by alcohol. The optimized extraction parameters were as follows: the medical material being ground into 40 meshes, extracted twice by 70% alcohol, 2 hours per time. CONCLUSION: The optimized extracting process works better than current technique adopted for formulated granule preparation, and can ensure quality to the highest degree.