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Optimization of extraction process of Paoduqinq Lotion by central composite design and response surface methodology |
LUO Yudong1 ZHONG Jiang2 TAN Anqiang1 FANG Gang3 |
1.Pharmaceutical Factory, Guangxi University of Chinese Medicine, Guangxi Zhuang Autonomous Region, Nanning 530023, China;
2.Department of Dermatology & STD, the First Affiliated Hospital of Guangxi University of Chinese Medicine, Guangxi Zhuang Autonomous Region, Nanning 530023, China; 3.Zhuang Medical College, Guangxi University of Chinese Medicine, Guangxi Zhuang Autonomous Region, Nanning 530001, China |
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Abstract Objective To optimize the extraction process of Paoduqinq Lotion and to control its quality. Methods Through central composite design and response surface methodology, using gallic acid and scutellarin content as the indicators, the effects of the amount of water, extraction time, extraction frequency on water extraction process were investigated. The best water extraction process of Paoduqinq Lotion was obtained and varified by pilot scale test. Results The best water extraction process of Paoduqinq Lotion was performed by extracting the decoction with 10 times the amount of water twice, 125 min each time. Conclusion The optimized extraction process with good reproducibility and stable quality can be used as the extraction process of blister lotion.
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