Dynamic microwave-assisted extraction of total ginsenosides from ginseng fibrous roots

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• 作者：Yuefei Zhang ; Yali Li ; Zhe Liu ; Ling Zhong…
• 关键词：dynamic microwave ; assisted extraction ; total ginsenosides ; ginseng fibrous root ; O 6 ; 332
• 刊名：Wuhan University Journal of Natural Sciences
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：20
• 期：3
• 页码：247-254
• 全文大小：633 KB
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• 作者单位：Yuefei Zhang (1)
  Yali Li (1)
  Zhe Liu (1)
  Ling Zhong (1)
  Ruan Chi (1)
  Junxia Yu (1)
  
  1. School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430073, Hubei, China
  
• 刊物类别：Mathematics and Statistics
• 刊物主题：Mathematics
  Computer Science, general
  Physics
  Life Sciences
  Chinese Library of Science
  
• 出版者：Wuhan University, co-published with Springer
• ISSN：1993-4998

文摘

A dynamic microwave-assisted extraction (DMAE) method is established for the extraction of total ginsenosides from ginseng fibrous roots. The extraction process has been simulated and its main affection factors (liquid/solid ratio K of solvent to ginseng powders (V/m), irradiation time, irradiation temperature, extracting solution concentration, flow rate of solvent and microwave power) have been optimized by response surface methodology (RSM). The optimum conditions of extraction are the liquid/solid ratio of 270 mL/g, the extraction temperature of 75 °C, the extraction time of 35 min, ethanol concentration of 70% (V/V), the solvent flow rate of 1.3 mL/min, and the microwave power of 500 W. The yield of ginsenosides obtained by the proposed DAME method is (15.0±0.7) %, which is well agreement with the yield predicted by the model. Compared with static microwave-assisted extraction, DMAE has a higher extraction yield and can avoid the degradation of ginsenoside.