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

  • Physics and Chemistry
  • Published:
Wuhan University Journal of Natural Sciences

Abstract

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.

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Authors and Affiliations

  1. School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430073, Hubei, China

    Yuefei Zhang, Yali Li, Zhe Liu, Ling Zhong, Ruan Chi & Junxia Yu

Authors
  1. Yuefei Zhang
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  2. Yali Li
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  3. Zhe Liu
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  4. Ling Zhong
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  5. Ruan Chi
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  6. Junxia Yu
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Corresponding author

Correspondence to Yuefei Zhang.

Additional information

Foundation item: Supported by the National Natural Science Foundation of China (21006075), the Natural Science Foundation of Hubei Province (2014CFA115), the New Century Excellent Talents in University (NCET-11-0966), and the Key Project of Chinese Ministry of Education (213024A)

Biography: ZHANG Yuefei, female, Associate professor, Ph.D., research direction: separation and purification of natural product.

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Zhang, Y., Li, Y., Liu, Z. et al. Dynamic microwave-assisted extraction of total ginsenosides from ginseng fibrous roots. Wuhan Univ. J. Nat. Sci. 20, 247–254 (2015). https://doi.org/10.1007/s11859-015-1089-6

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  • DOI: https://doi.org/10.1007/s11859-015-1089-6

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