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  • Title: [Advances in studies on multi-stage countercurrent extraction technology in traditional Chinese medicine].
    Author: Xie ZP, Liu XS, Chen Y, Cai M, Qu HB, Cheng YY.
    Journal: Zhongguo Zhong Yao Za Zhi; 2007 May; 32(10):884-7. PubMed ID: 17655136.
    Abstract:
    Multi-stage countercurrent extraction technology, integrating solvent extraction, repercolation with dynamic and countercurrent extraction, is a novel extraction technology for the traditional Chinese medicine. This solvent-saving, energy-saving and high-extraction-efficiency technology can at the most drive active compounds to diffuse from the herbal materials into the solvent stage by stage by creating concentration differences between the herbal materials and the solvents. This paper reviewed the basic principle, the influence factors and the research progress and trends of the equipments and the application of the multi-stage countercurrent extraction.
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