title: [Advances in studies on multi-stage countercurrent extraction technology in traditional Chinese medicine].
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.
authors.affiliation: Department of Chinese Medicine Science and Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Zhi-Peng
authors.initials: ZP
authors.lastname: Xie
authors.forename: Xue-Song
authors.initials: XS
authors.lastname: Liu
authors.forename: Yong
authors.initials: Y
authors.lastname: Chen
authors.forename: Ming
authors.initials: M
authors.lastname: Cai
authors.forename: Hai-Bin
authors.initials: HB
authors.lastname: Qu
authors.forename: Yi-Yu
authors.initials: YY
authors.lastname: Cheng
mesh_terms: D003377:Countercurrent Distribution / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000302:isolation & purification*; D010316:Particle Size; D010946:Plants, Medicinal / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D013678:Technology, Pharmaceutical / Q000295:instrumentation / Q000379:methods*; D013696:Temperature; D013997:Time Factors
chemical_list: D004365:Drugs, Chinese Herbal; D012997:Solvents