title: [Textual research of medicinal and edible plants in Shanhaijing].
abstract: OBJECTIVE
  To investigate the purification process of total flavones and total tannins from Apocynum venetum leaves with macroreticular resin.
  
  
  METHODS
  The static capacity absorption, dynamic absorption ratio and dynamic elution ratio of different types of macroreticular resins were studied and compared in order to find the best one among the eight macroreticular resins, and the technical process of the type of HPD-400 type macroreticular resin was studied in detail.
  
  
  RESULTS
  The type of HPD-400 type macroreticular resin showed the best comprehensive absorption property with the following technological conditions: the current velocity was 1 BV x h(-1), the volume of distilled water was 2 BV, the eluting reagent was 60% ethanol, and the volume of 60% ethanol was 3 BV.
  
  
  CONCLUSIONS
  The purity of total flavones and total tannins in the product is up to 80% after purified with HPD-400 macroreticular resin. Therefore, this purification process is feasible.
authors: School of Biology Science, Fudan University, Shanghai 200433, China. hldor@163.com
authors: Liang
authors: L
authors: Hu
mesh_terms: D030010:Apocynum / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D047309:Flavones / Q000032:analysis; D010945:Plants, Edible / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D012014:Reference Books, Medical; D013634:Tannins / Q000032:analysis
chemical_list: D004365:Drugs, Chinese Herbal; D047309:Flavones; D013634:Tannins