title: [Influence of superfine grinding technology on extracting flavones from plantain].
abstract: OBJECTIVE
  To study the influence of superfine grinding technology on extracting flavones from plantain and explore its optimum extraction technology.
  
  
  METHODS
  Ultrasonic technology was used to extract the flavones in superfine grinding plantain, the content of flavone glycosides was determined by RP-HPLC.
  
  
  RESULTS
  The optimum technology was as follows: the concentration of ethanol was 60%, temperature was 60 degrees C, solid-liquid ratio (g:mL) was 1:20 and extraction time was 20 min. Under these conditions, flavonoids extraction rate of superfine grinding powder was higher than that of conventional powder.
  
  
  CONCLUSIONS
  The technology of superfine grinding can improve flavonoids extraction rate in plantain. An optimum method for extracting flavonoids from superfine granding plantain is established.
authors.affiliation: Shaoyang Medical College, Shaoyang 422000, China. limingjuan01@126.com
authors.forename: Ming-Juan
authors.initials: MJ
authors.lastname: Li
authors.affiliation: Shaoyang Medical College, Shaoyang 422000, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Zhu
authors.affiliation: Shaoyang Medical College, Shaoyang 422000, China.
authors.forename: Liu-Cheng
authors.initials: LC
authors.lastname: Liu
authors.affiliation: Hunan University of Chinese Medicine, Changsha 410000, China.
authors.forename: Rong-Dong
authors.initials: RD
authors.lastname: Li
mesh_terms: D002851:Chromatography, High Pressure Liquid; D000431:Ethanol; D047309:Flavones / Q000302:isolation & purification*; D005419:Flavonoids; D005638:Fruit; D010943:Plantago / Q000737:chemistry*; D011208:Powders; D013696:Temperature; D014465:Ultrasonics
chemical_list: D047309:Flavones; D005419:Flavonoids; D011208:Powders; D000431:Ethanol; C043562:flavone