title: [Study on extraction process for the icariin of hugu capsule with ultrasonic technology].
abstract: OBJECTIVE
  To study the best ultrasonic technology of the extraction of icariin of Hugu capsule.
  
  
  METHODS
  Used the content of icariin as index, orthogonal experiment was carried out to investigate 4 influential factors as follows: the ultrasonic power (A), the ultrasonic frequency (B), the material fluid ratio (C), the time (D).
  
  
  RESULTS
  The best extraction conditions were as follows: the ultrasonic power was 120 W, the ultrasonic frequency was 28 KHz, solid-liquid ratio of 1 : 35, the extraction time was 10 min.
  
  
  CONCLUSIONS
  Optimization of extracting process is simple, quick and low energy consumption. Under these conditions, the extraction of icariin is 1.8 times higher than that of the traditional extraction method.
authors.affiliation: School of Life Science and Pharmacopedia, Guangdong Pharmaceutical Universtiy, Guangzhou 510006, China. jhh--214@163.com
authors.forename: Huan-Huan
authors.initials: HH
authors.lastname: Jia
authors.forename: Jian-Lin
authors.initials: JL
authors.lastname: Gao
authors.forename: Wen
authors.initials: W
authors.lastname: Zeng
authors.forename: Zhong-Hua
authors.initials: ZH
authors.lastname: Qin
authors.forename: Ying-Bin
authors.initials: YB
authors.lastname: Li
authors.forename: Chao
authors.initials: C
authors.lastname: Wan
authors.forename: Zhao-Li
authors.initials: ZL
authors.lastname: Zeng
authors.forename: Qing-Nan
authors.initials: QN
authors.lastname: Li
mesh_terms: D002214:Capsules; D002851:Chromatography, High Pressure Liquid; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D005419:Flavonoids / Q000032:analysis / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry; D012997:Solvents / Q000737:chemistry; D013678:Technology, Pharmaceutical / Q000379:methods*; D013997:Time Factors; D014465:Ultrasonics
chemical_list: D002214:Capsules; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal; D005419:Flavonoids; D012997:Solvents; C056599:icariin