title: [Influence of harvest times and processing methods on contents of total flavonoids and total saponins in roots of Ophiopogon japonicus].
abstract: OBJECTIVE
  To study the patterns of dynamic accumulation of total flavonoids and total saponins in the roots of Ophiopogon japonicus collected from different harvest times, and compare the contents of total flavonoids and total saponins in roots of O. japonicus which were processed with different methods.
  
  
  METHODS
  The total flavonoids and total saponins contents in O. japonicus were determined by ultraviolet spectrophotometry.
  
  
  CONCLUSIONS
  From December to January, the total contents of flavonoids and saponins in the roots of O. japonicus gradually decreased, and gradually increased from February to March, and kept stable in April. The contents of total flavonoids and total saponins in the O. japonicus were influenced by different processing methods.
authors.affiliation: Department of Resources Science of Traditional Chinese Medicines, China Pharmaceutical University, Nanjing 211198, China.
authors.forename: Chang
authors.initials: C
authors.lastname: Jiang
authors.forename: Yuan
authors.initials: Y
authors.lastname: Wang
authors.forename: Minjian
authors.initials: M
authors.lastname: Qin
authors.forename: Jin
authors.initials: J
authors.lastname: Qi
authors.forename: Boyang
authors.initials: B
authors.lastname: Yu
authors.forename: Li
authors.initials: L
authors.lastname: Tang
authors.forename: Panhui
authors.initials: P
authors.lastname: Xu
mesh_terms: D003890:Desiccation; D005419:Flavonoids / Q000032:analysis / Q000378:metabolism*; D031441:Ophiopogon / Q000737:chemistry / Q000378:metabolism*; D018517:Plant Roots / Q000737:chemistry / Q000378:metabolism*; D012503:Saponins / Q000032:analysis / Q000378:metabolism*; D012621:Seasons; D013696:Temperature; D013997:Time Factors
chemical_list: D005419:Flavonoids; D012503:Saponins