title: [Dynamic accumulation of effective components and biomass of Coptis chinensis in Hongya county].
abstract: OBJECTIVE
  To study the dynamic accumulation of the effective components and biomass of Coptis chinensis, so to provide the experimental date of optimal harvest time for C. chinensis in Hongya county.
  
  
  METHODS
  The samples of three to five years were gathered from the same field and time. The biomass was analyzed by weighed. The jatrorrhizine, columbamine, epiberberine, coptisine, palmatine and berberine in C. chinensis were analyzed by HPLC.
  
  
  RESULTS
  With the increasing of years of growth, the rootstalk biomass of C. chinensis was increasing continuously. The biomass growth of four-year-old C. chinensis was the fastest in the year. From September to October was the fastest season of the growth of rootstalk. The dynamic accumulation in rootstalk C. chinensis had regularity in the certain extend. The contents of six alkaloids and all alkaloids in 4-year-old C. chinensis were more than that in 3-years-old and 5-year-old. The contents of six alkaloids were mostly highest in August. From July to December, there is no significant difference in the contents of columbamine, epiberberine, coptisine, palmatine, berberine and all alkaloids in 4-years-old C. chinensis.
  
  
  CONCLUSIONS
  According to the biomass and the accumulation pattern of the effective components in the C. chinensis, the optimal harvest time is from September to October of 4-year-old C. chinensis.
authors.affiliation: Institute of Material Medical Planting, Chongqing Academy of Chinese Materia Medica/Chongqing Engineering Research Center for Fine Variety Breeding Techniques of Chinese Materia Medica, Chongqing 400065, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
authors.forename: Xianyou
authors.initials: X
authors.lastname: Qu
authors.forename: Guoyue
authors.initials: G
authors.lastname: Zhong
authors.forename: Longyun
authors.initials: L
authors.lastname: Li
authors.forename: Weizao
authors.initials: W
authors.lastname: Luo
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Fujun
authors.initials: F
authors.lastname: Yin
mesh_terms: D000470:Alkaloids / Q000032:analysis; D018533:Biomass; D039323:Coptis / Q000737:chemistry / Q000378:metabolism*; D012621:Seasons
chemical_list: D000470:Alkaloids