title: [The relationship between the quality and the leaf shape of Magnolia officinalis produced in Hubei enshi].
abstract: OBJECTIVE
  To reveal the relationship between the quality and the leaf shape of Magnolia officinalis produced in Hubei Enshi.
  
  
  METHODS
  Determined the content of magnolol and honokiol by HPLC with methanol-water (78:22) and the detective wavelength was 294 nm.
  
  
  RESULTS
  The content of magnolol and honokiol in the leaf of Magnolia officinalis was usually higher if the leaf apex was convex and the leaves were short. In certain years, the content of magnolol and honokiol in Cortex Magnoliae officinalis was positively correlated with the bark thickness.
  
  
  CONCLUSIONS
  The leaf shape of Magnolia officinalis produced in Hubei Enshi is directly related to the phenolic content of leaf itself. But it has nothing to do with the content of magnolol and honokiol in Cortex Magnoliae officinalis.
authors.affiliation: School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China. yanghb321@126.com
authors.forename: Hong-Bing
authors.initials: HB
authors.lastname: Yang
authors.forename: Lei
authors.initials: L
authors.lastname: Shi
authors.forename: Jie-Jing
authors.initials: JJ
authors.lastname: Yu
authors.forename: Ming-Ming
authors.initials: MM
authors.lastname: Li
mesh_terms: D001713:Biphenyl Compounds / Q000032:analysis*; D002681:China; D002851:Chromatography, High Pressure Liquid; D017705:Lignans / Q000032:analysis*; D031566:Magnolia / Q000033:anatomy & histology / Q000737:chemistry*; D024301:Plant Bark / Q000033:anatomy & histology / Q000737:chemistry; D018515:Plant Leaves / Q000033:anatomy & histology* / Q000737:chemistry*; D010946:Plants, Medicinal / Q000033:anatomy & histology / Q000737:chemistry; D011786:Quality Control; D000498:Allyl Compounds; D010636:Phenols
chemical_list: D001713:Biphenyl Compounds; D017705:Lignans; C005498:magnolol; C005499:honokiol; D000498:Allyl Compounds; D010636:Phenols