title: [Determination of magnolol and honokiol in 3 species of houpo (corter Magnoliae) of different ages by HPLC].
abstract: Based on the method of assessing the growing age of trees by "annual ring in the bark", the active ingredients magnolol and honokiol in 3 species Houpo (Magnolia officinalis, M. biloba, M. rostrata) of different ages, were determined by HPLC. The results present a reference for defining the reasonable period of collection and quality evaluation of Houpo.
authors.affiliation: Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing.
authors.forename: Z
authors.initials: Z
authors.lastname: Zhao
authors.forename: M
authors.initials: M
authors.lastname: Hu
authors.forename: X
authors.initials: X
authors.lastname: Tang
mesh_terms: D001713:Biphenyl Compounds / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D017705:Lignans; D010946:Plants, Medicinal / Q000737:chemistry* / Q000145:classification; D011786:Quality Control; D013045:Species Specificity; D013997:Time Factors; D000498:Allyl Compounds; D010636:Phenols
chemical_list: D001713:Biphenyl Compounds; D004365:Drugs, Chinese Herbal; D017705:Lignans; C005498:magnolol; C005499:honokiol; D000498:Allyl Compounds; D010636:Phenols