title: Comparison of volatile compounds with characteristic odor in flowers and leaves of nojigiku (Chrysanthemum japonense).
abstract: The aim of the present study was to investigate the essential oils isolated from flower and leaf in order to get insight into similarities and differences as to their aroma-active composition. The essential oil obtained from the two parts were analyzed by gas chromatography-mass spectrometry and gas chromatography olfactometry (GC-O). Flower and leaf oils, 38 and 36 constituents, representing 96.4 and 91.0% of the total oil composition, respectively, were identified. The main compounds in flower oil were camphor (47.64%), bornyl acetate (11.87%), and nojigiku alcohol (6.29%), whereas those in leaf oil were camphor (39.14%), nojigiku alcohol (10.76%) and γ-muurolene (7.02%). 13 Aroma-active compounds were identified by GC-O analysis in flower oil and 12 in leaf oil. The main aroma-active compounds in flower oil were camphor (camphor, FD (flavor dilution) = 7, OAV (odor active value) = 136913), bornyl acetate (camphor, FD = 6, OAV = 113711), and β-caryophyllene (spicy, FD = 5, OAV = 116480). In leaf oil, the main aroma-active compounds were camphor (camphor, FD = 7, OAV = 106784), nojigiku alcohol (camphor, FD = 5, OAV = not determined), and β-caryophyllene (spicy, FD = 6, OAV = 526267).
authors.affiliation: Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University, Osaka, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Usami
authors.forename: Toshirou
authors.initials: T
authors.lastname: Ono
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Marumoto
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Miyazawa
mesh_terms: D000438:Alcohols / Q000032:analysis / Q000302:isolation & purification; D001892:Camphanes / Q000032:analysis / Q000302:isolation & purification; D002164:Camphor / Q000032:analysis* / Q000302:isolation & purification; D002849:Chromatography, Gas; D031202:Chrysanthemum / Q000737:chemistry*; D035264:Flowers / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D009812:Odorants / Q000032:analysis*; D009822:Oils, Volatile / Q000302:isolation & purification*; D064367:Olfactometry; D018515:Plant Leaves / Q000737:chemistry; D010938:Plant Oils / Q000302:isolation & purification*; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes / Q000032:analysis / Q000302:isolation & purification
chemical_list: D000438:Alcohols; D001892:Camphanes; D009822:Oils, Volatile; D010938:Plant Oils; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; C071528:bornyl acetate; D002164:Camphor; C024714:caryophyllene