title: Labdane-type diterpene dialdehyde, pungent principle of myoga, Zingiber mioga Roscoe.
abstract: The pungent principle of myoga (Zingiber mioga Roscoe) was identified as (E)-8beta(17)-epoxylabd-12-ene-15,16-dial (miogadial) on the basis of its physical and spectroscopic properties (MS, NMR, IR, and UV). Galanal A and B, isolated as well as miogadial, had no hot taste. Reduced miogadial also was tasteless. The pungency of miogadial depended on the presence of alphabeta-unsaturated-1,4-dialdehyde group.
authors.affiliation: Department of Health and Nutrition, Takasaki University of Health and Welfare, Takasaki 370-0033, Japan.
authors.forename: Masako
authors.initials: M
authors.lastname: Abe
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Ozawa
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Uda
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Yamada
authors.forename: Yasujiro
authors.initials: Y
authors.lastname: Morimitsu
authors.forename: Yoshimasa
authors.initials: Y
authors.lastname: Nakamura
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Osawa
mesh_terms: D004224:Diterpenes / Q000737:chemistry*; D006801:Humans; D015394:Molecular Structure; D013649:Taste; D030521:Zingiberaceae / Q000737:chemistry*
chemical_list: D004224:Diterpenes; C476263:miogadial; C476264:galanal A; C476265:galanal B