Labdane-type diterpene dialdehyde, pungent principle of myoga, Zingiber mioga Roscoe.
نویسندگان
چکیده
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.
منابع مشابه
A novel labdane-type trialdehyde from myoga (Zingiber mioga Roscoe) that potently inhibits human platelet aggregation and human 5-lipoxygenase.
We screened myoga extracts for inhibitors of human platelet aggregation and human 5-lipoxygenase. We identified a novel labdane type of diterpene, together with three known diterpenes (miogadial and galanals A and B) from the flower buds of myoga. Spectroscopic data indicated the structure of the new compound to be 12(E)-labdene-15,16,(8beta)17-trial (miogatrial). Miogatrial and miogadial were ...
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ورودعنوان ژورنال:
- Bioscience, biotechnology, and biochemistry
دوره 66 12 شماره
صفحات -
تاریخ انتشار 2002