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No.40 (1985/10) >

Title :褐藻アツバモク (Sargassum crassifolium J. Agardh) の成分研究
Title alternative :Studies on the constituents of brown alga Sargassum crassifolium J. Agardh.
Authors :国吉, 正之
Authors alternative :Kuniyoshi, Masayuki
Issue Date :Oct-1985
Abstract :We have continuously investigated on the secondary metabolites, especially on the structurally interesting and/or biologically active constituents, from many kinds of sea weeds growing in Okinawan sea. In this paper, we would like to report the isolation and the structural elucidation of some interesting constituents from the title alga. From the ethanolic extract of the brown alga Sargassum crassifolium (Japanese name "Atsubamoku") collected at Sesoko-jima island area, a new tetraterpene which contains two terminal diene system of double bonds in its chemical structure has been isolated as a major component accompanying by (-)-loliolide, (+)-loliolide and palmitic acid. The structural determinations of these compounds were carried out on the basis of chemical and spectral analysis using IR, UV, ^1H-NMR, ^13C-NMR, and Mass spectroscopies.
Type Local :紀要論文
ISSN :0286-9640
Publisher :琉球大学理学部
URI :http://hdl.handle.net/20.500.12000/5444
Citation :琉球大学理学部紀要 = Bulletin of the College of Science. University of the Ryukyus no.40 p.41 -52
Appears in Collections:No.40 (1985/10)

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