Sterols from bivalves <Emphasis Type="Italic">Calyptogena soyoae</Emphasis> and <Emphasis Type="Italic">Bathymodiolus septemdierum</Emphasis> living in deep sea |
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Authors: | Shion Kawai Yuuki Takada Shinji Tsuchida Ryusuke Kado Junji Kimura |
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Institution: | (1) Department of Chemistry and Biological Science, College of Science and Engineering, Aoyama Gakuin University, 229-8558 Sagamihara, Kanagawa, Japan;(2) Japan Agency for Marine-Earth Science and Technology, 237-0061 Yokosuka, Kanagawa, Japan;(3) School of Fisheries Sciences, Kitasato University, Sanriku, 022-0101 Ofunato, Iwate, Japan |
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Abstract: | From the two species of bivalves, Calyptogena soyoae around a cold seep and Bathymodiolus septemdierum near hydrothermal vents in the sea, sterols were isolated using high-pressure liquid chromatography analysis of the lipid
fraction guided by characteristic 1H NMR signals of the sterol skeleton. The minor sterol composition of C. soyoae included 24-methylenecycloartanal, cycloeucalenol, and obutusifoliol, which are known phytosterols. From B. Septemdierum, lathosterol and cholesterol as main sterols together with more diverse sterols were obtained. The difference between these
species and their sterol contents is most likely because of feeding modes and metabolism of nutrients from their habitat. |
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Keywords: | Bathymodiolus septemdierum Calyptogena soyoae cold seep deep sea hydrothermal vent sterol |
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