<P><B>Abstract</B></P><P>Six cerebrosides were isolated from the eggs of the starfish <I>Asterias amurensis</I> using solvent extraction, silica gel column chromatography, and reversed‐phase high‐p...
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https://www.riss.kr/link?id=A107571792
2011
-
SCI,SCIE,SCOPUS
학술저널
572-578(7쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P><B>Abstract</B></P><P>Six cerebrosides were isolated from the eggs of the starfish <I>Asterias amurensis</I> using solvent extraction, silica gel column chromatography, and reversed‐phase high‐p...
<P><B>Abstract</B></P><P>Six cerebrosides were isolated from the eggs of the starfish <I>Asterias amurensis</I> using solvent extraction, silica gel column chromatography, and reversed‐phase high‐performance liquid chromatography. This study demonstrated that the structures of cerebrosides could be completely characterized, based on their sodium‐adducted molecules, using fast atom bombardment (FAB) tandem mass spectrometry. The high‐energy collision‐induced dissociation of the sodium‐adducted molecule, [M + Na]<SUP>+</SUP>, of each cerebroside molecular species generated abundant ions, providing information on the compositions of the 2‐hydroxy fatty acids and long‐chain sphingoid bases, as well as the sugar moiety polar head group. Each homologous ion series along the fatty acid and aliphatic chain of the sphingoid base was useful for locating the double‐bond positions of both chains and the methyl branching position of the long‐chain base. The <I>N</I>‐fatty acyl portions were primarily long‐chain saturated or monoenoic acids (C16 to C24) with an α‐hydroxy group. The sphingoid long‐chain base portions were aliphatic chains (C18 or C22) with two or three degrees of unsaturation and with or without methyl branching. Copyright © 2011 John Wiley & Sons, Ltd.</P>