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Main sterols from the ophiuroids Ophiocoma echinata, Ophiocoma wendtii, Ophioplocus januarii and Ophionotus victoriae |
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| Authors: | Carmenza Duque Jorge Rojas Sven Zea Alejandro J Roccatagliata Marta S Maier Alicia M Seldes |
| Institution: | a Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, AA 14490, Bogotá, Colombia b Departamento de Biología, Facultad de Ciencias, Universidad Nacional de Columbia, AA 14490, Bogotá, Colombia c Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, (1428), Buenos Aires, Argentina |
| Abstract: | Sterol compositions of the cold water ophiuroids Ophioplocus januarii and Ophionotus victoriae and of the tropical ophiuroids Ophiocoma echinata and Ophiocoma wendtii are reported. The four sterol mixtures contain Δ5 mono- and di-unsaturated common 3β-hydroxy-sterols. Ophioplocus januarii and O. victoriae contain 24-methylcholesta-5,24(28)-dien-3β-ol and 24ζ-ethylcholesta-5,24(28)-dien-3β-ol in higher abundance than in O. echinata. These sterols were not found in O. wendtii. An interesting finding is the presence of Δ5,24(28)-24-n-propylidenecholesterol in 7.6% in Ophionotus victoriae. |
| Keywords: | Ophiocoma echinata Ophiocoma wendtii Ophioplocus januarii Ophionotus victoriae Ophiuroidea Echinodermata marine sterols sterol composition |
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