title: [Isolation and characteristic of super long-chain unsaturated aldehydes from the freshwater sponge Lubomirskia baicalensis].
abstract: Several unusual overlong-chain unsaturated aldehydes (22:1, 22:2, 23:1, 24:1, 24:2, and 25:2) were found in total lipids of the endemic sponge Lubomirskia baicalensis from Baikal Lake. Tetracos-17-enal was identified as the major aldehyde of the mixture using GC-MS and 1H and 13C NMR spectroscopy. A procedure for the isolation of total overlong-chain aldehydes was suggested. We think that the overlong-chain aldehydes defend the sponge from fouling and predators. The English version of the paper: Russian Journal of Bioorganic Chemistry, 2005, vol. 31, no. 6; see also http://www.maik.ru.
authors.forename: A B
authors.initials: AB
authors.lastname: Imbs
authors.forename: A L
authors.initials: AL
authors.lastname: Vereshchagin
mesh_terms: D000447:Aldehydes / Q000737:chemistry* / Q000302:isolation & purification; D000818:Animals; D005618:Fresh Water; D008055:Lipids / Q000737:chemistry*; D011161:Porifera / Q000737:chemistry*; D012800:Siberia
chemical_list: D000447:Aldehydes; D008055:Lipids