title: [Polar constituents of the ascidia Botryllus schlosseri].
abstract: Eighteen compounds were identified by GC-MS of their trimethylsilyl derivatives in n-butanolic extract from the biomass of Botryllus schlosseri. Three of them, 5-oxoproline, 5-hydroxyhydantoin, and kinurenic acid, were found in marine invertebrates for the first time. In addition to cellulose, the biomass was also shown to contain complex water-soluble sulfated polysaccharides. These were extracted and fractionated, and sulfate content and monosaccharide composition were determined in the fractions; fucose, xylose, galactose, mannose, glucose, glucosamine, galactosamine, and uronic acids were found. Unlike several other tunicate species, Botryllus schlosseri does not seem to contain any simple galactan sulfate.
authors.affiliation: Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninskii prosp. 47, GSP-1 Moscow, 119991 Russia. usov@ioc.ac.ru
authors.forename: A I
authors.initials: AI
authors.lastname: Usov
authors.forename: K I
authors.initials: KI
authors.lastname: Slanchev
authors.forename: G P
authors.initials: GP
authors.lastname: Smirnova
authors.forename: A P
authors.initials: AP
authors.lastname: Ivanova
authors.forename: K L
authors.initials: KL
authors.lastname: Stefanov
authors.forename: S S
authors.initials: SS
authors.lastname: Popov
authors.forename: S N
authors.initials: SN
authors.lastname: Andreev
mesh_terms: D000818:Animals; D000440:Butanols / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D006827:Hydantoins / Q000032:analysis / Q000737:chemistry; D007736:Kynurenic Acid / Q000032:analysis / Q000737:chemistry; D011134:Polysaccharides / Q000032:analysis* / Q000737:chemistry; D011761:Pyrrolidonecarboxylic Acid / Q000032:analysis / Q000737:chemistry; D014561:Urochordata / Q000737:chemistry*
chemical_list: D000440:Butanols; D006827:Hydantoins; D011134:Polysaccharides; D007736:Kynurenic Acid; D011761:Pyrrolidonecarboxylic Acid