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Polar Constituents of the Tunicate Botryllus schlosseri

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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.

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Authors and Affiliations

  1. Russian Academy of Sciences, Zelinsky Institute of Organic Chemistry, Leninskii prosp. 47, GSP-1 Moscow, 119991, Russia

    A. I. Usov & G. P. Smirnova

  2. Bulgarian Academy of Sciences, Institute of Organic Chemistry with Centre of Phytochemistry, Sofia, 1113, Bulgaria

    K. I. Slanchev, A. P. Ivanova, K. L. Stefanov & S. S. Popov

  3. Bulgarian Academy of Sciences, Museum of Natural History, Sofia, 1000, Bulgaria

    St. N. Andreev

Authors
  1. A. I. Usov
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  2. K. I. Slanchev
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  3. G. P. Smirnova
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  4. A. P. Ivanova
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  5. K. L. Stefanov
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  6. S. S. Popov
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  7. St. N. Andreev
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Correspondence to A. I. Usov.

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Usov, A.I., Slanchev, K.I., Smirnova, G.P. et al. Polar Constituents of the Tunicate Botryllus schlosseri. Russian Journal of Bioorganic Chemistry 28, 147–151 (2002). https://doi.org/10.1023/A:1015073525159

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  • DOI: https://doi.org/10.1023/A:1015073525159

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