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Mar. Drugs 2018, 16(5), 164; https://doi.org/10.3390/md16050164

Structure of the Exopolysaccharide Secreted by a Marine Strain Vibrio alginolyticus

1
Université Grenoble Alpes, CERMAV, CNRS, Centre de Recherches sur les Macromolécules Végétales (CERMAV), BP 53, 38041 Grenoble CEDEX 9, France
2
Polymaris Biotechnology, Aéropôle Centre, 29600 Morlaix, France
3
Codif International, 35400 Roz-sur-Couesnon, France
*
Author to whom correspondence should be addressed.
Received: 20 November 2017 / Revised: 9 May 2018 / Accepted: 10 May 2018 / Published: 15 May 2018
(This article belongs to the Special Issue Marine Oligosaccharides and Polysaccharides)
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Abstract

Vibrio alginolyticus (CNCM I-4151) secretes an exopolysaccharide whose carbohydrate backbone is decorated with amino acids, likely conferring its properties that are appreciated in cosmetics. Here, the secreted polysaccharide of another strain of V. alginolyticus (CNCM I-5034) was characterized by chromatography and one- and two-dimensional NMR spectroscopy experiments. The structure was resolved and shows that the carbohydrate backbone is made of four residues: D-galactose (Gal), D-galacturonic acid (GalA) D-N-acetylglucosamine (GlcNAc) and D-glucuronic acid (GlcA), forming a tetrasaccharide repetition unit [→4)-β-d-GlcA-(1→3)-α-d-Gal-(1→3)-α-d-GalA-(1→3)-β-GlcNAc(1→]. GlcA is derivatized with a lactate group giving ‘nosturonic acid’, and GalA is decorated with the amino acid alanine. View Full-Text
Keywords: Vibrio alginolyticus; nosturonic acid; cosmetic Vibrio alginolyticus; nosturonic acid; cosmetic
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Drouillard, S.; Jeacomine, I.; Buon, L.; Boisset, C.; Courtois, A.; Thollas, B.; Morvan, P.-Y.; Vallée, R.; Helbert, W. Structure of the Exopolysaccharide Secreted by a Marine Strain Vibrio alginolyticus. Mar. Drugs 2018, 16, 164.

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