title: Mauran, an exopolysaccharide produced by the halophilic bacterium Halomonas maura, with a novel composition and interesting properties for biotechnology.
abstract: Mauran is an anionic, sulfated heteropolysaccharide with a high uronic-acid content, synthesized by strain S-30 of the halophilic bacterium Halomonas maura. Under optimum environmental and nutritional conditions, it is capable of producing up to 3.8 g of mauran per liter of medium. Aqueous solutions of mauran are highly viscous and display pseudoplastic, viscoelastic and thixotropic behavior. Its viscosity is stable over a wide pH range (3-11), after freezing-thawing processes, and in the presence of sucrose, salts, surfactants and alpha-hydroxyl acids. It has a high capacity for binding lead and other cations. Its molecular mass when collected from an MY medium supplemented with 2.5% w/v salt during the stationary growth phase is 4.7x10(6) Da.
authors.affiliation: Exopolysaccharide Research Group, Department of Microbiology, Faculty of Pharmacy, University of Granada, 18071, Granada, Spain.
authors.forename: Soledad
authors.initials: S
authors.lastname: Arias
authors.forename: Ana
authors.initials: A
authors.lastname: del Moral
authors.forename: Maria Rita
authors.initials: MR
authors.lastname: Ferrer
authors.forename: Richard
authors.initials: R
authors.lastname: Tallon
authors.forename: Emilia
authors.initials: E
authors.lastname: Quesada
authors.forename: Victoria
authors.initials: V
authors.lastname: Béjar
mesh_terms: D001709:Biotechnology; D003470:Culture Media; D020632:Halomonas / Q000166:cytology / Q000235:genetics / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D007474:Ion Exchange; D013058:Mass Spectrometry; D008670:Metals / Q000737:chemistry; D008854:Microscopy, Electron; D008970:Molecular Weight; D011135:Polysaccharides, Bacterial / Q000096:biosynthesis* / Q000737:chemistry*; D012988:Soil Microbiology; D014783:Viscosity
chemical_list: D003470:Culture Media; D008670:Metals; D011135:Polysaccharides, Bacterial; C587252:mauran