Comparative heterogeneity, molecular weights and viscosities of xanthans of different pyruvate and acetate content

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dc.authorid0000-0002-2150-2726en_US
dc.contributor.authorErten, T., Adams, G.G., Foster, T.J., Harding, S.E.
dc.date.accessioned2020-12-04T09:34:34Z
dc.date.available2020-12-04T09:34:34Z
dc.date.issued2014en_US
dc.departmentFakülteler, Sağlık Bilimleri Fakültesi, Beslenme ve Diyetetik Bölümüen_US
dc.description.abstractIntroduction: The bacterial exopolysaccharide xanthan is a well-known hydrocolloid, with a high viscosity deriving from its large molecular weight and volume. Materials and methods: Four different xanthans deriving from Xanthomanas campestris e two with similar pyruvate and acetate contents and two with different contents e were characterized in dilute aqueous buffered solution (pH 7.0, ionic strength 0.3 M) using sedimentation velocity and sedimentation equilibrium in the analytical ultracentrifuge, supplemented by dynamic light scattering. Results: This facilitated a comparison with regards heterogeneity (sedimentation coefficient distribution) and molecular weight, despite their large size and low critical overlap concentration. The xanthans were also compared with regard to reduced specific and intrinsic viscosity behaviour. The xanthans generally show strong similarity in properties with the exception of the lowest pyruvate xanthan, a finding which should be useful for future applications of these materials.en_US
dc.description.sponsorshipTurkish Ministry of National Educationen_US
dc.identifier.doi10.1016/j.foodhyd.2014.04.012
dc.identifier.endpage341en_US
dc.identifier.issue42en_US
dc.identifier.startpage335en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12403/2282
dc.institutionauthorErten, Tayyibe
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofFood Hydrocolloidsen_US
dc.relation.publicationcategoryMakale - Uluslararası - Editör Denetimli Dergien_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectXanthan, Pyruvate, Molecular weight, Ultracentrifugationen_US
dc.titleComparative heterogeneity, molecular weights and viscosities of xanthans of different pyruvate and acetate contenten_US
dc.typeArticleen_US

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