A novel exopolysaccharide from cold-adapted yeast Rhodotorula glutinis, along with structural, rheological, antioxidant, and antibiofilm properties

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dc.authoridOztekin, Sebahat/0000-0003-0859-1776
dc.authoridKarbancioglu Guler, Funda/0000-0001-6576-0084
dc.contributor.authorOztekin, Sebahat
dc.contributor.authorDikmetas, Dilara Nur
dc.contributor.authorKarbancioglu-Guler, Funda
dc.date.accessioned2024-10-04T18:48:08Z
dc.date.available2024-10-04T18:48:08Z
dc.date.issued2023
dc.departmentBayburt Üniversitesien_US
dc.description.abstractIn the present study, a novel exopolysaccharide EPS-BMD26 produced by cold-adapted yeast Rhodotorula glutinis was structurally examined, along with its rheological, antioxidant, and antibiofilm properties. High-performance liquid chromatography (HPLC) analysis revealed glucose and galactose as two monosaccharide constituents. The functional groups within the EPS-BMD26 structure were detected by Fourier transform infrared (FT-IR) spectroscopy. The H-1 and C-13 nuclear magnetic resonance (NMR) spectra of EPS-BMD26 also confirmed its beta-D-glucan type with galactose residues with an average molecular weight of 118 kDa. Differential scanning calorimetry (DSC) analysis revealed that EPS-BMD26 had a high level of thermal stability, up to 326.16 degrees C. Scanning electron microscopy (SEM) analysis demonstrated that EPS-BMD26 had a porous microstructure with fissures. X-ray diffraction (XRD) analysis revealed its semi-crystalline nature. EPS-BMD26 showed moderate and concentration-dependent antioxidant potential recruiting different methods, including center dot OH, DPPH center dot, CUPRAC, and ABTS radical scavenging activities. Water-soluble EPS-BMD26 exhibited high water holding capacity of 190 +/- 0.22% with a water solubility index of 60.6 +/- 8.3%. At 1.25 mg mL(-1), EPS-BMD26 inhibited biofilm formation of Staphylococcus aureus ATCC 25923 by 79.5%. Rheological characterization revealed that the aqueous solution of EPS-BMD26 had shear thinning and pseudoplastic behavior. Given these properties, EPS-BMD26 may be a promising bio-hydrocolloid, antibiofilm agent, and food additive for industrial applications.en_US
dc.description.sponsorshipBilimsel Arascedil;timath;rma Projeleri Birimi, Idot;stanbul Teknik niversitesien_US
dc.description.sponsorshipNo Statement Availableen_US
dc.identifier.doi10.1007/s13399-023-05208-3
dc.identifier.issn2190-6815
dc.identifier.issn2190-6823
dc.identifier.scopus2-s2.0-85179975197en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.urihttps://doi.org/10.1007/s13399-023-05208-3
dc.identifier.urihttp://hdl.handle.net/20.500.12403/2919
dc.identifier.wosWOS:001124997500002en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Heidelbergen_US
dc.relation.ispartofBiomass Conversion and Biorefineryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectRhodotorula glutinisen_US
dc.subjectExopolysaccharideen_US
dc.subjectStructural analysisen_US
dc.subjectRheologyen_US
dc.subjectAntioxidanten_US
dc.subjectAntibiofilmen_US
dc.titleA novel exopolysaccharide from cold-adapted yeast Rhodotorula glutinis, along with structural, rheological, antioxidant, and antibiofilm propertiesen_US
dc.typeArticleen_US

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