Molecular interactions of a model bile salt and porcine bile with (1,3:1,4)-β-glucans and arabinoxylans probed by 13C NMR and SAXS

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dc.contributor.authorGunness, Pen_AU
dc.contributor.authorFlanagan, BMen_AU
dc.contributor.authorMata, JPen_AU
dc.contributor.authorGilbert, EPen_AU
dc.contributor.authorGidley, MJen_AU
dc.date.accessioned2023-11-16T21:44:37Zen_AU
dc.date.available2023-11-16T21:44:37Zen_AU
dc.date.issued2016-04-15en_AU
dc.date.statistics2023-11-13en_AU
dc.description.abstractTwo main classes of interaction between soluble dietary fibres (SDFs), such as (1,3:1,4)-β-d-glucan (βG) and arabinoxylan (AX) and bile salt (BS) or diluted porcine bile, were identified by 13C NMR and small angle X-ray scattering (SAXS). Small chemical shift differences of BS NMR resonances were consistent with effective local concentration or dilution of BS micelles mostly by βG, suggesting dynamic interactions; whilst the reduced line widths/intensities observed were mostly caused by wheat AX and the highest molecular size and concentrations of βG. SAXS showed evidence of changes in βG but not AX in the presence of BS micelles, at >13 nm length scale consistent with molecular level interactions. Thus intermolecular interactions between SDF and BS depend on both SDF source and its molecular weight and may occur alone or in combination. © 2015 Elsevier Ltden_AU
dc.description.sponsorshipFunding was made available from the Australian Flagship Collaborative Research Program, provided to the High Fibre Grains Cluster via the Food Futures Flagship. The authors would like to thank Dr Gregory Pierens for assistance with the 900-MHz NMR spectrometer.en_AU
dc.identifier.citationGunness, P., Flanagan, B. M., Mata, J. P., Gilbert, E. P., & Gidley, M. J. (2016). Molecular interactions of a model bile salt and porcine bile with (1,3:1,4)-β-glucans and arabinoxylans probed by 13C NMR and SAXS. Food chemistry, 197, Part A, 676-685. doi:10.1016/j.foodchem.2015.10.104en_AU
dc.identifier.issn0308-8146en_AU
dc.identifier.issuePart Aen_AU
dc.identifier.journaltitleFood chemistryen_AU
dc.identifier.pagination676-685en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15196en_AU
dc.identifier.volume197en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.relation.urihttps://doi.org/10.1016/j.foodchem.2015.10.104en_AU
dc.subjectBileen_AU
dc.subjectSaltsen_AU
dc.subjectCarbon 13en_AU
dc.subjectSmall angle scatteringen_AU
dc.subjectNuclear magnetic resonanceen_AU
dc.subjectSolubilityen_AU
dc.titleMolecular interactions of a model bile salt and porcine bile with (1,3:1,4)-β-glucans and arabinoxylans probed by 13C NMR and SAXSen_AU
dc.typeJournal Articleen_AU
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