Application of small-angle scattering to study the effects of moisture content on a native soy protein

dc.contributor.authorKealley, CSen_AU
dc.contributor.authorElcombe, MMen_AU
dc.contributor.authorWuhrer, Ren_AU
dc.contributor.authorGilbert, EPen_AU
dc.date.accessioned2008-08-19T04:43:39Zen_AU
dc.date.accessioned2010-04-30T05:05:58Zen_AU
dc.date.available2008-08-19T04:43:39Zen_AU
dc.date.available2010-04-30T05:05:58Zen_AU
dc.date.issued2008-06en_AU
dc.date.statistics2008-06en_AU
dc.description.abstractThe nano-and microstructure of glycinin, a soybean protein, has been investigated as a function of moisture for moisture contents between 4 and 21 wt%. Glycinin exhibits peaks in the small-angle region whose positions show minimal change with X-rays for samples up to 13% moisture. However, the use of neutron scattering, and the associated enhancement in contrast, results in the Bragg peaks being well resolved up to higher moisture contents; the associated shift in peak positions between 4 and 21% moisture are consistent with the expansion of a hexagonal unit cell as a function of moisture content. A Porod slope of similar to-4 indicates that the interface between the 'dry' protein powder and the surrounding medium at a length-scale of at least 3 mm down to similar to 20 nm is smooth and sharp. Scanning electron microscopy indicates that the powders, with low moisture content, have a porous appearance, with the porosity decreasing and microstructure expanding as the moisture content increases. © 2008, Wiley-Blackwell.en_AU
dc.identifier.citationKealley, C. S., Elcombe, M. M., Wuhrer, R., & Gilbert, E. P. (2008). Application of small-angle scattering to study the effects of moisture content on a native soy protein. Journal of Applied Crystallography, 41, 628-633. doi:10.1107/S0021889808012648en_AU
dc.identifier.govdoc1384en_AU
dc.identifier.issn0021-8898en_AU
dc.identifier.journaltitleJournal of Applied Crystallographyen_AU
dc.identifier.pagination628-633en_AU
dc.identifier.urihttp://dx.doi.org/10.1107/S0021889808012648en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1191en_AU
dc.identifier.volume41en_AU
dc.language.isoenen_AU
dc.publisherWiley-Blackwellen_AU
dc.subjectSmall angle scatteringen_AU
dc.subjectCrystal structureen_AU
dc.subjectSoybeansen_AU
dc.subjectProteinsen_AU
dc.subjectMoistureen_AU
dc.subjectMicrostructureen_AU
dc.titleApplication of small-angle scattering to study the effects of moisture content on a native soy proteinen_AU
dc.typeJournal Articleen_AU
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