University of Limerick Institutional Repository

Dynamic mechanical analysis as a complementary technique for stickiness determination in model whey protein powders

DSpace Repository

Show simple item record

dc.contributor.author O'Donoghue, Laura T.
dc.contributor.author Haque, Kamrul
dc.contributor.author Hogan, Sean A.
dc.contributor.author Laffir, Fathima R.
dc.contributor.author O'Mahony, James A.
dc.contributor.author Murphy, Eoin G.
dc.date.accessioned 2020-09-23T08:58:37Z
dc.date.available 2020-09-23T08:58:37Z
dc.date.issued 2020
dc.identifier.uri http://hdl.handle.net/10344/9255
dc.description peer-reviewed en_US
dc.description.abstract The α-relaxation temperatures (Tα), derived from the storage and loss moduli using dynamic mechanical analysis (DMA), were compared to methods for stickiness and glass transition determination for a selection of model whey protein concentrate(WPC) powders with varying protein contents. Glass transition temperatures (Tg) were determined using differential scanning calorimetry (DSC), and stickiness behavior was characterized using a fluidization technique. For the lower protein powders (WPC 20 and 35), the mechanical Tα determined from the storage modulus of the DMA (Tα onset) were in good agreement with the fluidization results, whereas for higher protein powders (WPC 50 and 65), the fluidization results compared better to the loss modulus results of the DMA (Tα peak). This study demonstrates that DMA has the potential to be a useful technique to complement stickiness characterization of dairy powders by providing an increased understanding of the mechanisms of stickiness. en_US
dc.language.iso eng en_US
dc.publisher MDPI en_US
dc.relation.ispartofseries Foods;9, 1295
dc.subject dairy powders en_US
dc.subject stickiness en_US
dc.subject thermal relaxation en_US
dc.subject spray drying en_US
dc.title Dynamic mechanical analysis as a complementary technique for stickiness determination in model whey protein powders en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.3390/foods9091295
dc.contributor.sponsor EI en_US
dc.relation.projectid TC/2014/0016 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search ULIR


Browse

My Account

Statistics