Electrical conductivity of viscous liquid foods

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dc.contributor.authorSubbiah B
dc.contributor.authorMorison KR
dc.date.accessioned2020-01-26T23:32:39Z
dc.date.available2020-01-26T23:32:39Z
dc.date.issued2018en
dc.date.updated2019-07-02T10:33:41Z
dc.description.abstractThe electrical conductivities of foods are used for quality assurance, electrical tomography studies and are required for effective simulation of electrical heating processes such as ohmic and microwave heating. Solutions containing milk solids, whey proteins, sugars and sodium carboxymethyl cellulose (NaCMC), with and without electrolytes were prepared and tested. The electrical conductivity was measured using an RCL meter connected to a parallel plate probe. At low concentrations the conductivity increased with concentration, but in some viscous solutions the reduced ion mobility caused a drop in conductivity. The conductivity of sugar solutions could be related to following the modified Walden equation, but that of NaCMC solutions was not influenced by the bulk viscosity. Instead an ion “diffusion viscosity” was defined and calculated from the conductivity. It was found to correspond to the likely viscosity of the solution at a molecular scale.en
dc.identifier.citationSubbiah B, Morison KR (2018). Electrical conductivity of viscous liquid foods. Journal of Food Engineering. 237. 177-182.en
dc.identifier.doihttps://doi.org/10.1016/j.jfoodeng.2018.05.037
dc.identifier.issn0260-8774
dc.identifier.issn1873-5770
dc.identifier.urihttp://hdl.handle.net/10092/17902
dc.languageEnglish
dc.language.isoen
dc.publisherElsevier BVen
dc.rightsCreative Commons Attribution Non-Commercial No Derivatives Licenseen
dc.subjectMilken
dc.subjectWhey proteinen
dc.subjectSucroseen
dc.subjectGlucoseen
dc.subjectCarboxymethyl celluloseen
dc.subjectIon mobilityen
dc.subject.anzsrcField of Research::09 - Engineering::0904 - Chemical Engineeringen
dc.subject.anzsrcField of Research::09 - Engineering::0908 - Food Sciencesen
dc.titleElectrical conductivity of viscous liquid foodsen
dc.typeJournal Articleen
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