A study of casein hydration by the thermally stimulated depolarisation currents method

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dc.contributor.author Anagnostopoulou-Konsta, A en
dc.contributor.author Pissis, P en
dc.date.accessioned 2014-03-01T01:06:44Z
dc.date.available 2014-03-01T01:06:44Z
dc.date.issued 1987 en
dc.identifier.issn 0022-3727 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/9595
dc.subject.classification Physics, Applied en
dc.subject.other MOLECULES en
dc.subject.other WATER - Dielectric Properties en
dc.subject.other CASEIN HYDRATION en
dc.subject.other BIOCHEMISTRY en
dc.title A study of casein hydration by the thermally stimulated depolarisation currents method en
heal.type journalArticle en
heal.identifier.primary 10.1088/0022-3727/20/9/013 en
heal.identifier.secondary http://dx.doi.org/10.1088/0022-3727/20/9/013 en
heal.identifier.secondary 013 en
heal.language English en
heal.publicationDate 1987 en
heal.abstract The dielectric behaviour of bound water in compressed casein pellets has been studied using the thermally stimulated depolarisation currents method over the temperature range from 77 to 300 K and the hydration range from 1 to 24% w/w. Two distinct relaxation regions are obtained: one in the range of T from 100 to 170 K attributed to the reorientation of loosely bound water molecules, and a second one in the range 190-290 K interpreted mainly in terms of water-assisted relaxation of the protein polar groups. The fact that both relaxations are very markedly influenced by the presence of water for hydration contents, h, higher than 9%, strongly suggests that all water molecules sorbed up to this value are irrotationally bound to the protein macromolecules. Comparison with results obtained by other investigators by a variety of methods, as well as calculation of the primary sorption sites at the molecular level, give further support to the above interpretation. en
heal.publisher IOP PUBLISHING LTD en
heal.journalName Journal of Physics D: Applied Physics en
dc.identifier.doi 10.1088/0022-3727/20/9/013 en
dc.identifier.isi ISI:A1987K065200013 en
dc.identifier.volume 20 en
dc.identifier.issue 9 en
dc.identifier.spage 1168 en
dc.identifier.epage 1174 en

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