dc.creatorde la Hoz, L
dc.creatorNetto, FM
dc.date2008
dc.dateDEC
dc.date2014-07-31T14:27:14Z
dc.date2015-11-26T17:06:57Z
dc.date2014-07-31T14:27:14Z
dc.date2015-11-26T17:06:57Z
dc.date.accessioned2018-03-28T23:55:26Z
dc.date.available2018-03-28T23:55:26Z
dc.identifierInternational Dairy Journal. Elsevier Sci Ltd, v. 18, n. 12, n. 1126, n. 1132, 2008.
dc.identifier0958-6946
dc.identifierWOS:000259836400007
dc.identifier10.1016/j.idairyj.2008.06.005
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/75476
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/75476
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1279995
dc.descriptionIt was demonstrated in a previous study that gamma irradiation of solutions of native beta-lactoglobulin (beta-LG) results in ordered oligomers and aggregates, whereas the protein irradiated in the solid state is not affected. The structural features associated with oligomerization and aggregation were investigated here, using fluorescence and circular dichroism (CD). Bovine beta-LG, in solid state or in solution, was irradiated at a dose level of 10, 25 or 50 kGy using a Cobalt-60 radiation source. The effect of doses up to 10 kGy on the tertiary and secondary structure of beta-LG irradiated in solid state was not important, and slight changes were observed at 50 kGy. beta-LG irradiated in solution showed alterations in fluorescence spectra and decreasing dichroism signal in near-UV CD spectra, suggesting changes in the tertiary structure. However, quantification of the secondary Structure showed little overall change in content, despite changes in the spectra noted. The greatest structural changes were observed when protein was irradiated at low concentration (3 mg mL(-1)) and at high dose (50 kGy), and were similar to those observed in thermal-treated beta-LG at mild conditions as reported by other authors. (c) 2008 Elsevier Ltd. All rights reserved.
dc.description18
dc.description12
dc.description1126
dc.description1132
dc.languageen
dc.publisherElsevier Sci Ltd
dc.publisherOxford
dc.publisherInglaterra
dc.relationInternational Dairy Journal
dc.relationInt. Dairy J.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectCircular-dichroism Spectroscopy
dc.subjectHeat-induced Aggregation
dc.subjectSecondary Structure
dc.subjectMolten Globule
dc.subjectProteins
dc.subjectFluorescence
dc.subjectConformation
dc.subjectSpectra
dc.subjectAcid
dc.subjectPh
dc.titleStructural modifications of beta-lactoglobulin subjected to gamma radiation
dc.typeArtículos de revistas


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