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dc.contributor.authorMexis, S. F.en
dc.contributor.authorKontominas, M. G.en
dc.date.accessioned2015-11-24T16:56:49Z-
dc.date.available2015-11-24T16:56:49Z-
dc.identifier.issn0969-806X-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/10492-
dc.rightsDefault Licence-
dc.subjecthazelnuten
dc.subjectirradiationen
dc.subjectphysicochemical qualityen
dc.subjectsensory qualityen
dc.subjectchemical-compositionen
dc.subjectoxidative stabilityen
dc.subjectfatty-acidsen
dc.subjectwalnutsen
dc.subjectoilsen
dc.subjectnuten
dc.subjectpeanutsen
dc.subjectalmondsen
dc.subjectseedsen
dc.titleEffect of gamma-irradiation on the physicochemical and sensory properties of hazelnuts (Corylus avellana L.)en
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDOI 10.1016/j.radphyschem.2009.03.008-
heal.identifier.secondary<Go to ISI>://000266842000007-
heal.identifier.secondaryhttp://ac.els-cdn.com/S0969806X09000553/1-s2.0-S0969806X09000553-main.pdf?_tid=ee5c0990c078ce2b2ef6ca0c50f1e54d&acdnat=1333031286_ed75992de9478d196cd6655172d59b52-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείαςel
heal.publicationDate2009-
heal.abstractThe present study evaluated the quality of hazelnuts as a function of irradiation dose to determine dose levels causing minimal undesirable changes to hazelnuts. Physicochemical (color, peroxide value (PV), hexanal content, fatty acid composition and volatile compounds) and sensory (color, texture, odor and taste) properties were determined. Results showed a twenty fold increase in peroxide value and twenty-eight fold increase in hexanal content after irradiation at a dose of 7 kGy. An increase was also observed in saturated fatty acids (10%-23%) with a parallel decrease in unsaturated fatty acids (90-77%). Volatile compounds such as ketones, alkanes, alcohols, aldehydes, furans, aromatic hydrocarbons, bicyclic monoterpenes and acids were produced mostly comprising secondary oxidation products of hazelnut lipids after irradiation. Color parameter b* increased (p<0.05) after irradiation at a dose of >= 5 kGy, while color parameters L* and a* remained unchanged by irradiation. Sensory evaluation showed that texture and color were not affected by irradiation. Taste, the most sensitive sensory attribute showed that hazelnuts retain acceptable sensory quality when irradiated up to a dose of 1.5 kGy. (C) 2009 Elsevier Ltd. All rights reserved.en
heal.journalNameRadiation Physics and Chemistryen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά). ΧΗΜ

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