Determination of the irradiation effects on senna (Casia acutifolia) leaves by ESR technique and microbiological analysis

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dc.authorid0000-0002-5954-3689en_US
dc.contributor.authorSezer, M. Özgür
dc.contributor.authorEce, Emel
dc.contributor.authorUslu, Ali
dc.contributor.authorÖzmen, Ayhan
dc.contributor.authorSayın, Ülkü
dc.date.accessioned2019-12-06T21:15:00Z
dc.date.available2019-12-06T21:15:00Z
dc.date.issued2019
dc.departmentKMÜ, Kamil Özdağ Fen Fakültesi, Fizik Bölümüen_US
dc.descriptionWOS:000491301000036en_US
dc.description.abstractIn this study, the effects of irradiation on the Senna (Casia acutifolia) leaves exposed to gamma rays at various doses were investigated by means of Electron Spin Resonance (ESR) technique. Before irradiation a broad and asymmetric signal having g value of 2.0038 which was attributed to quinone radicals were observed. In the irradiated samples, a symmetric singlet signal with the g value of 2.0050 was detected and it was determined as radiation sensitive. According to isochronal annealing and fading studies it was shown that this signal was formed of short and long-lived two radicals. Because one of the components of the singlet signal in irradiated samples was quite stable at room temperature, so it was suggested to be used in irradiated food detection studies. It was revealed out by kinetic studies that the thermal responses of the singlet signals in natural and irradiated samples are different, thus it was emphasized that doing kinetic measurements for irradiated food detection was quite important, especially when the satellite signals could not be observed. Furthermore, by microbiological analysis, in order to investigate the effects of radiation on microorganisms in samples, microbial loads of irradiated samples at different doses were examined, and the lowest irradiation doses to inactive the microorganisms found in the natural sample were determined.en_US
dc.description.sponsorshipScientific Research Projects Coordination Unit (BAP) at Selcuk University in Turkey [15401052]en_US
dc.description.sponsorshipThis work was financially supported by a project with the grant number [15401052] of Scientific Research Projects Coordination Unit (BAP) at Selcuk University in Turkey.en_US
dc.identifier.citationSezer, M. O., Ece, E., Uslu, A., Özmen, A., Sayın, U. (2019). Determination of the irradiation effects on senna (Casia acutifolia) leaves by ESR technique and microbiological analysis. Radiation Physics and Chemistry, 165.
dc.identifier.doi10.1016/j.radphyschem.2019.108434
dc.identifier.issn0969-806X
dc.identifier.scopus2-s2.0-85073702273
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://dx.doi.org/10.1016/j.radphyschem.2019.108434
dc.identifier.urihttps://hdl.handle.net/11492/2351
dc.identifier.volume165en_US
dc.identifier.wosWOS:000491301000036
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Sceince
dc.indekslendigikaynakScopus
dc.institutionauthorEce, Emel
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.journalRadiation Physics and Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectElectron Spin Resonance (ESR)en_US
dc.subjectSennaen_US
dc.subjectGamma Irradiationen_US
dc.subjectIrradiated Food Detectionen_US
dc.subjectMicrobiological Analysisen_US
dc.titleDetermination of the irradiation effects on senna (Casia acutifolia) leaves by ESR technique and microbiological analysisen_US
dc.typeArticle

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