Effect of gamma radiation cobalt-60 on caffeine

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dc.contributor.authorMAIA, TIAGO C. dos S.pt_BR
dc.contributor.authorLUGAO, ADEMAR B.pt_BR
dc.contributor.authorAZOUBEL, ROBERTApt_BR
dc.contributor.authorRAPOSO, MARCOS T.pt_BR
dc.contributor.authorOLIVEIRA, MARIA J.A. dept_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2020-12-02T14:58:14Z
dc.date.available2020-12-02T14:58:14Z
dc.date.issued2019pt_BR
dc.description.abstractObjective: The objective of the study was to evaluate the effects of the incidence of gamma radiation of Cobalt-60 on caffeine. Material and Methods: The samples were studied in aqueous solution and powdered form after irradiation at doses: 2, 4, 8, 16 and 32 kGy by ionizing radiation source of 60Co. After wards, they were analyzed by differential scanning calorimetry (DSC), thermogravimetry (TG), and high performance liquid chromatography (HPLC). Results and Discussion: For the DSC technique no changes were observed in the curves after irradiation, which could witness changes in physicochemical properties after irradiation. The TG corroborated with the expected mass loss of caffeine, independent of the action of ionizing radiation. Furthermore, the results obtained by the chromatographic analysis did not show a percentage of caffeine degradation in the dose of the applied radiation when compared to the nonirradiated caffeine. Conclusion: In view of the results obtained, it was possible to observe the stability of caffeine on the influence of gamma radiation on the Cobalt-60 source.pt_BR
dc.format.extent27749-27751pt_BR
dc.identifier.citationMAIA, TIAGO C. dos S.; LUGAO, ADEMAR B.; AZOUBEL, ROBERTA; RAPOSO, MARCOS T.; OLIVEIRA, MARIA J.A. de. Effect of gamma radiation cobalt-60 on caffeine. <b>International Journal of Development Research</b>, v. 9, n. 5, p. 27749-27751, 2019. Disponível em: http://200.136.52.105/handle/123456789/31583.
dc.identifier.fasciculo5pt_BR
dc.identifier.issn2230-9926pt_BR
dc.identifier.orcid0000-0002-1737-3191pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-1737-3191
dc.identifier.percentilfiSem Percentilpt_BR
dc.identifier.percentilfiCiteScoreSem Percentil CiteScore
dc.identifier.urihttp://200.136.52.105/handle/123456789/31583
dc.identifier.vol9pt_BR
dc.relation.ispartofInternational Journal of Development Researchpt_BR
dc.rightsopenAccesspt_BR
dc.subjectgamma radiation
dc.subjectcobalt 60
dc.subjectionizing radiations
dc.subjectcaffeine
dc.subjectchromatography
dc.subjectthermal gravimetric analysis
dc.subjectbiological radiation effects
dc.titleEffect of gamma radiation cobalt-60 on caffeinept_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorMARIA JOSE ALVES DE OLIVEIRA
ipen.autorADEMAR BENEVOLO LUGAO
ipen.autorTIAGO CESAR DOS SANTOS
ipen.codigoautor3310
ipen.codigoautor339
ipen.codigoautor14387
ipen.contributor.ipenauthorMARIA JOSE ALVES DE OLIVEIRA
ipen.contributor.ipenauthorADEMAR BENEVOLO LUGAO
ipen.contributor.ipenauthorTIAGO CESAR DOS SANTOS
ipen.date.recebimento20-12
ipen.identifier.fiSem F.I.pt_BR
ipen.identifier.fiCiteScoreSem CiteScore
ipen.identifier.ipendoc27355pt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublicationdb19966e-6f74-43fc-84b1-c24c1d826e0c
relation.isAuthorOfPublication99ac24c5-2ae1-465a-a6f2-40b4d9af6af7
relation.isAuthorOfPublicationa37f4be2-2cb5-4823-9f08-87030cf47fa8
relation.isAuthorOfPublication.latestForDiscoverya37f4be2-2cb5-4823-9f08-87030cf47fa8
sigepi.autor.atividadeOLIVEIRA, MARIA J.A. de:3310:750:Npt_BR
sigepi.autor.atividadeLUGAO, ADEMAR B.:339:740:Npt_BR
sigepi.autor.atividadeMAIA, TIAGO C. dos S.:14387:740:Spt_BR
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