A chemical study of b-carotene oxidation by ozone in an organic model system and the identification of the resulting products

Detalhes bibliográficos
Autor(a) principal: Benevides, Clícia Maria de Jesus
Data de Publicação: 2011
Outros Autores: Veloso, Márcia Cristina da Cunha, Pereira, Pedro Afonso de Paula, Andrade, Jailson Bittencourt de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/5339
Resumo: Acesso restrito: Texto completo. p. 927-934.
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spelling Benevides, Clícia Maria de JesusVeloso, Márcia Cristina da CunhaPereira, Pedro Afonso de PaulaAndrade, Jailson Bittencourt deBenevides, Clícia Maria de JesusVeloso, Márcia Cristina da CunhaPereira, Pedro Afonso de PaulaAndrade, Jailson Bittencourt de2012-02-08T17:30:45Z20110308-8146http://www.repositorio.ufba.br/ri/handle/ri/5339v. 126, n. 3.Acesso restrito: Texto completo. p. 927-934.Carotenoids are present in many foods. Due to their polyenic chains, they undergo oxidation reactions which may give several compounds. Ozone, a powerful antimicrobial agent, is applied in the food industry due to its high reactivity and penetrability. This work presents a chemical study of the degradation of b-carotene in solutions, under the influence of ozone. The experiments were carried out at ozone concentrations ranging from 0.8 to 2.5 ppm and the b-carotene solutions were sampled and analysed from zero to seven hours of reaction. The oxidation products were collected in C18 cartridges coated with dinitrophenylhydrazine and the hydrazones formed were analysed by LC-MS. The oxidation reaction was found to follow a zero order kinetic model and the b-carotene decay ranged between 17.2% and 99.8%. Fourteen oxidation products were tentatively identified, amongst them eight which had not been cited yet in the literature as oxidation products of b-carotene.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-02-08T17:30:45Z No. of bitstreams: 1 __pdn.sciencedirect.com_....0-S0308814610015001-main.pdf: 145019 bytes, checksum: 0f4b5180eebe7702c86b55a23c02c2f9 (MD5)Made available in DSpace on 2012-02-08T17:30:45Z (GMT). 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dc.title.pt_BR.fl_str_mv A chemical study of b-carotene oxidation by ozone in an organic model system and the identification of the resulting products
dc.title.alternative.pt_BR.fl_str_mv Food chemistry
title A chemical study of b-carotene oxidation by ozone in an organic model system and the identification of the resulting products
spellingShingle A chemical study of b-carotene oxidation by ozone in an organic model system and the identification of the resulting products
Benevides, Clícia Maria de Jesus
b-Carotene
Ozonolysis
Organic model system
Oxidation products
LC-MS
title_short A chemical study of b-carotene oxidation by ozone in an organic model system and the identification of the resulting products
title_full A chemical study of b-carotene oxidation by ozone in an organic model system and the identification of the resulting products
title_fullStr A chemical study of b-carotene oxidation by ozone in an organic model system and the identification of the resulting products
title_full_unstemmed A chemical study of b-carotene oxidation by ozone in an organic model system and the identification of the resulting products
title_sort A chemical study of b-carotene oxidation by ozone in an organic model system and the identification of the resulting products
author Benevides, Clícia Maria de Jesus
author_facet Benevides, Clícia Maria de Jesus
Veloso, Márcia Cristina da Cunha
Pereira, Pedro Afonso de Paula
Andrade, Jailson Bittencourt de
author_role author
author2 Veloso, Márcia Cristina da Cunha
Pereira, Pedro Afonso de Paula
Andrade, Jailson Bittencourt de
author2_role author
author
author
dc.contributor.author.fl_str_mv Benevides, Clícia Maria de Jesus
Veloso, Márcia Cristina da Cunha
Pereira, Pedro Afonso de Paula
Andrade, Jailson Bittencourt de
Benevides, Clícia Maria de Jesus
Veloso, Márcia Cristina da Cunha
Pereira, Pedro Afonso de Paula
Andrade, Jailson Bittencourt de
dc.subject.por.fl_str_mv b-Carotene
Ozonolysis
Organic model system
Oxidation products
LC-MS
topic b-Carotene
Ozonolysis
Organic model system
Oxidation products
LC-MS
description Acesso restrito: Texto completo. p. 927-934.
publishDate 2011
dc.date.issued.fl_str_mv 2011
dc.date.accessioned.fl_str_mv 2012-02-08T17:30:45Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/5339
dc.identifier.issn.none.fl_str_mv 0308-8146
dc.identifier.number.pt_BR.fl_str_mv v. 126, n. 3.
identifier_str_mv 0308-8146
v. 126, n. 3.
url http://www.repositorio.ufba.br/ri/handle/ri/5339
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.pt_BR.fl_str_mv http://dx.doi.org.ez10.periodicos.capes.gov.br/10.1016/j.foodchem.2010.11.082
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
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collection Repositório Institucional da UFBA
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