The effect of pH on the formation of volatile compounds produced by heating a model system containing 5’-Imp and cysteine

Detalhes bibliográficos
Autor(a) principal: Madruga,Marta Suely
Data de Publicação: 1998
Outros Autores: Mottram,Donald S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531998000300010
Resumo: The identification of volatile compounds formed from the reactions of Inosine-5’-Monophosphate (5’-IMP) with Cysteine at three different pH (3.0; 4.5; 6.0) and 140 °C were performed using dynamic headspace analysis. The results gave over 90 volatile compounds, mainly heterocyclic compounds, including sulphur containing furans, thiophenes, thiazoles, furans, alkyl sulphides, bicyclic compounds and cyclic sulphides. The studies showed that sulphur-substituted furans, mercaptoketones and alkylfurans were formed mainly at acidic pH, while pyrazines were completely inhibited at high pH. These findings support an earleir observation that pH has a great influence on volatile compounds formed in Maillard type reactions.
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spelling The effect of pH on the formation of volatile compounds produced by heating a model system containing 5’-Imp and cysteinevolatile compoundspHcysteineinosine-5’-monophosphateThe identification of volatile compounds formed from the reactions of Inosine-5’-Monophosphate (5’-IMP) with Cysteine at three different pH (3.0; 4.5; 6.0) and 140 °C were performed using dynamic headspace analysis. The results gave over 90 volatile compounds, mainly heterocyclic compounds, including sulphur containing furans, thiophenes, thiazoles, furans, alkyl sulphides, bicyclic compounds and cyclic sulphides. The studies showed that sulphur-substituted furans, mercaptoketones and alkylfurans were formed mainly at acidic pH, while pyrazines were completely inhibited at high pH. These findings support an earleir observation that pH has a great influence on volatile compounds formed in Maillard type reactions.Sociedade Brasileira de Química1998-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531998000300010Journal of the Brazilian Chemical Society v.9 n.3 1998reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50531998000300010info:eu-repo/semantics/openAccessMadruga,Marta SuelyMottram,Donald S.eng2002-11-06T00:00:00Zoai:scielo:S0103-50531998000300010Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2002-11-06T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv The effect of pH on the formation of volatile compounds produced by heating a model system containing 5’-Imp and cysteine
title The effect of pH on the formation of volatile compounds produced by heating a model system containing 5’-Imp and cysteine
spellingShingle The effect of pH on the formation of volatile compounds produced by heating a model system containing 5’-Imp and cysteine
Madruga,Marta Suely
volatile compounds
pH
cysteine
inosine-5’-monophosphate
title_short The effect of pH on the formation of volatile compounds produced by heating a model system containing 5’-Imp and cysteine
title_full The effect of pH on the formation of volatile compounds produced by heating a model system containing 5’-Imp and cysteine
title_fullStr The effect of pH on the formation of volatile compounds produced by heating a model system containing 5’-Imp and cysteine
title_full_unstemmed The effect of pH on the formation of volatile compounds produced by heating a model system containing 5’-Imp and cysteine
title_sort The effect of pH on the formation of volatile compounds produced by heating a model system containing 5’-Imp and cysteine
author Madruga,Marta Suely
author_facet Madruga,Marta Suely
Mottram,Donald S.
author_role author
author2 Mottram,Donald S.
author2_role author
dc.contributor.author.fl_str_mv Madruga,Marta Suely
Mottram,Donald S.
dc.subject.por.fl_str_mv volatile compounds
pH
cysteine
inosine-5’-monophosphate
topic volatile compounds
pH
cysteine
inosine-5’-monophosphate
description The identification of volatile compounds formed from the reactions of Inosine-5’-Monophosphate (5’-IMP) with Cysteine at three different pH (3.0; 4.5; 6.0) and 140 °C were performed using dynamic headspace analysis. The results gave over 90 volatile compounds, mainly heterocyclic compounds, including sulphur containing furans, thiophenes, thiazoles, furans, alkyl sulphides, bicyclic compounds and cyclic sulphides. The studies showed that sulphur-substituted furans, mercaptoketones and alkylfurans were formed mainly at acidic pH, while pyrazines were completely inhibited at high pH. These findings support an earleir observation that pH has a great influence on volatile compounds formed in Maillard type reactions.
publishDate 1998
dc.date.none.fl_str_mv 1998-05-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531998000300010
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531998000300010
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50531998000300010
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.9 n.3 1998
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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