Efficiencies of acid and base-catalyzed methylation of vegetable oils by ambient mass spectrometry

Detalhes bibliográficos
Autor(a) principal: Santos Júnior,Oscar O.
Data de Publicação: 2013
Outros Autores: Montanher,Paula F., Bonafé,Elton G., Maruyama,Swami A., Carbonera,Fabiana, Alberici,Rosana M., Eberlin,Marcos N., Visentainer,Jesuí V.
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=S0103-50532013001100008
Resumo: The fatty acids (FA) profile is an important parameter for quality control and typification for foods in general. These profiles work as a sort of "fingerprint", and may be useful to monitor frauds and deterioration of diverse types of foods. For vegetable oils, the FA profile is commonly determined after hydrolysis, methylation and gas chromatography (GC) analysis. In this work, the acid and base-catalyzed soybean oil methylation methods was monitored via GC-FID and also by ambient sonic-spray ionization mass spectrometry (EASI-MS). The base-catalyzed method is much superior regarding other esterification assays, because it is cheaper, less toxic, no oxidation products are formed and its reaction yield is greater (95.66% m/m against 92.86% and 94.51% from acid-catalyzed methylation methods, respectively).
id SBQ-2_3b82d045dd0d24d49dc66f67e279ee4a
oai_identifier_str oai:scielo:S0103-50532013001100008
network_acronym_str SBQ-2
network_name_str Journal of the Brazilian Chemical Society (Online)
repository_id_str
spelling Efficiencies of acid and base-catalyzed methylation of vegetable oils by ambient mass spectrometryhydroperoxidessoybean oilacid and base-catalyzed methylationambient mass spectrometryThe fatty acids (FA) profile is an important parameter for quality control and typification for foods in general. These profiles work as a sort of "fingerprint", and may be useful to monitor frauds and deterioration of diverse types of foods. For vegetable oils, the FA profile is commonly determined after hydrolysis, methylation and gas chromatography (GC) analysis. In this work, the acid and base-catalyzed soybean oil methylation methods was monitored via GC-FID and also by ambient sonic-spray ionization mass spectrometry (EASI-MS). The base-catalyzed method is much superior regarding other esterification assays, because it is cheaper, less toxic, no oxidation products are formed and its reaction yield is greater (95.66% m/m against 92.86% and 94.51% from acid-catalyzed methylation methods, respectively).Sociedade Brasileira de Química2013-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013001100008Journal of the Brazilian Chemical Society v.24 n.11 2013reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20130221info:eu-repo/semantics/openAccessSantos Júnior,Oscar O.Montanher,Paula F.Bonafé,Elton G.Maruyama,Swami A.Carbonera,FabianaAlberici,Rosana M.Eberlin,Marcos N.Visentainer,Jesuí V.eng2016-08-18T00:00:00Zoai:scielo:S0103-50532013001100008Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2016-08-18T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Efficiencies of acid and base-catalyzed methylation of vegetable oils by ambient mass spectrometry
title Efficiencies of acid and base-catalyzed methylation of vegetable oils by ambient mass spectrometry
spellingShingle Efficiencies of acid and base-catalyzed methylation of vegetable oils by ambient mass spectrometry
Santos Júnior,Oscar O.
hydroperoxides
soybean oil
acid and base-catalyzed methylation
ambient mass spectrometry
title_short Efficiencies of acid and base-catalyzed methylation of vegetable oils by ambient mass spectrometry
title_full Efficiencies of acid and base-catalyzed methylation of vegetable oils by ambient mass spectrometry
title_fullStr Efficiencies of acid and base-catalyzed methylation of vegetable oils by ambient mass spectrometry
title_full_unstemmed Efficiencies of acid and base-catalyzed methylation of vegetable oils by ambient mass spectrometry
title_sort Efficiencies of acid and base-catalyzed methylation of vegetable oils by ambient mass spectrometry
author Santos Júnior,Oscar O.
author_facet Santos Júnior,Oscar O.
Montanher,Paula F.
Bonafé,Elton G.
Maruyama,Swami A.
Carbonera,Fabiana
Alberici,Rosana M.
Eberlin,Marcos N.
Visentainer,Jesuí V.
author_role author
author2 Montanher,Paula F.
Bonafé,Elton G.
Maruyama,Swami A.
Carbonera,Fabiana
Alberici,Rosana M.
Eberlin,Marcos N.
Visentainer,Jesuí V.
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Santos Júnior,Oscar O.
Montanher,Paula F.
Bonafé,Elton G.
Maruyama,Swami A.
Carbonera,Fabiana
Alberici,Rosana M.
Eberlin,Marcos N.
Visentainer,Jesuí V.
dc.subject.por.fl_str_mv hydroperoxides
soybean oil
acid and base-catalyzed methylation
ambient mass spectrometry
topic hydroperoxides
soybean oil
acid and base-catalyzed methylation
ambient mass spectrometry
description The fatty acids (FA) profile is an important parameter for quality control and typification for foods in general. These profiles work as a sort of "fingerprint", and may be useful to monitor frauds and deterioration of diverse types of foods. For vegetable oils, the FA profile is commonly determined after hydrolysis, methylation and gas chromatography (GC) analysis. In this work, the acid and base-catalyzed soybean oil methylation methods was monitored via GC-FID and also by ambient sonic-spray ionization mass spectrometry (EASI-MS). The base-catalyzed method is much superior regarding other esterification assays, because it is cheaper, less toxic, no oxidation products are formed and its reaction yield is greater (95.66% m/m against 92.86% and 94.51% from acid-catalyzed methylation methods, respectively).
publishDate 2013
dc.date.none.fl_str_mv 2013-11-01
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=S0103-50532013001100008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013001100008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/0103-5053.20130221
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.24 n.11 2013
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
_version_ 1750318175321325568

Registros relacionados