Characterization and quantification by gas chromatography of free steroids in unsaponifiable matter of vegetable oils

Detalhes bibliográficos
Autor(a) principal: Bezerra,Kelly da S.
Data de Publicação: 2014
Outros Autores: Antoniosi Filho,Nelson R.
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=S0103-50532014000200006
Resumo: The study of free steroids and their use in oil characterization is interesting because the distribution of these steroids varies from one oil to another. Although several papers analyze the most abundant steroids in oils, studies including less common steroids are scarce. Free steroids were extracted from unsaponifiable fraction using the saponification reaction adapted micro-scale. After extraction, steroids were characterized by gas chromatography (GC) using flame ionization (FID) and mass spectrometry (MS) detectors. All chromatographic peaks in the oils that could belong to free steroids were characterized and quantified. Results evidenced great diversity in types and levels of free steroids. Corn and moringa oils had higher levels of steroids than the other oils analyzed. Babassu, palm kernel and canola oils had the lowest steroid levels.
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spelling Characterization and quantification by gas chromatography of free steroids in unsaponifiable matter of vegetable oilsphytosterolssaponification reactionGC-FIDGC-MSThe study of free steroids and their use in oil characterization is interesting because the distribution of these steroids varies from one oil to another. Although several papers analyze the most abundant steroids in oils, studies including less common steroids are scarce. Free steroids were extracted from unsaponifiable fraction using the saponification reaction adapted micro-scale. After extraction, steroids were characterized by gas chromatography (GC) using flame ionization (FID) and mass spectrometry (MS) detectors. All chromatographic peaks in the oils that could belong to free steroids were characterized and quantified. Results evidenced great diversity in types and levels of free steroids. Corn and moringa oils had higher levels of steroids than the other oils analyzed. Babassu, palm kernel and canola oils had the lowest steroid levels.Sociedade Brasileira de Química2014-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000200006Journal of the Brazilian Chemical Society v.25 n.2 2014reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20130288info:eu-repo/semantics/openAccessBezerra,Kelly da S.Antoniosi Filho,Nelson R.eng2014-02-14T00:00:00Zoai:scielo:S0103-50532014000200006Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2014-02-14T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Characterization and quantification by gas chromatography of free steroids in unsaponifiable matter of vegetable oils
title Characterization and quantification by gas chromatography of free steroids in unsaponifiable matter of vegetable oils
spellingShingle Characterization and quantification by gas chromatography of free steroids in unsaponifiable matter of vegetable oils
Bezerra,Kelly da S.
phytosterols
saponification reaction
GC-FID
GC-MS
title_short Characterization and quantification by gas chromatography of free steroids in unsaponifiable matter of vegetable oils
title_full Characterization and quantification by gas chromatography of free steroids in unsaponifiable matter of vegetable oils
title_fullStr Characterization and quantification by gas chromatography of free steroids in unsaponifiable matter of vegetable oils
title_full_unstemmed Characterization and quantification by gas chromatography of free steroids in unsaponifiable matter of vegetable oils
title_sort Characterization and quantification by gas chromatography of free steroids in unsaponifiable matter of vegetable oils
author Bezerra,Kelly da S.
author_facet Bezerra,Kelly da S.
Antoniosi Filho,Nelson R.
author_role author
author2 Antoniosi Filho,Nelson R.
author2_role author
dc.contributor.author.fl_str_mv Bezerra,Kelly da S.
Antoniosi Filho,Nelson R.
dc.subject.por.fl_str_mv phytosterols
saponification reaction
GC-FID
GC-MS
topic phytosterols
saponification reaction
GC-FID
GC-MS
description The study of free steroids and their use in oil characterization is interesting because the distribution of these steroids varies from one oil to another. Although several papers analyze the most abundant steroids in oils, studies including less common steroids are scarce. Free steroids were extracted from unsaponifiable fraction using the saponification reaction adapted micro-scale. After extraction, steroids were characterized by gas chromatography (GC) using flame ionization (FID) and mass spectrometry (MS) detectors. All chromatographic peaks in the oils that could belong to free steroids were characterized and quantified. Results evidenced great diversity in types and levels of free steroids. Corn and moringa oils had higher levels of steroids than the other oils analyzed. Babassu, palm kernel and canola oils had the lowest steroid levels.
publishDate 2014
dc.date.none.fl_str_mv 2014-02-01
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=S0103-50532014000200006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000200006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/0103-5053.20130288
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.25 n.2 2014
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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