ETHANOLIC AND HYDROALCOHOLIC EXTRACTS OF PITANGA LEAVES (Eugenia uniflora L.) AND THEIR FRACTIONATION BY SUPERCRITICAL TECHNOLOGY

Detalhes bibliográficos
Autor(a) principal: Garmus,Tábata T.
Data de Publicação: 2019
Outros Autores: Kopf,Sarah F. M., Paula,Julia T., Aguiar,Ana C., Duarte,Gustavo H. B., Eberlin,Marcos N., Cabral,Fernando A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Chemical Engineering
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322019000201041
Resumo: Abstract Hydroalcoholic extracts prepared by conventional methods (in stirred vessel at 25 °C and 1 bar) and, hydroalcoholic and supercritical carbon dioxide (scCO2) extracts prepared in fixed bed extractors (60 ºC and 400 bar) were obtained from pitanga leaves (Eugenia uniflora L.) in order to recover phenolic compounds. Hydroalcoholic and ethanolic extracts obtained in fixed bed were further fractionated in four separators by gradual pressure reduction, using scCO2 as an antisolvent. All extracts and fractions were characterized in terms of extraction yield and the presence of total phenolics and flavonoids. Solvents were found to significantly influence the extraction yields and composition. Yields increased as a function of polarity, whereas the hydroalcoholic extractions displayed the highest yields and the highest amounts of extracted phenols and flavonoids.
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spelling ETHANOLIC AND HYDROALCOHOLIC EXTRACTS OF PITANGA LEAVES (Eugenia uniflora L.) AND THEIR FRACTIONATION BY SUPERCRITICAL TECHNOLOGYEugenia uniflora L.FractionationSupercritical extractionPhenolic compoundsAbstract Hydroalcoholic extracts prepared by conventional methods (in stirred vessel at 25 °C and 1 bar) and, hydroalcoholic and supercritical carbon dioxide (scCO2) extracts prepared in fixed bed extractors (60 ºC and 400 bar) were obtained from pitanga leaves (Eugenia uniflora L.) in order to recover phenolic compounds. Hydroalcoholic and ethanolic extracts obtained in fixed bed were further fractionated in four separators by gradual pressure reduction, using scCO2 as an antisolvent. All extracts and fractions were characterized in terms of extraction yield and the presence of total phenolics and flavonoids. Solvents were found to significantly influence the extraction yields and composition. Yields increased as a function of polarity, whereas the hydroalcoholic extractions displayed the highest yields and the highest amounts of extracted phenols and flavonoids.Brazilian Society of Chemical Engineering2019-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322019000201041Brazilian Journal of Chemical Engineering v.36 n.2 2019reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/0104-6632.20190362s20180159info:eu-repo/semantics/openAccessGarmus,Tábata T.Kopf,Sarah F. M.Paula,Julia T.Aguiar,Ana C.Duarte,Gustavo H. B.Eberlin,Marcos N.Cabral,Fernando A.eng2019-09-25T00:00:00Zoai:scielo:S0104-66322019000201041Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2019-09-25T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv ETHANOLIC AND HYDROALCOHOLIC EXTRACTS OF PITANGA LEAVES (Eugenia uniflora L.) AND THEIR FRACTIONATION BY SUPERCRITICAL TECHNOLOGY
title ETHANOLIC AND HYDROALCOHOLIC EXTRACTS OF PITANGA LEAVES (Eugenia uniflora L.) AND THEIR FRACTIONATION BY SUPERCRITICAL TECHNOLOGY
spellingShingle ETHANOLIC AND HYDROALCOHOLIC EXTRACTS OF PITANGA LEAVES (Eugenia uniflora L.) AND THEIR FRACTIONATION BY SUPERCRITICAL TECHNOLOGY
Garmus,Tábata T.
Eugenia uniflora L.
Fractionation
Supercritical extraction
Phenolic compounds
title_short ETHANOLIC AND HYDROALCOHOLIC EXTRACTS OF PITANGA LEAVES (Eugenia uniflora L.) AND THEIR FRACTIONATION BY SUPERCRITICAL TECHNOLOGY
title_full ETHANOLIC AND HYDROALCOHOLIC EXTRACTS OF PITANGA LEAVES (Eugenia uniflora L.) AND THEIR FRACTIONATION BY SUPERCRITICAL TECHNOLOGY
title_fullStr ETHANOLIC AND HYDROALCOHOLIC EXTRACTS OF PITANGA LEAVES (Eugenia uniflora L.) AND THEIR FRACTIONATION BY SUPERCRITICAL TECHNOLOGY
title_full_unstemmed ETHANOLIC AND HYDROALCOHOLIC EXTRACTS OF PITANGA LEAVES (Eugenia uniflora L.) AND THEIR FRACTIONATION BY SUPERCRITICAL TECHNOLOGY
title_sort ETHANOLIC AND HYDROALCOHOLIC EXTRACTS OF PITANGA LEAVES (Eugenia uniflora L.) AND THEIR FRACTIONATION BY SUPERCRITICAL TECHNOLOGY
author Garmus,Tábata T.
author_facet Garmus,Tábata T.
Kopf,Sarah F. M.
Paula,Julia T.
Aguiar,Ana C.
Duarte,Gustavo H. B.
Eberlin,Marcos N.
Cabral,Fernando A.
author_role author
author2 Kopf,Sarah F. M.
Paula,Julia T.
Aguiar,Ana C.
Duarte,Gustavo H. B.
Eberlin,Marcos N.
Cabral,Fernando A.
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Garmus,Tábata T.
Kopf,Sarah F. M.
Paula,Julia T.
Aguiar,Ana C.
Duarte,Gustavo H. B.
Eberlin,Marcos N.
Cabral,Fernando A.
dc.subject.por.fl_str_mv Eugenia uniflora L.
Fractionation
Supercritical extraction
Phenolic compounds
topic Eugenia uniflora L.
Fractionation
Supercritical extraction
Phenolic compounds
description Abstract Hydroalcoholic extracts prepared by conventional methods (in stirred vessel at 25 °C and 1 bar) and, hydroalcoholic and supercritical carbon dioxide (scCO2) extracts prepared in fixed bed extractors (60 ºC and 400 bar) were obtained from pitanga leaves (Eugenia uniflora L.) in order to recover phenolic compounds. Hydroalcoholic and ethanolic extracts obtained in fixed bed were further fractionated in four separators by gradual pressure reduction, using scCO2 as an antisolvent. All extracts and fractions were characterized in terms of extraction yield and the presence of total phenolics and flavonoids. Solvents were found to significantly influence the extraction yields and composition. Yields increased as a function of polarity, whereas the hydroalcoholic extractions displayed the highest yields and the highest amounts of extracted phenols and flavonoids.
publishDate 2019
dc.date.none.fl_str_mv 2019-06-01
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=S0104-66322019000201041
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322019000201041
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0104-6632.20190362s20180159
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 Brazilian Society of Chemical Engineering
publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
dc.source.none.fl_str_mv Brazilian Journal of Chemical Engineering v.36 n.2 2019
reponame:Brazilian Journal of Chemical Engineering
instname:Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
instname_str Associação Brasileira de Engenharia Química (ABEQ)
instacron_str ABEQ
institution ABEQ
reponame_str Brazilian Journal of Chemical Engineering
collection Brazilian Journal of Chemical Engineering
repository.name.fl_str_mv Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)
repository.mail.fl_str_mv rgiudici@usp.br||rgiudici@usp.br
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