Extraction/fractionation and deacidification of wheat germ oil using supercritical carbon dioxide

Detalhes bibliográficos
Autor(a) principal: Zacchi,P.
Data de Publicação: 2006
Outros Autores: Daghero,J., Jaeger,P., Eggers,R.
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=S0104-66322006000100011
Resumo: Wheat germ oil was obtained by mechanical pressing using a small-scale screw press and by supercritical extraction in a pilot plant. With this last method, different pressures and temperatures were tested and the tocopherol concentration in the extract was monitored during extraction. Then supercritical extracted oil as well as commercial pressed oil were deacidified in a countercurrent column using supercritical carbon dioxide as solvent under different operating conditions. Samples of extract, refined oil and feed oil were analyzed for free fatty acids (FFA) and tocopherol contents. The results show that oil with a higher tocopherol content can be obtained by supercritical extraction-fractionation and that FFA can be effectively removed by countercurrent rectification while the tocopherol content is only slightly reduced.
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spelling Extraction/fractionation and deacidification of wheat germ oil using supercritical carbon dioxideFree fatty acidsFFAWheat germ oilSupercritical fluidsTocopherolsWheat germ oil was obtained by mechanical pressing using a small-scale screw press and by supercritical extraction in a pilot plant. With this last method, different pressures and temperatures were tested and the tocopherol concentration in the extract was monitored during extraction. Then supercritical extracted oil as well as commercial pressed oil were deacidified in a countercurrent column using supercritical carbon dioxide as solvent under different operating conditions. Samples of extract, refined oil and feed oil were analyzed for free fatty acids (FFA) and tocopherol contents. The results show that oil with a higher tocopherol content can be obtained by supercritical extraction-fractionation and that FFA can be effectively removed by countercurrent rectification while the tocopherol content is only slightly reduced.Brazilian Society of Chemical Engineering2006-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322006000100011Brazilian Journal of Chemical Engineering v.23 n.1 2006reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322006000100011info:eu-repo/semantics/openAccessZacchi,P.Daghero,J.Jaeger,P.Eggers,R.eng2006-07-07T00:00:00Zoai:scielo:S0104-66322006000100011Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2006-07-07T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv Extraction/fractionation and deacidification of wheat germ oil using supercritical carbon dioxide
title Extraction/fractionation and deacidification of wheat germ oil using supercritical carbon dioxide
spellingShingle Extraction/fractionation and deacidification of wheat germ oil using supercritical carbon dioxide
Zacchi,P.
Free fatty acids
FFA
Wheat germ oil
Supercritical fluids
Tocopherols
title_short Extraction/fractionation and deacidification of wheat germ oil using supercritical carbon dioxide
title_full Extraction/fractionation and deacidification of wheat germ oil using supercritical carbon dioxide
title_fullStr Extraction/fractionation and deacidification of wheat germ oil using supercritical carbon dioxide
title_full_unstemmed Extraction/fractionation and deacidification of wheat germ oil using supercritical carbon dioxide
title_sort Extraction/fractionation and deacidification of wheat germ oil using supercritical carbon dioxide
author Zacchi,P.
author_facet Zacchi,P.
Daghero,J.
Jaeger,P.
Eggers,R.
author_role author
author2 Daghero,J.
Jaeger,P.
Eggers,R.
author2_role author
author
author
dc.contributor.author.fl_str_mv Zacchi,P.
Daghero,J.
Jaeger,P.
Eggers,R.
dc.subject.por.fl_str_mv Free fatty acids
FFA
Wheat germ oil
Supercritical fluids
Tocopherols
topic Free fatty acids
FFA
Wheat germ oil
Supercritical fluids
Tocopherols
description Wheat germ oil was obtained by mechanical pressing using a small-scale screw press and by supercritical extraction in a pilot plant. With this last method, different pressures and temperatures were tested and the tocopherol concentration in the extract was monitored during extraction. Then supercritical extracted oil as well as commercial pressed oil were deacidified in a countercurrent column using supercritical carbon dioxide as solvent under different operating conditions. Samples of extract, refined oil and feed oil were analyzed for free fatty acids (FFA) and tocopherol contents. The results show that oil with a higher tocopherol content can be obtained by supercritical extraction-fractionation and that FFA can be effectively removed by countercurrent rectification while the tocopherol content is only slightly reduced.
publishDate 2006
dc.date.none.fl_str_mv 2006-03-01
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=S0104-66322006000100011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322006000100011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0104-66322006000100011
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.23 n.1 2006
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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