Extraction of citronella (Cymbopogon nardus) essential oil using supercritical co2: experimental data and mathematical modeling
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
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=S0104-66322011000200019 |
Resumo: | Citronella essential oil has more than eighty components, of which the most important ones are citronellal, geranial and limonene. They are present at high concentrations in the oil and are responsible for the repellent properties of the oil. The oil was extracted using supercritical carbon dioxide due to the high selectivity of the solvent. The operational conditions studied varied from 313.15 to 353.15 K for the temperature and the applied pressures were 6.2, 10.0, 15.0 and 180.0 MPa. Better values of efficiency of the extracted oil were obtained at higher pressure conditions. At constant temperature, the amount of extracted oil increased when the pressure increased, but the opposite occurred when the temperature increased at constant pressure. The composition of the essential oil was complex, although there were several main components in the oil and some waxes were presented in the extracted oils above 10.0 MPa. The results were modeled using a mathematical model in a predictive way, reproducing the extraction curves over the maximum time of the process. |
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Brazilian Journal of Chemical Engineering |
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Extraction of citronella (Cymbopogon nardus) essential oil using supercritical co2: experimental data and mathematical modelingCitronella oilGeraniolEmpirical modelExtraction modesCitronella essential oil has more than eighty components, of which the most important ones are citronellal, geranial and limonene. They are present at high concentrations in the oil and are responsible for the repellent properties of the oil. The oil was extracted using supercritical carbon dioxide due to the high selectivity of the solvent. The operational conditions studied varied from 313.15 to 353.15 K for the temperature and the applied pressures were 6.2, 10.0, 15.0 and 180.0 MPa. Better values of efficiency of the extracted oil were obtained at higher pressure conditions. At constant temperature, the amount of extracted oil increased when the pressure increased, but the opposite occurred when the temperature increased at constant pressure. The composition of the essential oil was complex, although there were several main components in the oil and some waxes were presented in the extracted oils above 10.0 MPa. The results were modeled using a mathematical model in a predictive way, reproducing the extraction curves over the maximum time of the process.Brazilian Society of Chemical Engineering2011-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322011000200019Brazilian Journal of Chemical Engineering v.28 n.2 2011reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322011000200019info:eu-repo/semantics/openAccessSilva,C. F.Moura,F. C.Mendes,M. F.Pessoa,F. L. P.eng2011-07-04T00:00:00Zoai:scielo:S0104-66322011000200019Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2011-07-04T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Extraction of citronella (Cymbopogon nardus) essential oil using supercritical co2: experimental data and mathematical modeling |
title |
Extraction of citronella (Cymbopogon nardus) essential oil using supercritical co2: experimental data and mathematical modeling |
spellingShingle |
Extraction of citronella (Cymbopogon nardus) essential oil using supercritical co2: experimental data and mathematical modeling Silva,C. F. Citronella oil Geraniol Empirical model Extraction modes |
title_short |
Extraction of citronella (Cymbopogon nardus) essential oil using supercritical co2: experimental data and mathematical modeling |
title_full |
Extraction of citronella (Cymbopogon nardus) essential oil using supercritical co2: experimental data and mathematical modeling |
title_fullStr |
Extraction of citronella (Cymbopogon nardus) essential oil using supercritical co2: experimental data and mathematical modeling |
title_full_unstemmed |
Extraction of citronella (Cymbopogon nardus) essential oil using supercritical co2: experimental data and mathematical modeling |
title_sort |
Extraction of citronella (Cymbopogon nardus) essential oil using supercritical co2: experimental data and mathematical modeling |
author |
Silva,C. F. |
author_facet |
Silva,C. F. Moura,F. C. Mendes,M. F. Pessoa,F. L. P. |
author_role |
author |
author2 |
Moura,F. C. Mendes,M. F. Pessoa,F. L. P. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Silva,C. F. Moura,F. C. Mendes,M. F. Pessoa,F. L. P. |
dc.subject.por.fl_str_mv |
Citronella oil Geraniol Empirical model Extraction modes |
topic |
Citronella oil Geraniol Empirical model Extraction modes |
description |
Citronella essential oil has more than eighty components, of which the most important ones are citronellal, geranial and limonene. They are present at high concentrations in the oil and are responsible for the repellent properties of the oil. The oil was extracted using supercritical carbon dioxide due to the high selectivity of the solvent. The operational conditions studied varied from 313.15 to 353.15 K for the temperature and the applied pressures were 6.2, 10.0, 15.0 and 180.0 MPa. Better values of efficiency of the extracted oil were obtained at higher pressure conditions. At constant temperature, the amount of extracted oil increased when the pressure increased, but the opposite occurred when the temperature increased at constant pressure. The composition of the essential oil was complex, although there were several main components in the oil and some waxes were presented in the extracted oils above 10.0 MPa. The results were modeled using a mathematical model in a predictive way, reproducing the extraction curves over the maximum time of the process. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-06-01 |
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=S0104-66322011000200019 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322011000200019 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322011000200019 |
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.28 n.2 2011 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 |
_version_ |
1754213173464924160 |