Extraction of palm oil using propane, ethanol and its mixtures as compressed solvent

⿢The work presents a study on palm oil extraction using ethanol and propane.⿢The use of propane as solvent provided high yields and apparent solubility.⿢Temperature, pressure and flow rate presented just slight effects on the yields.⿢Ethanol and ethanol/propane mixtures provide yields higher than 50...

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Published inThe Journal of supercritical fluids Vol. 81; pp. 245 - 253
Main Authors Jesus, Anderson A., Almeida, Lays C., Silva, Edson A., Filho, Lucio C., Egues, Silvia M.S., Franceschi, Elton, Fortuny, Montserrat, Santos, Alexandre F., Araujo, Jackson, Sousa, Elisa M.B.D., Dariva, Claudio
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2013
Subjects
Apparent solubility
Carotenoid content
Extraction
Kinetic extraction modeling
Palm oil
Propane/ethanol mixtures
Kinetic extraction modeling
Palm oil
Extraction
Carotenoid content
Propane/ethanol mixtures
Apparent solubility
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Abstract ⿢The work presents a study on palm oil extraction using ethanol and propane.⿢The use of propane as solvent provided high yields and apparent solubility.⿢Temperature, pressure and flow rate presented just slight effects on the yields.⿢Ethanol and ethanol/propane mixtures provide yields higher than 50%.⿢Low solubility of carotenoids in ethanol suggests its use as a selective solvent. This work is aimed to investigate the extraction of palm oil using pressurized ethanol and propane as solvents. The effects of temperature (293⿿333K), pressure (from 10 to 20MPa), solvent flow rate (from 1 to 5mL/min), and composition of the solvent mixture were evaluated on the oil extraction yield, and chemical profile of the extracted oils. The experiments were conducted in a 100mL extractor coupled to a HPLC pump for ethanol and a syringe pump for the propane displacement. Global yields up to 75wt% were obtained in the experiments. The kinetic profiles of the extractions were described by the Sovová⿿s model, which presented good agreement with the experimental observations. The palm oils extracted with distinct solvents were characterized regarding its density and viscosity in a temperature range from 293 to 343K, its chemical profile determined by GC/MS, and carotenoid content.
AbstractList ⿢The work presents a study on palm oil extraction using ethanol and propane.⿢The use of propane as solvent provided high yields and apparent solubility.⿢Temperature, pressure and flow rate presented just slight effects on the yields.⿢Ethanol and ethanol/propane mixtures provide yields higher than 50%.⿢Low solubility of carotenoids in ethanol suggests its use as a selective solvent. This work is aimed to investigate the extraction of palm oil using pressurized ethanol and propane as solvents. The effects of temperature (293⿿333K), pressure (from 10 to 20MPa), solvent flow rate (from 1 to 5mL/min), and composition of the solvent mixture were evaluated on the oil extraction yield, and chemical profile of the extracted oils. The experiments were conducted in a 100mL extractor coupled to a HPLC pump for ethanol and a syringe pump for the propane displacement. Global yields up to 75wt% were obtained in the experiments. The kinetic profiles of the extractions were described by the Sovová⿿s model, which presented good agreement with the experimental observations. The palm oils extracted with distinct solvents were characterized regarding its density and viscosity in a temperature range from 293 to 343K, its chemical profile determined by GC/MS, and carotenoid content.
Author Almeida, Lays C.
Dariva, Claudio
Filho, Lucio C.
Santos, Alexandre F.
Egues, Silvia M.S.
Jesus, Anderson A.
Sousa, Elisa M.B.D.
Fortuny, Montserrat
Silva, Edson A.
Franceschi, Elton
Araujo, Jackson
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  givenname: Anderson A.
  surname: Jesus
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  givenname: Lays C.
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  givenname: Edson A.
  surname: Silva
  fullname: Silva, Edson A.
  organization: Departamento de Eng. Química, Universidade Estadual Maringá, Maringá, PR 87020-900, Brazil
– sequence: 4
  givenname: Lucio C.
  surname: Filho
  fullname: Filho, Lucio C.
  organization: Departamento de Eng. Química, Universidade Estadual Maringá, Maringá, PR 87020-900, Brazil
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  givenname: Silvia M.S.
  surname: Egues
  fullname: Egues, Silvia M.S.
  organization: Núcleo de Estudos em Sistemas Coloidais, Instituto de Tecnologia e Pesquisa, PEP/UNIT, Aracaju, SE 49032-490, Brazil
– sequence: 6
  givenname: Elton
  surname: Franceschi
  fullname: Franceschi, Elton
  organization: Núcleo de Estudos em Sistemas Coloidais, Instituto de Tecnologia e Pesquisa, PEP/UNIT, Aracaju, SE 49032-490, Brazil
– sequence: 7
  givenname: Montserrat
  surname: Fortuny
  fullname: Fortuny, Montserrat
  organization: Núcleo de Estudos em Sistemas Coloidais, Instituto de Tecnologia e Pesquisa, PEP/UNIT, Aracaju, SE 49032-490, Brazil
– sequence: 8
  givenname: Alexandre F.
  surname: Santos
  fullname: Santos, Alexandre F.
  organization: Núcleo de Estudos em Sistemas Coloidais, Instituto de Tecnologia e Pesquisa, PEP/UNIT, Aracaju, SE 49032-490, Brazil
– sequence: 9
  givenname: Jackson
  surname: Araujo
  fullname: Araujo, Jackson
  organization: Departamento de Eng. Química, Universidade Federal do Rio Grande do Norte, Natal, RN 59078-970, Brazil
– sequence: 10
  givenname: Elisa M.B.D.
  surname: Sousa
  fullname: Sousa, Elisa M.B.D.
  organization: Departamento de Eng. Química, Universidade Federal do Rio Grande do Norte, Natal, RN 59078-970, Brazil
– sequence: 11
  givenname: Claudio
  surname: Dariva
  fullname: Dariva, Claudio
  email: claudio.dariva@pq.cnpq.br, claudio.dariva@yahoo.com.br
  organization: Núcleo de Estudos em Sistemas Coloidais, Instituto de Tecnologia e Pesquisa, PEP/UNIT, Aracaju, SE 49032-490, Brazil
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Keywords Kinetic extraction modeling
Palm oil
Extraction
Carotenoid content
Propane/ethanol mixtures
Apparent solubility
Language English
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Snippet ⿢The work presents a study on palm oil extraction using ethanol and propane.⿢The use of propane as solvent provided high yields and apparent...
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SubjectTerms Apparent solubility
Carotenoid content
Extraction
Kinetic extraction modeling
Palm oil
Propane/ethanol mixtures
Title Extraction of palm oil using propane, ethanol and its mixtures as compressed solvent
URI https://dx.doi.org/10.1016/j.supflu.2013.06.011
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