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dc.creatorARAÚJO, Marilena Emmi-
dc.creatorMACHADO, Nélio Teixeira de-
dc.creatorFRANÇA, Luiz Ferreira de-
dc.creatorMEIRELES, Maria Angela de Almeida-
dc.identifier.citationARAUJO, M.E. et al. Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide. Brazilian Journal of Chemical Engineering, São Paulo, v. 17, n. 3, p. 297-306, set. 2000. Disponível em: <>. Acesso em: 18 fev. 2014. <>.pt_BR
dc.description.abstractThe pupunha (Guilielma speciosa) is the fruit of a palm tree typical of the Brazilian Northern region, whose stem is used as a source of heart of palm. The fruit, which is about 65% pulp, is a source of oil and carotenes. In the present work, an analysis of the kinetics of supercritical extraction of oil from the pupunha pulp is presented. Carbon dioxide was used as solvent. The extractions were carried out at 25 MPa and 323 K and 30 MPa and 318 K. The chemical composition of the extracts in terms of fatty acids was determined by gas chromatography. The amount of oleic acid, a saturated fatty acid, in the CO2 extracts was larger than that in the extract obtained with hexane. The overall extraction curves were modeled using the single-parameter model proposed in the literature to describe the desorption of toluene from activated coal.pt_BR
dc.rightsAcesso Aberto-
dc.subjectExtração com fluído supercríticopt_BR
dc.subjectExtração supercríticapt_BR
dc.subjectÓleo de pupunhapt_BR
dc.subjectModelagem da curva de extraçãopt_BR
dc.subjectGuilielma speciosapt_BR
dc.titleSupercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxidept_BR
dc.typeArtigo de Periódicopt_BR
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