Please use this identifier to cite or link to this item: http://repositorio.ufpa.br:8080/jspui/handle/2011/5286
Title: Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide
metadata.dc.creator: ARAÚJO, Marilena Emmi
MACHADO, Nélio Teixeira de
FRANÇA, Luiz Ferreira de
MEIRELES, Maria Angela de Almeida
Keywords: Pupunha
Extração com fluído supercrítico
Extração supercrítica
Óleo de pupunha
Carotenes
Modelagem da curva de extração
Guilielma speciosa
Issue Date: Sep-2000
Citation: ARAUJO, 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: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000300005&lng=pt&nrm=iso>. Acesso em: 18 fev. 2014. <http://dx.doi.org/10.1590/S0104-66322000000300005>.
Abstract: The 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.
URI: http://repositorio.ufpa.br/jspui/handle/2011/5286
ISSN: 0104-6632
Appears in Collections:Artigos Científicos - FEQ/ITEC

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