Supercritical extraction of pupunha (Guilielma speciosa) oil in a fixed bed using carbon dioxide

AUTOR(ES)

Araújo, M.E., Machado, N.T., França, L.F., Meireles, M.A.A.

FONTE

Brazilian Journal of Chemical Engineering

DATA DE PUBLICAÇÃO

2000-09

RESUMO

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.

Documentos Relacionados

• Extraction/fractionation and deacidification of wheat germ oil using supercritical carbon dioxide
• Extraction of bixin from annatto seeds using supercritical carbon dioxide
• MODELING OF THE EXTRACTION PROCESS OF TEA SEED OIL WITH SUPERCRITICAL CARBON DIOXIDE
• Supercritical carbon dioxide extraction of macadamia (Macadamia integrifolia) nut oil: experiments and modeling
• Supercritical carbon dioxide extraction of methylxanthines from maté tea leaves