Por favor, use este identificador para citar o enlazar este ítem: http://repositorio.ufpa.br:8080/jspui/handle/2011/5287
Tipo: Artigo de Periódico
Fecha de publicación : dic-1997
Autor(es): FRANÇA, Luiz Ferreira de
MEIRELES, Maria Angela de Almeida
Título : Extraction of oil from pressed palm oil (Elaes guineensis) fibers using supercritical CO2
Citación : FRANCA, Luiz F.; MEIRELES, M. Angela A. Extraction of oil from pressed palm oil (Elaes guineensis) fibers using supercritical CO2. Ciência e Tecnologia de Alimentos, Campinas, v. 17, n. 4, p. 384-388, dez. 1997. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20611997000400008&lng=pt&nrm=iso>. Acesso em: 18 fev. 2014. <http://dx.doi.org/10.1590/S0101-20611997000400008>.
Resumen : Residual fibers from palm oil production are a good source of carotene, since they contain more than 5% of the original oil, with about 5000 ppm of carotenoids. As carotenoids are thermosensitive molecules, supercritical CO2 can be used for oil recovery, because this technique employs low temperatures. In this work results of oil extraction experiments from pressed palm oil fibers are shown. Fibers were from AGROPALMA, an industry which is located in Tailândia (Pará, Brazil). Extractions were carried out at 200, 250 and 300 bar and at temperatures of 45 and 55oC. Oil was analyzed by UV/vis spectrophotometry for total carotene determination. Results showed a large increase in extraction rate from 200 to 250 bar and a small variation from 250 to 300 bar. The total amount of carotenes did not increase in the course of extraction at 300 bar, but it showed a large increase at 200 and at 250 bar. Free fatty acids are present in amounts larger than those found in commercial oils.
Palabras clave : Extração supercrítica
Óleo de dendê
Cinética de extração
Óleos vegetais
AGROPALMA
Tailândia - PA
ISSN : 1678-457X
metadata.dc.rights: Acesso Aberto
Aparece en las colecciones: Artigos Científicos - FEQ/ITEC

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