1997
DOI: 10.1590/s0101-20611997000400008
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EXTRACTION OF OIL FROM PRESSED PALM OIL (Elaes guineensis) FIBERS USING SUPERCRITICAL CO2

Abstract: 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 20… Show more

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Cited by 28 publications
(23 citation statements)
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“…This palm is grown in humid tropical climates. Palm oil, also known as dendê oil, has a reddish color because of its high carotenoids content [31]. Carotenoids are substances with potent biological and antioxidant activities and are considered precursors for the synthesis of vitamin A.…”
Section: Introductionmentioning
confidence: 99%
“…This palm is grown in humid tropical climates. Palm oil, also known as dendê oil, has a reddish color because of its high carotenoids content [31]. Carotenoids are substances with potent biological and antioxidant activities and are considered precursors for the synthesis of vitamin A.…”
Section: Introductionmentioning
confidence: 99%
“…Many mathematical models for the extraction of substances from solid material using supercritical fluids were already presented in the literature (Sovová, 1994;França and Meirelles, 2000;Martínez et al, 2003). SFE is usually treated as a cylindrical bed of solid particles, and the pressurized fluid flows axially through it, removing the soluble compounds from the solid phase.…”
Section: Mathematical Modellingmentioning
confidence: 99%
“…The third case studied considers that the effective diffusion coefficient is constant and the mass transfer coefficient is variable. Several authors [8,11,16,18] have pointed out that the characteristics of the solid-solvent interface, which influence the mass transfer between the two phases and therefore the mass transfer coefficient, change through the course of the experiment as a consequence of the change in the concentration in the solid surface. To express the dependence of the mass transfer coefficient, an exponential expression was used, similar to that used in case 2:…”
Section: Finite Elements and The Diffusion Equationmentioning
confidence: 99%