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Type: Artigo de periódico
Title: Defatting of annatto seeds using supercritical carbon dioxide as a pretreatment for the production of bixin: Experimental, modeling and economic evaluation of the process
Author: Albuquerque, CLC
Meireles, MAA
Abstract: In this work, supercritical CO2 extraction for defatting of annatto seeds was studied; the objective was to obtain an extract rich in tocotrienols and the defatted rich-bixin seeds. The process conditions were selected from global yield isotherms assays performed at 313 and 333 K, and 20,31, and 40 MPa; the ratio of solvent mass (S) to feed mass (F) was 35. For this S/F the highest extraction yield was 22 mg of extract/g dried seeds obtained at 333 K and 40 MPa. At these conditions a kinetic experiment was done to estimate the required parameters needed to estimate the cost of manufacturing (COM). COM was estimated using a commercial simulator; the model SFE plant had two extractor vessels in order to simulate continuous operation. A pilot plant size unit and two industrial size units were considered. The COM decreased from 124.58 to 109.27 US$/kg of extract as the extraction vessels capacities increased from 0.1 and 0.5 m(3); for the pilot plant with 2 vessels of 0.005 m(3) the COM was 300.00 US$/kg of extract. (c) 2012 Elsevier B.V. All rights reserved.
Subject: Bixaorellana L
Industrial scale simulation
Cost of manufacturing
Supercritical fluid extraction
Country: Holanda
Editor: Elsevier Science Bv
Citation: Journal Of Supercritical Fluids. Elsevier Science Bv, v. 66, n. 86, n. 95, 2012.
Rights: fechado
Identifier DOI: 10.1016/j.supflu.2012.01.004
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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