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Type: Artigo
Title: Oil extraction from semi-defatted babassu bagasse with ethanol: Liquid-liquid equilibrium and solid-liquid extraction in a single stage
Author: Sampaio Neto, Oscar Zalla
Gonçalves, Daniel
Bergara, Selma de Freitas
Batista, Eduardo Augusto Caldas
Meirelles, Antonio José de Almeida
Abstract: This study presents liquid-liquid (LLE) and solid-liquid extraction (SLE) data for systems involving babassu oil and ethanol at temperature range from 298.2 to 318.2 K. The babassu oil has a majority composition in saturated triacylglycerols, whereas the semi-defatted babassu bagasse had a moisture content of 6.9% ± 0.2 and oil mass fraction of 11.45% ± 0.01. The LLE data were well described by the NRTL thermodynamic model with an overall mean deviation of 0.67% in mass. The good oil solubility in the anhydrous ethanol was evidenced by its total miscibility at 318.2 K. SLE results revealed that the preferential oil retention in the raffinate phase was the determining factor for low oil concentrations in the extract phase. Comparing both LLE and SLE results it was verified that, despite the high oil solubility in ethanol, lower extraction yields were related to lower oil amounts in the extract, indicating the predominance of the solid-solute interaction
Subject: Bioetanol
Country: Reino Unido
Editor: Elsevier
Rights: Fechado
Identifier DOI: 10.1016/j.jfoodeng.2019.109845
Date Issue: 2020
Appears in Collections:FEA - Artigos e Outros Documentos

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