The employment of ethanol as solvent to extract Brazil nut oil

Autor(es)

Sampaio Neto, Oscar Zalla ^{[1, 2]} ; Caldas Batista, Eduardo Augusto ^[2] ; de Almeida Meirelles, Antonio Jose ^[2]

Afiliação do(s) autor(es)

^[1] Univ Fed Mato Grosso, Nutr Fac, 2367 Fernando Correa da Costa Av, BR-78060900 Cuiaba, MT - Brazil

^[2] Univ Estadual Campinas, UNICAMP, Fac Food Engn, 80 Monteiro Lobato St, BR-13083862 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF CLEANER PRODUCTION; v. 180, p. 866-875, APR 10 2018.
• Citações Web of Science: 3

Resumo

The use of ethanol for oil extraction, focusing on the recovery of the residual oil from marc, is an alternative to increase the yield and also optimize the use of non-timber forest products of Brazilian biodiversity. For this reason, the liquid-liquid equilibrium data for pseudoternary systems containing Brazil nut oil + anhydrous ethanol + water and solid-liquid equilibrium data for semi-defatted Brazil nut marc + anhydrous ethanol were determined experimentally from 323.15 to 343.15 K. The adjusted NRTL parameters described the liquid-liquid equilibrium with average deviation between experimental and calculated compositions equal to 0.8271 % and the critical solution temperatures with correlation coefficient of 0.9986. Yield and solubility diagrams were obtained with the solid-liquid equilibrium data. When comparing in the same temperature and water content, the alcoholic phase (AP) from liquid-liquid equilibrium with the liquid phase (LP) from solid-liquid equilibrium, it was observed that the oil content in the alcoholic phase (AP) was always higher than that in the liquid phase (LP). This fact reinforces that the miscella oil concentration is influenced by the oil retention in the solid phase (SP). These data indicated the best conditions to use the ethanol to extract Brazil nut oil. (C) 2018 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 16/10636-8 - Da fábrica celular à biorrefinaria integrada Biodiesel-Bioetanol: uma abordagem sistêmica aplicada a problemas complexos em micro e macroescalas
• Beneficiário: Roberto de Campos Giordano
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Temático
• Processo FAPESP: 14/21252-0 - Equilíbrio e processos de produção de biocombustíveis e bioprodutos
• Beneficiário: Antonio José de Almeida Meirelles
• Modalidade de apoio: Auxílio à Pesquisa - Temático