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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Simulation and process design of continuous countercurrent ethanolic extraction of rice bran oil

Texto completo
Autor(es):
Bessa, Larissa C. B. A. ; Ferreira, Marcela C. ; Rodrigues, Christianne E. C. ; Batista, Eduardo A. C. ; Meirelles, Antonio J. A.
Número total de Autores: 5
Tipo de documento: Artigo Científico
Fonte: Journal of Food Engineering; v. 202, p. 99-113, JUN 2017.
Citações Web of Science: 10
Resumo

The overwhelming majority of all vegetable oils is extracted using solvent extraction, and the most widely used solvent is hexane. However, the use of ethanol has attractive advantages, including low toxicity, good operational security, as well as being obtained from a biorenewable source. In this study, a multiple-batch solid-liquid extraction system has been successfully employed to simulate continuous countercurrent ethanolic extraction of rice bran oil. Results showed that the extraction process using ethanol as solvent is feasible and facilitated by increases in temperature. The number of equilibrium stages required for rice bran oil extraction was theoretically determined, and it was shown that in the extraction process using hexane the number of ideal stages is lower than the number required when ethanol is used as solvent. Furthermore, a mathematical expression for determining the minimum flow of solvent depending on the equilibrium relationship between the extract and raffinate phases has been developed and implemented for both solvents. Given the potential fire hazard and harmful emissions risks of using hexane as solvent, extraction with ethanol showed to be a promising alternative to conventional extraction, completely exhausting the solid matrix with only five stages. (C) 2017 Elsevier Ltd. All rights reserved. (AU)

Processo FAPESP: 14/09446-4 - Desenvolvimento de processo de extração de óleos vegetais utilizando solventes alcoólicos: avaliação da composição do óleo e de alterações na fração protéica
Beneficiário:Christianne Elisabete da Costa Rodrigues
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 14/21252-0 - Equilíbrio e processos de produção de biocombustíveis e bioprodutos
Beneficiário:Antonio José de Almeida Meirelles
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 09/54137-1 - EMUS: aquisição de um analisador de distribuição de tamanho de partículas, um medidor de potencial zeta, um spray dryer e um sistema de cromatografia líquida de ultra alta pressão / espectrômetro de massa
Beneficiário:Miriam Dupas Hubinger
Linha de fomento: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
Processo FAPESP: 08/56258-8 - Phase equilibrium and purification processes in the production of biofuels and biocompounds
Beneficiário:Antonio José de Almeida Meirelles
Linha de fomento: Auxílio à Pesquisa - Programa BIOEN - Temático