Effect of solvent hydration and temperature in the deacidification process of sunflower oil using ethanol

Author(s)

Cuevas, Maite S. ^{[1, 2]} ; Rodrigues, Christianne E. C. ^[2] ; Meirelles, Antonio J. A. ^[1]

Affiliation

^[1] Univ Estadual Campinas, Dept Food Engn DEA FEA, EXTRAE, BR-13083862 Campinas, SP - Brazil

^[2] Univ Sao Paulo, Dept Food Engn ZEA FZEA, Separat Engn Lab, LES, BR-13635900 Pirassununga, SP - Brazil

• Document type: Journal article
• Source: Journal of Food Engineering; v. 95, n. 2, p. 291-297, NOV 2009.
• Web of Science Citations: 20

Abstract

This work presents liquid-liquid experimental data for systems composed of sunflower seed oil, ethanol and water from 10 to 60 degrees C. The influence of process variables (temperature (T) and water concentration in the solvent (W)) on both the solvent content present in the raffinate (S(RP)) and extract (S(EP)) phases and the partition of free fatty acids (k(2)) was evaluated using the response surface methodology, where flash calculations were performed for each trial using the UNIQUAC equation. Water content in the solvent was the most important factor on the responses of S(EP) and k(2). Additionally, statistical analysis showed that the S(RP) was predominantly affected by temperature factor for low water content in the solvent. (c) 2009 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 05/53095-2 - Phase equilibrium and separation processes of fatty and aqueous food solutions
• Grantee: Antonio José de Almeida Meirelles
• Support type: Research Projects - Thematic Grants
• FAPESP's process: 06/00565-4 - Alcoholic extraction of vegetable oils: study of the solid-liquid equilibrium and the stage of the recovery of the solvent
• Grantee: Christianne Elisabete da Costa Rodrigues
• Support type: Regular Research Grants
• FAPESP's process: 07/06170-4 - Solubility of rice bran oil minor compounds in organic solvents: Experimental data and modeling
• Grantee: Maitê Sarria Cuevas
• Support type: Scholarships in Brazil - Master