Experimental data and modeling of rice bran oil extraction kinetics using ethanol as solvent

Author(s)

Kamimura, Juliane A. A. M. ; Aracava, Keila K. ; Rodrigues, Christianne E. C.

• Document type: Journal article
• Source: SEPARATION SCIENCE AND TECHNOLOGY; v. 52, n. 12, p. 1921-1928, 2017.
• Web of Science Citations: 3

Abstract

The extraction kinetics of rice bran oil (RBO), free fatty acids (FFA), and oryzanol using ethanol (0 and 6.3 mass % of water) at 40 degrees C-70 degrees C were investigated. High extraction temperatures increased the yields of RBO and oryzanol by increasing the diffusivity of the solvent, regardless of its water content. Two models that permitted the estimation of mass transfer and diffusion coefficients were fitted to the oil extraction data with low average relative deviations (5.92%). The diffusion coefficient (1.93-7.46 x 10(-10) m(2).s(-1)) increased with increasing temperature and decreasing hydration of the solvent. (AU)

• FAPESP's process: 10/16166-7 - Extraction of Rice Bran Oil using ethanol as solvent: Study of the Kinetics of Minor Compounds Extraction
• Grantee: Juliane Akemi Araújo de Melo Kamimura
• Support type: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 14/09446-4 - Development of a process of vegetable oil extraction using alcoholic solvents: evaluation of oil composition and changes in the protein fraction
• Grantee: Christianne Elisabete da Costa Rodrigues
• Support type: Regular Research Grants
• FAPESP's process: 14/21252-0 - Equilibrium and production processes of biofuels and bioproducts
• Grantee: Antonio José de Almeida Meirelles
• Support type: Research Projects - Thematic Grants