Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effects of different alcoholic extraction conditions on soybean oil yield, fatty acid composition and protein solubility of defatted meal

Full text
Sawada, Mirian Megumi [1] ; Venancio, Larissa Lopes [1] ; Toda, Tatiane Akemi [1] ; Rodrigues, Christianne E. C. [1]
Total Authors: 4
[1] Univ Sao Paulo, Dept Food Engn, LES, BR-13635900 Pirassununga, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Food Research International; v. 62, p. 662-670, AUG 2014.
Web of Science Citations: 29

The aim of this work was to evaluate the feasibility of replacing hexane with ethanol in the soybean oil extraction process. The use of ethanol has very attractive advantages, including a low toxicity, good operational security, as well as being obtained from a biorenewable source. Thus, in this study solid-liquid extractions were performed under equilibrium conditions in which the variables evaluated were temperature (ranging from 40 to 90 degrees C) and solvent hydration (0 to 12 mass % of water). Results showed that an increase in water content of the solvent strongly suppressed the extraction of oil, whereas an increase in temperature increased the extraction of oil. For proteins, the opposite behavior was observed, where an increase in the water content of the solvent increased the extraction of such compounds, and an increase in temperature decreased the protein content in the extracted phase. The evaluation of the chemical profile and fatty acid composition of the oils obtained via ethanol showed that they had a composition typical of soybean oil, regardless of the extraction condition. The quality of the protein fraction from the oil extraction was evaluated by nitrogen solubility and thermal analysis. The evaluation indicated that the protein fraction is strongly influenced by the presence of water in the solvent and by temperature. These results indicate that it is technically feasible to use ethanol in the soybean oil extraction process; however, the hydration conditions of the solvent and the process temperature must be controlled due to their influences on the protein fraction characteristics of the defatted meal. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 08/56258-8 - Phase equilibrium and purification processes in the production of biofuels and biocompounds
Grantee:Antonio José de Almeida Meirelles
Support type: Program for Research on Bioenergy (BIOEN) - Thematic Grants
FAPESP's process: 09/17855-3 - Solid-liquid equilibrium, kinetic of minor compounds extraction, and design of extractors in the vegetable oils extraction with ethanol
Grantee:Christianne Elisabete da Costa Rodrigues
Support type: Regular Research Grants
FAPESP's process: 10/03058-1 - Study of Technical Feasibility of Replacement of hexane by ethanol in Soybean Oil Extraction Process: Kinetics of Extraction and Indexes of Quality
Grantee:Mirian Megumi Sawada
Support type: Scholarships in Brazil - Master
Grantee:Tatiane Akemi Toda
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 11/14246-6 - Evaluation of protein fraction solubility in soybean submitted at alcoholic extraction process under different conditions of temperature and ethanol hydration
Grantee:Larissa Lopes Venâncio
Support type: Scholarships in Brazil - Scientific Initiation