Thermodynamic and statistical analysis of soybean oil extraction process using renewable solvent
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
19/10/2012
19/10/2012
2010
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Resumo |
The main goal of this work was to evaluate thermodynamic parameters of the soybean oil extraction process using ethanol as solvent. The experimental treatments were as follows: aqueous solvents with water contents varying from 0 to 13% (mass basis) and extraction temperature varying from 50 to 100 degrees C. The distribution coefficients of oil at equilibrium have been used to calculate enthalpy, entropy and free energy changes. The results indicate that oil extraction process with ethanol is feasible and spontaneous, mainly under higher temperature. Also, the influence of water level in the solvent and temperature were analysed using the response surface methodology (RSM). It can be noted that the extraction yield was highly affected by both independent variables. A joint analysis of thermodynamic and RSM indicates the optimal level of solvent hydration and temperature to perform the extraction process. FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)[08/56258-8] FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)[09/17855-3] CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico) |
Identificador |
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, v.45, n.11, p.2407-2414, 2010 0950-5423 http://producao.usp.br/handle/BDPI/26883 10.1111/j.1365-2621.2010.02417.x |
Idioma(s) |
eng |
Publicador |
WILEY-BLACKWELL PUBLISHING, INC |
Relação |
International Journal of Food Science and Technology |
Direitos |
restrictedAccess Copyright WILEY-BLACKWELL PUBLISHING, INC |
Palavras-Chave | #Enthalpy change #entropy change #ethanol #free energy change #response surface methodology #solid-liquid equilibrium #solvent extraction #RICE BRAN OIL #ALTERNATIVE SOLVENTS #ETHANOL #HEXANE #KINETICS #SYSTEM #Food Science & Technology |
Tipo |
article original article publishedVersion |