Response surface methodology applied to the analysis of rice bran oil extraction process with ethanol
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
19/10/2012
19/10/2012
2010
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Resumo |
P>Vegetable oils can be extracted using ethanol as solvent. The main goal of this work was to evaluate the ethanol performance on the extraction process of rice bran oil. The influence of process variables, solvent hydration and temperature was evaluated using the response surface methodology, aiming to maximise the soluble substances and gamma-oryzanol transfer and minimise the free fatty acids extraction and the liquid content in the underflow solid. It can be noted that oil solubility in ethanol was highly affected by the water content. The free fatty acids extraction is improved by increasing the moisture content in the solvent. Regarding the gamma-oryzanol, it can be observed that its extraction is affected by temperature when low level of water is added to ethanol. On the other hand, the influence of temperature is minimised with high levels of water in the ethanol. FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)[2005/53095-2] FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)[2006/00565-4] FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)[2006/04819-0] FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)[2008/56258-8] FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)[2009/17855-3] CNPq (Conselho Nacional de Desenvolvimento Cientifico e Technologico) |
Identificador |
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, v.45, n.4, p.813-820, 2010 0950-5423 http://producao.usp.br/handle/BDPI/26820 10.1111/j.1365-2621.2010.02202.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 | #Ethanol #free fatty acids #gamma-oryzanol #retention index #solid-liquid equilibrium #solubility #DEACIDIFICATION PROCESS #SOLVENT-EXTRACTION #ORYZANOL #ALCOHOL #HEXANE #SYSTEM #TEMPERATURE #ISOPROPANOL #EQUILIBRIA #COTTONSEED #Food Science & Technology |
Tipo |
article original article publishedVersion |