Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/347368
Type: Artigo
Title: Liquid−liquid equilibrium data for systems involving triacylglycerols from (soybean, cottonseed, or rice bran) oil + partial acylglycerols + anhydrous ethanol at T = 303.2 and 318.2 K
Author: Shiozawa, Simone
Ferreira, Marcela C.
Goncalves, Daniel
Meirelles, Antonio J. A.
Batista, Eduardo A. C.
Abstract: Considering vegetable oils as complex multicomponent mixtures composed of triacylglycerols (TAGs), diacylglycerols (DAGs), and monoacylglycerols (MAGs) in liquid–liquid extraction, as deacidification or another purification technique, it is crucial not only to describe the process, but also the oil enrichment in DAG content, or the obtainment of MAG-rich products, as emulsifiers. This study aimed to attain the liquid–liquid equilibrium (LLE) data of systems composed of TAG of refined oils (soybean, cottonseed, and rice bran) + DAG + MAG + ethanol at T = 303.2 and 318.2 K. The components presented in the liquid phases in equilibrium (TAG, DAG, MAG, and ethanol) were quantified by high-performance size-exclusion chromatography (HPSEC). The preference of DAG for the oil-rich phase and of MAG to the solvent-rich phase is consistent to data reported in the literature. The average deviation between experimental and calculated compositions was less than 0.57% using the NRTL model and up to 6.21% using the original version of the UNIFAC model with two parameters set
Subject: Equilíbrio líquido-líquido
Country: Estados Unidos
Editor: American Chemical Society
Rights: Fechado
Identifier DOI: 10.1021/acs.jced.8b01119
Address: https://pubs.acs.org/doi/10.1021/acs.jced.8b01119
Date Issue: 2019
Appears in Collections:FEA - Artigos e Outros Documentos

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