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Artículo

Separation of Acylglycerides Obtained by Enzymatic Esterification Using Solvent Extraction

Sanchez, Daniel AlbertoIcon ; Tonetto, Gabriela MartaIcon ; Ferreira, Maria LujanIcon
Fecha de publicación: 02/2014
Editorial: Springer
Revista: Journal of the American Oil Chemists' Society
ISSN: 1558-9331
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Ingeniería de Procesos Químicos

Resumen

New avenues to add value to glycerol are currently being explored. One of them is the synthesis of structured lipids through glycerol esterification. In this work we have analyzed the recovery and purification of dicaprin obtained by esterification of glycerol with capric acid (C) in heptane, mediated by Lipozyme RM IM. This is an intermediate step to obtain lipids MLM. In the first stage, the diglyceride synthesis MGM (being G a central HC–OH) was carried out. When M = C, the diglyceride is CGC. Recovery of the diglyceride CGC is required to carry out the esterification of the sn-2 position with palmitic acid (P), thus obtaining the triglyceride CPC. Different solvents were evaluated using Ecofac 1.0 (a molecular design software solvent) through a theoretical approach to explore the best solvents for the acylglycerides separation. Then, the performance of the selected solvents to separate dicaprin from mono and tricaprin was experimentally studied in a liquid–liquid extraction process. Previously, the remaining fatty acid had been neutralized. With liquid–liquid extraction in three simple steps, using ethanol/water, 94 % of the dicaprin obtained by enzymatic esterification was recovered with a purity of 89 % (wt%). It was also possible to obtain dicaprin with a purity of 97 % but with a yield of 56 %.
Palabras clave: Separation , Fatty Acids , Acylglycerides , Extraction Liquidliquid
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/15318
URL: http://link.springer.com/article/10.1007/s11746-013-2374-1
DOI: http://dx.doi.org/10.1007/s11746-013-2374-1
Colecciones
Articulos(PLAPIQUI)
Articulos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Citación
Sanchez, Daniel Alberto; Tonetto, Gabriela Marta; Ferreira, Maria Lujan; Separation of Acylglycerides Obtained by Enzymatic Esterification Using Solvent Extraction; Springer; Journal of the American Oil Chemists' Society; 91; 2; 2-2014; 261-270
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