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Artículo

Recovery of acid corn oil from the bioalcohol industry by molecular distillation

Miró Erdmann, Silvia Marcela; Magallanes, Leisa MariaIcon ; Tarditto, Lorena VivianaIcon ; Prizzon, Antonella; Pramparo, Maria del Carmen; Gayol, Maria FernandaIcon
Fecha de publicación: 07/2019
Editorial: John Wiley & Sons Ltd
Revista: Journal of the Science of Food and Agriculture
ISSN: 0022-5142
e-ISSN: 1097-0010
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Ingeniería de Procesos Químicos

Resumen

The objective of this work was to reduce the acidity of acid corn oil for its subsequent use as edible oil. Also, its composition in tocopherols was determined. This oil is obtained as a by-product of corn alcohol production on an industrial scale and is currently used as a raw material in the biodiesel industry. The composition in tocopherols and fatty acids of acid corn oil was determined by gas chromatography and experiments of molecular distillation were carried out at different temperatures between 110 °C and 190 °C with a Volumetric flow rate of 0.5 to 2 mL min-1 and a pressure of 5.10-5 atm. It was possible to reduce its acidity from 9.44% up to values less than 0.3% in the residue, with distillation temperatures higher than 180 °C; also, in the distillate the tocopherols were recovered, with concentrations up to 13360 ppm.CONCLUSION: It was possible to decrease the acidity and purify tocopherols from acid corn oil by molecular distillation, obtaining a residue with an acidity acceptable for human consumption and a distillate with a high tocopherols content. Therefore, using molecular distillation, added value was given to a by-product of the bioalcohol industry.
Palabras clave: ACID CORN OIL , MOLECULAR DISTILLATION , TOCOPHEROLS , FREE FATTY ACIDS
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info:eu-repo/semantics/restrictedAccess 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/11336/112513
URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/jsfa.9684
DOI: https://doi.org/10.1002/jsfa.9684
Colecciones
Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Citación
Miró Erdmann, Silvia Marcela; Magallanes, Leisa Maria; Tarditto, Lorena Viviana; Prizzon, Antonella; Pramparo, Maria del Carmen; et al.; Recovery of acid corn oil from the bioalcohol industry by molecular distillation; John Wiley & Sons Ltd; Journal of the Science of Food and Agriculture; 99; 9; 7-2019; 4468-4473
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