Evaluation of Ionic Liquids as In Situ Extraction Agents during the Alcoholic Fermentation of Carob Pod Extracts
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AuthorSánchez Segado, Sergio; Salar García, María José; Ortiz Martínez, Víctor Manuel; Pérez de los Ríos, Antonia; Hernández Fernández, Francisco José; [et al.]
Knowledge AreaTecnología de los Alimentos
SponsorsThis research was funded by the Fundación Séneca, grant number 20957/PI/18 and The Ministry of Economy and Competitiveness (MINECO) grant number RTI2018-099011-B-I00.
Realizado en/conUniversidad Politécnica de Cartagena; Universidad de Murcia
Bibliographic CitationSanchez-Segado S, Salar-García MJ, Ortiz-Martínez VM, de los Ríos AP, Hernández-Fernández FJ, Lozano-Blanco LJ. Evaluation of Ionic Liquids as In Situ Extraction Agents during the Alcoholic Fermentation of Carob Pod Extracts. Fermentation. 2019; 5(4):90. https://doi.org/10.3390/fermentation5040090
Anhydrous ethanol is a promising alternative to gasoline in fuel engines. However, since ethanol forms an azeotrope with water, high-energy-consumption separation techniques such as azeotropic distillation, extractive distillation, and molecular sieves are needed to produce anhydrous ethanol. This work discusses the potential development of an integrated process for bioethanol production using ionic liquids and Ceratonia siliqua as a carbohydrate source for further fermentation of the aqueous extracts. A four-stage counter-current system was designed to improve the sugar extraction yield to values close to 99%. The alcoholic fermentation of the extracts showed ethanol concentrations of 95 g/L using the microorganism Saccharomyces cerevisae. The production of anhydrous ethanol through extractive distillation with ethylene glycol was simulated using CHEMCAD software, with an energy consumption of 13.23 MJ/Kg of anhydrous ethanol. Finally, several ionic liquids were analyzed and are proposed ...
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