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Título

Production of bioethanol from carrot discards

AutorAimaretti, N. R.; Ybalo, C. V.; Rojas-Cervantes, M. Luisa ; Plou Gasca, Francisco José ; Yori, Juan Carlos
Palabras claveCARROT
FERMENTATION
ETHANOL
ENZYMATIC HYDROLYSIS
BIOETHANOL
GLYCOSIDASES
Fecha de publicación2012
EditorElsevier
CitaciónBioresource Technology 123, 727-732 (2012)
ResumenA revalorization of discarded carrots as substrate for the production of second-generation ethanol is proposed. In order to increase the fermentable sugar concentration of the musts two strategies were studied: Strategy 1 consisted in the enzymatic hydrolysis of bagasse must and Strategy 2 by which carrots were milled, dropped into distilled water and hydrolyzed with different enzymes prior to compressing and filtering to obtain carrot must. By applying Strategy 2 using 0.05 % (v/v) of the enzyme Optimase CX255 at 70 °C and pH 5.5 during 2.5 h, the fermentable sugars extracted increased 3.5 times. In this way, the production of 77.5 L of ethanol for each ton of discarded carrots was achieved. This process yielded bagasse as byproduct, which could be used for animal feed.
Versión del editordoi:10.1016/j.biortech.2012.08.035
URIhttp://hdl.handle.net/10261/88825
DOI10.1016/j.biortech.2012.08.035
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