Preliminary xylitol separation tests were carried out using both xylitol-xylose synthetic solutions and fermented hardwood hemicellulose hydrolyzate. Xylitol was recovered by a crystallization methodology consisting of dilute solutions evaporation up to supersaturation, supersaturated solutions cooling, separation of crystals by centrifugation, and final filtration. Besides, xy litol solubility limits were estimated at different crystallization temperatures. Product yields and crystal purity were calculated and crystallization kinetics were investigated.
Lambri, M., De Faveri, D. M., Converti, A., Perego, P., Del Borghi, M., Xylitol recovery from synthetic solutions and fermented hemicellulose hydrolyzates, in Proceedings of 15th International Symposium on Industrial CrystallizationVolume 1 di Chemical Engineering Transactions, (Sorrento, 2002-09-15), Angelo Chianese (AIDIC), Milano 2002: 1311-1316. [10.1016/S1385-8947(02)00134-1] [http://hdl.handle.net/10807/18870]
Xylitol recovery from synthetic solutions and fermented hemicellulose hydrolyzates
Lambri, Milena;De Faveri, Dante Marco;
2002
Abstract
Preliminary xylitol separation tests were carried out using both xylitol-xylose synthetic solutions and fermented hardwood hemicellulose hydrolyzate. Xylitol was recovered by a crystallization methodology consisting of dilute solutions evaporation up to supersaturation, supersaturated solutions cooling, separation of crystals by centrifugation, and final filtration. Besides, xy litol solubility limits were estimated at different crystallization temperatures. Product yields and crystal purity were calculated and crystallization kinetics were investigated.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
