title: The promotion of molasse alcoholic fermentation using Saccharomyces cerevisiae in the presence of gamma-alumina.
abstract: Using gamma-alumina pellets, more than threefold increase of the ethanol productivity in the fermentation molasse has been obtained in the present work. Also, molasse fermentation in the presence of gamma-alumina gave 78.4 g/L ethanol, ethanol yield factor 0.44 g/g, and conversion 89.4% at initial sugar concentration (ISC) 179.5 g/L, compared to 53.9 g/L, 0.30 g/g and 62.7% in its absence, respectively. Furthermore, it was found that gamma-alumina reduces the activation energy Ea of fermentation. This inorganic material does not promote the fermentation of raisin extract.
authors.affiliation: Department of Chemistry, University of Patras, Greece.
authors.forename: L
authors.initials: L
authors.lastname: Iconomou
authors.forename: C
authors.initials: C
authors.lastname: Psarianos
authors.forename: M
authors.initials: M
authors.lastname: Kanellaki
authors.forename: A
authors.initials: A
authors.lastname: Kalliafas
authors.forename: K
authors.initials: K
authors.lastname: Kana
authors.forename: A A
authors.initials: AA
authors.lastname: Koutinas
mesh_terms: D000537:Aluminum Oxide / Q000494:pharmacology; D000431:Ethanol / Q000378:metabolism*; D005285:Fermentation; D005632:Fructose / Q000378:metabolism; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008965:Molasses; D012441:Saccharomyces cerevisiae / Q000378:metabolism*; D013395:Sucrose / Q000378:metabolism; D013696:Temperature
chemical_list: D005632:Fructose; D000431:Ethanol; D013395:Sucrose; D000537:Aluminum Oxide