title: Extraction of inulinase obtained by solid state fermentation of sugarcane bagasse by Kluyveromyces marxianus NRRL Y-7571.
abstract: Production of inulinase by solid state fermentation always involves an extraction step, which dictates enzyme recovery yield and is related to cultivation conditions and control of process parameters. This work is focused on the study of extraction conditions aiming to maximize yield of an inulinase obtained by solid state fermentation of sugar cane bagasse and Kluyveromyces marxianus NRRL Y-7571. Kinetics of extraction was followed varying the kind of solvent used. After determining the best solvent, an experimental design was carried out to study the effect of the solid/liquid ratio (1:10-1:20), extraction temperature (20-53 degrees C), and stirring rate (50-177 rpm). Results showed that maximum yield was obtained when sodium acetate buffer 0.1 M pH 4.8 was used, using a solid/liquid ratio of 1:10, at 53 degrees C and 150 rpm for 40 min.
authors.affiliation: Departamento de Engenharia de Alimentos, Universidade Regional Integrada do Alto Uruguai e das Missões Campus de Erechim, Av. Sete de Setembro 1621, Erechim 99700-000, Brazil.
authors.forename: João Paulo
authors.initials: JP
authors.lastname: Bender
authors.forename: Marcio Antônio
authors.initials: MA
authors.lastname: Mazutti
authors.forename: Marco
authors.initials: M
authors.lastname: Di Luccio
authors.forename: Helen
authors.initials: H
authors.lastname: Treichel
mesh_terms: D005285:Fermentation; D006026:Glycoside Hydrolases / Q000302:isolation & purification*; D007700:Kinetics; D007716:Kluyveromyces / Q000378:metabolism*; D009994:Osmolar Concentration; D031786:Saccharum / Q000378:metabolism*
chemical_list: D006026:Glycoside Hydrolases; C023086:inulinase