title: Improvement in xylitol production from sugarcane bagasse hydrolysate achieved by the use of a repeated-batch immobilized cell system.
abstract: Candida guilliermondii cells were immobilized in Ca-alginate beads and used for xylitol production from concentrated sugarcane bagasse hydrolysate during five successive fermentation batches, each lasting 48 hours. The bioconversion efficiency of 53.2%, the productivity of 0.50 g/l x h and the final xylitol concentration of 23.8 g/l obtained in the first batch increased to 61.5%, 0.59 g/l x h and 28.4 g/l, respectively, in the other four batches (mean values), with variation coefficients of up to 2.3%.
authors.affiliation: Faculdade de Engenharia Química de Lorena, Departamento de Biotecnologia, SP, Brazil.
authors.forename: Walter
authors.initials: W
authors.lastname: Carvalho
authors.forename: Silvio S
authors.initials: SS
authors.lastname: Silva
authors.forename: Michele
authors.initials: M
authors.lastname: Vitolo
authors.forename: Maria G A
authors.initials: MG
authors.lastname: Felipe
authors.forename: Ismael M
authors.initials: IM
authors.lastname: Mancilha
mesh_terms: D001711:Biotransformation; D018914:Cells, Immobilized / Q000378:metabolism*; D002482:Cellulose / Q000378:metabolism*; D005285:Fermentation; D006868:Hydrolysis; D019684:Magnoliopsida / Q000166:cytology / Q000378:metabolism*; D014993:Xylitol / Q000096:biosynthesis*
chemical_list: D002482:Cellulose; C027433:bagasse; D014993:Xylitol