Gökgöz, MuratYiğitoğlu, Mustafa2020-06-252020-06-252013closedAccess2169-14012169-141Xhttps://doi.org/10.3109/10731199.2012.696069https://hdl.handle.net/20.500.12587/5549Crosslinked graft copolymers of CMC with N-vinyl-2-pyrrolidone (N-VP) were prepared in different grafting yields. Saccharomyces bayanus was immobilized in the graft copolymers of carboxymethylcellulose-g-poly(N-vinyl-2-pyrrolidone) (CMC-g-PVP) for ethanol fermentation. The effects of grafting yield, initial glucose concentration, and crosslinker concentration on the yield of ethanol process was investigated. Ethanol production increased when percentage of N-vinyl-2-pyrrolidone in the graft copolymer was increased. The maximum concentration, productivity, and yield of ethanol were 98.78 g L-1, 8.23 g L-1 h(-1) and 0.494 g g(-1), respectively. Reusability of the immobilized yeasts was found that the materials can be used seven times without losing their activity.eninfo:eu-repo/semantics/closedAccessSaccharomyces bayanusfermentationbioethanolimmobilizationcarboxymethylcelluloseN-vinyl-2-pyrrolidoneArticle41213714310.3109/10731199.2012.6960692-s2.0-8487956254122947119Q1WOS:000320994900011Q4