title: Development of a yeast strain for xylitol production without hydrolysate detoxification as part of the integration of co-product generation within the lignocellulosic ethanol process.
abstract: The present study verified an applicable technology of xylitol bioconversion as part of the integration of co-product generation within second-generation bioethanol processes. A newly isolated yeast strain, Candida tropicalis JH030, was shown to have a capacity for xylitol production from hemicellulosic hydrolysate without detoxification. The yeast gives a promising xylitol yield of 0.71 g(p) g(s)(-1) from non-detoxified rice straw hydrolysate that had been prepared by the dilute acid pretreatment under severe conditions. The yeast's capacity was also found to be practicable with various other raw materials, such as sugarcane bagasse, silvergrass, napiergrass and pineapple peel. The lack of a need to hydrolysate detoxification enhances the potential of this newly isolated yeast for xylitol production and this, in turn, has the capacity to improve economics of lignocellulosic ethanol production.
authors.affiliation: Cellulosic Ethanol Project, Institute of Nuclear Energy Research, Taoyuan County, Taiwan, ROC.
authors.forename: Chiung-Fang
authors.initials: CF
authors.lastname: Huang
authors.forename: Yi-Feng
authors.initials: YF
authors.lastname: Jiang
authors.forename: Gia-Luen
authors.initials: GL
authors.lastname: Guo
authors.forename: Wen-Song
authors.initials: WS
authors.lastname: Hwang
mesh_terms: D041022:Candida tropicalis / Q000145:classification* / Q000378:metabolism*; D000431:Ethanol / Q000378:metabolism*; D006868:Hydrolysis; D008031:Lignin / Q000378:metabolism*; D012275:Oryza / Q000382:microbiology*; D013045:Species Specificity; D014993:Xylitol / Q000096:biosynthesis*
chemical_list: C036909:lignocellulose; D000431:Ethanol; D008031:Lignin; D014993:Xylitol