title: Production of xylitol and tetrahydrofurfuryl alcohol from xylan in napier grass by a hydrothermal process with phosphorus oxoacids followed by aqueous phase hydrogenation.
abstract: The production of xylitol and tetrahydrofurfuryl alcohol (THFA) from napier grass was studied using two steps: a hydrothermal process with phosphorus oxoacids followed by aqueous phase hydrogenation with Pd/C. Xylose obtained from the napier grass by the hydrothermal treatment with 3.0 wt% phosphorous acid was subsequently converted into xylitol at 51.6% yield of the xylan in napier grass by hydrogenation with 5.0 wt% Pd/C. The furfural produced from napier grass with a 3.0 wt% phosphoric acid treatment was also directly subjected to the hydrogenation as a hydrolysate to yield 41.4% THFA based on the xylan in napier grass. The yields of xylitol and THFA obtained by hydrogenation using the napier grass hydrolysate containing xylose or furfural were almost the same as those of hydrogenation using commercial materials. To our knowledge, this is the first report on the production of THFA in high yield by hydrogenation directly from biomass hydrolysate.
authors: Department of Agro-environmental Sciences, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan; Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan.
authors: Eri
authors: E
authors: Takata
authors: Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan.
authors: Tatsushi
authors: T
authors: Tsuruoka
authors: Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan.
authors: Ken
authors: K
authors: Tsutsumi
authors: Department of Agro-environmental Sciences, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan. Electronic address: y-tsutsu@agr.kyushu-u.ac.jp.
authors: Yuji
authors: Y
authors: Tsutsumi
authors: Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan.
authors: Kenji
authors: K
authors: Tabata
mesh_terms: D001709:Biotechnology / Q000379:methods*; D002244:Carbon / Q000494:pharmacology; D002384:Catalysis / Q000187:drug effects; D005663:Furans / Q000378:metabolism*; D006865:Hydrogenation / Q000187:drug effects; D006868:Hydrolysis / Q000187:drug effects; D010165:Palladium / Q000494:pharmacology; D031782:Pennisetum / Q000187:drug effects / Q000378:metabolism*; D010757:Phosphorous Acids / Q000378:metabolism*; D013696:Temperature; D014867:Water / Q000494:pharmacology*; D014990:Xylans / Q000378:metabolism*; D014993:Xylitol / Q000096:biosynthesis*; D014994:Xylose / Q000096:biosynthesis
chemical_list: D005663:Furans; D010757:Phosphorous Acids; D014990:Xylans; D014867:Water; D010165:Palladium; D002244:Carbon; D014994:Xylose; D014993:Xylitol; C018675:tetrahydrofurfuryl alcohol
keywords: Acid hydrothermal process; Biorefinery; Hydrogenation; Tetrahydrofurfuryl alcohol (THFA); Xylitol