Parsin, StanislavStanislavParsinKaltschmitt, MartinMartinKaltschmitt2023-12-112023-12-112024-02-01Bioresource Technology 393: 130071 (2024-02)https://hdl.handle.net/11420/44551Water-soluble xylans useable for many potential applications can be produced based on the hydrolysis of wheat straw within a fixed bed using saturated steam to provide a xylan-rich hydrolysate low in particles and lignin enabling an effective ultrafiltration and xylan separation. Under defined conditions (180 °C, 10 bar, 35 min), a degree of solubilization of 29.6 % for straw and of 63 % for hemicellulose is achieved. The dry mass of the resulting hydrolysate consists of at least 58 % xylose and arabinose. The xylose is mainly (87 %) present in non-monomeric form and appears to have a broad molecular weight distribution. Ultrafiltration with commercial membranes (4 to 50 kDa) is being investigated for the separation of the target fraction; here significant differences in the filtration behavior and rejections from 9 to 81 % for carbohydrates and from 13 to 48 % for phenolic compounds (lignin), respectively, are found.en0960-85242024Elsevierhttps://creativecommons.org/licenses/by/4.0/HemicelluloseSteamingUltrafiltrationWheat strawXylooligosaccharidesChemical EngineeringJournal Article10.15480/882.891110.1016/j.biortech.2023.13007110.15480/882.8911Journal Article