Laura Schneider, Jasmiina Haverinen, Mari Jaakkola, Ulla Lassi, Pretreatment and fractionation of lignocellulosic barley straw by mechanocatalysis, Chemical Engineering Journal, Volume 327, 2017, Pages 898-905, ISSN 1385-8947, http://dx.doi.org/10.1016/j.cej.2017.06.175
Pretreatment and fractionation of lignocellulosic barley straw by mechanocatalysis
|Author:||Schneider, Laura1,2; Haverinen, Jasmiina3; Jaakkola, Mari3;|
1University of Oulu, Research Unit of Sustainable Chemistry, P.O. Box 3000, FIN-90014 Oulu, Finland
2University of Jyvaskyla, Kokkola University Consortium Chydenius, Talonpojankatu 2B, 67100 Kokkola, Finland
3University of Oulu, Kajaani University Consortium, Unit of Measurement Technology, FI–87400 Kajaani, Finland
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe201708108052
|Publish Date:|| 2019-11-01
This study focuses on the mechanocatalytical process combining dilute acid pretreatment and mechanical processing driven by ball milling. Milled and hydrolyzed barley straw samples are subject to reducing sugar analysis by DNS assay and capillary electrophoresis. Optimization of the saccharification conditions was carried out with two different sulfuric acid concentrations, 0.5 mol kg⁻¹ and 1.0 mol kg⁻¹, and compared. A significant yield of total reducing sugar (53.4%) was obtained from barley straw impregnated with sulfuric acid (1.0 mol kg⁻¹) after milling for only 20 min. Glucose and xylose concentrations accounted for 3.5% and 11.3%, respectively. Strikingly, the present study indicates a significant impact of the internal milling vessel temperature in the mechanocatalytical conversion process of barley straw in addition to the mechanical parameters and the catalyst concentration.
Chemical engineering journal
|Pages:||898 - 905|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
116 Chemical sciences
This work was financially supported by the Fortum Foundation, Helsinki, Finland [grant number 201400052].
© 2017 Elsevier B.V. All rights reserved.