University of Oulu

Laura Schneider, Jasmiina Haverinen, Mari Jaakkola, Ulla Lassi, Effective saccharification of lignocellulosic barley straw by mechanocatalytical pretreatment using potassium pyrosulfate as a catalyst, Bioresource Technology, Volume 234, June 2017, Pages 1-7, ISSN 0960-8524, http://dx.doi.org/10.1016/j.biortech.2017.03.020. (http://www.sciencedirect.com/science/article/pii/S0960852417302900) Keywords: Barley straw (Hordeum vulgare); Lignocellulose; Potassium pyrosulfate; Mechanocatalytical conversion; Ball milling

Effective saccharification of lignocellulosic barley straw by mechanocatalytical pretreatment using potassium pyrosulfate as a catalyst

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Author: Schneider, Laura1,2; Haverinen, Jasmiina3; Jaakkola, Mari3;
Organizations: 1University of Oulu, Research Unit of Sustainable Chemistry, P.O. Box 3000, FIN-90014 Oulu, Finland
2University of Jyvaskyla, Kokkola University Consortium Chydenius, FI-67100 Kokkola, Finland
3University of Oulu, Kajaani University Consortium, CEMIS-Oulu, FI-87400 Kajaani, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe201704055962
Language: English
Published: Elsevier, 2017
Publish Date: 2019-03-07
Description:

Abstract

The catalytic conversion of lignocellulosic biomass is attractive due to the feasible generation of valuable products such as reducing sugars which constitute the basic substrates for chemical and transportation fuel production, as well as the production of renewable hydrogen. This study shows the efficient conversion of lignocellulose, especially hemicellulose, into reducing sugars such as xylose and galactose, by mechanocatalysis using potassium pyrosulfate, K₂S₂O₇, as an effective salt catalyst. Ball milling was performed, introducing a mechanical force which, combined with chemical pretreatment, leads to reducing sugar yields (40%) almost as high as when commonly used sulfuric acid was employed. Kinetic experiments as well as the optimization of the saccharification process are presented.

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Series: Bioresource technology
ISSN: 0960-8524
ISSN-E: 1873-2976
ISSN-L: 0960-8524
Volume: 234
Pages: 1 - 7
DOI: 10.1016/j.biortech.2017.03.020
OADOI: https://oadoi.org/10.1016/j.biortech.2017.03.020
Type of Publication: A1 Journal article – refereed
Field of Science: 116 Chemical sciences
Subjects:
Funding: This work was financially supported by the Fortum Foundation, Helsinki, Finland (project number 201500046).
Copyright information: © 2017 Elsevier Ltd. All rights reserved . Published in this repository with the kind permission of the publisher.