Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 419540
Title Effect of pretreatment severity on the conversion of barley straw to fermentable substrates and the release of inhibitory compounds
Author(s) Panagiotopoulos, I.; Bakker, R.R.; Vrije, G.J. de; Koukios, E.G.
Source Bioresource Technology 102 (2011)24. - ISSN 0960-8524 - p. 11204 - 11211.
Department(s) FBR BP Biorefinery & Natural Fibre Technology
FBR Bioconversion
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) dilute-acid pretreatment - ethanol-production - saccharomyces-cerevisiae - hydrogen-production - wheat-straw - caldicellulosiruptor-saccharolyticus - enzymatic saccharification - extreme thermophile - corn stover - acetic-acid
Abstract The production of fermentable substrates from barley straw under various process conditions was studied. Pretreatment included chemical pretreatment with dilute-acid followed by enzymatic hydrolysis; the pretreatment conditions were expressed in a combined severity factor, CS, which ranged in the present study from -1.6 to 1.1. Considering the production of fermentable sugars and the release of inhibitory compounds, the optimal pretreatment conditions were 170 °C, 0% sulfuric acid and 60 min, corresponding to CS -0.4. Under these conditions, 21.4 g glucose/L, 8.5 g xylose/L, and 0.5 g arabinose/L were produced, while 0.1 g HMF/L, 0.4 g furfural/L, 0.0 g levulinic acid/L, 0.0 g formic acid/L, and 2.1 g acetic acid/L were released. The ratio of Ssugars/Sinhibitors proved to be a good tool for evaluating the suitability of a hydrolysate for fermentation purposes.
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