Reactivity of glucan and xylan in brewer’s spent grain: Comparing of dilute alkaline versus liquid hot water pretreatment
- Godin, B. , Henry, G. , Masy, T. , Nicolay, T. , Wobiwo, F. , Gerin, P. & Delcarte, J. (2020). Reactivity of glucan and xylan in brewer’s spent grain: Comparing of dilute alkaline versus liquid hot water pretreatment. Poster in: 25th National Symposium for Applied Biological Sciences, Gembloux, Belgium, 31 January 2020.
| Type | Poster |
| Year | 2020 |
| Title | Reactivity of glucan and xylan in brewer’s spent grain: Comparing of dilute alkaline versus liquid hot water pretreatment |
| Event name | 25th National Symposium for Applied Biological Sciences |
| Event location | Gembloux, Belgium |
| Event date | 31 January 2020 |
| Abstract | To be able to produce biofuels from cellulosic biomass in an economically efficient way, it is essential to make it less recalcitrant to enzymatic hydrolysis. This can be achieved by pretreating the biomass to get its glucan (cellulose) and xylan (hemicelluloses) more reactive. A laboratory-scale pressure reactor (Parr 4540) has been used to increase the reactivity of glucan and xylan in brewer’s spent grain (4% of dry solid loading) after dilute alkaline (120 minutes 80°C using KOH 0.1M) or liquid hot water pretreatment (20 minutes at 140°C or 220°C). The glucan, xylan and Klason lignin of the solid and liquid fractions of these assays were determined by the standard NREL (or equivalent) procedures. The corresponding gain in biodigestibility were assessed by the biomethane potential of the pretreated biomass. These experiments showed that dilute alkaline pretreatment at low severity enables an interesting reactivity of brewers’s spent grain in comparison to liquid hot water pretreatment which is a pretreatment with a higher severity. |
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| Authors | Godin, B., Henry, G., Masy, T., Nicolay, T., Wobiwo, F., Gerin, P., Delcarte, J. |
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