Title:
Evaluation of Lignocellulosic Biomasses Available in Uruguay for Glucose Production by Enzymatic Cellulose Hydrolysis
Author(s):
Fernández, M., Cagno, M., Guchin, N., Bonfiglio, F.
Document(s):
Paper
Poster
Abstract:
Lignocellulosic biomass can be converted into sugars for sustainable production of biofuels and chemicals. Prior to enzymatic hydrolysis of cellulose, a pretreatment must be applied to increase its digestibility. The objective was to evaluate different biomasses from Uruguay, analyzing their potential to be processed in a biorefinery based on a glucose platform obtained through enzymatic hydrolysis of cellulose. The chemical characterization of Arundo donax L., sugarcane bagasse, and Eucalyptus grandis was conducted. Steam explosion pretreatment (Advance Bio Systems, S1401-D2011) was used, evaluating different conditions (temperature, time, acid impregnation). Solids were enzymatically hydrolyzed (CellicCtec2) at concentrations of ˜ 15 % w/w. At 72 hours, the glucose concentration ranged between 62.0 and 81.8 g/L, and the efficiency ranged between 53.7 and 83.5 %. The glucose overall yield was 384 ± 167 kg/ton, 253 ± 95 kg/ton, and 225 ± 31 kg/ton, for A. donax, bagasse, and E. grandis, respectively. A. donax achieved the highest glucose yield per ton of raw material. Steam explosion was an appropriate pretreatment for obtaining glucose from all materials studied. For valorization at an industrial scale, it will be necessary to evaluate other technical and economic aspects.
Keywords:
biorefinery, cellulose, enzymatic hydrolysis, steam explosion, lignocellulosic sources
Topic:
Sustainable Resources for Decarbonising the Economy
Subtopic:
Biomass resources and potentials
Event:
32nd European Biomass Conference and Exhibition
Session:
1CV.2.22
Pages:
106 - 108
ISBN:
978-88-89407-24-0
Paper DOI:
10.5071/32ndEUBCE2024-1CV.2.22
Price:
FREE
