Title:
Impact of Phosphorus-containing Catalysed Pretreatment on the Enzymatic Hydrolysis of Cellulose
Author(s):
Brazdausks, P., Godina, D., Puke, M., Linina, P.L.
Document(s):
Paper
Poster
Abstract:
The rising demand for bioresources more and more suggests looking for more efficient ways to use them in existing bio-based product production systems. This study is related to the selective separation and conversion of aspen wood C5 carbohydrates into furfural during the H3PO4-NaH2PO4 catalyzed pretreatment stage simultaneously preserving cellulose in the lignocellulosic leftover for glucose production by the enzymatic hydrolysis. Results show that more than 70% of available C5 carbohydrates were converted into furfural, but the cellulose losses during the pretreatment stage did not reach more than 5% of the initial amount. Based on the chemical component analysis of aspen wood lignocellulosic leftover it was concluded that it is possible to reduce cellulose degradation by the addition of NaH2PO4 to the catalyst mixture. This also improved the enzymatic hydrolysis process's effectiveness. The highest cellulose conversion rate into glucose (41.7%, calculated on the theoretically possible yield) was reached after 72 h treatment using Cellic® CTec3 HS enzyme cocktail.
Keywords:
enzymatic hydrolysis, pretreatment, hydrolysis, lignocellulosic sources, biobased products
Topic:
Biomass Conversion to Bio-Based Products and Chemicals
Subtopic:
Co-production of biofuels and biochemicals
Event:
31st European Biomass Conference and Exhibition
Session:
6CV.9.11
Pages:
1125 - 1129
ISBN:
978-88-89407-23-3
Paper DOI:
10.5071/31stEUBCE2023-6CV.9.11
Price:
FREE
