Title:
Kinetic Studies of Enzymatic Lignocellulose Hydrolysis
Author(s):
Steffien, D., Bertau, M.
Document(s):
Paper
Slide presentation
Abstract:
The investigated Penicillium verruculosum cellulase complex exhibits significant advantages in comparison to the worldwide used Trichoderma reesei cellulase complex. This is demonstrated for example in a higher resistance towards ethanol and in increased ß-glucosidase content. Hence it could be established that there is no accumulation of cellobiose. Thus there is no product inhibition of the enzyme complex observable. Furthermore different chemical pre-treatment methods were tested for their suitability for bioethanol production. Pre-treatment of wheat straw with performic acid was compared with treatment with sodium hydroxide. As a result of both methods lignin content decreased and hydrolysis yield increased up to factor of ten. Kinetic studies of this pre-treated feedstock shows a much higher initial rate of alkaline pre-treated straw than the acid pre-treated straw. Investigations on the adsorption behaviour of cellulases onto different lignocellulosic materials show that lignin exerts undesired effects on enzymatic lignocellulose treatment.
Keywords:
bioethanol, enzymatic hydrolysis, lignocellulose, pretreatment, wheat straw
Topic:
R&D on Processes for Solid, Liquid and Gaseous Fuels from Biomass
Subtopic:
Bioethanol production and sugar release from lignocellulosic biomass
Event:
21st European Biomass Conference and Exhibition
Session:
3DO.8.3
Pages:
1378 - 1381
ISBN:
978-88-89407-53-0
Paper DOI:
10.5071/21stEUBCE2013-3DO.8.3
Price:
FREE
