10.5071/21STEUBCE2013-3DO.8.3
Steffien, D.
D.
Steffien
Bertau, M.
M.
Bertau
Kinetic Studies of Enzymatic Lignocellulose Hydrolysis
ETA-Florence Renewable Energies
2013
Conference paper
Biomass
2013
en
978-88-89407-53-0
2282-5819
4 Pages
application/pdf
Proceedings of the 21st European Biomass Conference and Exhibition, 3-7 June 2013, pp. 1378-1381
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.
Proceedings of the 21st European Biomass Conference and Exhibition, 3-7 June 2013, Copenhagen, Denmark, pp. 1378-1381