Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: February 9, 2007
Publication Date: April 29, 2007
Citation: Digman, M.F., Shinners, K.J., Dien, B.S., Muck, R.E., Weimer, P.J. 2007. On-farm pretreatment technologies for improving enzymatic digestibility of cellulose and hemicellulose present in perennial grass and corn stover [abstract]. Abstracts of the 29th Symposium on Biotechnology for Fuels and Chemicals, April 29-May 2, 2007, Denver, Colorado. p. 147. Technical Abstract: Recently, wet storage methods have been proposed for feedstock preservation and on-farm storage of perennial grass and corn stover biomass. The advantages over a dry storage system include lower risk of fire, reduced harvest costs, and improved feedstock susceptibility to enzymatic hydrolysis. We believe that wet storage systems may also present a unique opportunity to add value to the feedstock through chemical or biological pretreatment. In-storage pretreatments at ambient temperature and pressure but prolonged reaction times may lower pretreatment costs and provide better return for farmers. Our research investigates the ability of on-farm pretreatments with dilute acid, alkali, ozone or novel enzymes to improve enzymatic degradability of cellulose and hemicelluloses in biomass at the biorefinery.