Lignocellulosemust thus be pretreated before it can be converted to bioethanol.
Lignocellulose can either be pretreated by acid or base, depending
on what sugars are wanted. The acid pretreatment will make hemicellulose
soluble, and thus make cellulose more accessible to the enzyme.
The soluble hemicellulose is then subjected to hydrolysis in an
acidic environment to produce monomers, furfural, and some other
components