Processing of lignocellulosics to ethanol consists of four major
unit operations: pretreatment, hydrolyzes, fermentation, and product
separation/purification.Pretreatment is required to alter the
biomass macroscobic and microscobic size and structure [5]. Ethanol
production from hazelnut husk seems possible through the
methods of ‘‘Enzymatic hydrolysis of lignocellulosic waste’’ [8].
Hydrolysis includes the processing steps that convert the carbonhydrate
polymers into monomeric sugars [5]. This process is a
microbial degradation of lignocellulosic waste and the downstream
products resulting from it is accomplished by a concerted
action of several enzymes, the most prominent of which are the
cellulases. For microorganisms to hydrolyze and metabolize, insoluble
cellulose, extracellular cellulases must be produced which are
either free or cell associated. Three major types of cellulase activities
are recognized [8]. Enzimatic hydrolyzes of cellulose provides
opportunities to improve the technology so that biomass ethanol is
competitive when compared to other liquid fuels on a large scale