Many scientists and technicians are currently researching the cellulose industry field so as to adapt the well-known paper production process to the above-mentioned sustainable economy concept. To this end, not only is the improvement of the processes involved in pulp and paper industry through biotechnology being undertaken, but also their modification in order to integrate the pulp mill into a biorefinery. Thus, the need for the use of each one of the wood cell wall components is imperative and, under this concept, it can be achieved.