Sugar Solution from Lignocellulosic Materials

There are several possible ways to hydrolyze lignocellulose (see Fig. 3.5). The most commonly applied methods can be classified into two groups: chemical hydrolysis and enzymatic hydrolysis. In addition, there are

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Figure 3.5 Overall view of ethanol production from lignocellulosic materials.

some other hydrolysis methods in which no chemicals or enzymes are applied. For instance, lignocellulose may be hydrolyzed by y-ray or electron-beam irradiation, or microwave irradiation. However, those processes are commercially unimportant [15].