Figure 1

Structural overview of a cellulose chain (A) and a simplistic sketch of a Iβ cellulose microfibril (B). Note the simplicity and homogeneity of the cellulose chain. Parallell cellulose chains aggregate into crystalline structures called microfibrils. The arrows indicate the two hydrophobic faces [26] of the microfibril which are thought to be attacking points for cellulases [27].