Cellulose is a macromolecular polysaccharide composed of glucose. It is insoluble in water and general organic solvents. It is the main component of plant cell wall. Cellulose is the most widely distributed in nature, the largest content of a polysaccharide, accounting for more than 50% of the carbon content of the plant world. The cellulose content of cotton is close to 100%, the purest source of cellulose in nature. In general wood, cellulose accounts for 40 to 50%, and 10 to 30% of hemicellulose and 20 to 30% of lignin.
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