The richest source of cellulose is wood. Wood is composed of approximately 40-50% cellulose, making it the most abundant source of this important polysaccharide. Cellulose is also found in other plant materials such as cotton, flax, and hemp, but the concentration of cellulose in these materials is lower than in wood. Cellulose is also found in algae, fungi, and bacteria, but in much smaller amounts than in plants. Cellulose is a major component of the cell walls of plants and is an important structural component in many plants, providing strength and rigidity. It is also used as a source of energy for some organisms, including termites and other insects. Cellulose is also used in the production of paper, textiles, and other products.
Cotton linter is the short, fine fibers that are removed from the cotton seed during the ginning process. These fibers are used to make paper, cardboard, insulation, and other products. Cotton linter is also used to make cellulose, which is used in the production of plastics, adhesives, and other products.