Patent ID: 7977473

Claim:
A tablet comprising a treated cellulose having the following properties: a. melting point by differential scanning calorimeter (DSC) of about 260° C.; b. bulk density of about 0.2 g/cm3 in freeze-dried powder form; c. bulk density of about 0.8 g/cm3 in air-dried and ground powder form; d. enzymatic hydrolysis profile using 1 filter paper unit (FPU) cellulase/1 cellobiase unit (CBU) β-glucosidase demonstrating at least about 30% hydrolysis at 15 FPU, at least about 20% hydrolysis at 7 FPU, and at least about 5% hydrolysis at 1 FPU; e. water absorption capacity of at least about 6 to about 8 times its weight in water; f. morphology without a rigid crystalline structure but rather a sponge-like structure; and g. X ray diffraction pattern having a lower peak at 2θ=22° and additional minor peaks at higher values of 2θ as compared to α-cellulose or microcrystalline cellulose.