Abstract: The aim of this study is to investigate the physicochemical and disintegrant properties of α – cellulose obtained from sugarcane scrapings and bagasse. The mechanical and release properties of paracetamol tablets containing the extracted celluloses and two standard disintegrants- corn starch B.P and microcrystalline cellulose – were determined using crushing strength, friability, disintegration time, the time taken for 50% (T50) and 90% (T90) drug dissolution as assessment parameter. α – cellulose obtained from sugarcane scrapings and bagasse possess better flow properties than cornstarch and microcrystalline cellulose and are capable of absorbing up to five times their own weight in water and swell considerably. α – cellulose obtained from sugarcane scrapings and bagasse have high moisture sorption capacity and they formed relatively softer tablets which became increasingly harder as their concentration increased. All the tablets formulated with cellulose derived from sugarcane scrapings and bagasse passed the official disintegration test for uncoated tablets. Cellulose obtained from sugarcane bagasse had superior disintegrant property to cornstarch and microcrystalline cellulose while cellulose obtained from sugarcane scrapings showed comparable disintegrant property to microcrystalline cellulose. Tablets containing 2.5% w/w cellulose derived from sugarcane scrapings and 5.0% w/w cellulose derived from sugarcane bagasse gave more optimum result as tablet disintegrant. Formulations containing cellulose derived from sugarcane scrapings and bagasse show faster drug release (lower T50 and T90) than tablets containing corn starch and microcrystalline cellulose. There was a linear correlation between T90 and disintegration time (r = 0.976, p< 0.05) for tablets formulated with cellulose derived from sugarcane scrapings. Results show that α – cellulose obtained from sugarcane bagasse and scrapings are potentially useful as disintegrants in tablet formulations.
Keywords: α-cellulose, sugarcane bagasse and scraping, physicochemical properties, disintegrant, release properties.