Department of Pharmaceutical Technology and Industrial Pharmacy, University of Ngeria, Nsukka, Enugu State, Nigeria; Department of Pharmaceutical Technology and Raw Materials Development, National Institute for Pharmaceutical Research and Development, Abu
Emeje, M.O., Department of Pharmaceutical Technology and Industrial Pharmacy, University of Ngeria, Nsukka, Enugu State, Nigeria, Department of Molecular Biology and Biotechnology, Tezpur University, Assam, India; Franklin-Ude, P.I., Department of Pharmaceutical Technology and Raw Materials Development, National Institute for Pharmaceutical Research and Development, Abuja, Nigeria; Ofoefule, S.I., Department of Pharmaceutical Technology and Raw Materials Development, National Institute for Pharmaceutical Research and Development, Abuja, Nigeria
In this study, the fluid uptake (swelling) kinetics and disintegrant properties of gellan gum in metronidazole tablets were evaluated in both simulated gastric and intestinal fluids (SGF and SIF respectively) without enzymes. The mechanical properties as well as the disintegration and dissolution profile of the tablets were also assessed and compared with those of two standard disintegrants: maize starch and sodium starch glycolate (Primogel®). Results show that, swelling was faster and higher in SIF than SGF with the minimum and maximum swelling rates of the gum being 0.365 and 6.900mm3/min respectively in SGF, while the corresponding values in SIF were 0.277 and 7.600mm3/min respectively. The gum was most effective as a disintegrant for metronidazole tablets at an optimum concentration of 0.2% (w/w) when incorporated extra-granularly. © 2010 Elsevier B.V.
gellan; metronidazole; starch; starch glycolate sodium; bacterial polysaccharide; delayed release formulation; drug carrier; gellan; metronidazole; tablet; article; concentration (parameters); controlled drug release; controlled study; drug solubility; intestine fluid; particle size; stomach juice; tablet compression; tablet disintegration; tablet friability; biomimetics; chemistry; delayed release formulation; intestine; kinetics; metabolism; tablet; Biomimetics; Delayed-Action Preparations; Drug Carriers; Gastric Juice; Intestines; Kinetics; Metronidazole; Polysaccharides, Bacterial; Tablets; Zea mays; Biomimetics; Delayed-Action Preparations; Drug Carriers; Gastric Juice; Intestines; Kinetics; Metronidazole; Polysaccharides, Bacterial; Tablets