Hledat publikace
Effect of Maize Starch Excipient Properties on Drug Release Rate
Procedia Engineering; Vol 42; 2012; Pages 482-488
- Druh výsledku: Článek v odborném periodiku (Article in a professional journal)
- Autor: Majerová D., Petrů Jiří, Zámostný Petr
- ISSN: 1877-7058
- Vydáno/uděleno: 2012
- Link: URL
- DOI: 10.1016/j.proeng.2012.07.439
Popis
The aim of the work was to determine the influence of pregelatinized maize starch properties on the dissolution rate of caffeine. The intrinsic dissolution rate apparatus was used to investigate the process of drug dissolution. Dissolution profiles of caffeine mixed with 5 different maize starch samples, using caffeine: starch ratio (4:1), were measured. The dissolution profiles of all caffeine-starch mixtures are presented, as well as the results of the mathematical model, consisting of the equations for caffeine concentration change and for the starch layer change in time. The values of 3 parameters of the dissolution model were estimated using non-linear regression analysis. Caffeine effective diffusivity in swollen starch layer was found to be strongly related to the starch swelling capacity.