.4. Release kinetics of thymol from PBS films
The fractional release (MF,t/MP,0) versus time curves in Fig. 4 was obtained by fitting Equation (2) to the experimental data. It shows the migration of thymol from PBS films with various incubation times and food simulants i.e. distilled water, acetic acid, isooctane, ethanol 10% and ethanol 95%.