Chitosan film was prepared by dissolving 1% (w/v) in 1M acetic acid. After filtration, the chitosan solution was cast onto a plastic plate, dried at 40°C and neutralized by soaking in 0.1 M NaOH for 30 min at ambient temperature. The membrane was then, subsequently washed thoroughly with distilled water and dried at 40°C for further examination of its quality.