AbstractThis research investigated the potential of biopolymer-additive films for food
preservation. Three biopolymers, namely chitosan (CS), gelatin (GL) and methylcellulose (MC) were
used in this research. Ascorbic acid (AA), tannic acid (TA), banana leaf essential oil (BA), clove
essential oil (CL), turmeric extract (TU) and chamomile extract (CH) were used as natural additive.
This research is divided into five main studies, namely synthesis, characterisation, antimicrobial
activity, food preservation and biodegradation. The main scientific instruments used in this study
were Fourier transform infrared (FTIR) spectrometer, scanning electron microscope (SEM), universal
testing machine, water vapour permeability (WVP) analyser, oxygen permeability (OP) analyser,
ultraviolet-visible (UV-Vis) spectrophotometer and thermogravimetric analyser (TGA). The bacteria
used for antimicrobial activity were Staphylococcus aureus (Gram-positive) and Escherichia c.....