Chitosan with sandalwood (Santalum album) essential oil (SEO) using malic acid as solvent were evaluated an active packaging film. It was applied sachet to butter packaging. The effects of SEO concentration (0.5 %, 1 % and 2 v/v) on chitosan film properties studied by measuring the equilibrium moisture content, solubility, water vapor permeability (WVP), mechanical, optical, heat sealability, a...
