This study investigated properties of starch-based edible fi lms with oregano and black cumin essential oil addition. Essential oils addition positively affected fi lm swelling (decreased due to essential oil addition), mechanical properties (tensile strength decreased while elongation at break increased), and water vapor barrier properties (decreased along with essential oils addition). Control fi lm did not have any biological activity, which proves the need for essential oils addition in order to obtain active packaging. Oregano oil was more effective in terms of biological activity. Endothermal peak, above 200°C, represents total thermal degradation of edible fi lms. Diffraction pattern of control fi lm showed signifi cant destruction of A-type crystal structure. Addition of essential oils resulted in peak shape change: diffraction peaks became narrower. Principal Component Analysis has been used to assess the effect of essential oils addition on fi nal starch-based edible fi lms characteristics with the aim to reveal directions for the fi lm characteristics improvement, since the next phase will be optimal fi lm application for food packaging.

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