Özet:

In this study, chitosan based films were produced and the most suitable formula in terms of surface properties was determined. The characterization of the film layer was evaluated by scanning electron microscopy, Fourier transform infrared spectroscopy, x-ray diffraction analyses. Different concentrations of tea tree and/or lemon balm essential oil were added to this formula and their antimicrobial activities were compared. When the films were evaluated in terms of microstructure, they formed a homogeneous and flexible surface structure. Antimicrobial activities of films were tested on Listeria monocytogenes ATCC 19115, Staphylococcus aureus ATCC 25923, Klebsiella pneumoniae NRRLB 4420, Enterococcus faecalis ATCC 51289, Escherichia coli ATCC 35218, Bacillus subtilis NRS 744, Staphylococcus aureus ATCC 6538, Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, Staphylococcus aureus ATCC 12600, Pseudomonas aeruginosa ATCC 11778 and Candida albicans ATCC 10231. The tested film structures showed an antimicrobial effect on the pathogenic microorganisms. It has been determined that essential oils increase the antimicrobial activity.

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