KİTOSAN BAZLI ETİL PİRÜVAT FİLMLERİN FİZİKOKİMYASAL, ANTİOKSİDAN, ANTİMİKROBİYAL VE ANTİ-QUORUM SENSİNG ÖZELLİKLERİNİN BELİRLENMESİ.

The aim of this study is to develop an environmentally friendly packaging material by adding ethyl pyruvate (EP) to the chitosan film (CS) formulation in two different concentrations (1% and 3%). Thus, the moisture, water solubility, apparent density, color, biodegradability, and chemical resistance of the films were determined, and the surface morphology was characterized by SEM and functional groups were characterized by FTIR. Additionally, the antimicrobial and anti -qs activities of the films were determined by the disk diffusion method. The moisture, apparent density, biodegradability, and antioxidant activity of chitosan film were increased by adding EP. It was observed that EP caused porous structure in CS. Films showed antimicrobial effect against Escherichia coli O157:H7, Bacillus cereus, Staphylococcus aureus, Alternaria arborescens, Aspergillus flavus, Penicillium digitatum, Penicillium citrinum and Penicillum expansum. It was determined that all films showed anti-qs activity. Results showed that CS-EP1 film can be used as an alternative food packaging. [ABSTRACT FROM AUTHOR]