M.A. Thesis:

Production of polymer polyethylene (PE) containers by CITIN and CHITOSAN technologies whith food packaging anti bacterial and anti Fvngas properties

Films based on chitosan much attention in packaging technology and food preservation a priority, and this is due to their antimicrobial activity against pathogens and spoilage microorganisms, including fungi and gram-positive bacteria and is negative. In this study, physical properties, mechanical, antimicrobial and film microstructure containing concentrations of 0/5-1-1/5% of chitosan on three types of bacteria Listeria monocytogenes, Staphylococcus aureus, Salmonella was evaluated. Chitosan film containing higher concentrations, greater deterrence areas compared to other videos showed. Chitosan particles in Dmay200-190Drjh ° C was added to the polymer HDPE and LDPE polymer leaving the final period lasted 10 minutes and then the die orifice was produced chitosan impregnated polymer devices and then test a variety of microbial and stretch to study the structure and properties Created occurred. Different concentrations of chitosan in the film formed, significantly (P <0.05) against Gram-positive and Gram-negative bacteria were more effective. With increasing concentrations of chitosan, the deterrent effect of significantly (P <0.05) increased. According to data from the charts best to destroy pathogens and minimize the maximum tensile strength polymer is chitosan concentration of 1 percent.

Keywords: Polymer antibacterial and antifungas + chitosan