Research of preservation effect of plant essential oils and chitosan compound egg film coating antistaling agent

A new, safe preservative coating eggs preparation was discussed, and its preservation effect was researched. Plant essential oil and chitosan was selected as coating antistaling agent of antibacterial substances,with salmonella antimicrobial rate as the index,to determine the best combination of composite antibacterial substance concentration for:eucalyptus oil 0.8mg/m L,forsythia oil 1.1mg/m L,chitosan 15mg/m L. While identifying with 0.20% gelatin as a film-forming agent. By measuring the coating treatment group and the control group which did not film at high temperature eggs(37℃) under the conditions of changes during storage,such as the change of weight loss,Haugh unit,albumen index,yolk index,pH,free fatty acids and total number of colonies.The results showed that after coating preservative treated eggs during storage was not much better than the quality of the coating eggs. Stored at 37℃,after handling eggs preservative coating to extend shelf life of at least 1 week.