Abstract: Effects of chlorine dioxide treatment in disinfection,fresh-keeping and storage quality of shell eggs were investigated.After selecting and grading,shell eggs were soaked in the concentration of 30,40 and 50 mg/L of chlorine dioxide solution for 5,10 and 15 min,respectively,and some shell eggs soaked in the concentration of 50 mg/L of chlorine dioxide solution for 10 min were put into windtight bags.The control group was not treated with chlorine dioxide solution.All groups were stored at room temperature.The weight loss,yolk index,Haugh unit and total volatile basic nitrogen(TVBN) were tested on the 10th,20th,30th and 40th day,respectively.Results indicated that the disinfection effects of chlorine dioxide treatment on eggshell are very significant,but could not prevent quality of eggs descending.The egg storage in windtight bags after disinfection is favorable to fresh-keeping of shell eggs.

Key words: chlorine dioxide, egg, disinfection, fresh-keeping