EXTENSION OF EXPIRATION DATE OF EGG USING CHITOSAN COATING AND GAMMA RAY IRRADIATION

摘要

As a result of inoculating E. coli to an egg on which both chitosan coating and gamma ray irradiation are performed, a decrease is made to a level equal to or less than a detection limitation by 2kGy radiation. Detection is not made after 3 days of chitosan coating. A general component such as water, crude protein, and crude ash do not show a difference in both egg white and egg yolk, and there is not a difference in treatment with respect to the content of retinol, phosphatide, and small quantity of elements. The contents of cholesterol and carotinoid of the egg yolk decrease by radiation irrespective of chitosan coating. Accordingly, by performing both chitosan coating (1%) and gamma ray irradiation (2kGy), microbiological safety of an egg can be ensured. A nutritional component change is not affected much, and thus hygiene and storage extension of an egg can be expected.;COPYRIGHT KIPO 2017