Research article: Occurrence of Campylobacter in Commercially Broken Liquid Egg in Japan

Journal of Food Protection, Volume 73, 2010, 412-417

05 March 2010

Samples of unpasteurized liquid egg (whole egg, egg yolk, and egg white) and pasteurized liquid whole egg were collected from egg-breaking facilities in Japan and were tested for the presence of Campylobacter. Campylobacter was isolated from 27.9% of unpasteurized liquid whole egg samples and 36.0% of unpasteurized liquid egg yolk samples. No Campylobacter was isolated from unpasteurized liquid egg white or pasteurized liquid whole egg samples. The contamination levels of Campylobacter ranged from <3 to 240/100 ml. It was shown that freezing and thawing reduced Campylobacter counts. The most predominant antibiotic resistance profile was similar to that of isolates from chicken. The very weak heat tolerance of Campylobacter indicated that it could be eliminated at the current legal pasteurization condition. There is no safety concern for commercially broken pasteurized liquid egg pertaining to Campylobacter contamination.