Hänninen M L
Acta Vet Scand. 1981;22(3-4):566-77. doi: 10.1186/BF03548680.
Survival of 5 strains of Campylobacter jejuni/coli in ground beef liver stored at 4° C and at –20° C was studied. After 6 days of storage at 4° C the beef liver was spoiled, which was indicated by APG log 7.25 and lactobacilli count log 7.0. During this storage Campylobacter counts decreased only slightly. After 12 weeks of storage at –20° C Campylobacter counts decreased by 2–3 logs in frozen ground beef liver. Survival of 4 strains of C. jejuni/coli on frozen broiler carcasses was also studied. Two inoculation levels, 10–10/g and 10–10/g were used. On frozen broiler carcasses Campylobacter counts decreased by 0.5–2.0 logs during 12 weeks at –20° C.
研究了5株空肠弯曲菌/结肠弯曲菌在4℃和-20℃储存的绞碎牛肝中的存活情况。在4℃储存6天后,牛肝变质,这由APG对数7.25和乳酸杆菌计数对数7.0表明。在该储存期间,弯曲菌计数仅略有下降。在-20℃储存12周后,冷冻绞碎牛肝中的弯曲菌计数下降了2-3个对数。还研究了4株空肠弯曲菌/结肠弯曲菌在冷冻肉鸡胴体上的存活情况。使用了两个接种水平,即10⁻¹⁰/g和10⁻¹⁰/g。在-20℃下12周期间,冷冻肉鸡胴体上的弯曲菌计数下降了0.5-2.0个对数。