Weagant S D, Kaysner C A
Appl Environ Microbiol. 1983 Feb;45(2):468-71. doi: 10.1128/aem.45.2.468-471.1983.
Sorbitol-bile salts broth was modified by the addition of 0.5% peptone for the enrichment of Yersinia enterocolitica in nonfood samples. A quantitative comparison was made of the growth of Y. enterocolitica in sorbitol-bile salts broth and peptone-sorbitol-bile salts broth at 22 degrees C. Incubation for 48 h resulted in an average 7.79 log10 increase in a viable cell number for six serotypes with peptone-sorbitol-bile salts broth compared with an average 1.85 log10 increase for sorbitol-bile salts broth. Recovery from seeded seawater showed a greater than 100-fold increase in sensitivity with peptone-sorbitol-bile salts broth enrichment. Isolation of indigenous Y. enterocolitica from fresh and marine waters was also significantly enhanced.
通过添加0.5%蛋白胨对山梨醇-胆盐肉汤进行改良,用于在非食品样本中富集小肠结肠炎耶尔森菌。对小肠结肠炎耶尔森菌在山梨醇-胆盐肉汤和蛋白胨-山梨醇-胆盐肉汤中于22℃下的生长情况进行了定量比较。培养48小时后,与山梨醇-胆盐肉汤中活菌数平均增加1.85个对数单位相比,蛋白胨-山梨醇-胆盐肉汤中6个血清型的活菌数平均增加7.79个对数单位。从接种的海水中回收显示,使用蛋白胨-山梨醇-胆盐肉汤富集时灵敏度提高了100倍以上。从淡水和海水中分离本土小肠结肠炎耶尔森菌的能力也显著增强。