沙门氏菌属和其他一些肠道菌的检查方法,近年来,国外有些新进展,有关基础理论,也有新发现。因此对沙门氏菌属等的检查,提高了阳性检出率。特别是前增菌检查法,在国外广泛应用,效果很好,本文就其原理,发展简况和几种常用的方法综述如下。一、原理在冷冻食品、干燥食品、各种湿型食品及环境污水中污染的沙门氏菌和结肠炎耶尔森氏菌等,在食品加工过程中,使细菌处于冬眠状态和发生不同程度的损伤,或污水中污染极少量的沙门氏菌时,按常规检查法,直接用SF等增菌液选择性增菌,往往不易检 Salmonella and other intestinal bacteria in recent years, some new developments in foreign countries, the basic theory, but also new discoveries. Therefore, Salmonella and other tests to improve the positive detection rate. In particular, the pre-enrichment test method, widely used in foreign countries, the effect is very good, this paper on its principles, development profiles and several commonly used methods are summarized below. First, the principle Frozen food, dry food, all kinds of wet food and environmental pollution in the sewage Salmonella and Yersinia colitis, etc., in the food processing, the bacteria in a hibernation state and the occurrence of varying degrees of damage, Or sewage pollution of a very small amount of Salmonella, according to the conventional test method, directly with SF and other enrichment broth by bacteria, often difficult to seized