Abstract
Fifty milk samples were assessed for prevalence and enumeration of coliform bacteria under refrigeration. Refrigeration exerted profound effect conferring diminished growth of Citrobacter, Enterobacter and Serratia, however, itfavoured Salmonella, E.coli and Klebsiella on other hand. Among them, Salmonella appeared with highest load both in pre-refrigerated (23%) as well as post-refrigerated (46.3%) samples. A blend of responses toward erythromycin and polymyxin B was observed by various coliform isolates, however,polymyxin B was found more effective comparatively. Predominantly, these isolates exhibited Gamma (γ) hemolysis, while only Serratia and Klebsiella arose as possible pathogenic being β-hemolytic

ShaguftaAndleeb, Alveena Khalid , Urooj Fatima . (2014) Effect of refrigeration on prevalence and enumeration of psychrotrophic bacteria in raw milk , Punjab University Journal of Zoology, Volume 29, Issue 1.
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