Abstract
The study was conducted to determine the effect of storage of table eggs at room temperature (25 ±1˚C) on viability of some pathogenic bacteria. A total of 200 eggs were collected randomly from various shops in Lahore (Pakistan) and divided into two groups equally. One was stored at room temperature for ten days while other was processed on the same day. Enumeration and prevalence of bacteria in terms of colony forming units (CFUs) was worked out following serial dilutions. Mean of bacterial count was obtained as 298 × 104 CFUs/ml of original suspension at zero time on day 1, which diminished to 116 × 104 CFUs/ml at day 10. Most of the samples (91%) were densely populated with Shigella (139 CFUs × 104 /ml of original suspension), and least (61%) with Klebsiella (43 CFUs × 104ml of original suspension), sandwiching (76%) with E.coli (98 CFUs × 104/ml of original suspension). Number of samples scoring each category of the bacterial contamination as well as the CFUs levels dropped significantly (P
Sara Asghar, Shagufta Andleeb, Javed Iqbal Qazi , Kausar Malik. (2012) Effect of storage at room temperature on prevalence of some pathogenic bacteria over egg shells , Punjab University Journal of Zoology, Volume 27, Issue 2.
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