بررسي آلودگي ميكروبي در 50 نمونه يخ قالبي جمع آوري شده از نقاط مختلف شهر تهران طي سال 1378

A SURVEY ON MICROBIAL CONTAMINATION ON FIFTY ICE SAMPLES FROM DIFFERENT AREAS OF TEHRAN IN 1999

The purpose of this study was to investigate the extend of bacterial contaminating of ice blocks being used on daily basis in the community. In this study fifty samples of ice blocks from April to September 1999 were collected from different areas in the city of ʹTehran. Experiments were carrid out for the determination of total count of bacteria and the identification of pathogenic organisms. The results indicated that from the total of 50 samples, 34(68%) were contaminated. The isolated pathogenic bacteria were 5 cases L.coli (l0%), 21 cases pseudomonas aeroginosa (42%) and 5 cases staphylococcus aureus (10%). Other opportunistic bacteria present in the environment such as alkaligenes (%6), Acinetobactervt, (°7,4}, Diphtheroids w, (%46), Micrococcusspp (%16). Bascillus,t,E, (%20) and coagulase negative staphylococcus(%40) were isolated from all the 50 samples. These results suggest that necessary precautions should be taken in production, transportation and distribution of the ice blocks to reduce the rate of bacterial contaminations.