Abstract
This study aimed to investigate the bacterial contamination of flake and cube ice being used dailyin the community. Thirty-one ice samples were collected from different areas in the city of Can Tho city, Vietnam. The enumeration of total aerobic mesophilic counts, the presence of coliforms and Escherichia coli (E. coli) and determination of antibiotics resistance of E. coli isolates were examined. The results indicated that total aerobic mesophilic counts ranged from 2.5 to 6.2 log CFU/mL and significant differences of total aerobic mesophilic counts were found between flake ice and cube ice (p < 0.05). Coliforms and E. coli were present on the ice samples of 93.55% and 58.06%, respectively. A total of 39 E. coli isolates were tested their resistance to 15 different antibiotics. The E. coli isolates of 74.36% were multi-resistance from three to thirteen antibiotics. The high prevalance was resistant to Ampicillin (79.49%), Cefotaxime (69.23%), Ceftazidime (46.15%), Tetracycline (56.41%), Sulfamethoxazole/Trimethoprime (46.15%), Colistin (20.51%), etc. As E. coli is an hygiene indicator and a candidate vehicle for the transfer of antibiotic resistance gene, it is highly recommended using clean and probable water in ice making as well as preventing the spread of antibiotic resistant bacteria.
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