Table 4.
Microbiological quality of lettuce collected from 12 different markets of Dhaka city.
| Market type | Location | Average microbiological population (log CFU/g) |
||||
|---|---|---|---|---|---|---|
| Aerobic bacterial count | Total coliform count | E. coli | Salmonella spp. | Staphylococcus spp. | ||
| Sophisticated shops (2) | Gulshan-1 Shopno | 5.39 ± 0.09 | 3.36 ± 0.28 | 2.78 ± 0.18 | 2.34 | 4.30 ± 0.00 |
| Mena Bazar Bansree | 4.84 ± 0.03 | 4.43 ± 0.07 | 2.75 ± 0.21 | <1.0 | 3.50 ± 0.04 | |
| Wholesale market (4) | Mirpur-1 | 5.39 ± 0.05 | 3.57 ± 0.09 | 2.41 ± 0.09 | <1.0 | 2.45 ± 0.21 |
| Kawran Bazar | 5.09 ± 0.13 | 4.05 ± 0.21 | <1.0 | <1.0 | <1.0 | |
| Jatrabari bazar | 7.04 ± 0.09 | 6.87 ± 0.17 | 3.42 ± 0.42 | 2.52 ± 0.52 | 4.80 ± 0.10 | |
| Syambazar | 6.95 ± 0.31 | 6.76 ± 0.00 | 3.31 ± 0.08 | 3.08 ± 0.38 | 4.47 ± 0.06 | |
| Retails market (6) | Uttora (Sector-3) | 5.50 ± 0.74 | 4.78 ± 0.02 | 1.69 ± 0.12 | <1.0 | 2.69 ± 0.12 |
| Tejgaon Colony Bazar | 5.43 ± 0.05 | 3.84 ± 0.08 | <1.0 | <1.0 | 3.14 ± 0.08 | |
| Khilkhet | 5.28 ± 0.18 | 3.75 ± 0.04 | <1.0 | <1.0 | 2.30 ± 0.0 | |
| Mohakhali | 5.95 ± 0.04 | 5.96 ± 0.01 | 2.78 ± 0.18 | <1.0 | 4.52 ± 0.00 | |
| Bashundhara R/A | 5.72 ± 0.05 | 5.30 ± 0.09 | 3.75 ± 0.21 | <1.0 | 3.45 ± 0.17 | |
| New market | 5.236 ± 0.00 | 4.848 ± 0.04 | <1.0 | <1.0 | 3.25 ± 0.0 | |
*The average values of three individual trial ± SD; <1.0 = Not detected.