Table 5 Distribution of TPC, TC and total yeasts and moulds according to coverage and gloves usage of unpacked bread, Alexandria, 2021–2022
From: Microbiological quality of some packed and unpacked bread products in Alexandria, Egypt
Coverage (N = 84) | Glove Usage (N = 84) | |||||
|---|---|---|---|---|---|---|
Covered N = 61 | Uncovered N = 23 | p-value | Used N = 33 | Not N = 51 | p-value | |
Total plate count (CFU/g) | ||||||
Mean ± SD | 1.5 × 105 ± 2.5 × 105 | 2.3 × 105 ± 4.0 × 105 | p = 0.679 U = 742.0 | 1.8 × 105 ± 3.8 × 105 | 2.2 × 105 ± 4.2 × 105 | p = 0.576 U = 901.5 |
Median (IQR) | 6.8 × 102 (5.70 × 105) | 3.7 × 103 (5.69 × 105) | 5.50 × 102 (1.27 × 105) | 2.0 × 103 (5.70 × 105) | ||
Min–Max | 0.0–2.2 × 106 | 0.0–5.7 × 106 | 0.0–1.7 × 106 | 0.0–2.2 × 106 | ||
Total yeasts and moulds (CFU/g) | ||||||
Mean ± SD | 6.3 × 103 ± 2.7 × 104 | 6.5 × 103 ± 1.4 × 104 | p = 0.794 U = 725.5 | 3.43 × 103 ± 10.9 × 103 | 8.27 × 103 ± 3.0 × 104 | p = 0.558 U = 900.5 |
Median (IQR) | 0.0 (4.0 × 102) | 0.0 (8.0 × 103) | 0.0 (3.0 × 102) | 0.0 (5.0 × 102) | ||
Min–Max | 0.0–1.5 × 105 | 0.0–6.0 × 104 | 0.0–5.0 × 104 | 0.0–1.5 × 105 | ||
Total coliforms (MPN/g) | ||||||
Mean ± SD | 6.2 ± 16.1 | 99.1 ± 3.15 × 102 | p = 0.045* U = 809.0 | 3.0 ± 0.0 | 50.1 ± 2.14 × 102 | p = 0.011* U = 990.0 |
Median (IQR) | 3.0 (0.0) | 3.0 (0.0) | 0.3 (0.0) | 0.3 (0.0) | ||
Min–Max | 3.0–93.0 | 3.0–1.1 × 103 | 0.3 | 3.0–1.1 × 103 | ||