Table 5 The effect of using a commercial scourer on the reduction of microbial load from the aluminium cans and plastic jerry can surfaces
Milk container type | Scourer | N | Type of microorganism (mean log10 cfu/cm2) | Initial microbial load | Final microbial load | Microbial load change | % Reduction in microbial load |
|---|---|---|---|---|---|---|---|
Aluminium | NO | 6 | TVC | 5.60 ± 1.16 | 0.58 ± 0.13 | 5.02 ± 1.12 | 89.6 |
TCC | 3.96 ± 1.14 | 0.63 ± 0.34 | 3.33 ± 0.99 | 84.1 | |||
LAB | 3.57 ± 0.78 | 0.18 ± 0.09 | 3.33 ± 0.82 | 93.3 | |||
YES | 6 | TVC | 6.15 ± 0.59 | 1.06 ± 0.33 | 5.10 ± 0.60 | 82.9 | |
TCC | 5.10 ± 0.97 | 0.78 ± 0.11 | 4.32 ± 0.86 | 84.7 | |||
LAB | 3.96 ± 0.70 | 0.08 ± 0.04 | 3.88 ± 0.67 | 98.0 | |||
Plastic | NO | 24 | TVC | 5.97 ± 1.11 | 3.67 ± 0.81 | 2.30 ± 0.61 | 38.5 |
TCC | 5.03 ± 0.99 | 3.37 ± 0.81 | 1.66 ± 0.73 | 33.0 | |||
LAB | 4.79 ± 0.85 | 2.63 ± 1.08 | 2.15 ± 0.98 | 44.9 | |||
YES | 24 | TVC | 6.02 ± 0.98 | 4.01 ± 1.01 | 2.01 ± 0.68 | 33.4 | |
TCC | 5.12 ± 0.86 | 3.92 ± 0.71 | 1.20 ± 0.55 | 23.4 | |||
LAB | 4.83 ± 0.79 | 2.86 ± 1.06 | 1.91 ± 0.75 | 39.5 |