Table 3. Analysis of microbial contamination when using cotton gloves (Unit: Log10 CFU/g)
Medium | Microbial strain | Pre-experiment | Right after | After 1 h | After 2 h | After 4 h | After 8 h | After 10 h |
Cotton gloves | Plate count bacteria | NDc | 2.15±0.15b | 2.93±0.15a | 3.39±0.49a | 3.16±0.56a | 3.10±0.40a | 3.09±0.62a |
Escherichia coli | ND | ND | ND | ND | ND | ND | ND |
Staphylococcus aureus | ND | ND | ND | ND | ND | ND | ND |
Salmonella spp. | ND | ND | ND | ND | ND | ND | ND |
Listeria monocytogenes | ND | ND | ND | ND | ND | ND | ND |
Cutting board | Plate count bacteria | NDb | 2.95±0.48a | 3.23±0.53a | 3.12±0.52a | 3.37±0.37a | 3.29±0.33a | 3.27±0.22a |
Escherichia coli | ND | ND | ND | ND | ND | ND | ND |
Staphylococcus aureus | ND | ND | ND | ND | ND | ND | ND |
Salmonella spp. | ND | ND | ND | ND | ND | ND | ND |
Listeria monocytogenes | ND | ND | ND | ND | ND | ND | ND |
Knife | Plate count bacteria | NDc | 2.07±0.07b | 2.71±0.71ab | 2.57±0.27ab | 2.91±0.61a | 3.10±0.40a | 2.94±0.46a |
Escherichia coli | ND | ND | ND | ND | ND | ND | ND |
Staphylococcus aureus | ND | ND | ND | ND | ND | ND | ND |
Salmonella spp. | ND | ND | ND | ND | ND | ND | ND |
Listeria monocytogenes | ND | ND | ND | ND | ND | ND | ND |
Meat | Plate count bacteria | 4.40±0.04c | 5.13±0.13b | 5.44±0.01a | 5.08±0.04b | 5.06±0.06b | 5.09±0.05b | 5.11±0.07b |
Escherichia coli | ND | ND | ND | ND | ND | ND | ND |
Staphylococcus aureus | ND | ND | ND | ND | ND | ND | ND |
Salmonella spp. | ND | ND | ND | ND | ND | ND | ND |
Listeria monocytogenes | ND | ND | ND | ND | ND | ND | ND |
All values are mean ± SD of three replicates.
For the same row, alphabets indicate significant difference (p < 0.05) (Duncan’s multiple t-test).
ND, not detected.