Research Article
Ziziphora clinopodioides Essential Oil and Nisin as Potential Antimicrobial Agents against Escherichia coli O157:H7 in Doogh (Iranian Yoghurt Drink)
Table 3
Acceptability scores (odour and flavour) of Doogh samples for different treatments.
| Day | Control | Essential oil (%) | Nisin (IU/mL) | Essential oil (%) + nisin (IU/mL) | 0.1 | 0.2 | 250 | 500 | 0.1 + 250 | 0.1 + 500 | 0.2 + 250 | 0.2 + 500 |
| 0 | 10 ± 0.0a | 10 ± 0.0a | 9.5 ± 0.0a | 10 ± 0.0a | 10 ± 0.0a | 10 ± 0.0a | 10 ± 0.0a | 9.4 ± 0.0a | 9.5 ± 0.0a | 1 | 10 ± 0.0a | 10 ± 0.0a | 9.5 ± 0.0a | 10 ± 0.0a | 10 ± 0.0a | 10 ± 0.0a | 10 ± 0.0a | 9.5 ± 0.0a | 9.5 ± 0.0a | 3 | 7.0 ± 0.7b | 9.0 ± 0.2b | 8.6 ± 0.2b | 9.0 ± 0.0b | 9.0 ± 0.0b | 9.0 ± 0.1b | 9.2 ± 0.2b | 8.6 ± 0.1b | 8.5 ± 0.0b | 5 | 5.1 ± 0.1c | 8.1 ± 0.3c | 6.9 ± 0.3c | 8.1 ± 0.1c | 8.0 ± 0.2c | 8.0 ± 0.2c | 8.1 ± 0.1c | 6.9 ± 0.1c | 7.0 ± 0.2c | 7 | 4.5 ± 0.1c | 7.1 ± 0.0d | 6.7 ± 0.1c | 7.3 ± 0.1d | 7.1 ± 0.1d | 7.1 ± 0.3d | 7.2 ± 0.3d | 6.5 ± 0.2c | 6.5 ± 0.1d | 9 | 3.3 ± 0.1d | 6.9 ± 0.0 | 5.0 ± 0.1d | 6.9 ± 0.0d | 6.9 ± 0.0d | 6.7 ± 0.1d | 6.8 ± 0.3d | 5.1 ± 0.2d | 5.2 ± 0.0 |
|
|
Means with different lowercase letters in the same column are significantly different ().
|