Efficacy of Acetic Acid against Listeria monocytogenes Attached to Poultry Skin during Refrigerated Storage
Abstract
:1. Introduction
2. Experimental Section
2.1. Preparation of Bacterial Inoculum
2.2. Inoculation of Poultry and Treatment
2.3. Sensorial Analysis
2.4. Microbiological Analyses and pH Determination
2.5. Statistical Analysis
3. Results and Discussion
3.1. Microbiological Quality
Batch | Days of Storage | ||||
---|---|---|---|---|---|
0 | 1 | 3 | 6 | 8 | |
Control | 5.57 ± 0.13 a | 7.13 ± 0.04 a | 7.69 ± 0.44 a | 9.83 ± 0.03 a | 10.31 ± 0.01 a |
1% Acetic acid | 4.68 ± 0.01 b | 4.68 ± 0.06 b | 6.29 ± 0.03 b | 7.93 ± 0.03 b | 8.84 ± 0.03 b |
2% Acetic acid | 4.47 ± 0.01 b | 4.47 ± 0.02 b | 5.87 ± 0.02 b | 7.49 ± 0.01 c | 8.31 ± 0.01 c |
Batch | Days of Storage | ||||
---|---|---|---|---|---|
0 | 1 | 3 | 6 | 8 | |
Control | 5.17 ± 0.03 a | 5.62 ± 0.01 a | 6.88 ± 0.01 a | 9.02 ± 0.03 a | 9.57 ± 0.01 a |
1% Acetic acid | 4.87 ± 0.01 b | 4.91 ± 0.01 b | 5.72 ± 0.03 b | 6.77 ± 0.03 b | 8.12 ± 0.04 b |
2% Acetic acid | 4.68 ± 0.02 c | 4.69 ± 0.03 b | 5.63 ± 0.01 b | 6.59 ± 0.01 c | 7.89 ± 0.01 c |
Batch | Days of Storage | ||||
---|---|---|---|---|---|
0 | 1 | 3 | 6 | 8 | |
Control | 3.04 ± 0.04 a | 4.21 ± 0.06 a | 5.09 ± 0.01 a | 5.70 ± 0.07 a | 6.54 ± 0.08 a |
1% Acetic acid | 2.13 ± 0.01 b | 2.64 ± 0.01 b | 3.95 ± 0.01 b | 4.55 ± 0.01 b | 5.51 ± 0.04 b |
2% Acetic acid | 1.63 ± 0.04 c | 2.60 ± 0.01 b | 3.84 ± 0.11 b | 4.34 ± 0.07 b | 5.04 ± 0.03 c |
3.2. pH Evolution
3.3. Listeria monocytogenes
Batch | Days of Storage | ||||
---|---|---|---|---|---|
0 | 1 | 3 | 6 | 8 | |
Control | 4.90 ± 0.20 a | 5.53 ± 0.03 a | 7.38 ± 0.03 a | 7.74 ± 0.01 a | 8.77 ± 0.01 a |
1% Acetic acid | 4.53 ± 0.01 ab | 4.38 ± 0.04 b | 6.25 ± 0.01 b | 7.18 ± 0.06 b | 7.88 ± 0.03 b |
2% Acetic acid | 4.25 ± 0.07 b | 4.28 ± 0.01 b | 5.72 ± 0.06 c | 6.60 ± 0.01 c | 7.46 ± 0.01 c |
3.4. Sensorial Quality
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Gonzalez-Fandos, E.; Herrera, B. Efficacy of Acetic Acid against Listeria monocytogenes Attached to Poultry Skin during Refrigerated Storage. Foods 2014, 3, 527-540. https://doi.org/10.3390/foods3030527
Gonzalez-Fandos E, Herrera B. Efficacy of Acetic Acid against Listeria monocytogenes Attached to Poultry Skin during Refrigerated Storage. Foods. 2014; 3(3):527-540. https://doi.org/10.3390/foods3030527
Chicago/Turabian StyleGonzalez-Fandos, Elena, and Barbara Herrera. 2014. "Efficacy of Acetic Acid against Listeria monocytogenes Attached to Poultry Skin during Refrigerated Storage" Foods 3, no. 3: 527-540. https://doi.org/10.3390/foods3030527