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- Title
The Effect of Nisin and Thyme Oil on Listeria monocytogenes and Staphylococcus aureus Inoculated into Cream During Storage.
- Authors
ÜSTÜNDAĞ, Hatice ÇAYIR; YALÇIN, Halil
- Abstract
The main objective of this study was to investigate the effect of nisin and thyme oil on Listeria monocytogenes and Staphylococcus aureus inoculated in cream. Milk skim was used in the study, a total of 12 groups including L. monocytogenes and S. aureus were inoculated and the study was divided into two work packages. In the first work package, L. monocytogenes were inoculated into each group. Subsequently, 5 mg/kg and 10 mg/kg of nisin and 0.25% and 0.5% thyme oil were added to groups other than bacterial control group. The same procedure was applied in the second work package, which is S. aureus. Microbiological follow-up of the prepared samples on the 0, 3, 5 and 7th storage days was performed. In addition, pH, ORP (Oxidation Reduction Potential) and aw analyzes were performed. Three replications of the experimental groups formed in both work packages were carried out and two parallel samples were analyzed from each sample. In the study, it was determined that using 0.5% thyme oil showed a high antimicrobial effect in samples containing L. monocytogenes and S. aureus (p<0.05). Although thyme oil inhibits bacterial growth, it is observed that the sharp aroma of thyme oil suppresses the unique taste and smell of cream.
- Subjects
STAPHYLOCOCCUS aureus; NISIN; THYMES; LISTERIA monocytogenes; DRUG resistance
- Publication
Kocatepe Veterinary Journal / Kocatepe Veteriner Dergisi, 2022, Vol 15, Issue 2, p200
- ISSN
1308-1594
- Publication type
Article
- DOI
10.30607/kvj.1087546