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" Bakteriyel biofilm oluşumu ve inaktivasyonunu etkileyen çevresel faktörler "
Üreğen, Mert
Baysal, Ayşe Handan
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Latin Dissertation
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| Language of Document
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English
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| Record Number
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1112198
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| Doc. No
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TLpq2522624445
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| Main Entry
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Baysal, Ayşe Handan
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Üreğen, Mert
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| Title & Author
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Bakteriyel biofilm oluşumu ve inaktivasyonunu etkileyen çevresel faktörler\ Üreğen, MertBaysal, Ayşe Handan
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| College
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Izmir Institute of Technology (Turkey)
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| Date
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2020
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| student score
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2020
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| Degree
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Master's
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| Page No
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72
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| Abstract
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Objective of this study was to evaluate effect of UV-C radiation (0, 1.16 and 3.21 kJ/cm2), pomegranate (Punica granatum) seed essential oil (PGEO) and lemon (Citrus lemonum) plant essential oil (CLEO) on decontamination of Candida albicans, Listeria monocytogenes, Staphylococcus aureus and Esherichia coli O157:H7 biofilms formed at +4°C and 20°C on polystyrene, stainless steel and glass surfaces. After 16, 32 and 64 sec UV-C treatment 0.24 log CFU/cm2, 1.61 log CFU/cm2, 1.59 log CFU/cm2 reductions were achieved in the numbers of C. albicans biofilms formed at 20°C on polystyrene. In the numbers of S. aureus biofilms formed at 20°C on polystyrene 0.99 log CFU/cm2, 1.9 log CFU/cm2, 3.91 log CFU/cm2 reductions were obtained after 16, 32 and 64 sec UV-C treatments, respectively. In general C. albicans biofilm formed at 20°C on stainless steel was found as the most UV-C resistant biofilm. CLEO inhibited the growth of C. albicans, L. monocytogenes and S. aureus at MIC values of 186 µg/ml, 103.5 µg/ml and 103.5 µg/ml, respectively. The results of the study showed that UV-C radiation and CLEO can be used as an anti-biofilm agent to control or to prevent biofilm formation of foodborne bacterial pathogens. It was suggested that UV-C radiation and CLEO treatments have potential as a biofilm control interventions for the food industry.
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Bacteria
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Binding sites
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Biofilms
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Food contamination poisoning
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Pathogens
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Staphylococcus infections
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