Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5630
Title: Effects of nisin and lysozyme on growth inhibition and biofilm formation capacity of staphylococcus aureus strains isolated from raw milk and cheese samples
Authors: Sudağıdan, Mert
Yemenicioğlu, Ahmet
Keywords: Staphylococcus aureus
Cheese
Milk
Biofilm formation
Nisin
Lysozyme
Issue Date: Sep-2012
Publisher: International Association for Food Protection
Source: Sudağıdan, M., and Yemenicioğlu, A. (2012). Effects of nisin and lysozyme on growth inhibition and biofilm formation capacity of staphylococcus aureus strains isolated from raw milk and cheese samples. Journal of Food Protection, 75(9), 1627-1633. doi:10.4315/0362-028X.JFP-12-001
Abstract: Effects of nisin and lysozyme on growth inhibition and biofilm formation capacity of 25 Staphylococcus aureus strains isolated from raw milk (13 strains) and cheese (12 strains) were studied. Nisin was tested at concentrations between 0.5 and 25 μg/ ml; the growth of all strains was inhibited at 25 μg/ml, but the resistances of strains showed a great variation at lower nisin concentrations. In contrast, lysozyme tested at concentrations up to 5.0 mg/ml showed no inhibition on the growth of strains. Nisin used at the growth inhibitory concentration prevented the biofilm formation of strains, but strains continued biofilm formation at subinhibitory nisin concentrations. Lysozyme did not affect the biofilm formation of 19 of the strains, but it caused a considerable activation in the biofilm formation capacity of six strains. Twelve of the strains contained both biofilm-related protease genes (sspA, sspB, and aur) and active proteases; eight of these strains were nisin resistant. These results suggest a potential risk of S. aureus growth and biofilm formation when lysozyme is used in the biopreservation of dairy products. Nisin can be used to control growth and biofilm formation of foodborne S. aureus, unless resistance against this biopreservative develops. Copyright ©, International Association for Food Protection.
URI: http://doi.org/10.4315/0362-028X.JFP-12-001
http://hdl.handle.net/11147/5630
ISSN: 0362-028X
Appears in Collections:Food Engineering / Gıda Mühendisliği
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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