Journals / Gaziosmanpaşa Üniversitesi Ziraat Fakültesi Dergisi / 2008 / Cilt: 25 - Sayı: 1

Identification and Izolation of Lactic Acid Bacterium Having Antimicrobial Activity From Traditionaly Produced Cheese

Yöresel Peynirden Antimikrobiyal Aktiviteye Sahip Laktik Asit Bakterisinin İzolasyonu ve Tanısı

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1–6
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Antimicrobial substance is a proteinaceouse nature since it lost its activity when treated with papain.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, a bacterium having antimicrobial activity was isolated from a traditionally produced cheese, and it was identified and characterized by using general microbiological analysis, carbohydrate fermentation and fatty acid profile identification systems.
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Key Findings & Data:The isolated bacterium was Gram positive, coccus, non-motile, endospor, catalase, hemolyse, gelatinase, indol and Voges-Proskauer negative and able to grow in the presence of 3.0-6.5 % NaCl, and at pH 4.0 to 9.6 and 10-45oC.
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Conclusion & Impact:Antimicrobial substance is a proteinaceouse nature since it lost its activity when treated with papain.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Antimikrobiyal madde · Enterococcus faecalis · tanımlama

Abstract

In this study, a bacterium having antimicrobial activity was isolated from a traditionally produced cheese, and it was identified and characterized by using general microbiological analysis, carbohydrate fermentation and fatty acid profile identification systems. The isolated bacterium was Gram positive, coccus, non-motile, endospor, catalase, hemolyse, gelatinase, indol and Voges-Proskauer negative and able to grow in the presence of 3.0-6.5 % NaCl, and at pH 4.0 to 9.6 and 10-45oC. Carbohydrate fermantation and fatty acid profile identification systems showed that this bacterium was Enterococcus faecalis. The antimicrobial substance produced by this bacteria had an inhibitory activity against Lactobacillus plantarum, Enterococcus faecalis, Enterococcus faecium and Listeria monocytogenes, but not to Escherichia coli, Staphylococcus aureus and Bacillus cereus. Antimicrobial activity was not due to acidity and hydrogen peroxide. Antimicrobial substance is a proteinaceouse nature since it lost its activity when treated with papain.

Özet

Bu çalışmada yöresel bir peynirden antimikrobiyal aktiviteye sahip bir bakteri izole edilmiş ve genel mikrobiyolojik analizler, karbonhidrat fermantasyon ve yağ asidi profili testleri kullanılarak karakterize edilmiş ve tanımlanmıştır. İzole edilen bakterinin Gram pozitif, kok şeklinde, hareketsiz, endospor, katalaz, hemoliz, jelatinaz, indol ve Voges Proskauer negatif, % 3,0-6,5 NaCl konsantrasyonunda, pH 4,5-9,6 ve 10-45oC’de gelişebildiği tespit edilmiştir. Yapılan karbonhidrat fermantasyonu ile yağ asidi profili testleri sonucunda bakterinin Enterococcus faecalis olduğu belirlenmiştir. Bu bakteri tarafından üretilen antimikrobiyal maddenin Lactobacillus plantarum, Enterococcus faecalis, Enterococcus faecium ve Listeria monocytogenes’a karşı inhibitör aktiviteye sahip olduğu, ancak Escherichia coli, Staphylococcus aureus ve Bacillus cereus’a karşı etkili olmadığı gözlenmiştir. Antimikrobiyal aktivitenin asitlik ve hidrojen peroksitten kaynaklanmadığı belirlenmiştir. Papainle muamele sonucu aktivitesini kaybetmesi antimikrobiyal bileşiğin protein tabiatında olduğunu ortaya koymuştur.

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Cite This Article

İŞLEROĞLU, H., YILDIRIM, Z., YILDIRIM, M. (2008). Identification and Izolation of Lactic Acid Bacterium Having Antimicrobial Activity From Traditionaly Produced Cheese. Gaziosmanpaşa Üniversitesi Ziraat Fakültesi Dergisi, Cilt: 25 - Sayı: 1, 1–6. https://ajindex.com/articles/224593

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