Journals / Gıda / 2018 / Cilt: 43 - Sayı: 2

A RESEARCH ON THE EFFECT OF VARIOUS CULTURE MEDIA FOR SPORULATION STRENGHT OF BACILLUS CEREUS

ÇEŞİTLİ BESİYERLERİNİN BACILLUS CEREUS SPORLANMASINDAKİ ETKİSİ ÜZERİNE BİR ARAŞTIRMA

Journal
Gıda
Pages
347–355
Publication Date
2018-03-08
DOI
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AI Summary & Key Takeaways

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

Low water activity, occurrence of manganese compounds and low carbon sources supports formation of spores.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Sporulation and germination of Bacillus cereus are important about foodborne illnesses.
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Key Findings & Data:In this study, 8 different kinds of media found in literature were studied and selecting optimal medium for B. cereus sporulation was aimed.
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Conclusion & Impact:Low water activity, occurrence of manganese compounds and low carbon sources supports formation of spores.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Bacillus cereus · sporlanma · besiyeri

Abstract

Sporulation and germination of Bacillus cereus are important about foodborne illnesses. Bacteria form spores when there’s any life threat and germinate when the conditions are back to normal. Composition of the food also affects sporulation. In this study, 8 different kinds of media found in literature were studied and selecting optimal medium for B. cereus sporulation was aimed. B. cereus ATCC 11778 was inoculated to the media and results were obtained on 5th, 12th and 18th days. Sporulation efficiency was indicated by percentage of TSAMB to TAMB. The fastest sporulation was occurred in m-TGEA medium in 5 days with 52 % efficiency rate, whereas m-DTSB was selected as the most effective medium with 92 % efficiency rate. In this study, it was observed that, content of media highly affects sporulation velocity and rate. Low water activity, occurrence of manganese compounds and low carbon sources supports formation of spores.

Özet

Gıdalarda Bacillus cereus kaynaklı hastalıklarda bakterinin sporlanması ve germinasyonu önemlidir. Bakteriler, yaşamsal bir tehdit altında olduklarında spor oluştururlar ve koşullar normale döndüğünde çimlenerek yaşamlarına devam ederler. Gıdanın bileşimi de sporlanma üzerinde etkilidir. Bu çalışmada, literatürde rastlanan 8 farklı besiyeri kullanılmak suretiyle, B. cereus’un sporlanması için en uygun besiyerinin seçilmesi amaçlanmıştır. Seçilen besiyerlerine önceden aktifleştirilmiş B. cereus ATCC 11778 suşu inoküle edilmiş, inkübasyona bırakılan besiyerlerinden 5., 12. ve 18. günlerde sonuç alınmıştır. Bakterilerin ne kadarının spor oluşturduğu, % TSAMB/TAMB oranı ile belirlenmiş ve sporlanma verimi en yüksek besiyeri belirlenmiştir. En hızlı sporlanma 5 gün sonunda %58 oranla m-TGEA’da gerçekleşirken 18 gün inkübasyon sonucunda en yüksek spor oranı %92 ile m-DTSB besiyeri en verimli besiyeri olarak seçilmiştir. Besiyeri içeriklerinin sporlanma hızını ve oranını etkilediğinin gözlendiği çalışmada su aktivitesinin düşüklüğü, mangan bileşiklerinin varlığı ve karbon kaynağının düşüklüğünün sporlanmayı desteklediği sonucuna varılmıştır.

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Cite This Article

ÇİLAK, G. Ö., HALKMAN, K. (2018). A RESEARCH ON THE EFFECT OF VARIOUS CULTURE MEDIA FOR SPORULATION STRENGHT OF BACILLUS CEREUS. Gıda, Cilt: 43 - Sayı: 2, 347–355. https://ajindex.com/articles/39231

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