Biofilms: Microbial Life on Surfaces (Turkish with English Abstract)

Yıl 2009, Cilt: 34 Sayı: 3, 165 - 173, 01.06.2009

İlhan Gün Fatma Yeşim Ekinci

Öz

A biofilm is a community of microorganisms encased within an exopolysaccharide matrix attached to a surface and causes serious problems for food industry. The extracellular polymeric matrix is an important structural component of biofilms. The matrix, which is composed of polysaccharides, proteins, nucleic acids and water, enables the biofilms to attach to the surfaces. One of the most important functions of the matrix is to protect the bacteria from various stress factors such as UV radiation, extreme pH values, osmotic pressure, dehydration and antibiotics. This study presents a review of the information about formation, structure and prevention of biofilms since they are one of the most important problems in food industry.

Anahtar Kelimeler

Biofilm, exopolysaccharide matrix, food industry      　　

Biyofilmler: Yüzeylerdeki Mikrobiyal Yaşam

Öz

Eksopolisakkarit matriks içinde sıvı bir yüzeye tutunan mikroorganizma topluluğundan oluşan biyofilmler gıda endüstrisi için ciddi problemlere neden olmaktadır. Hücre dışı polimerik matriks, biyofilmlerin önemli yapısal öğesidir. Polisakkarit, protein, DNA ve sudan oluşan hücre dışı matriks, biyofilm hücrelerinin tutunmasını sağlar. Matriksin en önemli fonksiyonlarından birisi UV radyasyon, farklı pH koşulları, ozmotik basınç, su kaybı, antibiyotik gibi birçok faktöre karşı bakteriyi korumaktır. Bu makalede, gıda sanayisini ilgilendiren en önemli sorunlardan biri olduğu için, biyofilm oluşumu, yapısı ve önlenmesi hakkında bilgiler derlenmiştir. Eksopolisakkarit matriks içinde sıvı bir yüzeye tutunan mikroorganizma topluluğundan oluşan biyofilmler gıda endüstrisi için ciddi problemlere neden olmaktadır. Hücre dışı polimerik matriks, biyofilmlerin önemli yapısal öğesidir. Polisakkarit, protein, DNA ve sudan oluşan hücre dışı matriks, biyofilm hücrelerinin tutunmasını sağlar. Matriksin en önemli fonksiyonlarından birisi UV radyasyon, farklı pH koşulları, ozmotik basınç, su kaybı, antibiyotik gibi birçok faktöre karşı bakteriyi korumaktır. Bu makalede, gıda sanayisini ilgilendiren en önemli sorunlardan biri olduğu için, biyofilm oluşumu, yapısı ve önlenmesi hakkında bilgiler derlenmiştir.

Anahtar Kelimeler

Biyofilm, eksopolisakkarit matriks, gıda sanayisi 　　

Kaynakça

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