Document Details

Document Type : Thesis 
Document Title :
Anti-biofilm Activity of Extracellular Polymeric Substances Isolated from Marine Surface Associated Bacteria
دراسة النشاط المضاد للطبقة الرقيقة الحيوية بواسطة المواد البوليميرية المعزولة من البكتيريا المرتبطة بالسطح البحري
 
Subject : Faculty of Marine Sciences 
Document Language : Arabic 
Abstract : Biofilm is the predominant mode of growth for bacteria in most natural and industrial environments. Biofilms usually consist of a complex accumulation of microorganisms, characterized by the secretion of immune extracellular tissue and adhesive complex interaction between cells. Molecules that inhibit the attachment, growth and survival of microorganisms in the biofilm complex are considered as biofilm inhibitory compounds. In this study, the extracellular metabolites were extracted from three bacterial strains isolated from soft coral and macroalga. The three bacterial strains were identified using 16S rRNA sequencing. The results showed that the culture supernatant extract of the three bacterial strains inhibited the biofilm-forming bacterial growth, attachment and barnacle larval settlement. The GC-MS analysis of the extract indicated the presence of compounds such as tetrapentacontane, diethyl phthalate, 1,2-tetradecanediol and 2H-Pyran-2-one. The bacterial strains were identified as Salinicoccus sp (from soft coral), Vibrio sp. and Stenotrophomonas maltophilia (from macroalga). According to the results of this study, bacteria associated with living organisms can be a source of biofilm-inhibiting chemicals. 
Supervisor : Dr. Satheesh Sathianeson 
Thesis Type : Master Thesis 
Publishing Year : 1445 AH
2023 AD 
Co-Supervisor : Dr. Mamdoh T Jamal 
Added Date : Saturday, October 21, 2023 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
رباب ابراهيم تنكلTunkal, Rabab IbrahimResearcherMaster 

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