Antimicrobial Activity and Bioactive Compound Producing Halophilic Bacteria | Chapter 10 | Theory and Applications of Microbiology and Biotechnology Vol. 3
Halophilic bacteria are commonly found in natural environments containing significant concentration of NaCl that harbor a number of microbes producing novel bioactive compounds. In this study we aimed to isolate and screen out the halophilic bacteria and to determine their activity for production of the bioactive compounds. Marine soil sediments were collected from the solar saltpans of Thoothukudi District, Tamil Nadu, India. Based on colony morphology, two species were isolated and identification was done by using morphological and biochemical tests. The extracts of cell-free supernatant of the two halophilic isolates were screened for bioactive compound and tested for antimicrobial activity against human pathogenic bacteria such as Staphylococcus aureus, Pseudomonas sp, Klebsiella sp, Vibrio sp, Escherichia coli and fungi Aspergillus niger and Penicillium chrysogenum by the agar cup diffusion method. The results were then compared to standard antibiotics which showed 80% of similar...