Cyanobacteria are known to be colonized by various heterotrophic bacteria. With a view to understand the associated organisms from cyanobacterial products especially 6 different Spirulina products such as two forms of Spirulina powder, one crunchy form and three different tablets were selected. A total of 30 bacterial strains were isolated and their biochemical and cultural characteristics were studied. The isolates were subjected for silver nanoparticle production. Microscopic results revealed that most of them were gram positive and non-motile. Among the 30 isolates most of them can able to synthesize nanoparticles with silver. It indicates that the colonial characteristics alone cannot serve as a tool to characterize the bacterial isolates. Hence these isolates were carefully examined and selected for further analysis.
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Author Name: S S Sudha, R Karthic, Mebin Francis, Soumya T S, J RengaRamanujam.
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Keywords: Associated bacteria,Cyanobacteria- Spirulina,Silver nanoparticles
EISSN: 2229 – 6905