Isolation , Molecular Identification and Comparative Lipid Profiling of Microalgae and Cyanobacteria

Abstract

The study conducted to assess the characterization and antibacterial activity of gold nanoparticles of Frangipani flower. The flower extract used to check antibacterial activity against Escherichia coli, Klebsiella, Serratia, Staph.epidermis, citrobacter and Proteus vulgariswere investigated.Gold nanoparticles using flower extract of Frangipanias reducing agent. The complete reduction of gold chloride was observed after 48 h of reaction. The characteristic color changes from pale yellow to dark brown during the formation of gold nanoparticles in the reaction due to their specific properties “Surface Plasmon Resonance” was observed. The flower extracts acts as reducing as well as encapsulate agent for the gold nanoparticles. The UV-Vis spectrophotometer, SEM, TEM and XRD was used to characterize the gold nanoparticles. The UV-visible spectrophotometer indicates a strong Plasmon resonance which is located at 400 nm. The TEM, SEM images show that obtained samples have spherical morphology.