eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2015-12-25 12 3 2133 2138 10.13005/bbra/1883 2123 article Antony. V. Samrot 1 M Bhakyalakshmi 1 K. L Venkatraman 1 K Sahiti 1 Sheryl-Ann Philip 1 T Jahnavi 1 Department of Biotechnology, Sathyabama University Sholinganallur, Chennai-600119 Polynucleotides, polypeptides, polysaccharides are the polymers seen in living organisms. Many biopolymers are important reserve compounds that are stored in the cytoplasm as insoluble inclusions. Likewise Polyhydroxyalkanoates are natural, renewable bio poly esters accumulated in bacteria in the presence of limited nitrogen sources and higher concentration of carbon source. In this study, PHA accumulation pattern of Pseudomonas aeruginosa was studied. The PHA was optimized for various carbon sources, incubation time, pH and temperature. Analytical techniques like FTIR and GC-MS were done to determine the types of monomer present in the biopolyester. https://www.biotech-asia.org/vol12no3/optimization-and-characterization-of-polyrhydroxyalkanoates-of-pseudomonas-aeruginosa/ PHA – Polyhydroxyalkanoates; Pseudomonas aeruginosa; GC-MS; FTIR