Factors influencing polyhydroxyalkanoate accumulation in marine bacteria

Abstract

Six bacterial isolates from marine ecosystem accumulating > 1 g polyhydroxyalkanoates (PHA) per liter culture broth were characterized and identified. Various physicochemical parameters such as time, aeration, pH, carbon and nitrogen content, carbon substrates and organic nitrogen sources were optimized for PHA production by these selected cultures. The PHA yield from these cultures on optimization ranged between 1.4 gl to 3.9 gl culture broth.