Polyhydroxyalkanoates (PHAs) as one of biomaterials to replace plastics are intracellular energy storage linear polyesters produced in nature by bacterial fermentation of sugar and lipids. Due to biocompatibility and biodegradability of biologically-produced PHA for possible uses as plastics with promising physical and chemical characteristics. PHAs could be applicable to be biodegradable polymers for green technology of sustainable development. Regarding the bacteria that generated PHAs in different monomer compositions via diverse synthetic pathways for fermentative production, Aeromonas hydrophila were often popularly studied.
Due to this, this study tended to explore optimal operation strategy of PHA production using indigenous dye-decolorizing bacterium A. hydrophila NIU01 [10] for wastewater treatment and materials recycling and reuses afterwards.Recently, prior study [11] also showed the promising capability of PHA synthesis for A. hydrophila in the presence of decolorized intermediate(s) for wastewater decolorization.