 In this study, two strains of bacteria were isolated from cardboard industry wastewater and identified as entero-cockas sp and brevendimonas sp. These strains were then used to produce polyhydroxybutyrate, phb, a type of biodegradable plastic, in high concentrations. This is the first report of using cardboard industry wastewater as a source of cultivation for phb production. This article was authored by Anish Kumaribuwal, Gulab Singh, Nirochkumar Agawal and others.