Purple non sulfur bacteria for biotechnological applications.

In this review, we focus on how purple non sulfur bacteria (PNSB) can be leveraged for sustainable bioproduction to support the circular economy (CE). We discuss the state of the field with respect to the use of purple bacteria for energy production, their role in wastewater treatment, as a fertilizer, and as a chassis for bioplastic production. We explore their ability to serve as single cell protein and production platforms for fine chemicals from waste materials.

Enhanced polyhydroxybutyrate production from acid whey through determination of process and metabolic limiting factors.

To sustainably produce biodegradable polyhydroxybutyrate (PHB), this study investigated effects of process and metabolic limiting factors during bioconversion of acid whey (AW) to PHB, offering economic and environmental advantages for dairy industry. Recombinant Escherichia coli LSBJ was used to achieve high PHB yields by utilizing both lactose and lactic acid as carbon source. Up to 85% PHB accumulation was achieved during growth on the synthetic AW.