Polyhydroxyalkanoates production in biorefineries: A review on current status, challenges and opportunities

A recent study highlights the importance of a sustainable and circular bioeconomy model, particularly due to the non-renewability and environmental impacts of petroleum. It emphasizes how biorefineries explore biomass to its maximum, serving as a key pillar in the development of a circular bioeconomy.

The focus of the study is Polyhydroxyalkanoates (PHAs), which can be produced using renewable feedstocks and have the potential to replace petrochemical plastics. The research evaluates the current status of industrial PHA production, their contributions to the bioeconomy, and future development points.

Notably, advancements are seen when PHA production is integrated with wastewater treatment systems, and when residues are used as the substrate. Analytical methodologies like the Life Cycle and Techno-Economic Analysis have also proven valuable in evaluating the production process.

For PHAs to be commercially successful, dedicated investment, supportive policies, and collaboration across different societal actors are crucial.