Boosting upstream and downstream processes to maximize yield of PHB production and 2,3-butanediol.

A circular bio-based economy is a key element of a European low carbon economy and is projected to increasingly contribute to greenhouse gas (GHG) emissions reductions, decreased dependence on fossil resources and drive economic growth over the next decades.

It can help meet the European Green Deal's goals, including its plan to reduce EU greenhouse gas emissions by at least 55% by 2030, compared to 1990 levels.

It also contributes to other EU initiatives, including the Circular Economy Action Plan, the Biodiversity Strategy, Zero Pollution action plan and the Farm to Fork Strategy .EU biorefineries producing bio-based products are expected to be an important part of the circular bio-based economy.

Moreover, deployment of biorefineries that utilise EU biomass will increase safe supply of raw materials, decrease emissions, and create jobs and business opportunities, especially in rural areas.

Approximately 300 chemical and material driven biorefineries at commercial or demonstration scale are located in the EU .PROMOFER project will address the valorisation of two kinds of feedstock (lignocellulosic biomass and food industry waste) through the improvement of the fermentation processes and downstream purification.

It will be produced 3 SSbD, circular bio-based products 1, 2) polyhydroxyalkanoates (PHAs) to be used in geotextile nets applications (agriculture sector) and coated paper packaging applications (packaging sectors); 3) 2,3-Butanediol (2,3-BDO) to produce bio-based PU for the technical textile applications in the fashion industry sector.

The integration of these waste streams as biorefinery feedstocks will allow reducing the volumes of landfilled waste, improving competitiveness, resource efficiency and opening new opportunities for the bioplastics production with added advantages of environmental performances and social acceptance.