The German prize winning project uses foam extract from tree trunk extract.

A project to produce insulation foam using extracts from trunk has won awards from the industry The project was carried out by researchers from the Freiburg materials research center The project leader, Professor Marie Pierre Laborie from the school of forestry and Environmental Sciences, University of Freiburg, won the title of "German high tech champion" in the "green building" category award released by Fraunhofer Association Freiburg University says the research team used the tannic acid extracted from the trunk to make rigid foam, which is usually discarded directly in the wood industry This foam has good insulation and flame retardancy and is therefore mainly used as insulating material for building and automotive forming parts In addition, they can also be used as catalysts or filters for heavy metals, and can also be used to replace packaging materials such as polystyrene foams Freiburg University says these materials are "useful even after the product is worn out", and the next goal is to convert the foam into biofuels The biofoambark project is supported by the renewable resources agency and funded by the Federal Ministry of food, agriculture and consumer protection.