How can sustainable raw materials be produced in an environmentally friendly and efficient way in the future? In an interview with Hamburg Science, Prof. Dr. Andreas Liese, head of Technical Biocatalysis at TUH Hamburg, provides insights into innovative biotechnological processes that could replace fossil resources. Using a bubble reactor, he vividly demonstrates how microorganisms and enzymes are used to produce sustainable raw materials – and what potential these technologies offer for a climate-friendly industry.