Hahn, Thomas Dr.-Ing.

Industrial Biotechnology | Bioprocess Engineering

Dr. Thomas Hahn studied chemistry and subsequently obtained his PhD at the Institute of Bioprocess Engineering at the University of Kaiserslautern with regard to the extraction and purification of heteropolysaccharides from brown algae. In 2012 he started as a research scientist at Fraunhofer IGB, and since 2016 he is deputy head of the working group “Bioprocess Development”.

The research topics of Thomas include natural polymers in general, in particular purification, modification and analysis. He works with several companies and research institutes having the aim to foster the application of renewable resources in textile processing.

    • Natural compound extraction
    • Analytics (spectroscopy, chromatography)
    • Enzyme catalysis/ Enzyme immobilization
    • Design of experiments/ Biostatistics
    • DSP of polysaccharides and proteins
    • Scale-up


    • Classical and agile project management
    • Mixing techniques
    • Scale-up
    • Cost estimation
    • Lab-View
    • From the idea to the bio-based product
    • Operational accident and environmental protection
    • GMP basis
    • Design of experiments
    • Comprehensive communication
    • Explorative and multivariate data analysis
    • Pivot tables
    The research topics of Thomas include the extraction of natural polysaccharides like cellulose, latex and chitin from renewable resources and the purification thereof. Another focus of his work is the chemical and biotechnological modification of the polysaccharides and the respective analytical characterization.
  • Professional career

    Since 2016 Deputy head of the working group "Bioprocess  Development" at the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart
    Since 2012 Research associate in the working group "Industrial Biotechnology" at the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart
    2008 – 05/2012 Research assistant / PhD at the Department of Bioprocess Engineering, Technical University of Kaiserslautern / Title: "Innovative downstream processes for the purification of heteropolysaccharides" (grade: very good)
    06/2001 – 06/2008 Studied chemistry at the Technical University of Kaiserslautern, graduating as “Diplom-Chemiker” / with a degree in chemistry (grade: 1,7)
  • Project title short

    Funding source


    Project title long

    La ChiPur Fraunhofer, SME 01.01.2021 – 31.12.2023 Purification of complex process wastewater with bifunctional biobased flocculant
    BiPoTEX BMEL 01.07.2021 – 30.06.2023 Preproject for the development of a biobased coating for textile finishing based on polyhydroxyalkanoates; Sub-project 2: Production and evaluation of different PHA variants. Expanding the use of renewable resources in textile finishing based on the biopolymer chitosan
    KEFIP BMEL 01.05.2019 – 30.04.2022 Complementary chemical-biotechnological process development for the novel production of 2,5-furandicarboxylic acid (FDCA) from inulin-accumulating plants
    SusPackaging BMBF 01.10.2017 – 30.09.2020 Sustainable production of polyhydroxyalkanoates (PHA) for packaging materials
    Hydrofichi BMBF 01.08.2017 – 31.01.2021 Bio-based hydrophobic and dirt-repellent finish for the substitution of pPerfluorochemicals (PFCs) on textile surfaces with chitosan derivatives
    ChitoTex BMBF 01.03.2015 – 28.02.2018 Development and production of new insect chitosan and chitosan based functional coatings for yarns and textile fabrics
  • Jahr
    Publication Type
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