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Department of Bioproducts and Biosystems

Biopolymer Chemistry and Engineering

The Biopolymer Chemistry and Engineering group is led by Prof. Michael Hummel. The group explores the structural features and thermochemical behavior of biopolymer solutions and suspensions to produce value-added products. Fundamental studies are directed towards the modification of biopolymers following the principles of green chemistry and enhancing the understanding of the visco-elastic properties of biopolymer solutions and suspension.

The application focus of the group is on sustainable textiles and biobased carbon materials.
Biopolymer Chemistry and Engineering, photo: Valeria Azovskaya
photo by: Valeria Azovskaya

Research areas:

Dyed textile samples

Sustainable textiles

Our research team continues the development of the Ioncell® process. The focus is on textile recycling and sustainable dyeing processes.

Department of Bioproducts and Biosystems
A picture of a carbon line machinery

Biobased carbon materials

We investigate the use of wood-derived polymers and other biopolymers as bio-based alternative precursor material for various applications.

Department of Bioproducts and Biosystems
Photo of notes on a whiteboard

Carbohydrate chemistry

Our research is aiming at introducing additional functionality to biopolymers with a special focus on textile applications and to develop suitable analytical tools

Department of Bioproducts and Biosystems
Transparent film in front of a wood log

Cellulose films

Our research focuses on the use of the Ioncell® technology to produce high-strength films through continuous extrusion.

Department of Bioproducts and Biosystems
A graph describing shear viscosity as a function of shear rate

Rheological behavior of biopolymer solutions and suspensions

Traditional and novel solvent systems are explored to dissolve various biopolymers and non-polymeric constituents. The solutions or suspensions are characterized by a comprehensive set of rheological tools (shear, capillary and extensional rheometers).

Department of Bioproducts and Biosystems
A picture including a graph and chemical structures + chemical supplies

Analytical tools

Analytical chemistry is needed throughout the modification and/or manufacturing process of biomaterials. Knowledge on the chemical composition and molar mass of biopolymers is essential and thus we aim to develop new strategies for detailed biopolymer characterization.

Department of Bioproducts and Biosystems

A thoughtful use of biopolymers can help us to create a more sustainable society.

Michael Hummel

Latest publications:

Sydney Brake, Diego Gomez-Maldonado, Sarah Zohdy, Michael Hummel, Alistair W.T. King, Adriana Restrepo-Osorio, Maria Soledad Peresin 2026 Carbohydrate Polymers

Erandy Correa Guillen, Sahar Babaeipour, Paula Nousiainen, Susanna Forssell, Nina Forsman, Inge Schlapp-Hackl, Muhammad Awais, Monika Österberg, Luana Dessbesell 2026 Bioresource Technology

Leena Pitkänen, Monika Tuominen, Behnaz Asadzadeh, Petri Uusi-Kyyny, Kalle Kaipanen, Petri Kilpeläinen, Michael Hummel, Herbert Sixta 2026 Carbohydrate Research

Ritesh Sharma, Inge Schlapp-Hackl, Michael Hummel, Ali Tehrani-Bagha 2026 Macromolecular Materials and Engineering

Marie Alopaeus, Matthias Stosiek, Daryna Diment, Joakim Löfgren, Mi Jung Cho, Jarl Hemming, Teija Tirri, Andrey Pranovich, Patrik C. Eklund, Davide Rigo, Mikhail Balakshin, Chunlin Xu, Patrick Rinke 2025 Scientific Data

Mi Jung Cho, Justine Yiu, Li Ting Lin, Qi Hua, Muzaffer A. Karaaslan, Scott Renneckar 2025 ChemSusChem

Daryna Diment, Joakim Löfgren, Marie Alopaeus, Matthias Stosiek, MiJung Cho, Chunlin Xu, Michael Hummel, Davide Rigo, Patrick Rinke, Mikhail Balakshin 2025 ChemSusChem

Daryna Diment, Oliver Musl, Mikhail Balakshin, Davide Rigo 2025 ChemSusChem

Johanna Freilinger, Thomas Gelbrich, Doris E. Braun, Ulrich J. Griesser, Rania Bakry, Volker Kahlenberg, Thomas Müller, Christoph Kreutz, Sven Nerdinger, Lukas Fliri, Herwig Schottenberger 2025 Journal of Molecular Structure

Esubalew Kasaw Gebeyehu, Rekha Shresth, Tonmoy Saha, Jenni Tienaho, Ulla Jauhiainen, Ali Amin Tarhini, Ali Reza Tehrani-Bagha 2025 Bioresources and Bioprocessing
More information on our research in the Aalto research portal.
Photo of group members
The Biopolymer Chemistry & Engineering group in the fall 2022
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