1. Chemistry Department University of Helsinki, AI Virtasen Aukio 1, Helsinki FI-00560, Finland
2. Department of Bioproducts and Biosystems Aalto University Otakaari 1B, FI-00076, Espoo, Finland
3. BA54 Biomaterial processing and products VTT Technical Research Centre of Finland Ltd Tietotie 4e, FI-02150, Espoo, Finland