Fig. 3. Ethanol concentrations during fermentation tests by S. commune NBRC 4928 using xylan from birch wood, arabinogalactan from larch wood and cedar as carbon sources. Four discs of S. commune NBRC 4827 (Sc4) or two discs each of S. commune and T. cucumeris IWA5b (Sc2 and Tc2) were inoculated into each flask.