Although no lactic acid bacterial cells were externally inoculated to the medium, some microbialcells grew on it and 24 kg
of lactic acid was formed after 24–36 h of incubation at 37C. The ratio ofD-and L-lactic acids was 14:86 at 24 h. In the saccharification, 7 kg of acetic acid and 5 kg formic acid were also produced. Under an optical microscope some bacteria
were observed in the reaction mixture; on the other hand no fungi were observed