PROCESS FOR PREPARING FODDER YEAST AND/OR ETHANOL FROM PLANT WASTES

摘要

A cellulose-containing starting substance is pre-treated with a dilute mineral acid and/or a dilute base, and then fermented under aerobic or anaerobic conditions in the presence of a Candida utilis var. cellulolytica strain deposited at the Hungarian National Collection of Microorganisms of the National Institute for Public Health on 23rd September, 1980 under No. CU 28 00199. When fermentation is performed under aerobic conditions, fodder yeast or a mixture of fodder yeast and ethanol is obtained, depending on the aeration rate, whereas when fermentation is performed under anaerobic conditions, ethanol is obtained.