PREPARATION OF RIBOFLAVIN USING MICROORGANISMS HAVING AN ALTERED ISOCITRATE LYASE ACTIVITY

摘要

A microbial riboflavin-production process is disclosed. Riboflavin-producing micro-organisms are cultivated in a culture medium and the thus produced riboflavin is then isolated. The process is characterised in that the endogenous isocitratlyase activity (ICL) of the micro-organisms used has been modified.