Method for the production of riboflavin of modification b/c in granular form

摘要

The present invention relates to an improved process for preparing pure riboflavin (vitamin B2) of the B/C modification in granule form. Furthermore, the invention relates to pure riboflavin in granule form which has a bulk density to be determined in accordance with DIN 53468 of from 0.45 to 0.7 g/ml and, after tableting, has a dissolution of at least 80%.