The acids produced from sugar by a Penicillium parasitic upon Aspergillus niger

Abstract

THE mould whose behaviour on sugar solutions forms the subject of the present communication is a Penicillium originally isolated from an unsterilised cane sugar nutrient solution. Moulds believed to be of the same species have since been encountered contaminating Aspergillus cultures. The same or very similar species have also been found in nature accompanying Aspergillus niger. The