2.1 Materials
CP meal was obtained from Pleasant Valley Oil Mills (Clive, AB, Canada). Commercial HE meal was gifted by Bunge Canada (Harobe, MB, Canada). Fungal strains of Aspergillus niger NRRL 334 andAspergillus oryzae NRRL 5590 were of GRAS status and obtained from Agricultural Research Service (ARS) Culture Collection (Northern Regional Research Laboratory (NRRL), Peoria, IL, USA). All media, reagents, and chemicals used were of analytical grade and obtained from Sigma-Aldrich Canada Ltd. (Oakville, ON, Canada).