title: Production of ochratoxins by some Egyptian Aspergillus strains.
abstract: In all the investigated Aspergillus ochraceus and A. alliaceus strains the maximum quantities of ochratoxins produced on yeast extract-sucrose (YES) medium exceeded that detected on wheat solid medium except A. ochraceus 67. The shake cultures lowered ochratoxins formation. The maximum yields of ochratoxins did not coincide with maximum fungal growth. In most A. strains investigated, the total ochratoxin contents of the culture filtrates highly exceeded that of the mycelia.
authors.affiliation: Department of Chemistry of Natural and Microbial Products, National Research Centre, Dokki, Cairo, Egypt.
authors.forename: N M
authors.initials: NM
authors.lastname: el-Shayeb
authors.forename: S S
authors.initials: SS
authors.lastname: Mabrouk
authors.forename: A M
authors.initials: AM
authors.lastname: Abd-el-Fattah
mesh_terms: D001230:Aspergillus / Q000378:metabolism*; D001235:Aspergillus ochraceus / Q000378:metabolism*; D003470:Culture Media; D004534:Egypt; D009793:Ochratoxins / Q000096:biosynthesis*
chemical_list: D003470:Culture Media; D009793:Ochratoxins