Biomaterial Database

Production of ochratoxins by some Egyptian Aspergillus strains. 1992

N M el-Shayeb, and S S Mabrouk, and A M Abd-el-Fattah

Department of Chemistry of Natural and Microbial Products, National Research Centre, Dokki, Cairo, Egypt.

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.

UI	MeSH Term	Description	Entries
D009793	Ochratoxins	Isocoumarins found in ASPERGILLUS OCHRACEUS and other FUNGI. Ochratoxin contaminated FOOD has been responsible for cases of FOODBORNE DISEASES.	Ochratoxin
D003470	Culture Media	Any liquid or solid preparation made specifically for the growth, storage, or transport of microorganisms or other types of cells. The variety of media that exist allow for the culturing of specific microorganisms and cell types, such as differential media, selective media, test media, and defined media. Solid media consist of liquid media that have been solidified with an agent such as AGAR or GELATIN.	Media, Culture
D004534	Egypt	A country in northern Africa, bordering the Mediterranean Sea, between Libya and the Gaza Strip, and the Red Sea north of Sudan, and includes the Asian Sinai Peninsula Its capital is Cairo.	Arab Republic of Egypt,United Arab Republic
D001230	Aspergillus	A genus of mitosporic fungi containing about 100 species and eleven different teleomorphs in the family Trichocomaceae.
D001235	Aspergillus ochraceus	An imperfect fungus that produces ochratoxins which contaminates EDIBLE GRAIN and coffee beans.