Effects of Trace Metals on the Production of Aflatoxins by Aspergillus parasiticus
AUTOR(ES)
Marsh, Paul B.
RESUMO
Certain metals added as salts to a defined basal culture medium influenced the level of aflatoxin production by Aspergillus parasiticus in the low microgramsper-milliliter range of the added metal. In many cases no change or a relatively small change in mat weight and final pH of the medium accompanied this effect. With zinc at added levels of 0 to 10 μg/ml in the medium, aflatoxin increased 30-to 1,000-fold with increasing of zinc, whereas mat weight increased less than threefold. At 25 μg of added zinc per ml, aflatoxin decreased, but mat weight did not. At an added level of 25 μg or less of the metal per ml, salts of iron, manganese, copper, cadmium, trivalent chromium, silver, and mercury partly or completely inhibited aflatoxin production, without influencing mat weight.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=187113Documentos Relacionados
- Influence of temperature cycling on the production of aflatoxins B1 and G1 by Aspergillus parasiticus.
- Increased production of aflatoxins by Aspergillus parasiticus Speare in the presence of rubratoxin B.
- Influence of white light on production of aflatoxins and anthraquinones in Aspergillus parasiticus.
- Production of Aflatoxins B1 and G1 by Aspergillus flavus and Aspergillus parasiticus Isolated from Market Pecans
- Production of Aflatoxins by Aspergillus flavus Cultured on Flue-Cured Tobacco1