Influence of inoculum size of Aspergillus parasiticus spores on aflatoxin production.
AUTOR(ES)
Sharma, A
RESUMO
The influence of the inoculum size on growth and aflatoxin production was examined in Aspergillus parasiticus (NRRL 3145) by using a synthetic medium. The reduction in the number of spores by 4 to 5 log cycles either by serial dilution or by gamma irradiation caused a two fold increase in the toxin production. The decrease in the inoculum size induced a lag in growth of the culture, though the final yield of the mycelium over the 28-day experimental period was the same. The maximal accumulation of aflatoxin was observed on day 14 of incubation. A transition from the biphasic to monophasic pattern in aflatoxin production could be correlated with the size of the inoculum. The enhanced toxin production from dilute inocula was similar to that obtained with the surviving fraction of the spores after gamma irradiation (0 to 150 krads).
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=291709Documentos Relacionados
- Aflatoxin Production in Peanut Varieties by aspergillus flavus Link and Aspergillus parasiticus Speare
- Effect of Corn Steep Liquor on Mycelial Growth and Aflatoxin Production in Aspergillus parasiticus1
- Growth and aflatoxin production by Aspergillus parasiticus from various carbon sources.
- Effect of specific amino acids on growth and aflatoxin production by Aspergillus parasiticus and Aspergillus flavus in defined media.
- Aflatoxin production via cross-feeding of pathway intermediates during cofermentation of aflatoxin pathway-blocked Aspergillus parasiticus mutants.
