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production of aflatoxins b1 and g1 by aspergillus flavus and aspergillus parasiticus isolated from market pecans.one hundred and forty-eight isolates of aspergillus flavus and a. parasiticus were isolated from 5,608 pecans obtained from chicago and georgia markets. the percentage of internal contamination by these species was 7.3% in the chicago market pecans and 1.7% in those from markets in georgia. of the 148 isolates, 93% of the a. parasiticus, but only 54% of the a. flavus, were capable of producing aflatoxin. overall, 57% of the isolates were potentially aflatoxigenic. a. parasiticus isolates general ...1975811163
regional differences in production of aflatoxin b1 and cyclopiazonic acid by soil isolates of aspergillus flavus along a transect within the united states.soil isolates of aspergillus flavus from a transect extending from eastern new mexico through georgia to eastern virginia were examined for production of aflatoxin b1 and cyclopiazonic acid in a liquid medium. peanut fields from major peanut-growing regions (western texas; central texas; georgia and alabama; and virginia and north carolina) were sampled, and fields with other crops were sampled in regions where peanuts are not commonly grown. the a. flavus isolates were identified as members of ...199910103234
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