title: Production of aflatoxins B1 and G1 by Aspergillus flavus and Aspergillus parasiticus isolated from market pecans.
abstract: 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 generally produced a greater amount of aflatoxins than A. flavus.
mesh_terms: D000348:Aflatoxins / Q000096:biosynthesis*; D000407:Alabama; D001230:Aspergillus / Q000302:isolation & purification / Q000378:metabolism*; D001231:Aspergillus flavus / Q000302:isolation & purification / Q000378:metabolism*; D005506:Food Contamination; D005516:Food Microbiology; D005845:Georgia; D009754:Nuts; D009825:Oklahoma; D013045:Species Specificity
chemical_list: D000348:Aflatoxins