Document Detail


Simultaneous occurrence of fumonisin B1 and other mycotoxins in moldy corn collected from the People's Republic of China in regions with high incidences of esophageal cancer.
MedLine Citation:
PMID:  8161178     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A total of 31 corn samples collected from households in the counties of Cixian and Linxian of the People's Republic of China, where high incidences of esophageal cancer have been reported, were analyzed for fumonisin B1 (FB1), aflatoxin, and total trichothecene mycotoxins. High levels of FB1 (18 to 155 ppm; mean, 74 ppm) were found in 16 of the samples that showed heavy mold contamination. FB1, at lower levels (20 to 60 ppm; mean, 35.3 ppm), was also found in 15 samples, collected from the same households, that did not show any visible mold contamination. The levels of aflatoxin in the samples were low (1 to 38.4 ppb; mean, 8.61 ppb). High levels of total type-A trichothecenes were also found in the moldy corn samples (139 to 2,030 ppb; mean, 627 ppb). Immunochromatography of selected samples revealed that these samples contained T-2 toxin, HT-2 toxin, iso-neosolaniol, monoacetoxyscirpenol, and several other type-A trichothecenes. The concentration of total type-B trichothecenes in 15 moldy corn samples was in the range of 470 to 5,826 ppb (mean, 2,359 ppb). High levels (3.7 to 5.0 mg/g) of FB1 were produced in corn in the laboratory by five Fusarium moniliforme strains isolated from the moldy corn. These fungi were also capable of forming various nitrosamines (5 to 16 micrograms per flask) in the presence of nitrate and precursor amines.(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
F S Chu; G Y Li
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Applied and environmental microbiology     Volume:  60     ISSN:  0099-2240     ISO Abbreviation:  Appl. Environ. Microbiol.     Publication Date:  1994 Mar 
Date Detail:
Created Date:  1994-05-13     Completed Date:  1994-05-13     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7605801     Medline TA:  Appl Environ Microbiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  847-52     Citation Subset:  IM    
Affiliation:
Food Research Institute, University of Wisconsin-Madison 53706.
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MeSH Terms
Descriptor/Qualifier:
China / epidemiology
Esophageal Neoplasms / epidemiology*
Food Contamination / analysis*
Fumonisins*
Fusarium / metabolism
Incidence
Mycotoxins / analysis*,  biosynthesis
Nitrosamines / metabolism
Zea mays / chemistry*,  microbiology
Chemical
Reg. No./Substance:
0/Fumonisins; 0/Mycotoxins; 0/Nitrosamines; 116355-83-0/fumonisin B1
Comments/Corrections

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