Document Detail

Regional differences in N-nitrosamine content of traditional Chinese foods.
MedLine Citation:
PMID:  1855853     Owner:  NLM     Status:  MEDLINE    
Traditional uncooked and cooked Chinese foods from six provinces with different cancer patterns were analysed for volatile N-nitrosamines (VNA) by gas chromatography-thermal energy analysis. Selected samples were also analysed for N-nitrosamino acids (NAA). N-Nitrosodiethylamine was the VNA found most often (in 91/108 samples; less than 0.2-17.5 micrograms/kg), followed by N-nitrosodimethylamine (in 75/108 samples; less than 0.2-17.3 micrograms/kg). N-Nitrosodipropylamine was detected in 11/108 samples (0.9-6.2 micrograms/g). Samples selected for analysis of NAA on the basis of their VNA content contained one or more NAA, including N-nitrosoproline and N-nitrosothiazolidine 4-carboxylic acid (range, 1.1-115 micrograms/kg; average, 35 micrograms/kg). Both the incidence and pattern of occurrence of VNA suggest that Chinese foods differ from western foods, which would not be expected to contain NAA as frequently nor to contain N-nitrosodipropylamine. The highest percentages of positive samples were from Zhejiang and Fujian provinces (89 and 91%, respectively), and they had the highest average VNA content. Beijing city and Sichuan province gave the lowest percentages of positive samples (75 and 56%, respectively) and the lowest average VNA content.
J Gao; J H Hotchkiss; J Chen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  IARC scientific publications     Volume:  -     ISSN:  0300-5038     ISO Abbreviation:  IARC Sci. Publ.     Publication Date:  1991  
Date Detail:
Created Date:  1991-08-29     Completed Date:  1991-08-29     Revised Date:  2000-12-18    
Medline Journal Info:
Nlm Unique ID:  8009542     Medline TA:  IARC Sci Publ     Country:  FRANCE    
Other Details:
Languages:  eng     Pagination:  219-22     Citation Subset:  IM    
Institute of Food Science, Cornell University, Ithaca, NY.
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MeSH Terms
Food Analysis*
Nitrosamines / analysis*
Reg. No./Substance:

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