| Formation of trihalomethanes in foods and beverages. | |
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MedLine Citation:
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PMID: 19680970 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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Trihalomethanes (THMs) are suspected carcinogens and reproductive toxicants commonly found in chlorinated drinking water. This study investigates THM formation during the preparation of beverages and foods using chlorinated drinking water. A total of 11 foods and 17 beverages were tested. Under the experimental conditions, each food and beverage formed THMs, primarily chloroform, although low or trace levels of brominated THMs were also detected. Tea formed the highest THM levels (e.g., chloroform levels from 3 to 67 microg l(-1)), followed by coffee (from 3 to 13 microg l(-1)), rice (9 microg l(-1)), soups (from 0.4 to 3.0 microg l(-1)), vegetables (<1 microg l(-1)), and baby food (<0.7 microg l(-1)). Chloroform formation with instant tea, used as a highly reproducible model system, increased with free chlorine concentration, decreased with higher food (tea) concentration, and was unaffected by reaction (steeping) time and bromide ion concentration. These findings indicate that chlorine-food reactions are fast, but that formation decreases as the chlorine demand of the food system increases. THMs are formed in the preparation and cooking of a wide variety of foods if free chlorine is present, and our results suggest that tea can be a significant source of exposure to THMs. |
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Authors:
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A-T Huang; S Batterman |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment Volume: 26 ISSN: 1944-0057 ISO Abbreviation: Food Addit Contam Part A Chem Anal Control Expo Risk Assess Publication Date: 2009 Jul |
Date Detail:
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Created Date: 2009-08-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101485040 Medline TA: Food Addit Contam Part A Chem Anal Control Expo Risk Assess Country: England |
Other Details:
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Languages: eng Pagination: 947-57 Citation Subset: IM |
Affiliation:
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Department of Environmental Health Sciences, University of Michigan, Ann Arbor, 48109-2029, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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