Document Detail

Free radicals in licorice-flavored sweets can Be detected noninvasively using low frequency electron paramagnetic resonance after oral administration to mice.
MedLine Citation:
PMID:  10867059     Owner:  NLM     Status:  MEDLINE    
The observation of the fate of free radicals coming from food after oral administration could be important in evaluating their reactivity in vivo. The aim of this study was to demonstrate that it is feasible to detect directly in vivo free radicals coming from food with the use of low frequency electron paramagnetic resonance (EPR) spectroscopy. Because polyphenols are easily oxidized into stable radicals, we assumed that these radicals could be detected in food. We chose licorice, which contains several types of polyphenols. The presence of free radicals was demonstrated in licorice-flavored sweets. Using low frequency EPR spectroscopy, we detected these free radicals directly and noninvasively after oral administration to mice. These radicals were rather stable in the guts of the mice. This study is the first report demonstrating noninvasively the presence of free radicals in vivo coming from food.
B Gallez; C Baudelet; R Debuyst
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of nutrition     Volume:  130     ISSN:  0022-3166     ISO Abbreviation:  J. Nutr.     Publication Date:  2000 Jul 
Date Detail:
Created Date:  2000-08-01     Completed Date:  2000-08-01     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0404243     Medline TA:  J Nutr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1831-3     Citation Subset:  IM    
Laboratory of Medicinal Chemistry and Radiopharmacy, Université Catholique de Louvain, B-1200 Brussels, Belgium.
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MeSH Terms
Administration, Oral
Electron Spin Resonance Spectroscopy*
Free Radicals / analysis
Glycyrrhiza / chemistry*
Plants, Medicinal*
Reg. No./Substance:
0/Free Radicals

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