Document Detail


Polychlorinated dibenzo-p-dioxins and dibenzofurans from food salt samples processed by heat treatment in Korea.
MedLine Citation:
PMID:  14659947     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Eight samples of processed food salt collected from five plants in Korea were analyzed for 2,3,7,8-substituted polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) using liquid-liquid extraction, clean-up procedures, and high resolution gas chromatography-high resolution mass spectrometry. The study included the analyses of two kinds of salt product sample: bamboo-salt and parched salt. The levels of toxic PCDD/Fs found in the salt product samples were extremely low: the results revealed TEQ levels ranging between the sub pg TEQ/g and sub fg TEQ/g. The differences in the TEQ values of toxic PCDD/F were observed between the salt product samples, which were treated with different frequency of baking using four different fuels (firewood, pine wood, pine resin, and indirect heating by gas) at temperatures from 300 to 2000 degrees C. In bamboo-salt samples, the concentrations and TEQ values of toxic PCDD/Fs ranged between 0.57-66 pg/g and 5.7x10(-5)-0.64 pg TEQ/g, respectively. PCDD/Fs levels in bamboo-salts baked by firewood were found to be higher than those baked by pinewood or pine resin. In parched salt samples, the concentrations and TEQ values of toxic PCDD/Fs ranged between 0.97-3.7 pg/g and 0.0097-0.017 pg TEQ/g, respectively. The data was discussed regarding the concentration and the distribution pattern of congeners.
Authors:
Jeong Soo Yang; Jungju Seo; Jeoung Hwa Shin; Yun Gyong Ahn; Dai Woon Lee; Jongki Hong
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Chemosphere     Volume:  54     ISSN:  0045-6535     ISO Abbreviation:  Chemosphere     Publication Date:  2004 Mar 
Date Detail:
Created Date:  2003-12-08     Completed Date:  2004-03-11     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  England    
Other Details:
Languages:  eng     Pagination:  1451-7     Citation Subset:  IM    
Affiliation:
Hazardous Substance Research Team, Korea Basic Science Institute, 126-16 5th St, Anam-dong Seongbuk-gu, Seoul 136-701, South Korea.
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MeSH Terms
Descriptor/Qualifier:
Benzofurans / analysis*
Dioxins / analysis*
Fossil Fuels
Gas Chromatography-Mass Spectrometry
Hot Temperature*
Korea
Resins, Plant
Sodium Chloride, Dietary / analysis*
Wood
Chemical
Reg. No./Substance:
0/Benzofurans; 0/Dioxins; 0/Fossil Fuels; 0/Resins, Plant; 0/Sodium Chloride, Dietary; 0/chlorinated dibenzofurans

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