Document Detail


Determination of the formaldehyde content in fishery products.
MedLine Citation:
PMID:  3424999     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The influence of external factors, such as storage temperature and time on the content of free formaldehyde (FA) in fishery products is described. On the basis of the examination of several methods for the determination of free and bound FA, the following procedures are recommended: (1) for measuring free FA, the samples are extracted using 6% perchloric acid at room temperature and the FA content of the extracts is measured by the formation of 3,5-diacetyl-1,4-dihydrolutidine; (2) bound, acid-labile FA is released by steam distillation using 1% sulphuric acid, giving a pH value of about 1. The FA content of the distillates may be determined either by chromotropic acid assay or by the method described for the extracts.
Authors:
H Rehbein
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Zeitschrift für Lebensmittel-Untersuchung und -Forschung     Volume:  185     ISSN:  0044-3026     ISO Abbreviation:  Z Lebensm Unters Forsch     Publication Date:  1987 Oct 
Date Detail:
Created Date:  1988-01-29     Completed Date:  1988-01-29     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7509812     Medline TA:  Z Lebensm Unters Forsch     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  292-8     Citation Subset:  IM    
Affiliation:
Institut für Biochemie und Technologie, Bundesforschungsanstalt für Fischerei, Hamburg, Federal Republic of Germany.
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MeSH Terms
Descriptor/Qualifier:
Amino Acids / analysis
Animals
Chemical Phenomena
Chemistry
Fishes / metabolism*
Formaldehyde / analysis*
Indicators and Reagents
Naphthalenesulfonates / diagnostic use
Chemical
Reg. No./Substance:
0/Amino Acids; 0/Indicators and Reagents; 0/Naphthalenesulfonates; 148-25-4/chromotropic acid; 50-00-0/Formaldehyde

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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