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IMPROVEMENTS IN THE DETERMINATION OF VITAMIN B1, B2 AND B6

Objective



The current project is undertaken as a consequence of an intercomparison made under project no 341 which identified serious difficulties in the analysis of vitamins B1, B2 and B6.

The aim of this project is to improve the extraction and dephosphorylation procedures for these vitamins. The following will be investigated: choice of enzyme, pH, temperature, incubation time and sample:enzyme ratio. Further intercomparisons will involve the certification of these vitamins in reference materials prepared under project no 341 (vitamin enriched milk powder, flour, brussels sprouts) and Project 406 (lyophilized liver).

STATUS

The first study designed to optimize the method is underway and will be completed in Spring 1992.

Coordinator

Institute of Food Research
Address
Norwich Laboratory Colney Lane
NR4 7UA Norwich
United Kingdom

Participants (5)

FEDERAL RESEARCH CENTRE FOR NUTRITION
Germany
Address
Haid-und-neu-strasse 9
76131 Karlsruhe
Justus-Liebig-Universität Giessen
Germany
Address
Wilhelmstraße 20
35398 Giessen
Laboratory of the Government Chemist (LGC)
United Kingdom
Address
Queen's Road
TW11 0LY Teddington
National Food Agency of Denmark
Denmark
Address
19,Mörkhöj Bygade
2860 Söborg
RIKILT
Netherlands
Address

6700 AE Wageningen