Reference number
ISO 4133:1979
© ISO 2024
ISO 4133:1979
Meat and meat products — Determination of glucono-delta-lactone content (Reference method)
Edition 1
1979-02
Retirada
Retirada (Edición 1, 1979)

Resumen

The method consists in extracting of the compound with ice-cold perchloric acid solution, centrifuging, decanting and filtrating, followed by hydrolysis of the compound in a portion of the filtrate with potassium hydroxide into gluconate. Transformation of the gluconate in the extract by the following reactions: 1) with adenosine-5-triphosphate (ATP) and 2) with concomitant reduction of an equivalent amount of nicotinamide adenine dinucleotide phosphate (NADP). Photometric measurement of the amount of nicotinamide adenine dinucleotide phosphate (reduced) (NADPH) formed.

Informaciones generales

  • Estado
     : Retirada
    Fecha de publicación
     : 1979-02
    Etapa
    : Retirada de la Norma Internacional [95.99]
  • Edición
     : 1
    Número de páginas
     : 4
  • Comité Técnico :
    ISO/TC 34/SC 6
    ICS :
    67.120.10 
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