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EFFECT OF DIPHOSPHATE ON BIOCHEMICAL CHANGES POSTMORTEM AND COLD SHORTENING IN GROUND BOVINE MUSCLE.

[In German. / En allemand.]

Author(s) : FISCHER C., HONIKEL K. O., HAMM R.

Type of article: Article

Summary

THE EFFECT OF AMOUNTS (0-10%) OF DIPHOSPHATE (DP) ADDED TO PRE-RIGOR GROUND BOVINE MUSCLE ON THE BREAKDOWN OF GLYCOGEN AND ATP AT 4 DEG C WAS STUDIED. INCREASING DP CONCENTRATION RESULTS IN A GRADUAL ACCELERATION OF THE BREAKDOWN OF GLYCOGEN DOWN TO FRUCTOSE DIPHOSPHATE (FDP). A CONSIDERABLE INHIBITION OF THE FURTHER BREAKDOWN OF FDP OCCURS AT DP CONCENTRATIONS OF 0.4% OR MORE. EVEN AT LOW CONCENTRATIONS, ADDITION OF DP TO PRE-RIGOR GROUND MUSCLE CAUSES AN INHIBITION OF THE COLD SHORTENING OF MUSCLE FIBER FRAGMENTS. A DISCUSSION OF THESE RESULTS LEADS TO THE ASSUMPTION THAT DP COMPETES WITH ATP FOR THE SAME BINDING SITE(S) ON THE MYOSIN AND, THEREFORE ACTS AS AN ATP ANALOGUE.

Details

  • Original title: [In German. / En allemand.]
  • Record ID : 1984-2325
  • Languages: German
  • Source: Z. Lebensm.-Unters. -Forsch. - n. 178
  • Publication date: 1984
  • Document available for consultation in the library of the IIR headquarters only.

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