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EFFECT OF FREEZING AND THAWING ON PRESS JUICE ENZYME ACTIVITY IN THE MUSCLE OF FARMED FISH AND SHELLFISH.

Author(s) : DAMODARAN NAMBUDIRI D., GOPAKUMAR K.

Summary

SIX SPECIES OF FISH AND SHELLFISH WERE USED: MRIGAL (CIRRHINUS MRIGALA), MULLET (LIZA PARSIA), PEARLSPOT (ETROPLUS SURATENSIS), MILK FISH (CHANOS CHANOS), TILAPIA (OREACHROMIS MOSSAMBICUS) AND PRAWN (PENAEUS INDICUS). THERE WAS A SUBSTANTIAL INCREASE IN THE ACTIVITY OF LIPOAMIDE REDUCTASE AND 5'AMP DEAMINASE IN THE PRESS JUICE. CA2+ ATPASE AND LACTATE HYDROGENASE ACTIVITIES ROSE, BUT ONLY IN MRIGAL AND PEARLSPOT WERE THE INCREASES SUBSTANTIAL. DISRUPTION OF MITOCHONDRIA AND THE RELEASE OF ENZYMES INTO THE CELL SAP COULD BE THE CAUSE OF INCREASED ACTIVITY. ASSAY OF LIPOAMIDE REDUCTASE AND 5'AMP DEAMINASE IN THE JUICE CAN BE EMPLOYED IN DISTINGUISHING FRESH FISH FROM FISH THAT HAS BEEN FROZEN AND THAWED.

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Pages: p 229-233

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Details

  • Original title: EFFECT OF FREEZING AND THAWING ON PRESS JUICE ENZYME ACTIVITY IN THE MUSCLE OF FARMED FISH AND SHELLFISH.
  • Record ID : 1992-1242
  • Languages: English
  • Source: Chilling and Freezing of New Fish Products.
  • Publication date: 1990/09/18
  • Document available for consultation in the library of the IIR headquarters only.

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