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HISTOLOGICAL CHANGES IN SARDINE (CLUPEA SARDINA) MUSCLES DURING FREEZING.

MODIFICATIONS HISTOLOGIQUES DES MUSCLES DE SARDINE (CLUPEA SARDINA) AU COURS DE LA CONGELATION.

Author(s) : LABIE C., MATHAT A.

Type of article: Article

Summary

THE AA. SURVEY THE LITERATURE ON THE PHYSICAL AND CHEMICAL CHANGES IN FROZEN SARDINES AND THE HISTOLOGICAL CHANGES DUE TO FREEZING AND REPORT THE RESULTS OF THEIR HISTOLOGICAL STUDY OF MEDITERRANEAN SARDINES, DISTRIBUTED INTO THREE LOTS: FRESH SARDINES, CHILLED SARDINES AND SARDINES FROZEN TO 253 K (-20C) AFTER OR WITHOUT PRECOOLING, THEN STORED AT THIS TEMPERATURE FOR VARYING TIMES (FROM SEVERAL DAYS TO THREE MONTHS) AND THAWED SLOWLY OR RAPIDLY. THE RESULTS OF THIS STUDY, ILLUSTRATED BY EIGHT MICROPHOTOGRAPHS, SHOW THAT THE HISTOLOGICAL ANALYSIS CAN BE USED AS A MEANS FOR IDENTIFYING SARDINES FROZEN, THEN THAWED, PRIOR TO CONSUMPTION. SARDINES FROZEN UNDER CONDITIONS SIMILAR TO FIELD CONDITIONS SHOW AFTER 8 DAY STORAGE AT 253 K DETERIORATIONS OF MUSCLE FIBRES APPEARING IN THE FORM OF INTRACELLULAR CAVITIES, OF DIFFERENT SIZES, MAINLY OBSERVED IN THE SURFACE DORSAL MYOMERES OF BIG SIDE MUSCLES WHICH MAY THEREFORE BE CONSIDERED AS A CHOICE PECIFIC DETERIORATION DEPENDS ON UNITS, HENCE THE INTEREST OF TAKING SEVERAL SAMPLES FROM THE SAME LOT. THE NUMBER AND, MORE ESPECIALLY, THE SIZE OF INTRACELLULAR CAVITIES INCREASE WITH THE STORAGE TIME OF FROZEN SARDINES. G.G.

Details

  • Original title: MODIFICATIONS HISTOLOGIQUES DES MUSCLES DE SARDINE (CLUPEA SARDINA) AU COURS DE LA CONGELATION.
  • Record ID : 1982-0507
  • Languages: French
  • Source: Rev. gén. Froid - vol. 71 - n. 5
  • Publication date: 1981/05
  • Document available for consultation in the library of the IIR headquarters only.

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