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MICROBIOLOGICAL AND CHEMICAL CHANGES OF SPOTTED SHRIMP (PANDALUS PLATYCEROS) STORED UNDER MODIFIED ATMOSPHERES.

Author(s) : LAYRISSE M. E., MATCHES J. R.

Type of article: Article

Summary

SHRIMP WERE PACKED HEAD-ON AND HEAD-OFF IN POUCHES WITH AIR OR 50 OR 100% CO2 AND STORED AT 273 TO 275 K (0 TO 2 DEG C) FOR UP TO 23 DAYS. CO2 IN MODIFIED ATMOSPHERE POUCHES DISSOLVED IN THE LIQUID PHASE AND THE PH DECREASED. AS STORAGE PROGRESSED, THE PH INCREASED. ONLY 100% CO2 WAS EFFECTIVE IN EXTENDING THE LAG IN BACTERIAL GROWTH, BUT THE GREATEST DRIP WAS ALSO OBTAINED WITH THIS ATMOSPHERE. THE BACTERIAL FLORA CHANGED FROM MIXED GRAM-NEGATIVE AND GRAM-POSITIVE ORGANISMS TO A PREDOMINANTLY GRAM-POSITIVE FLORA. AMMONIA WAS PRODUCED THROUGHOUT STORAGE IN ALL ATMOSPHERES, BUT WAS DELAYED LONGER IN HEAT-OFF THAN IN HEAD-ON SHRIMP.

Details

  • Original title: MICROBIOLOGICAL AND CHEMICAL CHANGES OF SPOTTED SHRIMP (PANDALUS PLATYCEROS) STORED UNDER MODIFIED ATMOSPHERES.
  • Record ID : 1985-0637
  • Languages: English
  • Source: Journal of Food Protection - vol. 47 - n. 6
  • Publication date: 1984
  • Document available for consultation in the library of the IIR headquarters only.

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