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AUTOXIDATION OF BLUEFIN TUNA MYOGLOBIN ASSOCIATED WITH FREEZING AND THAWING.

Author(s) : CHOW C. J.

Type of article: Article

Summary

BLUEFIN TUNA OXYMYOGLOBIN SOLUTIONS WERE FROZEN EITHER QUICKLY AT 193 K (-80 DEG C) OR SLOWLY AT 253 K (-20 DEG C), THAWED, AND THE METMYOGLOBIN TO TOTAL MYOGLOBIN RATIO DETERMINED. WHEN QUICK FREEZING WAS APPLIED, AUTOXIDATION WAS CLEARLY PH-DEPENDENT, WITH A MINIMUM AT AROUND 5.9-6.3. WHEN SLOWLY FROZEN AND THAWED, ON THE OTHER HAND, TUNA MYOGLOBIN GENERALLY SHOWED AN EXTREMELY HIGH METMYOGLOBIN TO TOTAL MYOGLOBIN RATIO. FREEZING AND THAWING PARTIALLY INSOLUBILIZED TUNA MYOGLOBIN, DEPENDING UPON PH. THE MYOGLOBIN SHOWED THE MINIMUM RATIO OF INSOLUBILIZATION AT PH 6-6.3 AGAIN. INSOLUBILIZATION OF TUNA MYOGLOBIN WAS MARKEDLY ACCELERATED BY SODIUM CHLORIDE.

Details

  • Original title: AUTOXIDATION OF BLUEFIN TUNA MYOGLOBIN ASSOCIATED WITH FREEZING AND THAWING.
  • Record ID : 1988-0204
  • Languages: English
  • Publication date: 1987
  • Source: Source: J. Food Sci.
    vol. 52; n. 3; 1987.05-06; 589-591; 625; 3 fig.; 17 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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