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Radiocesium activity reduction in boar meat by brining.

P Dvorák1, V Kunová, J Kunová

  • 1Department of Biochemistry, Chemistry and Biophysics, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Palackého 1-3, 612 42 Brno, Czech Republic. dvorakp@vfu.cz

Radiation and Environmental Biophysics
|September 21, 2007
PubMed
Summary
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Brining wild boar meat significantly reduces cesium-137 (137Cs) contamination. Double-brine exchanges removed over 72% of 137Cs, offering an effective method for decontaminating pork.

Area of Science:

  • Food science and technology
  • Environmental radioactivity
  • Nuclear safety

Background:

  • Wild boar meat can accumulate radioactive cesium-137 (137Cs) from environmental contamination.
  • Effective decontamination methods are crucial for ensuring the safety of wild game meat.
  • Traditional processing methods like dry-salting show limited effectiveness in reducing 137Cs levels.

Purpose of the Study:

  • To evaluate the efficacy of brining techniques in reducing cesium-137 (137Cs) activity in wild boar meat.
  • To compare the effectiveness of different brining solutions and exchange frequencies.
  • To assess the technological feasibility of brining as a decontamination method.

Main Methods:

  • Wild boar meat with an initial 137Cs concentration of 103 Bq kg(-1) was subjected to dry-salting.

Related Experiment Videos

  • Subsequent brining was performed using pure sodium chloride and a sodium chloride/potassium nitrate mixture.
  • Double-brine exchanges were conducted at 24-hour and 7-day intervals.

    • Main Results:

    • Dry-salting alone reduced 137Cs activity by only 12-18%.
    • Double-brine exchanges, regardless of the time interval (24h or 7 days), reduced 137Cs activity concentration by at least 72%.
    • No significant difference in 137Cs reduction was observed between the different brine exchange time intervals.

    Conclusions:

    • Repeated brine exchange is a highly effective method for reducing cesium-137 (137Cs) in contaminated wild boar meat.
    • The brining process, particularly double-brine exchange, offers a practical and technologically feasible approach to decontaminate pork.
    • This method provides a significant reduction in radioactivity, enhancing the safety of wild game consumption.