• Title/Summary/Keyword: frozen meat chunk

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Ohmic Thawing of a Frozen Meat Chunk (Ohmic Heating을 이용한 동결육의 해동)

  • Yun, Cheol-Goo;Lee, Do-Hyun;Park, Ji-Yong
    • Korean Journal of Food Science and Technology
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    • v.30 no.4
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    • pp.842-847
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    • 1998
  • Ohmic thawing in combination with conventional water immersion thawing was investigated. Frozen meat chunks $(10{\times}10{\times}10{\;}cm)$ were immersed in a water reservoir $(12{\times}12{\times}12{\;}cm)$ which temperature was maintained at $10^{\circ}C{\;}or{\;}20^{\circ}C$, and were positioned between two stainless-steel electrodes $(10{\times}10{\;}cm)$ having no direct contact with the samples. Alternating current $(60{\;}V{\sim}210{\;}V)$ at various frequency $(60{\;}Hz{\sim}60{\;}kHz)$ was used to generate internal heat by the electrical resistance. When the frequency was fixed to 60Hz, thawing time was reduced as the voltage increased. Frequency changes gave no significant effect on thawing time. Ohmically-thawed samples treated with lower voltage showed lower drip loss and higher water holding capacity.

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