Acoustic thawing of frozen food

Details Acoustic thawing of frozen food Acoustic thawing of frozen food

1982-04-22

1984-08-07

Yeung, George

Food or edible material: processes, compositions, and products

Direct application of electrical or wave energy to food...

Involving wave energy of the sonic or pulsating type

99451, 426524, 426643, A23L 330

Patent

active

044644019

ABSTRACT:
The thawing time of frozen block fish is shortened by immersing the frozen block fish in a water bath at a maximum temperature of about 10.degree. C. and subjecting the frozen fish to a maximum of about 6 watts of acoustic power having a frequency equal to the relaxation frequency of the polycrystalline ice in the frozen fish and less than 10 kHz, thereby quickly thawing the ice without heating the thawed fish flesh.

REFERENCES:
patent: 3846565 (1974-11-01), Rosenberg et al.
Wells, "Biomedical Ultrasonics", Academic Press, 1977, pp. 120-129.
Blitz, "Fundamentals of Ultrasonics", N.Y. Plenum Press, 1967, pp. 20-23.
Brody et al., "Ultrasonic Defrosting of Frozen Foods", Food Technology, F 1959, pp. 109-112.
Nelson et al., Fishery Market News Report, No. SD-3, issued Jan. 7, 1981, by the National Marine Fisheries Service, NOAA, U.S. Dept. of Commerce.
Kissam et al., "Water-Thawing of Fish Using Low Frequency Acoustics", Journal of Food Science, vol. 47, (1981), pp. 71-75.

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