Method for improving, by using power-variable ultrasonic waves, frozen fish fillets treated by means of salt-water immersion process

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United States of America Patent

PATENT NO 9497976
APP PUB NO 20160050945A1
SERIAL NO

14780861

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Abstract

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A method for improving frozen fish fillets treated by way of a salt-water immersion process includes the following steps: pretreating raw fish to obtain fish fillets; precooling the fish fillets; stacking the precooled fish fillets to obtain a fish fillet stack; freezing the fish fillet stack by using a salt-water immersion process, and performing power-variable ultrasonic wave treatment; and feeding the fish fillets into a cold storage, and performing freezing storage at minus 18 degrees centigrade. The power-variable ultrasonic wave treatment includes: firstly treating for 5 to 10 min under the power of 800 to 600 W, and then changing the power to 200 to 600 W for treating for 5 to 15 min. The freezing time of fish flesh is shortened, and formed ice crystals are fine and uniform, thereby preventing the damage of the formed ice crystals to cell walls.

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Patent Owner(s)

  • SOUTH CHINA UNIVERSITY OF TECHNOLOGY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gao, Wenhong Guangzhou, CN 3 13
Hu, Fen Guangzhou, CN 4 8
Sun, Dawen Guangzhou, CN 11 8
Wang, Qijun Guangzhou, CN 6 2
Zeng, Xin'an Guangzhou, CN 5 2

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