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Title:
METHOD FOR LENGTHENING SHELF LIFE OF PREPARED FISH HEAD AFTER PRE-FRYING PREPARED FISH HEAD IN CENTRAL KITCHEN
Document Type and Number:
WIPO Patent Application WO/2019/169808
Kind Code:
A1
Abstract:
A method for lengthening the shelf life of a prepared fish head after pre-frying the prepared fish head in a central kitchen. The method comprises the following main steps: carrying out an ultrasonic-assisted antioxidant immersion treatment and variable-frequency ultrasonic-assisted vacuum frying on a fresh fish head after the fresh fish head is treated in a composite deodorization solution, and then spraying a natural antioxidant compound onto the surface of the fish head, and immediately chilling the fish head below 30°C after carrying out modified atmosphere packaging, and then refrigerating same below 24°C and delivering same. By means of the method, after a fish head is pre-fried and prepared, the moisture content thereof drops and the fishy smell becomes less intense, and adding a natural antioxidant compound twice reduces the oxidation rate of grease in the fish head on the premise of ensuring the product safety, and filling with mixed inert gases during packaging and refrigeration also substantively reduces the possibility of microbial reproduction, so that the shelf life of the prepared fish head is lengthened from 7 days to 11 days.

Inventors:
ZHANG, Min (Administrative building, No.1800 Lihu AvenueWuxi, Jiangsu 2, 214122, CN)
SHI, Hao (Administrative building, No.1800 Lihu AvenueWuxi, Jiangsu 2, 214122, CN)
SUN, Lei (Administrative building, No.1800 Lihu AvenueWuxi, Jiangsu 2, 214122, CN)
CAO, Ping (Administrative building, No.1800 Lihu AvenueWuxi, Jiangsu 2, 214122, CN)
Application Number:
CN2018/093126
Publication Date:
September 12, 2019
Filing Date:
June 27, 2018
Export Citation:
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Assignee:
JIANGNAN UNIVERSITY (Administrative building, No.1800 Lihu AvenueWuxi, Jiangsu 2, 214122, CN)
YANGZHOU YECHUN FOOD PRODUCTION AND DISTRIBUTION INCORPORATED COMPANY (Yangzhou Yechun Food Production And Distribution Incorporated Company, No.10 Wugang Roa, Yangzhou Jiangsu 7, 225007, CN)
International Classes:
A23B4/20; A23B4/005; A23L5/20; A23L5/10; A23L5/30
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