A multi-layer ice
glazing method for frozen
shrimp meat comprises steps as follows: 1) preparation of a first-layer ice
glazing liquid: the
mass concentration of NaCl is 0.04%-0.08%, the
mass concentration of
sodium alginate
oligosaccharide is 0.5%-1.0%, and the
mass concentration of
lactitol is 0.4%-0.8%; the temperature of the first-layer ice
glazing solution is controlled to be in a range of 0.2-0.8 DEG C, and
shrimp meat is completely immersed for 3-7 s and then glazed with first-layer ice
glaze according to conventional operation; preparation of a second-layer ice glazing solution; the mass concentration of
sodium citrate is 0.05%-0.09%, the mass concentration of k-
carrageenan is 0.01%-0.04%, the mass concentration of
carboxymethyl cellulose is 0.05%-0.08% and the mass concentration of L-
sodium ascorbate is 0.1%-0.3%; the temperature of the second-layer ice glazing solution is controlled to be in a range of 0.6-1.2 DEG C, the
shrimp meat with the first-layer ice
glaze is immersed into the second-layer ice glazing solution for 5-10 s and glazed with second-layer ice
glaze according to conventional operation. The process is simple and safe and efficient to use, ice glaze
cracking can be effectively prevented,
microorganism growth is controlled, the product storage time is effectively prolonged, the total weight of ice glaze is only 8%-11% of the
wet weight of the product, and the rights of consumers are protected.