Fresh shrimp freeze-sleeping technology

Abstract

The invention relates to a fresh shrimp freeze-sleeping technology, which is characterized in that fresh shrimps are soaked in a freeze-sleeping solution, and temperature and microwave radiation intensity are adjusted to carry out a freeze-sleeping operation, so that the diameter of ice crystals in cells of the fresh shrimps is less than 20 microns, and the technology specifically comprises three steps. The freeze-sleeping solution is prepared by mixing a mixed solution A, a mixed solution B and a mixed solution C, the mixed solution A contains ethanol, sodium chloride and water, the mixed solution B contains ethanol, water, trehalose, tannin and hydroxyethyl cellulose; and the mixed solution C contains Maranta arundinacea L-auct. Nen Lour, the extract thereof, ethanol and water. The freeze-sleeping solution used in the freeze-sleeping technology takes the ethanol as a main raw material, so that the freeze-sleeping solution is prevented from freezing at a low temperature, meanwhile, through a synergetic anti-freezing function of the trehalose, the hydroxyethyl cellulose, the tannin and the Maranta arundinacea L-auct. Nen Lour extract, the fresh shrimps are protected from protein freeze denaturalization, meanwhile, the Maranta arundinacea L-auct. Nen Lour extract contains colloids, the colloids can form protective films on the surfaces of the fresh shrimps to prevent oxidation, and therefore, flavors and nutrients are ensured.

Description

technical field [0001] The invention relates to the technical field of fresh shrimp freezing, in particular to a fresh shrimp freezing technology. Background technique [0002] Freezing technology uses low temperature and ultra-low temperature technology to directly contact the frozen objects through the freezing liquid as the refrigerant. The frozen objects such as aquatic products, meat, fruits and vegetables are directly frozen and kept fresh in the freezing liquid within 6 minutes to 30 minutes. , the cell membrane of the frozen object has not been cracked by freezing. [0003] Shrimp is rich in nutrients such as protein and calcium. Therefore, shrimp is rich in nutrients and its meat is soft and easy to digest. It is a food for people who are weak and need to be nursed after illness. Shrimp is rich in magnesium. Magnesium has an important regulating effect on heart activity and can protect the cardiovascular system. It can reduce blood cholesterol levels, prevent arter...

AI Technical Summary

Problems solved by technology

Under the action of microorganisms and enzymes after harvesting, the protein, amino acid and other components inside the fresh shrimp are easy to decompose, resulting in the deterioration of the quality and nutritional value of the fresh shrimp

[0004] However, the freezing liquid of the freezing sleep process in the prior art is only ethanol and water. Although the freezing effect of the freezing sleep is better than that of the traditional freezing, the rapid freezing in the actual operation process will also cause the decomposition of a small part of the protein and amino acids in the freezing sleep. , affecting the quality of fresh shrimp

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