Cultured large yellow croaker superhigh pressure degreasing preservation method

Abstract

The invention discloses a cultured large yellow croaker superhigh pressure degreasing preservation method which comprises the following steps: 1) raw material pretreatment; 2) cleaning; 3) draining: draining at normal temperature or air-drying moisture on the fish body surface; 4) packaging; 5) superhigh pressure treatment; 6) lye rinsing; 7) draining; air-drying rinsed large yellow croaker; and 8) packaging and refrigeration. The method provided by the invention has high degreasing rate, can be adopted to effectively improve local flavor and mouthfeel of large yellow croaker, and is beneficial to raise quality of the cultured large yellow croaker product.

Description

technical field [0001] The invention relates to an ultra-high pressure degreasing and fresh-keeping method for cultured large yellow croaker, in particular to an ultra-high-pressure degreasing and fresh-keeping method for cultured large yellow croaker. Background technique [0002] Some economic fish products in aquatic products are of great significance to economic development. large yellow croaker Pseudosciaena crocea (Large Yellow croaker) Commonly known as cucumber fish, large yellow croaker, etc., because of its tender and delicious meat, high protein, low sterol, and the functions of treating anemia, nourishing, and improving the body, it has become the best among seawater fish, and is deeply loved by consumers at home and abroad. of favor. Large yellow croaker is a wide-temperature and wide-salt group migratory fish with a wide range of food habits, and inhabits the middle and lower layers of the offshore water within 60 meters. Widely distributed in the southern Y...

AI Technical Summary

Problems solved by technology

Alkaline method uses Na 2 CO 3 Or NaOH makes the oil generate soap salt to achieve the purpose of removing the oil, which has an alkaline taste and is unsafe. The enzymatic method uses lipase to specifically act on the ester bond of the oil ester to hydrolyze the oil into glycerin and fatty acids, which can be removed after formation. For fat purpose, there are disadvantages of long processing time and soft meat

CO 2 Supercritical fluid extraction using CO 2 The solubility drops sharply and the solute (fat, etc.) is precipitated, so as to achieve the purpose of degreasing, but there are disadvantages such as taste, texture change, and muscle tissue breakage

However, the traditional processing methods of aquatic products such as large yellow croaker will denature proteins by destroying non-covalent bonds, and at the same time destroy covalent bonds to cause qualitative changes in low-molecular substances such as vitamins, pigments and flavor substances, resulting in the loss of a large number of nutrients and biologically active components.