Air conditioned fresh-keeping method for pseudosciaena crocea

Abstract

The invention discloses a packaging method for refreshing large yellow croaker through controlled atmosphere. The method comprises: (1) killing, dissecting, removing internal organs of the fish, washing, and drip-dring, (2) mixing gases with a gas proportion mixer, vacuumizing with a multifunctional controlled atmosphere packaging machine for 3-10s, aerating for 1-5s, and sealing at 110DEG C-150DEG C, and (3) cold-storing at 0DEG C-4DEG C. Controlled atmosphere adopts CO2 and N2, and takes random ratio at a volume scope of CO2 10-80% and N2 10-90%. In the controlled atmosphere packaging, aerating 1ml-3ml / g yellow croaker. The invention can prolong shelf period obviously, ensure product quality, and is easy operation.

Description

technical field [0001] The invention belongs to the technical field of food processing, and relates to a fresh-keeping method for large yellow croakers, in particular to a method for keeping fresh-keeping large yellow croakers with high fat content by controlled atmosphere. Background technique [0002] With the improvement of the environment of my country's socialist market economy and the improvement of people's living standards, since the 1990s, my country's fishery economy has entered a period of rapid development. Since 1990, the output of aquatic products in my country has ranked first in the world for 16 consecutive years. In 1996, the output of aquatic products reached 28.13 million tons, accounting for about 1 / 4 of the world's total aquatic products, of which the output of marine products accounted for 57%. In 2000, the total output of aquatic products reached 42.7899 million tons, accounting for about 30% of the world's total aquatic products. In 2004, the output ...

AI Technical Summary

Problems solved by technology

[0005] At present, there are two main fresh-keeping methods for large yellow croaker: frozen fresh-keeping and ice-stored fresh-keeping. The disadvantage of the former is that it will cause freezing denaturation of the protein and lead to a decrease in quality, while the latter has a short shelf life.

How to effectively prolong the fresh-keeping period of ice storage method, the predecessors have done a lot of research, the usual way is to add chemical substances such as preservatives, bactericides, antioxidants, antibiotics, etc. in the process of ice storage, but due to The problem of antibiotic residues in aquatic products and bacterial resistance has emerged, which reduces the application value from the perspective of public health [58] , and chemical preservation can not meet the modern people's increasingly higher requirements for food safety

Images