Method for recovering protein from surimi-rinsing liquid based on low-temperature plasma technology

A method for recovering a protein from a surimi-rinsing liquid based on a low-temperature plasma technology, comprising the following steps:

• (1) collecting fish flesh, and chopping the fish flesh to obtain surimi;
• (2) preparation of the surimi-rinsing liquid:
• adding the surimi to water, mixing for rinsing, and centrifuging to collect a supernatant, which is the surimi-rinsing liquid;
• (3) low-temperature plasma treatment of the surimi-rinsing liquid:
• adjusting a parameter of a plasma device, comprising setting an input power to 300 W to 800 W;
• placing a spray gun of the plasma device below a liquid level of the surimi-rinsing liquid;
• turning on a power supply;
• and exciting plasma with air as a gas source, such that the plasma acts evenly on the surimi-rinsing liquid for 2 min to 6 min, to obtain a low-temperature plasma treated surimi-rinsing liquid;
• and
• (4) recovery of the protein:
• allowing the low-temperature plasma treated surimi-rinsing liquid to stand in an environment with a temperature of 10° C. or lower, and centrifuging to collect a precipitate, such that the recovery of the protein from the surimi-rinsing liquid is completed.