Freshness of the fish meat and the internal organs the nitrogen gas charging ice, the nitrogen gas charging ice production device, nitrogen gas charging ice production manner, the fresh fish

摘要

PROBLEM TO BE SOLVED: To provide ice capable of reducing oxidization, and its manufacturing device and method.;SOLUTION: A nitrogen gas is dissolved in water, and the water reduced in dissolved oxygen is frozen. This nitrogen gas-filled ice making device is composed of a nitrogen gas extractor extracting nitrogen gas in the atmospheric air, a nitrogen gas dissolving apparatus for mixing the nitrogen gas extracted from the nitrogen gas extractor with the water, and an ice making machine for freezing the nitrogen gas-dissolved water produced by the nitrogen gas dissolving apparatus. This nitrogen gas-filled ice making method is composed of a nitrogen gas extracting step for extracting a nitrogen gas, a nitrogen gas dissolving step for mixing the nitrogen gas extracted in the nitrogen gas extracting step, with the water, and an ice making step for freezing the nitrogen gas-dissolved water produced in the nitrogen gas dissolving step.;COPYRIGHT: (C)2007,JPO&INPIT