JPH05308923A - Coloration and apparatus therefor - Google Patents

Abstract

PURPOSE:To stabilize and set the color tone by coloring a large amount of fresh foods composed mainly of raw fishes and raw meat to clear red in a short time without using a chemical substance as an additive. CONSTITUTION:Carbon monoxide is generated by incompletely burning a carbon- containing compound 1 accommodated in a tank 2 and the generated carbon monoxide is cooled up to room temperatures. A tank 7 is subsequently evacuated and a raw fish such as a tuna or raw meat is then put in the vacuumed tank 7. The carbon monoxide is introduced into the tank 7 so as to be brought into contact therewith. Thereby, the objective clear red color can be developed by a reaction between hemoglobin and carbon monoxide.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coloring method and a coloring device suitable for coloring raw meat, raw fish and the like.

[0002]

2. Description of the Related Art Conventionally, there have been two methods for coloring foods: a method of adding a colorant and a method of adding a color former. Among these, the method of adding a colorant is to add a colorant having a color to itself to an object for coloring, and the method of adding a color former is a color former having no color itself (for example, , Sodium nitrite, potassium nitrate, sodium nitrate, ferrous sulfate, etc.) are added to the object to act with the pigments in the food to fix, stabilize, or clarify the color tone.

[0003]

However, the method of adding a colorant is to add a colorant having a color that is not present in the object to be colored itself, so that the color tone of the material itself is made clear. Not a thing. Further, the addition of the color-developing agent causes the object itself to color, but the color-developing agent itself has many problems. That is, the currently used sodium nitrite, potassium nitrate and sodium nitrate have toxicity in themselves, and carcinogenicity is also a problem. Further, there is also a problem that the added color former remains on the object and remains in the body when ingested by the human body. Therefore, the object to be added is limited to processed meat and fish meat products and processed fish eggs, and the usage fee is strictly limited, and the permissible amount of use is very small. For this reason, it has been extremely difficult to color a fresh food such as raw fish such as tuna or fresh meat, which is large in quantity, in a short time.

[0004]

In order to solve such a problem, the color forming method according to the present invention is a method of adding a color former, which is a chemical substance, in order to color the object to be colored itself. Instead, the carbon monoxide, which is a gas generated by incomplete combustion of a compound containing carbon, is cooled to room temperature, and then the object to be colored is colored by touching the object to be colored in vacuum. The feature is to let.

Further, the color developing device according to the present invention comprises a device for incompletely burning a compound containing carbon to generate carbon monoxide, a cooling device for cooling the generated carbon monoxide to room temperature, and a vacuumed container. And a port for loading and unloading the carbon monoxide and the object to be colored, which is provided in the container.

[0006]

In such a coloring method and coloring device,
By touching the raw meat and raw fish containing hemoglobin with the carbon monoxide generated by the above method, a protein called hemoglobin in the coloration object binds with carbon monoxide, thereby producing a bright red color, which should be colored as an effect. The color tone of the object itself also produces a bright red color.

[0007]

EXAMPLE An example of a color forming method will be described below along with an explanation of an example of the color forming apparatus according to the present invention.

FIG. 1 schematically shows the color developing device. In this coloring apparatus, a carbon dioxide cylinder 3 and an oxygen cylinder 4 for incompletely burning the carbon-containing compound are connected to a container 2 containing a carbon-containing compound 1 such as coal, charcoal or coke. ..

Further, a container 2 containing a compound containing carbon
Is connected to a container 6 containing a carbon dioxide adsorbent (eg sodium hydroxide or activated carbon) 5, and the container 6 containing the carbon dioxide adsorbent 5 is further connected to a container 7 in which the inside of the container is evacuated. .. Further, the cooling device 8 is attached around the pipe through which the mixed gas containing carbon monoxide passes between the container 2 and the container 6.

The container 7 in which the inside of the container is evacuated has an opening 1 serving as an inlet 9 for carbon monoxide and an inlet / outlet port for the coloring object.
0 is provided, and the opening 10 is closed and opened by a lid 11.

In order to color fresh fish such as tuna with such a coloring device, oxygen and carbon dioxide are sent from a carbon dioxide cylinder 3 and an oxygen cylinder 4 into a container 2 containing a compound containing carbon, The compound 1 containing carbon is incompletely burned, the mixed gas of carbon dioxide and carbon monoxide generated here is cooled to room temperature by the cooling device 8, and then sent to the container 6 containing the carbon dioxide adsorbent 5, By removing the carbon dioxide and putting the tuna in the container 7, evacuating the inside of the container 7 and injecting the carbon monoxide into the container 7 and touching the tuna, the tuna becomes fresh. It develops red. As long as the tuna is about 1 cm thick, any size tuna will produce a bright red color in 60 minutes.

In order to further maintain the bright red color of the tuna that develops such a bright red color, if the tuna is placed in a vinyl vacuum pack and sealed, the bright red color will be retained for a long time.

[0013]

EFFECTS OF THE INVENTION According to the color forming method and the color forming apparatus according to the present invention, since it is not a means of adding a color forming agent, it is an object to be colored after color formation unlike the conventional method of adding a color forming agent which is a chemical substance. It is possible to avoid the situation where the color former remains on the object. In addition, since the means for contacting the object to be colored with carbon monoxide, which is a gas, is used, not only the effect that a large amount of the object to be colored can be colored at once, but also the object to be colored with the gas Since the reaction rate with hemoglobin contained in the product is fast, it is possible to develop color in a shorter time than the conventional method, and moreover,
The coloring result can also be made bright red. further,
Due to the bactericidal effect of carbon monoxide, bacteria such as Escherichia coli are removed from the object to be colored, and as a result, it is difficult to rot and the freshness is maintained for a long time. In addition, since the bond between carbon monoxide and hemoglobin is ten times stronger than that of oxygen and the like, raw meat and fish meat are less likely to discolor, and the bright red color is stable. The stability produces a remarkable effect that even raw meat and fish meat, which normally discolor in a day, does not discolor in 3 days.

[0014]

[Brief description of drawings]

FIG. 1 is a schematic view showing an example of a color forming apparatus of the present invention in a simplified manner.

[Explanation of symbols]

 1 Compound containing carbon 3 Carbon dioxide cylinder 4 Oxygen cylinder 5 Carbon dioxide adsorbent 7 Vessel with vacuum inside 8 Cooling device 10 Opening (inlet / outlet port)

Claims (2)

[Claims] 1. A coloring method comprising incompletely burning a compound containing carbon to generate carbon monoxide, cooling to room temperature, and then contacting the object to be colored in a vacuum. 2. A device for generating carbon monoxide by incompletely burning a compound containing carbon, a cooling device for cooling the generated carbon monoxide to room temperature, a vacuumed container, and a container provided in the container. And a carbon monoxide and an inlet / outlet port for an object to be colored.