JP2001294767A - Coloring composition and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coloring composition containing a red natural pigment which is stable to heat and light and, simultaneously, has high safety. SOLUTION: A dye included in stock to be obtained by simmering treatment of a cephalopod is used as the effective component of the coloring composition. Further, the coloring composition can be obtained by subjecting a cephalopod to simmering treatment to obtain stock and desalting the resulting stock.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a coloring composition containing omochrome derived from cephalopods such as octopus and squid, and a method for producing the same.

[0002]

2. Description of the Related Art One of the methods for coloring foods such as beverages and confectionery in red or magenta is as follows.
No. 1 is a tar-based synthetic colorant. Further, as a chemical coloring method, a method of treating taraco with sodium nitrite to form a color is known.

[0003] However, the amount and residual ratio of synthetic colorants and chemical color formers are strictly regulated from the viewpoint of safety to the human body. The tendency to use natural pigments is increasing year by year.

[0004] Natural red dyes include red cabbage dye (Japanese Patent Application Laid-Open No. 61-97362) and red koji dye (Japanese Patent Application Laid-Open No.
233669), gardenia red pigment and the like are widely used.

[0005]

However, there is a problem that natural dyes generally have poor stability and are easily discolored by heat, light and pH.

[0006] For this reason, various methods have been proposed for preventing the fading of natural pigments. For example, a method of preventing discoloration by using a combination of natural dyes and rutin, quercetin, phytic acid, and polyphenols is known. There was a need to search for natural dyes that are stable to light and to put them into practical use.

Accordingly, an object of the present invention is to provide a coloring composition containing a red-based natural pigment which is stable to heat and light and has high safety, and a method for producing the same.

[0008]

Means for Solving the Problems In order to achieve the above object, the coloring composition of the present invention is characterized in that it contains, as an active ingredient, a coloring matter contained in a broth obtained by ripening cephalopods. I do.

[0009] The method for producing a coloring composition of the present invention is characterized by comprising a step of boiling cephalopods to obtain a broth thereof, and a step of desalting the broth.

According to the present invention, heat and light are stable, and
It is possible to provide a coloring composition containing a highly safe red-based natural pigment. In addition, boiled juice discharged in a large amount when octopus, squid and the like are boiled can be effectively used.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION On the body surface of cephalopods such as octopus and squid, phenoxazone derivative omochrome
chrome) is distributed. Omochrome is present in the form of granules in cells and may be bound to proteins. When the octopus and squid are heated, they become reddish purple,
This phenomenon is thought to be due to the diffusion of granules and the release of pigment from thermally denatured proteins, rather than the elution of omochrome by heating under alkaline or acidic conditions. (Masahiro Hata: Aquatic Products Chemistry (Edited by Katsumi Yamaguchi), pp. 107-110, University of Tokyo Press (1991)).

The pigment contained in the broth obtained by boiling cephalopods, which is an active ingredient of the coloring composition of the present invention, includes various pigments such as decomposed products of omochrome in addition to the above-mentioned omochrome. It is considered that a component is contained. The coloring composition of the present invention may include all of these coloring components, or may be purified to include omochrome and the like with higher purity.

The coloring composition of the present invention can be obtained, for example, as follows. 1-100 parts by weight of water is added to 1 part by weight of cephalopods from which dirt and slime on the body surface have been removed, and the mixture is boiled for 10 minutes to 5 hours to obtain a broth.

The cephalopods used as raw materials include squid and octopus. In the present invention, octopus is particularly preferably used. Therefore, in the present invention, it is possible to use the broth of the ripening treatment which is usually discharged when processing the octopus.

The above-mentioned broth may be used as it is, or may be appropriately concentrated by vacuum concentration or reverse osmosis membrane concentration, or may be freeze-dried or spray-dried as necessary to obtain a liquid, paste-like or powdery colored composition. It can be. In addition, since the broth contains a salt, in the present invention, the boiled juice is desalted by electrodialysis or the like, and then it is preferable to similarly form a liquid, or paste-like or powdery colored composition. .

Further, if necessary, the desalted broth can be subjected to a column treatment to purify the dye.

The coloring composition of the present invention is stable to heat and light and has high safety because it is derived from natural products, and can be used as a red coloring agent in various foods and cosmetics. The food is not particularly limited as long as it is desired to be colored red, and examples thereof include strawberry-flavored drinks, jellies, seasonings, and tablet confections. In addition, examples of cosmetics include lipstick, eye shadow, nail polish, and the like.

[0018]

The present invention will be specifically described below with reference to examples. Example 1 Purification of Dye 1L per 1kg of octopus from which visceral organs, black ink and body surface are removed
Add water and boil to obtain a broth containing reddish brown pigment,
The broth was electrodialyzed to remove salts.

When the maximum visible absorption of the dye contained in the broth was measured, it was found that the dye had an absorption at 494 nm as shown in FIG.

Next, the literature [Adele Bolognese: J. Hete
This dye was separated and purified according to the method described in Rocyclic Chem., 25, 1243-1246 (1988)]. That is, the desalted broth is applied to a carboxymethylcellulose column, and eluted with a mixed solution of butanol-acetic acid-water to obtain a solution.
A fraction having an absorbance of 94 nm was collected. The collected fraction was concentrated under reduced pressure to completely remove the solvent, dispersed in a small amount of water, and freeze-dried to obtain 320 mg of a red-brown pigment powder.

Example 2 Pigment stability test The broth containing reddish brown pigment was adjusted to pH 5, 7, and 9
Heat at 0 ° C. for 30 minutes and 1 hour. The heated broth was cooled, and the result of measuring the absorbance at 494 nm is shown in FIG.

From FIG. 2, it can be seen that the color tone does not change in neutral (pH 7) and alkaline (pH 9), and is extremely stable to heat. Under acidic conditions (pH 5), the absorbance decreased by 23%, and slight fading was confirmed.

Further, the broth adjusted to pH 7 was left under fluorescent light at room temperature for 3 months, and it was found that there was almost no change in color tone and the stability to light was excellent.

Example 3 A reddish-brown beverage was produced according to the formulation shown in Table 1 by a conventional method. This beverage had a beautiful reddish-brown color.

[0025]

[Table 1]

Example 4 Strawberry-flavored jelly was produced according to a conventional method with the composition shown in Table 2. This jelly had a beautiful reddish-brown color and matched well with the strawberry flavor.

[0027]

[Table 2]

[0028]

As described above, according to the present invention,
A red-based coloring composition that is stable to heat and light and has high safety can be provided.

Further, according to the method for producing a colored composition of the present invention, a large amount of broth discharged during ripening of octopus, squid and the like can be used, so that it can be produced at low cost. it can.

[Brief description of the drawings]

FIG. 1 is a chart showing the results of measuring the absorbance of a dye contained in a broth obtained by ripening an octopus.

FIG. 2 is a table showing the results of measuring the pH and heat stability of a pigment contained in a broth obtained by ripening an octopus.

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Claims (3)

[Claims] 1. A coloring composition comprising, as an active ingredient, a coloring matter contained in a broth obtained by ripening cephalopods. 2. The coloring composition according to claim 1, wherein the dye is omochrome. 3. A method for producing a coloring composition, comprising: a step of boiling cephalopods to obtain a broth thereof; and a step of desalting the broth.