JPS6039302B2 - Betacyanin pigment preparation - Google Patents

Description

[Detailed description of the invention] This invention relates to natural pigment betacyanin,
The purpose of this study is to obtain a stable pigment preparation that improves the poor light resistance and heat resistance, which are the drawbacks of the same pigment.

Betacyanin is a red pigment found only in plants of the Centroconales order, and among them, betacyanin is present in the roots of the edible plant red beet.
Since it is not found to be toxic, it is widely used as a natural food coloring agent.

Although betacyanin exhibits a beautiful red color with a slight purplish tinge at pH 3.5 to 7 and is stable in color tone, it has a serious drawback as a coloring agent in that it has poor light resistance and heat resistance. Moreover, this drawback is further exacerbated when the pH drops to 3.5 or lower, which is common in foods. In order to compensate for this drawback, many findings have been published regarding the combination of antioxidants and sequestering agents. This invention improves the shortcomings of these conventional findings, and the key point is that betacyanin is combined with the antioxidant L-ascorbic acids, sequestering agents, phosphates, and flavonols. The effect is further increased synergistically than when these two are used alone or in combination, making it industrially advantageous.

Here, betacyanin refers to dried products, extracts, and dried extracted pigments of red beets and other edible plants containing this pigment (e.g., vines, etc.), or obtained from extracts by enzyme treatment, resin treatment, etc. A pigment.

When the food to be colored is a water-containing substance, L-ascorbic acids, phosphates, and flavonols are added to a system colored with betacyanin to homogenize it, or added to a food system containing betacyanin. It goes without saying that the same effect can be obtained even if the mixture is homogenized by adding .

Examples of L-ascorbic acids as antioxidants include L-ascorbic acid, erythorbic acid, and salts thereof.

Phosphates of metal ion sequestering agents include phosphates, polyphosphates, metaphosphates, pyrophosphates, and the like. Flavonol substances include rutin, morin,
Examples include quercetin.

The ratio of these three substances to betacyanin is not particularly limited, but examples of those often used are as follows.

Betacyanin (color value 10% E2 deodorization calculation) 100taL
-Ascorbic acids 3-10 talinates
3-109 flavonol compounds
0.1 to 0.5 days (The color value of betacyanin is based on the method for measuring the color value of beet red pigment according to the voluntary standards of the Japan Federation of Food Additives Associations.

The hue E620 corresponds to a concentration of 0.18% (by weight, the same applies hereinafter) of betacyanin. ) The principle of addition of the three substances is homogeneous addition.

Hereinafter, the effects of this invention will be explained in detail with reference to Examples.
Example 1. The three substances were added to a rice bran solution containing 0.3% citric acid and 13% granulated sugar in the proportions shown in the table below, and the dye residual rates were compared after irradiation with sunlight at 50 Langley and heat treatment at 80q0 for 20 minutes. .

(Results) The absorbance of the starting sample was set as 100, and the residual rate of the dye (indicated by * in the table above) was expressed as a ratio to the absorbance of the sample after treatment.

The color column was not measured because most of the redness had disappeared.

(Oroyama constant wavelength 535 nm, using ion-exchanged water) From this result, when adding sodium L-ascorbic acid, phosphate, and further rutin and morin, the residual rate of the pigment increased to about 2 in terms of light resistance.
It was found that the heat resistance increased by 5 to 10%. Example 2. As a result of examining the amount of rutin used, the following results were obtained.

(Result) The effect of adding rutin is significant in terms of light resistance.

Example Study on L-ascorbic acid, erythorbic acid, sodium L-ascorbic acid, and sodium erythorbate (results), which are L-ascorbic acid-based substances (Results) Control, i.e. beet red pigment without addition, was added to 0.3% citric acid at 95°C.
Although the red color almost disappears even after cooling after reaching the temperature, all of the products of this invention showed a dye residual rate of 70 to 73%.

This material was heated again in the same way, and it was still 50%
% or more. There was also almost no difference in light resistance among the ascorbic acids. Example 4. Powdered beet red pigment as contrast steel 90.0% 90.0%L
-Ascorbic acid 5.0% 5.0* Sodium hexametaphosphate 4.5% 5.0%
A preparation prepared by mixing 0.5% Chin in powder was added at a concentration of 1% to an alcoholic beverage containing 25% alcohol and 25% granulated sugar to obtain the following stability.

The sample was sealed in a 200ml bottle and irradiated with ultraviolet rays for 7 hours and 14 hours in a light resistance tester equipped with a 15W fluorescent lamp. Although the powdered beet red pigment had already almost lost its red color after 7 hours of irradiation, the present invention maintained its beautiful red color even after 144 hours.

Example 5. After dissolving sodium L-ascorbic acid and sodium hexametaphosphate in liquid betacyanin having a color value of 10% E40, a glycerin solution in which rutin was dissolved was separately added, and the mixture was filtered through an azusa furnace.

This furnace liquid was sterilized at 60 qo to obtain a liquid preparation. The following results were obtained regarding this product. As a control, thighs with the following formulation were used. (Results) Stability of the formulation A hot water solution of 2% applied agar and 70 q○ was added to the above self-pigment preparation.
．． Add 25% and after homogenizing the ropes, put it in a mold and let it cool and solidify.
I left it by the window for 3 days.

Example 6. Beetroot raw material powder 325 ml was passed through a coarse extraction furnace together with water, and the resulting furnace liquid was purified using an adsorption resin Hp20.

Claims (1)

[Claims] 1 Betacyanin and L-ascorbic acid-based oxidizing agent,
A stable betacyanin pigment preparation characterized by the combined use of three types of phosphates and flavonol substances.