JPH0625156A - Achromatic color product of beta-carotene and its production - Google Patents

Abstract

PURPOSE:To obtain the subject compound excellent in water dispersibility and useful in a wide use range such as foods. medicines and cosmetics by adding a complementary color pigment to the cyclodextrin clathrate of beta-carotene. CONSTITUTION:A cyclodextrin solution is mixed with an oily beta-carotene, and subsequently stirred by the use of a homomixer, etc., at a high rate under the control of the stirring condition to obtain a clathrate reduced in its chroma. In order to further reduce the chroma, the complementary color pigment of the clathrate is added to obtain the achromatic product of the beta-carotene. Even when the achromatic beta-carotene is added to foods, medicines, etc., the original colors of foods, etc., are not deteriorated, and medicines, etc., are excessively not colored. Thereby, the utilization range of the achromatic beta-carotene can be expanded, and the achromatic beta-carotene deteriorates the flavors of the foods, etc., because the characteristic flavor of the beta-carotene is masked.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an achromatic β-carotene and a method for producing the same.

[0002] β-carotene has been widely used as a yellow pigment in foods and the like, but since the conventional β-carotene preparation is yellow in itself, the range and amount of food to be added are naturally limited. In contrast to the limitation, the β-carotene achromatic substance according to the present invention does not color the food to be added yellow, so that the range of application can be expanded. Further, the β-carotene achromatic product according to the present invention also has the characteristics that the dispersibility in an aqueous system is good and the flavor peculiar to β-carotene is masked.

Further, β-carotene has applications as a provitamin A agent and an antioxidant, but according to the achromatic product β-carotene of the present invention, an achromatic provitamin A agent and an antioxidant are used. Can also be prepared. Furthermore, β-carotene has an anti-cancer effect, and is particularly effective in preventing lung cancer and also has an immunostimulatory effect, but according to the present invention, an achromatic anticancer agent and an immunostimulant are also prepared. Therefore, the present invention plays an important role in various industrial fields such as food and drink, pharmaceuticals, and cosmetics.

[0004]

BACKGROUND ART β-Carotene is one of carotenoids and is known to have a yellow color ("Kagaku Daijiten 2" Kyoritsu Shuppan, Sho 42-9-10, p.606). A β-carotene preparation using a surfactant is also commercially available (JP-A-62-267261), but this commercially available β-carotene exhibits a strong yellow color in an aqueous system. Of course, the flavor peculiar to β-carotene is not masked.

[0005]

These known β-carotene products described above exhibit a yellow color when dispersed in an aqueous system, and have a high degree of coloring, and the masking of the flavor peculiar to β-carotene is not sufficient. Since it is not available, the range of use and the amount added are limited.

[0006] As described above, β-carotene having a small saturation and sufficiently masking the peculiar taste of β-carotene so as not to disturb the original color of the food to be added when dispersed in an aqueous system The product has never been known so far, and the present invention aims to develop such an achromatic β-carotene product.

[0007]

The present invention has been made in order to achieve the above-mentioned object, and as a result of examinations from various fields, it was found that the inclusion treatment with cyclodextrin (hereinafter sometimes referred to as CD) was performed. As a result of paying attention and further research, the present invention has been completed. Therefore, the achromatic product of β-carotene according to the present invention, even when added to foods and pharmaceuticals, does not spoil the original color tone of foods and does not excessively color pharmaceuticals, etc. Since it can be widely used in various products, and the addition amount can be significantly increased, it is possible to significantly increase the amount of β-carotene fortified or its content. Is. Hereinafter, the present invention will be described in detail.

In the practice of the present invention, β-carotene is clathrated with cyclodextrin.
Use cyclodextrin (including branched α-cyclodextrin). Thus, α-cyclodextrin is most suitable for the cyclodextrin used in the present invention, but any substance containing α-cyclodextrin may be used, for example, CD starch syrup or the like may be used as it is. Is also possible.

In the present invention, the method for producing the clathrate does not use the saturated aqueous solution method or the kneading method, which is a well-known conventional method, but uses a cyclodextrin solution and an oily β.
-Carotene is rapidly stirred with a high-speed stirrer such as a homomixer for a relatively short time.

More specifically, the method for producing an inclusion complex according to the present invention is characterized in that an oily β-carotene is added to a cyclodextrin solution having an arbitrary concentration, preferably a solution having a concentration as high as possible (the concentration may be higher than the saturation concentration). Is added in an appropriate amount and stirred at high speed with a homomixer or the like. As the CD solution, an aqueous solution is used, but an aqueous solution further added with an alcohol such as methanol, ethanol, propanol or the like, or an organic solvent which does not dissolve β-carotene such as acetone or ketone may be used. In the present invention, β-
Since there is a limit to the amount of cyclodextrin that can be included in the appropriate amount of carotene, it is necessary to keep it within that limit (for 1 kg of α-CD, β-carotene 0.
A suitable amount is 5 to 15 g, more preferably 6 to 10 g).

One of the more remarkable features of the present invention is that the saturation can be controlled by controlling the stirring conditions. Comparing the conditions in which the stirring speed is relatively high and the conditions in which the stirring speed is slow, when the clathrate is dispersed in the water system, the saturation is generally smaller in the latter than in the former. Therefore, in the present invention, the saturation is reduced by encapsulating β-carotene with CD, but at that time, the saturation is further reduced by relatively slowing the stirring speed.

However, the β thus prepared
The CD inclusion of carotene is certainly less saturated than the conventional β-carotene preparation,
Not achromatic.

In order to limit this point, as a result of earnest research, as a result of paying attention to the complementary color, and adding and mixing a pigment having a complementary color to the color tone of the CD inclusion of β-carotene,
Furthermore, it was confirmed that the saturation became smaller and the color became almost achromatic. That is, the present invention not only reduces the color saturation by encapsulating β-carotene with CD but also corresponds to a color complementary to the color tone of the CD inclusion of β-carotene in order to further reduce the color saturation. A major feature is that even an achromatic color can be manufactured by adding a dye.

FIG. 1 shows a commercially available β-carotene preparation, a CD clathrate and a CD clathrate (β-
Carotene concentration 2mg / 100ml, 4mg / 100m
1) was dispersed in water and the chroma was measured using a color difference meter (Tokyo Denshoku Co., Ltd .: MODEL TC-1500MC-88). The results are shown (UCS chromaticity diagram). As shown in FIG. 1, compared to the commercially available β-carotene preparation, the CD inclusion of β-carotene had a saturation of about 40%, and the CD inclusion of β-carotene was supplemented with a dye corresponding to a complementary color. It is confirmed that the addition further reduces the saturation to about 17%, which greatly reduces the saturation and makes it close to an achromatic color.

As described above, according to the present invention, oily β
-Almost achromatic β-carotene is obtained by the two-step treatment of inclusion of carotene with CD and addition of a complementary color dye. Further, the product thus obtained can be prepared in any state of powder, liquid and paste, and can be selected according to the form of the food to be added, and the dispersibility in the water system is It also has the characteristics that it is good and the flavor peculiar to β-carotene is masked.

The CD inclusion of β-carotene is generally yellow to
Since it exhibits a red color, in the present invention, the type and blending amount of the dye may be appropriately determined so as to correspond to the complementary color of these colors, and the required amount of the blue-green dye may be used. As the dye, synthetic and / or natural dyes can be appropriately used.

Examples of the present invention will be described below.

[0018]

Example 1 400 g of cyclodextrin powder containing about 30% of α-cyclodextrin and 600 g of water were mixed well, 800 mg of β-carotene was added, and the mixture was stirred at high speed for about 10 minutes with a homomixer. At this time, 3000 rpm
When stirred under moderate conditions, the clathrate exhibits a red color when dispersed in an aqueous system. Regarding the color saturation at this time, the clathrate obtained by stirring under the condition of about 3000 rpm is about one-third as compared with the conventional β-carotene preparation. A β-carotene CD inclusion thus obtained is added and mixed with a blue-green edible dye corresponding to a complementary color until a complementary color relationship is established. The obtained paste-colored β-carotene achromatic substance also had a paste-like form and exhibited a saturation of about 1/5 or less of that of a commercially available β-carotene preparation, and it was dried and powdered. It can be formed into a shape, and can be used for various purposes and in a large amount.

[0019]

Industrial Applicability The cyclodextrin inclusion complex of β-carotene of the present invention can be prepared in any final form of liquid, paste and powder, and should be selected according to the form of the food or drug to be added. You can The clathrate of the present invention is excellent in dispersibility in an aqueous system and has a saturation of zero or very small, and thus can be widely used for various applications.

For example, since the achromatic product of β-carotene according to the present invention does not exhibit the yellow color which β-carotene originally has, a large amount of β-carotene can be obtained without coloring foods, pharmaceuticals and the like.
Not only can it be fortified with carotene, but it can also be used as an achromatic provitamin A agent, antioxidant, anticancer agent and the like. Furthermore, in any case when it is used as a fortifier, a provitamin A agent, an antioxidant, etc., the flavor peculiar to β-carotene is masked, so that the flavor of the food to be added is not damaged. .

[Brief description of drawings]

FIG. 1 is a comparison chart of chroma between a commercially available β-carotene preparation and an achromatic product of β-carotene according to the present invention.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Megumi Komatsu 1-21-3, Sakaemachi, Higashimurayama, Tokyo Meiji Dairy Co., Ltd. Central Research Laboratory (72) Ryoro Yamamoto 1-21, Sakaemachi, Higashimurayama, Tokyo No. 3 Meiji Dairy Co., Ltd. Central Research Institute

Claims (2)

[Claims] 1. An achromatic product of β-carotene having good dispersibility in an aqueous system, which is obtained by adding a complementary colorant to a cyclodextrin inclusion product of β-carotene. 2. A clathrate having low chroma is prepared by adding oily β-carotene to a cyclodextrin solution containing α-cyclodextrin and controlling stirring conditions to further reduce the chroma. A method for producing an achromatic product of β-carotene, which comprises adding a complementary color dye to the clathrate.