JPH07143864A - Egg - Google Patents

Abstract

PURPOSE:To obtain an astaxanthin-containing egg having an antiaging-action, an antioxidizing action, a radical-catching action and an anticarcinogenic action, rich in the color of york, and useful for health, etc., by orally administering the astaxanthin into a hen for collecting the egg, and subsequently allowing the hen to lay the egg. CONSTITUTION:Astaxanthin comprising one or two kinds of composite materials selected from 3,3'-dihydroxy-BETA, BETA-carothene-4,4'-dione (stereoisomer), its fatty acid ester and its protein-bound product is orally administered into a hen for collecting an egg, and the hen is allowed to lay the egg, thus obtaining the objective astaxanthin-containing egg having an astaxanthin content of 0.1-100ppm in the york of the egg.

Description

Detailed Description of the Invention

[001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chicken egg containing astaxanthin which is a kind of carotenoid, and a method for producing the egg.

[002]

2. Description of the Related Art Astaxanthin has been already known in the following patents because it has been added to feed etc. as a color-raising agent for fish, shrimp and the like (JP-A-57-206342, JP-A-60-54647).

Further, astaxanthin has been attracting attention in recent years as one of high value-added nutrients because it has high antioxidant power, radical scavenging power, anti-aging effect, carcinogenesis suppressing effect, and orange coloring ability. It is being applied to cosmetics and the like (Japanese Patent Laid-Open No. 4-49091).

On the other hand, in recent years, an egg with a high concentration of a specific nutrient has been developed for the purpose of increasing the added value of the egg. For example, chicken eggs and vitamin E containing a high concentration of iodine
There is a chicken egg containing a high concentration of hen, but no egg containing astaxanthin has been developed so far.

By the way, in recent years, the price of chicken eggs has fallen, and in order to increase the added value of chicken eggs, there is a problem that the price of chicken eggs cannot be maintained only by adding a high concentration of iodine or vitamin E.

Further, in order to produce an egg containing iodine or vitamin E, there has been a problem that an expensive feed is required to be fed to the hen and the production cost becomes high. Therefore, in order to raise consumers' purchasing consciousness, it has been desired to develop an egg containing a high-value-added nutrient and having a low manufacturing cost.

[0097]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention An object of the present invention is to develop a chicken egg containing a nutrient having a high added value without increasing the production cost of the chicken egg.

[0085]

In view of such circumstances, the present inventors have found that when a feed containing astaxanthin is administered to an egg hen, a high concentration of astaxanthin is accumulated in the egg, and the present invention has been completed.

That is, the present invention provides a chicken egg having an increased added value by containing astaxanthin, which is one of carotenoids of nutrients useful for humans, and a method for producing the egg. Hereinafter, the present invention will be described in more detail.

Astaxanthin contained in the egg of the present invention is 3,3′-dihydroxy-β, β-carotene-
It consists of a single substance or a complex of two or more kinds selected from 4,4'-dione, its stereoisomer, its fatty acid ester, or its protein conjugate.

The stereoisomers of astaxanthin contained in the egg of the present invention include (3R, 3′R) -astaxanthin, (3R, 3 ′S) -astaxanthin, (3S,
3'S) -A simple substance selected from astaxanthin or 2
Composed of more than one kind of compound.

The fatty acid ester of astaxanthin contained in the chicken egg of the present invention is one in which a fatty acid is ester-bonded to one or two of the two hydroxyl groups of astaxanthin, astaxanthin palmitate, astaxanthin dipalmitate, astaxanthin acetate, astaxanthin diacetate. It is composed of a single substance or a composite of two or more types selected from astaxanthin fatty acid esters.

The protein conjugate of astaxanthin contained in the hen's egg of the present invention is not particularly limited as long as astaxanthin and protein are bound.

In the method for producing an astaxanthin-containing egg of the present invention, astaxanthin may be orally administered to a hen and the egg may be laid by a usual method.

As a method of oral administration, astaxanthin or a natural product containing it may be directly orally administered alone, but it may be mixed with the feed and mixed with the feed at the time of feeding.

Astaxanthin administered orally to hens is
Either synthetic astaxanthin or natural astaxanthin may be used. Examples of synthetic astaxanthin include Hoffmann
There are carophyll pink and the like manufactured by Roche, and examples of natural astaxanthin include astaxanthin-containing hematococcus green algae (manufactured by Micro Bioresorts, Argasan Red), astaxanthin-containing pafia yeast (Paffia rhizotima mirror), astaxanthin-containing krill ( (Aitarich) manufactured by Itano Frozen Co., Ltd., among others, and krill is particularly suitable for inexpensively producing a high-value-added astaxanthin-containing chicken egg.

The Haematococcus to be administered to a chicken that lays the hen's egg of the present invention is not particularly limited as long as it is a type that is safe for the human body and is capable of producing astaxanthin. Among them, those having a high astaxanthin accumulation concentration and available at low cost are more preferable. As an example, hematococcus pluvialis (h
aematococcus pluvialis), but is not particularly limited thereto.

Astaxanthin or a natural product containing it, which is to be administered to chickens laying eggs of the present invention, is usually a dry pulverized product thereof, and a carrier mixture is administered to them, but astaxanthin or its astaxanthin is retained in order to maintain the stability of astaxanthin in the feed. It is also possible to orally administer to chickens a mixture of the contained natural product with a coating agent such as gelatin and oils and fats, which is mixed with feed.

The amount of astaxanthin to be administered to chickens that lay eggs of the present invention will vary depending on the concentration of astaxanthin containing the astaxanthin, the weight of the hens to be laid, and the egg collection rate. Is mixed with the feed so that the amount becomes 0.1 to 1000 ppm, and the chicken is fed by the usual method.

Most of the astaxanthin of chicken eggs of the present invention is distributed in the egg yolk of chicken eggs, and the concentration thereof is in the range of 0.1 to 100 ppm based on the total weight of the chicken eggs.

Vitamin A and its derivatives, vitamin B, vitamin C and its derivatives, vitamin E and its derivatives, cysteine, together with astaxanthin to be administered to hens for the purpose of increasing the astaxanthin concentration of chicken eggs of the present invention, cysteine,
Glutathione, citric acid, phosphoric acid, polyphenols,
One or more antioxidants selected from existing antioxidants such as nucleic acids, inorganic substances or BHT can be added together.

[0222]

[Effect] The astaxanthin-containing egg of the present invention is rich in carotenoid, which is one of the nutrients useful for the human body, and astaxanthin has an antioxidant action, an antiaging action, a radical scavenging action, and a carcinogenesis inhibiting action. It contains high-value nutrients and the rich color of the yolk makes it possible to fully enhance the value of eggs.

[0233]

EXAMPLES The present invention will now be described in detail with reference to Examples and Comparative Examples, but the present invention is not limited thereto.

(1) Example 1 A feed for laying hens, to which krill powder containing astaxanthin was added according to the formulation shown in the test section of Table 1, was prepared to give 4 to 100 white Leghorn breeding hens 5 weeks old. The eggs were fed for 4 months and the eggs after 4 months were collected, and the quality of the eggs was investigated and shown in Table 2. For comparison, the quality of chicken eggs obtained by similarly growing and collecting chickens of the same species in the control diet except that only astaxanthin was removed from the feed of Table 1 was also summarized in Table 2. As a result, the egg yolk color of eggs collected from chickens fed with astaxanthin-containing feed is better than that in the control group, and the Hau unit and astaxanthin content in the test group are also high and the egg of the present invention contains astaxanthin. It was confirmed that the eggs were high quality.

[025]

[Table 1]

[026]

Front page continuation (72) Inventor Sumi Kajioka, 5th day, 19 Sumiyoshihama-cho, Higashinada-ku, Kobe-shi, Hyogo Inside the Central Research Laboratory, Wasa Sangyo Co., Ltd. (72) Inventor Akira Kajie, 5-19, Sumiyoshihama-cho, Higashinada-ku, Kobe Central Research Laboratory, Hiwa Sangyo Co., Ltd. (72) Inventor Osamu Suetsugu 3-3 Tsukamoto Dori, Hyogo-ku, Kobe-shi, Hyogo 18 Daiwa Kasei Co., Ltd.

Claims (3)

[Claims] 1. A chicken egg containing astaxanthin. 2. The chicken egg according to claim 1, wherein the astaxanthin content in the egg yolk of the egg is 0.1 ppm to 100 ppm. 3. A method for producing an astaxanthin-containing chicken egg, wherein the astaxanthin-containing chicken egg is laid by orally administering astaxanthin to a chicken.