JP4537761B2 - Tocotrienol-containing poultry eggs - Google Patents

Description

The present invention relates to a poultry egg containing tocotrienol and a method for producing the same. More specifically, the present invention relates to a poultry egg that is rich in tocotrienol, has an antioxidant action, and is low in lipid peroxide, and is obtained by feeding a tocotrienol-containing vegetable oil extract, particularly rice bran oil extract, as a feed. Is.

Since ancient times, rice bran has many B vitamins and minerals, and has been used as a feed for the purpose of supplementing poultry livestock. However, various functional substances have recently been discovered in rice bran and applied to health foods. The functionality of rice bran is not only for people but also for poultry livestock. However, no clear functional data has yet been obtained when rice bran and rice bran extract are used as feed for poultry livestock.

  On the other hand, poultry eggs and other poultry eggs are one of the most familiar protein sources on a daily basis. However, because of their high lipid content, there are some consumers who are jealous. Furthermore, the higher the lipid content, the higher the peroxide content. When a person ingests a peroxide, if it is abnormally high, diarrhea and fever occur, and even if these symptoms do not occur, it is accumulated in the body or peroxidizes to normal lipids. Accumulation increases and becomes an onset factor for arteriosclerosis and cancer.

  Techniques for producing functional eggs having an antioxidant effect by feeding feed to poultry have already been described in Japanese Patent Application Laid-Open Nos. 2003-52338 and 7-143864. The former gives cryptoxanthin to allow the poultry eggs to have an antioxidant effect, and the latter gives astaxanthin. Both are precursors of vitamin A. Vitamin A is known not only for deficiency but also for hypertension, and it is said that proper intake is difficult.

  Japanese Patent Application Laid-Open No. 8-308509 describes that a low-cholesterol egg is obtained when deodorized scum oil generated in a vegetable oil refining process is fed to poultry as feed. The inventors of JP-A-8-308509 consider that the component that lowers the cholesterol in eggs is a plant sterol contained in deodorized scum oil. It is said that deodorized scum oil contains tocopherol, but it does not describe tocotrienol at all and is completely out of consideration. Furthermore, there is no description as a plant raw material of rice bran which has been noted as containing a large amount of tocotrienol in the present invention.

Tocotrienol has recently been attracting attention for its strong antioxidant power, and it has been found that it suppresses arteriosclerosis and cancer. If a poultry egg high in tocotrienol is developed, it can be eaten in a form that is easier for humans to consume than rice bran, and its antioxidant action improves the quality of the egg and also eats the egg of the present invention. This is an epoch-making invention that leads to the improvement of human health.
JP 2003-52338 A JP-A-7-143864 JP-A-8-308509

An object of the present invention is to provide a chicken egg that can eat tocotrienol, which is difficult to ingest from other plants, in a form that is easy to ingest.

In order to solve the above problems, the present inventors have added various types of tocotrienol-containing vegetable oil extracts to poultry feeds, and have carefully studied and examined the analysis of the resulting poultry eggs in detail. It was found that tocotrienol increased in poultry egg yolk when fed with rice bran oil extract. Furthermore, the lipid peroxide of egg yolk decreased, and it discovered that an egg itself also has an antioxidant effect, and came to complete this invention.

That is, in this invention, the said subject can be solved only by adding tocotrienol containing vegetable oil extract, especially rice bran oil extract to poultry feed. Rice bran is rich in tocotrienols that are difficult to ingest from other plants. Tocotrienol is also said to be a type of vitamin E. Epidemiological studies have shown that vitamin E has a longer lifespan for people with high intakes, and it is very meaningful for humans to be able to eat in the form of poultry eggs that are easy to consume one type of vitamin E. .

  Even if tocotrienol is a kind of vitamin E, it is known that absorption is better than generally called vitamin E, that is, α-tocopherol. Moreover, the antioxidant power is also strong. Recently, focusing on the antioxidant action of tocotrienol, research on arteriosclerosis and cancer has been conducted.

Currently, tocotrienols have already been extracted from palm and commercialized. The tocotrienol-containing vegetable oil extract described in the present invention may be derived from not only rice bran but also palm. In addition, seed plants such as barley, wheat, oats, coconuts, grapes, soybeans, sunflowers, corn, sesame seeds, rapeseed, peanuts and olives are also raw materials for the tocotrienol-containing vegetable oil extract of the present invention.

  Among the tocotrienol-containing plants used in the present invention, regarding rice bran, the inventor manufactures rice oil using a large amount of rice bran as a raw material in daily corporate activities, so that mass collection of rice bran is easy. In addition, a technology for preparing a rice bran extract containing a high amount of tocotrienol is already possessed, which is very likely to be realized in the realization of the present invention.

  The rice bran oil extract specifically mentioned in the present invention is a rice bran oil extract containing tocotrienol and does not need to be isolated to tocotrienol. Rice bran crude oil, degummed oil, deoxidized oil, dewaxed oil, rice oil deodorized distillate, rice oil obtained in the process of refining rice oil from rice bran, and oil-soluble obtained by concentrating or purifying these An extract is mentioned in the rice bran oil extract of this invention.

  These rice bran oil extracts are added to general poultry feed and fed, and no special breeding is required. The rice bran oil extract can be added in an amount of 0.01 to 20% with respect to the feed. A more appropriate blending ratio is 0.1 to 7.5%. With this blending ratio, it is possible to efficiently produce a poultry egg in which the tocotrienol content of the average poultry egg (0.29 mg relative to 100 g of egg yolk) or more is increased to 0.3 mg or more per 100 g of egg yolk. it can.

  Even when a tocotrienol-containing vegetable oil extract other than rice bran oil extract is added to the feed, it is possible to produce poultry eggs in which tocotrienol is increased to 0.3 mg or more with respect to 100 g of egg yolk at the same blending ratio as rice bran oil extract. .

Giving poultry the required amount of vegetable oil extract containing tocotrienol as feed, especially rice bran oil extract, it is possible to produce poultry eggs in which tocotrienol, a kind of vitamin E, is enhanced to 0.3 mg or more with respect to 100 g of egg yolk. .

  Furthermore, lipid peroxide in egg yolk can be reduced, and intake of lipid peroxide to a person taking the poultry egg of the present invention can be minimized.

  In addition, since the poultry eggs of the present invention have an antioxidant effect, they can eliminate or reduce peroxides in the body of the ingested person, and not only the nutritional aspects of vitamin E intake Can contribute to health.

Since the tocotrienol-containing vegetable oil extract or rice bran oil extract used in the present invention is an oil-soluble extract, it is preferably added as the lipid content of the blended feed. Addition may be kneaded in the form of an oil, or may be powdered and mixed, but in the case of rice bran derived, it contains antioxidant components such as tocotrienol, so it is an antioxidant against oil. Need not be added.

EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated further in detail, this invention is not limited to these.

Rice bran oil extract (rice oil deodorized distillate) was added to normal egg-laying feed at 0.5% and fed to egg-laying hens (20 birds) for 4 weeks. The composition of the rice oil deodorized distillate prepared was a saponification number of 122.6, an unsaponifiable product of 34.8%, a tocopherol of 2.2%, and a tocotrienol of 2.0%.
Table 1 shows the results of measurement of the laying hen survival rate, egg laying rate, and egg weight during the breeding period.
(Comparative Example 1)

For comparison with Example 1, only normal egg-laying feed was fed to egg-laying hens (20 birds) for 4 weeks. Similarly, Table 1 shows the results of measuring the egg-laying rate and egg weight during the breeding period.

  As a result of Table 1, the egg-laying rate and the egg weight were not enhanced by the addition of the rice bran oil extract, but the egg-laying chickens did not die at all, and the rice bran oil extract had no special problems in terms of safety.

In the test of Example 1, the yolk of the 4th week was taken out and the vitamin E content contained in the egg yolk was measured by liquid chromatography. Table 2 shows the tocopherol content and the tocotrienol content.
(Comparative Example 2)

  In the test of Comparative Example 1, the egg yolk of the 4th week was taken out in the same manner as in Example 2, and the vitamin E content contained in the egg yolk was measured. Table 2 shows the tocopherol content and the tocotrienol content.

From the results shown in Table 2, when the feed supplemented with rice bran oil extract was given to laying hens, the tocopherol and tocotrienol contents in the hen eggs increased. Moreover, the addition of 0.5% of rice bran oil extract (rice oil deodorized distillate) increased the tocopherol and tocotrienol contents about 3 times, and the content of tocotrienol was 0.85 mg per 100 g of egg yolk.

Table 3 shows the results obtained by measuring the peroxide content using the thiobarbitur method with respect to the yolk collected from the fourth week obtained in the breeding of Example 1.
(Comparative Example 3)

  In the same manner as in Example 3, the peroxide content of the egg yolk obtained in Comparative Example 1 was measured (Table 3).

  From Table 3, the rice bran oil extract (rice oil deodorized distillate) reduced the peroxide in egg yolk. The effect of reducing peroxide was as strong as about 50% with 0.5% rice oil deodorized distillate.

The egg yolks collected and harvested in Example 1 for 4 weeks and the egg yolk of Comparative Example 1 were crushed, and the oil was extracted with chloroform: methanol (volume ratio 1: 1) and stored at 50 ° C. When the peroxide value was measured by the fat and oil analysis method, the egg yolk of Example 1 had a slower oxidation rate, and the antioxidant effect was observed in the egg yolk of the laying hens bred with the rice bran oil extract-added feed.

ADVANTAGE OF THE INVENTION According to this invention, the poultry egg which enhanced tocotrienol can be obtained by making a poultry ingest a tocotrienol containing vegetable oil extract, especially a rice bran oil extract as a feed. Tocotrienol is abundant in rice bran, but it is difficult to consume rice bran because of its taste and odor. However, since tocotrienol is a useful substance for the human body, it has become possible to provide it in the form of an egg as a result of examining forms that are easy to ingest. And the method only adds rice bran oil extract, such as a tocotrienol containing vegetable oil extract, as poultry feed. The tocotrienol-containing poultry eggs of the present invention are easier to ingest than rice bran, and are practical and easy to use.
Since the functional egg of the present invention has reduced peroxide in egg yolk and contains tocotrienol, which is a kind of vitamin E, and also has antioxidant power due to tocotrienol etc., human nutrition and health Very useful for maintenance.

Claims (3)

A method for producing poultry eggs enriched with tocotrienols in egg yolk, characterized in that rice oil deodorized distillate is fed to poultry. The method according to claim 1, wherein the poultry eggs have an antioxidant effect. 2. The method of claim 1 wherein the lipid peroxide content of poultry eggs has been reduced.