JPH05137536A - Discoloration preventing agent and discoloration preventing method - Google Patents

Abstract

PURPOSE:To obtain a discoloration preventing agent consisting of a component extracted with water, etc., from seeds, etc., of sunflower and L-ascorbic acid, etc., useful for beverages, medicines and cosmetics, etc., having excellent pigment contained in these components. CONSTITUTION:The objective discoloration preventing agent is prepared by blending a component obtained by extracting seeds of sunflower or squeezed less thereof with a water or water-containing alcohol (preferably 20-65% methanol or ethanol), preferably while heating at about 50 deg.C with L-ascorbic acid or salt thereof, preferably at a ratio of 1:(1-5). Prevention of discoloration is carried out by adding this agent, pref. in an amount of 0.01-0.5%.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-fading agent and a method for preventing fading of natural pigments in foods and drinks, pharmaceuticals, quasi drugs, feeds or cosmetics.

[0002]

BACKGROUND OF THE INVENTION Natural pigments, especially carotenoid pigments (eg, β-carotene, astaxanthin, etc.), anthocyanin pigments, heme pigments, etc., are used for foods and drinks such as juices, vegetables, seafood, meats and their processed products. In addition, these natural pigments are used in pharmaceuticals, quasi drugs, feeds or cosmetics for the purpose of appealing to the eyes of consumers and increasing the commercial value, or as a nutrient. However, these dyes undergo oxidation in light or air during storage and rapidly fade. Therefore, conventionally, vitamin C (L-ascorbic acid) has been mainly used as an anti-fading agent, and other vitamin E (α-tocopherol), rutin and the like have been used.

[0003]

However, the effect of L-ascorbic acid cannot be said to be sufficient, and α-
Since tocopherol, rutin, etc. are not easily soluble in water, they are naturally limited in the use of water-soluble products. Therefore, it has been strongly desired to develop a water-soluble and highly effective anti-fading agent and anti-fading method.

[0004]

In view of the above circumstances, the present inventors have keenly studied a water-soluble anti-fading agent which is highly safe and has a stronger effect than L-ascorbic acid. When carried out, the anti-fading agent consisting of water or hydrous alcohol extract from sunflower seeds or its oil cake and L-ascorbic acid or its salts has a far superior anti-fading effect than each used alone. The present invention has been completed, and the present invention has been completed.

[0005]

That is, the present invention relates to an anti-fading agent, which comprises L-ascorbic acid or a salt thereof and a component extracted with water or hydrous alcohol from sunflower seeds or a pressed meal of the sunflower, food and drink, A method for preventing discoloration, which comprises co-existing a component extracted with water or hydrous alcohol from sunflower seed or its pressed meal in a drug, quasi drug, feed or cosmetic, and L-ascorbic acid or a salt thereof. Is provided.

The present invention will be described in detail below. The sunflower seeds used as the raw material of the anti-fading agent used in the present invention are sunflowers belonging to the Asteraceae and the genus Sunflower "Japanese name; daily, Chinese name;
Sunflower, scientific name; Helianz As News (Helia
nthus annuus L. ) ”Is called soka, and is mainly used as a raw material for sunflower oil and as a feed for pets. The meal after pressing the oil is usually used as a feed for livestock, which is also a suitable raw material of the present invention. Of course, hexane after squeezing oil
It goes without saying that other solvents from which oil and fat components have been removed can also be used as the raw material of the present invention.

In order to obtain the sunflower seed extract as referred to in the present invention, sunflower seeds are crushed by a crusher or the like into a suitable size. If the shells have already been crushed by crushed oil cake, etc., they may be used as they are. To these, about 5 to 10 times the amount of water or hydroalcohol is added, and when extraction is performed with water, heating is performed at 50 to 100 ° C or using an autoclave (120 ° C x 1 atm). When using hydrous alcohol, 20 to 80% alcohol solution,
Preferably, the alcohol solution is 30 to 65%, and the temperature is from room temperature to
It is extracted by heating at 70 ° C, preferably around 50 ° C.

As the alcohol, methanol, ethanol, propyl alcohol, isopropyl alcohol or the like can be used. The extract can be concentrated under reduced pressure and then dried and powdered, or can be obtained as a paste or a hydroalcoholic solution. The anti-fading agent of the present invention is mainly composed of the sunflower seed extract thus obtained and L-ascorbic acid or a salt thereof, and as an ascorbate, a physiology usually used for pharmaceutical foods. A salt that is acceptable in particular is used, and examples thereof include sodium ascorbate and calcium ascorbate.

Other conventional antioxidants may be further added to these, and at least one selected from organic acids and inorganic acids and salts thereof, particularly alkali metal salts, may be used in combination. It is also possible to further stabilize and enhance the effect by making it exist.
Further, the spreadability of the anti-fading agent can be enhanced by adding a polysaccharide, oligosaccharide or other saccharide. Examples of organic acids and inorganic acids used as food additives include citric acid, DL-malic acid, phosphoric acid, polyphosphoric acid, hexametaphosphoric acid, and the like. Examples of alkali metal salts thereof include trisodium citrate, Sodium malate,
Disodium hydrogen phosphate, sodium dihydrogen phosphate, sodium polyphosphate, sodium hexametaphosphate and the like are used.

Examples of saccharides include curdlan, xanthan gum, carrageenan, guar gum, polydextrose, lactose, dextrin, glucose and the like. The weight composition ratio of the sunflower seed extract and L-ascorbic acid or a salt thereof in the anti-fading agent according to the present invention is
It is 1: 0.5 to 10, more preferably 1: 1 to 5.

The anti-fading agent according to the present invention is a natural colorant itself or a food or drink, a drug, a quasi drug containing the same,
Used by adding to feed or cosmetics. For example, in the case of food and drink, juices, jellies, Japanese sweets, Western sweets, seafood products, raw fish, red fish, dried fish, pickled vegetables, marinated products such as bottling, ham, sausage, other processed meat products, dried vegetables, vegetables It is added to processed products, soups, sauces, etc. to prevent fading of sugar-coated tablet surface pigments, vitamin-derived pigments such as drinks and other natural pigments in the case of pharmaceuticals, and in the case of quasi-drugs, paste Used to prevent discoloration of pigments such as toothpaste, shampoo and bar soap.

In the case of feed, β is used for the purpose of deep-fried red fish.
-Carotene, astaxanthin, etc. are added,
Decomposition of these pigments not only lowers nutritional aspect but also changes appearance, and therefore can be used for this prevention purpose. In the case of cosmetics, it is added to natural lotion, cosmetic cream, foundation, etc. to prevent deterioration due to the decomposition of existing pigments. The use amount of the anti-fading agent according to the present invention is usually 0.005 to 1% by weight,
It is preferably 0.01 to 0.5% by weight.

[0013]

The anti-fading agent and the anti-fading method using the same according to the present invention comprise an extract obtained from sunflower seeds which is a natural product and L-ascorbic acid (vitamin C) which is a natural product. Since it is a thing, it is highly safe,
Further, it is possible to obtain a far higher effect of preventing discoloration than using each of them alone.

[0014]

EXAMPLES Next, the present invention will be specifically described with reference to examples, but the present invention is not limited to these. Reference Example 1 Production Example of Sunflower Seed Extract 500 g of sunflower seeds were ground with a coffee mill, 3500 ml of tap water was added thereto, and the mixture was extracted at 80 to 85 ° C. for 5 hours. After filtering with Buchner, concentrate with an evaporator,
Then, it was freeze-dried. The extract obtained was 43 g.

(Reference Example 2) Production Example of Sunflower Seed Extract 500 g of sunflower squeezed lees and 300% ethanol containing 50% water
0 ml was added and extraction was carried out at 50 ° C. for 5 hours. At Buchner,
After filtration, it was concentrated by an evaporator and then freeze-dried to obtain 55 g of an extract.

Example 1 Using the sunflower seed extract obtained in Reference Example 1, an anti-fading agent having the following composition was prepared. Composition of anti-fading agent (% by weight) Sunflower seed extract 20 L-ascorbic acid Na 38 L-ascorbic acid 2 citrate Na 10 glucose 30

Example 2 Using the sunflower seed extract obtained in Reference Example 2, an anti-fading agent having the following composition was prepared. Composition of anti-fading agent (% by weight) Sunflower seed extract 10 L-ascorbic acid Na 38 L-ascorbic acid 2 hexametaphosphate Na 10 xanthan gum 2 dextrin 38

(Example 3) (Effect of preventing fading of pigment in orange juice) Orange juice composition (% by weight) Granulated sugar 6 Isomerized sugar (HF-55) 8 Citric acid 0.3 Na citrate 0.07 Orange Fruit juice 30 Water-soluble β-carotene powder (1.5%) 0.02 Made up to 100% with water. pH 3.52

An orange juice of the above composition was made as a trial product and 1
100 ml of each was dispensed into a 00 ml transparent glass container.
A predetermined amount of sunflower seed extract and L-ascorbic acid were added thereto and stored under a fluorescent lamp of 5000 lux, and the amount of residual pigment (β-carotene) was measured. As a result, as shown in Table 1, sunflower was obtained. The combined use of the seed extract and L-ascorbic acid showed far superior anti-fading effect as compared with the use of each alone.

The dye residual rate was determined as follows.

[0021]

(Example 4) (Test for preventing fading of freeze-dried vegetables) 200 ml of a 0.25% aqueous solution of the anti-fading agent obtained in Example 1 was boiled and 100 g of carrots cut into strips was put in it and boiled for 5 minutes. did. After draining and cooling, it was freeze-dried. (Test section) In the control section, 200 ml of water was boiled and the same procedure as in the test section was performed. For comparison, 200 ml of a 0.1% aqueous solution of sunflower seed extract was boiled and the test was conducted in the same manner as in the test section. (Comparison area 1)

Similarly, as a comparison, sodium L-ascorbate
200 ml of a 0.5% aqueous solution of was boiled and the test was conducted in the same manner as in the test section. (Comparison Group 2) Each lyophilized carrot was placed in a plastic bag with a zipper and stored indoors under a fluorescent lamp of about 5000 lux, and the color tone was observed over time. The observation results are shown in Table 2. The degree of color tone is shown as ++ when the original color tone is maintained, as + when slightly discolored, as ± when significantly discolored, and as − when completely discolored.

[0024] Those using the above anti-fading agent (test group), compared with the case of using only sunflower seed extract (Comparative group 1) and the case of using only L-ascorbate Na (Comparative group 2), The freshness was excellent.

(Example 5) (Fat color retention test of silver salmon fillet) 2% 20% w / v saline
0.25 ml of the anti-fading agent obtained in Example 2 was added to 00 ml.
% W / v added to the solution, silver salmon fillet (about 50g) 2
The pieces were soaked at room temperature for about 20 hours. After that, it was taken out, wiped with water, and stored in a refrigerator. (Test section) The control section was the same as the test section except that the dipping solution was 200 ml of 20% w / v saline.

As a comparison, a solution prepared by adding 0.1% w / v of sunflower seed extract to 20% w / v saline was used in the same manner as in the test section. (Comparative group 1) Similarly, as a comparison, a solution prepared by adding 0.5% w / v Na L-ascorbate to 20% w / v saline was performed in the same manner as the test group. (Comparative group 2) Each was taken out from the refrigerator over time, and the change in color tone was observed. The observation results are shown in Table 3.

As for the degree of color tone, the original color tone is maintained at ++, the bloody portion is discolored at +, the flesh portion is slightly discolored at ±, and the flesh portion is significantly discolored. The thing was displayed as-.

Compared with those using the above anti-fading agent (test group), those using only sunflower seed extract (comparative group 1) and those using only sodium L-ascorbate (comparative group 2) The color fading prevention effect was excellent.

[0029]

INDUSTRIAL APPLICABILITY According to the present invention, a safe discoloration having an effect superior to that obtained by using the component extracted from sunflower seeds or its oil cake with water or hydroalcohol or L-ascorbic acid or its salt alone is used. In addition to being able to provide an anti-fading agent, this anti-fading agent can be used to
By allowing it to coexist in feed or cosmetics, it is possible to provide an excellent method for preventing discoloration of the pigment contained therein.

Claims (2)

[Claims] 1. An anti-fading agent comprising L-ascorbic acid or a salt thereof and a component extracted from sunflower seeds or a pressed oil cake thereof with water or a hydrous alcohol. 2. L-ascorbic acid or a salt thereof is allowed to coexist in a food or drink, a drug, a quasi-drug, a feed or a cosmetic, with a component extracted with water or hydrous alcohol from sunflower seeds or a pressed meal of the sunflower. How to prevent fading. [0000]