JP2014118364A - Advanced glycation end product decomposer - Google Patents

Abstract

【Task】
It is an object of the present invention to provide an excellent advanced glycation end-product degrading agent that is suitable as an orally administered composition or cosmetic and that acts immediately on the skin.
[Solution]
It has been found that an extract of Quercus salicina has an excellent advanced glycation end product decomposition action. Furthermore, by using foods and cosmetics containing this extract, it was found that the skin aging phenomenon was excellently improved due to the action of degrading advanced glycation and end products.
[Selection figure] None

Description

  The present invention relates to an advanced glycation end product degrading agent comprising an extract of Quercus salicina, an oral administration composition containing the advanced glycation end product degrading agent, and a cosmetic. About.

Aging is a phenomenon that humans always meet if they live long, and it is said that early signs have already begun in their 30s or 40s. The skin loses its elasticity due to aging, and the skin that is light-skinned is darkened and its appearance is never preferable. It is a feeling that everyone wants to be beautiful, and it can be said that development of a means to resist such aging is desired.

A mechanism that has recently attracted attention regarding skin aging is the generation and accumulation of Maillard reaction and subsequent advanced glycation end products (hereinafter sometimes abbreviated as AGEs). AGEs are products generated as a result of the Maillard reaction, but the Maillard reaction is the first phase in which the amino group and carbonyl group derived from living organisms generate a Schiff base by a non-catalytic condensation reaction, and this azomethine bond undergoes the Amadori transition. The Amadori rearrangement product is divided into brown, fluorescent, insolubilized and later stages leading to later products through complex reactions such as dehydration, condensation, cyclization, and bridge formation.AGEs are the final products. is there. Such a reaction is a mechanism in which the skin protein is deprived of its function because it oxidatively denatures the skin protein, and this is reflected in various states of aging. It is said that such AGE generation reaction is an irreversible reaction, and once AGEs are generated, it only accumulates thereafter. Although these AGEs are usually difficult to decompose, it is known that they can be decomposed by cleaving the C—C bond between the ketones of the α-diketone structure existing in AGEs (for example, Non-Patent Document 1). See). Regarding the degradation of AGEs, plant extracts such as olive extract, saxifrage extract, potentilla extract, rooibos extract, citrus extract, mugwort extract, and lotus extract are known (for example, Patent Document 1). , Patent Literature 2, Patent Literature 3, Patent Literature 4, Patent Literature 5, Patent Literature 6, Patent Literature 7, and Patent Literature 8), plant extraction having a stronger AGEs decomposition action and improving skin aging Development of things was desired.

JP 2001-122758 A JP 2001-108622 A JP 2007-161660 A JP 2007-161661 A JP 2007-161662 A JP 2007-161663 A JP 2011-11981 JP 2007-119373 A Sara Vasan, et.al., Nature, 382 (1996), 275-278

The present invention has been made under such circumstances, and an object of the present invention is to provide an orally administered composition or a cosmetic containing an extract of Quercus salicina having an AGEs-degrading action. To do.

In view of such a situation, the present inventors sought a plant extract responsible for AGEs degradation, and as a result of intensive efforts, the extract of the genus Quercus salicina is an AGEs degradation action. As a result, the present invention has been completed. That is, the present invention is as follows.
<1> An advanced glycation end product degradation agent comprising an extract of Quercus salicina belonging to the beech family Quercus salicina.
<2> An orally administered composition comprising the advanced glycation end product degradation agent according to <1>.
<3> The composition for oral administration according to <2>, which is a food.
<4> A cosmetic comprising the advanced glycation end product degradation agent according to <1>.

  ADVANTAGE OF THE INVENTION According to this invention, the oral administration composition and cosmetics which contain the outstanding AGEs degradation agent, this AGEs degradation agent can be provided.

The AGEs decomposer of the present invention is characterized by containing an extract of Quercus salicina as an active ingredient. Leaves are particularly preferred as the site to be used. At the time of extraction, it is preferable to process the leaf or its dried product in advance so as to improve the extraction efficiency by crushing or chopping. The extraction is preferably performed by adding 1 to 30 parts by mass of a solvent to 1 part by mass of the plant or the dried product and immersing at room temperature for 24 hours or more, or refluxing for 1 to 5 hours or more. The extraction solvent is preferably a polar solvent, and is selected from one or more selected from water, alcohols such as methanol, ethanol, isopropyl alcohol, and butanol, ketones such as acetone and methyl ethyl ketone, and ethers such as diethyl ether and tetrahydrofuran. Two or more kinds can be preferably exemplified, and 30 to 100% by mass, more preferably 70 to 100% by mass methanol-containing aqueous solution, and 100% by mass methanol can be particularly suitably exemplified. After soaking, insolubles can be removed by filtration, and then the solvent can be removed by vacuum concentration or the like, but removal by freeze-drying is particularly preferred. The powder composition from which the solvent has been removed may be used as it is, but after that, liquid-liquid extraction with water and ethyl acetate, water and butanol, etc., or column chromatography packed with silica gel or ion exchange resin. It may be fractionated and purified by the same method. An extract obtained by such an extraction method is expected to have an AGE decomposition function.

Such a component has an AGE-degrading action in vivo.

The AGEs-degrading agent of the present invention is preferably applied to pharmaceuticals, cosmetics, foods, beverages, etc. for the purpose of enhancing the AGEs-degrading action in vivo, and is applicable to foods, cosmetics, etc. because it can be taken daily Is more preferable.

Examples of food include general foods such as confectionery, bread and noodles, drink preparations, capsules and tablets, food groups with the purpose of promoting health (for example, foods for specific health use), granules, powders An oral administration medicine etc. which take the form of an agent, a capsule, and a tablet can be illustrated, However, It uses especially as a foodstuff. Each formulation can contain any acceptable ingredient. Examples of such optional ingredients include foods such as salt, sugar, sodium glutamate, sodium inosinate, vinegar and other flavoring ingredients, coloring ingredients, flavoring ingredients such as flavors, thickeners, emulsifying / dispersing agents, and preservatives. Stabilizers, various vitamins and the like can be preferably exemplified, and if it is a food group or pharmaceutical product having the purpose of promoting health, excipients such as crystalline cellulose and lactose, binders such as arabic gum and hydroxypropylcellulose, croscarm Preferred examples include disintegrants such as loin sodium and starch, lubricants such as magnesium stearate, flavoring agents, flavoring agents, coloring agents, various vitamins and the like. By treating these according to a conventional method, the composition for oral administration of the present invention can be produced. At this time, the extract is preferably contained in a total amount of 0.05% to 60% by mass, more preferably 0.5% to 50% by mass, based on the total amount of the composition, as a solid content. . The composition for oral administration of the present invention thus obtained is excellent in AGE decomposition activity by taking it. In order to exert such effects, it is preferable to drink the plant extract in a total amount of 10 to 1000 mg per day divided into one or several times.

The cosmetics are not particularly limited, for example, basic cosmetics such as essence, milky lotion, cream, etc., makeup cosmetics such as under makeup, foundation, cheek color, mascara, eyeliner, hair cream, etc. Hair cosmetics etc. can be illustrated suitably.

When the AGEs decomposing agent of the present invention is contained in cosmetics, optional components usually used in cosmetics can be contained within a range that does not impair the effects of the present invention.

Examples of such optional ingredients include macadamia nut oil, avocado oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, liquid lanolin, and hardened coconut oil. Oil, wax, liquid paraffin, squalane, pristane, ozokerite, paraffin, ceresin, petrolatum, oil, wax, liquid wax, liquid paraffin, squalane, bean wax, candelilla wax, carnauba wax, ibotarou, lanolin, reduced lanolin, hard lanolin, jojoba wax , Hydrocarbons such as microcrystalline wax, higher fatty acids such as oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, undecylenic acid, cetyl alcohol, stearyl alcohol, isostear Alcohol, behenyl alcohol, octyldodecanol, higher alcohol such as myristyl alcohol, cetostearyl alcohol, cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, diisopropyl adipate, di-2-ethylhexyl sebacate, cetyl lactate, apple Diisostearyl acid, ethylene glycol di-2-ethylhexanoate, neopentyl glycol dicaprate, glycerin di-2-heptylundecanoate, glycerin tri-2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, Synthetic ester oils such as trimethylolpropane triisostearate and pentane erythritol tetra-2-ethylhexanoate, dimethylpolysiloxane, Chain polysiloxane such as siloxane, diphenylpolysiloxane, cyclic polysiloxane such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexanesiloxane, amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, Oil agents such as silicone oil such as modified polysiloxane such as fluorine-modified polysiloxane, anionic surfactants such as fatty acid soap (sodium laurate, sodium palmitate, etc.), potassium lauryl sulfate, triethanolamine ether of alkyl sulfate, chloride Cationic surfactants such as stearyltrimethylammonium, benzalkonium chloride, laurylamine oxide, imidazoline-based amphoteric surfactants (2-cocoyl-2-imi Dazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine surfactants (alkyl betaines, amide betaines, sulfobetaines, etc.), amphoteric surfactants such as acylmethyl taurine, sorbitan fatty acid esters ( Sorbitan monostearate, sorbitan sesquioleate, etc.), glycerin fatty acids (such as glyceryl monostearate), propylene glycol fatty acid esters (such as propylene glycol monostearate), polyglycerin fatty acid esters, hydrogenated castor oil derivatives, glycerin alkyl Ethers, POE sorbitan fatty acid esters (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, etc.), POE sorbite fatty acid esters (POE-sorbit monolaur) POE glycerin fatty acid esters (POE-glycerin monoisostearate etc.), POE fatty acid esters (polyethylene glycol monooleate, POE distearate etc.), POE alkyl ethers (POE2-octyldodecyl ether etc.), POE Alkylphenyl ethers (POE nonylphenyl ether, etc.), Pluronic types, POE / POP alkyl ethers (POE / POP2-decyltetradecyl ether, etc.), Tetronics, POE castor oil / hardened castor oil derivative (POE castor oil) , POE hydrogenated castor oil, etc.), nonionic surfactants such as sucrose fatty acid ester, alkyl glucoside, polyethylene glycol, glycerin, 1,3-butanediol, erythritol, sorbitol, xylyl A lot of alcohol, maltitol, propylene glycol, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexylene glycol, 1,2-hexanediol, 1,2-octanediol, etc. Moisturizing ingredients such as monohydric alcohols, sodium pyrrolidone carboxylate, lactic acid, sodium lactate, guar gum, quince seed, carrageenan, galactan, gum arabic, pectin, mannan, starch, xanthan gum, curdlan, methylcellulose, hydroxyethylcellulose, carboxymethylcellulose, Methyl hydroxypropyl cellulose, chondroitin sulfate, dermatan sulfate, glycogen, heparan sulfate, hyaluronic acid, sodium hyaluronate, tragacanth gum, keratan sulfate, co Nudroitin, mucoitin sulfate, hydroxyethyl guar gum, carboxymethyl guar gum, dextran, keratosulfate, locust bean gum, succinoglucan, caronic acid, chitin, chitosan, carboxymethyl chitin, agar, polyvinyl alcohol, polyvinyl pyrrolidone, carboxyvinyl polymer, poly Thickeners such as sodium acrylate and polyethylene glycol, the surface may be treated, powders such as mica, silica, calcium carbonate, magnesium carbonate, aluminum oxide, barium sulfate, and the surface may be treated , Bengala, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, bitumen, titanium oxide, zinc oxide inorganic pigments, pearls such as titanium mica, fish phosphorus foil, bismuth oxychloride, etc. whose surface may be treated Agents, rake Red 202, Red 228, Red 226, Yellow 4, Blue 404, Yellow 5, Red 505, Red 230, Red 223, Orange 201, Red 213, Yellow Organic powders such as No. 204, Yellow No. 203, Blue No. 1, Green No. 201, Purple No. 201, Red No. 204, organic powders such as polyethylene powder, polymethyl methacrylate, nylon powder, organopolysiloxane elastomer, Paraaminobenzoic acid UV absorbers, anthranilic acid UV absorbers, salicylic acid UV absorbers, cinnamic acid UV absorbers, benzophenone UV absorbers, sugar UV absorbers, 2- (2'-hydroxy-5 ' UV absorbers such as -t-octylphenyl) benzotriazole, 4-methoxy-4'-t-butyldibenzoylmethane, ethanol, Such as lower alcohols isopropanol, etc. can be preferably exemplified. At this time, it is preferable that this extract is contained as a solid content in a total amount of 0.05% by mass to 10% by mass, more preferably 0.5% by mass to 5% by mass with respect to the total amount of the cosmetic. . The cosmetic composition of the present invention thus obtained is excellent in AGEs decomposition action by applying it to the skin.

<Production example>
Weighed 200 g of dry matter of Quercus salicina leaves, pulverized, added 2 liters of methanol, refluxed for 2 hours, removed insolubles by filtration, concentrated filtrate, Lyophilized to obtain 18 g of extract.

Hereinafter, the present invention will be described in more detail with reference to examples, but it goes without saying that the present invention is not limited to such examples.

<Example 1> AGEs decomposition action evaluation test AGEs decomposition action evaluation was carried out using the following test materials.
AGE-BSA: Glucose and BSA are incubated at 37 ° C. for 30 hours or more, and excess glucose is removed with PD-10 columns (GE Healthcare: 17-0851-1). Primary antibody: Rabbit anti- AGEs Monoclonal Antibody (Trans Genic: KH001) (1/2500 dilution) Secondary antibody: Goat anti-rabbit IgG horseradish peroxidase conjugate (BioRAD: 170-6515) (1/10000 dilution), Avidin-biotin-HRP: High Sensitivity Streptavidin-HRP (Wako: 515-58231) (1/100 dilution), substrate: TMB solution (Wako: 208-17371)
(procedure)
AGE-BSA and sample are mixed 100 μl each (final concentration 100 μg / ml, 0.01%, respectively) and left at 37 ° C. for 19 hours. 100 μl of the mixture is added to a 96-well microplate, left to stand at 37 ° C. for 1 hour, and then washed three times with 0.05% Tween 20 / PBS (−). Add 100 μl of blocking buffer (1% BSA / PBS (−)), let stand at room temperature for 1 hour, and then wash 3 times with 0.05% Tween20 / PBS (−). After adding 100 μl of the primary antibody and allowing to stand at room temperature for 1 hour, it is washed 3 times with 0.05% Tween20 / PBS (−). After adding 100 μl of the secondary antibody and allowing to stand at room temperature for 1 hour, it is washed 3 times with 0.05% Tween20 / PBS (−). Add 100 μl of Avidin-biotin-HRP, let stand for 1 hour at room temperature, and then wash with 0.05% Tween20 / PBS (−) three times. After adding 100 μl of TMB and reacting at room temperature for 15 minutes, 100 μl of 1N hydrochloric acid is added to stop the reaction, and the absorbance at 450 nm is measured. The absorbance in the absence of AGEs and samples was taken as 100% decomposition rate, the absorbance in the case of adding only AGEs was taken as 0% decomposition rate, and the degradation rate with AGEs and samples was calculated.

In this evaluation, when the degradation rate of AGEs is 15% or more, it is determined that the extract or fraction purified product suitable for blending into the cosmetic of the present invention. In blending, a component having a stable titer can be contained if it is prepared so as to have a decomposition rate of 15%. The effective concentration is preferably set so as to contain a concentration that is recognized as being effective in this study.

As a result of measuring the AGEs resolution, the AGEs decomposition rate of the extract of Vulgaris is 23.4% (final concentration 0.01%), which may have an appropriate effect for blending into foods and cosmetics. all right.

<Example 2> Food The food of the present invention was prepared according to the formulation shown in Table 1 below. That is, the prescription ingredients were subjected to rolling phase granulation with “10 parts by weight of water (“ New Malmerizer ”manufactured by Fuji Powder Co., Ltd.), and tableted to obtain 1 g of a tablet-like food. In addition, Comparative Example 1 was prepared at the same time, in which the extract of Vulgaris was replaced with crystalline cellulose in the formulation components shown in Table 1.

<Example 3> Skin aging improving action evaluation test using food of the present invention The food of Example 2 and Comparative Example 1 was used to examine the effect on the skin elasticity. Group of 20 panelists randomly collected from worries about skin aging phenomena (wrinkles, spots, dullness, sagging, skin texture, skin elasticity, etc.) divided. One group took the food of Example 2 of the present invention, the remaining one group took Comparative Example 1 once a day, one tablet, and a score of 5 (very satisfactory) for food. , Score 4 (satisfied), score 3 (not good or bad), score 2 (dissatisfied), and score 1 (very dissatisfied). The results are shown in Table 2.

From the questionnaire results shown in Table 2, the use of foods containing the AGEs degrading agent comprising the extract of the velvet leaf of the present invention causes the skin aging phenomenon (wrinkles, spots, dullness, sagging, skin texture, skin viscoelasticity). It has been found that it has an excellent improving effect on the property. This is considered to be because the AGEs-decomposing agent comprising the extract of the velvet leaf of the present invention decomposes AGEs accumulated in the skin or suppresses the production of AGEs, thereby improving the skin aging phenomenon.

<Example 4> Cosmetics In accordance with the formulation shown in Table 3 below, a lotion that is a cosmetic of the present invention was prepared. By using the cosmetic of the present invention, an excellent improvement in the skin aging phenomenon due to the AGEs decomposition action was recognized as in the use of the food of the present invention.

  The AGE decomposition agent of the present invention can be applied to foods such as functional foods and cosmetics.

Claims (4)

An advanced glycation end product degradation agent characterized by containing an extract of Quercus salicina. An orally administered composition comprising the advanced glycation end product degradation agent according to claim 1. The composition for oral administration according to claim 2, which is a food. A cosmetic comprising the advanced glycation end product degradation agent according to claim 1.