JP3891746B2 - Whitening composition for oral administration - Google Patents

Whitening composition for oral administration Download PDF

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Publication number
JP3891746B2
JP3891746B2 JP32277599A JP32277599A JP3891746B2 JP 3891746 B2 JP3891746 B2 JP 3891746B2 JP 32277599 A JP32277599 A JP 32277599A JP 32277599 A JP32277599 A JP 32277599A JP 3891746 B2 JP3891746 B2 JP 3891746B2
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extract
oral administration
whitening composition
whitening
pyracantha
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JP2001139482A (en
Inventor
妙子 飯野
律夫 岩澤
良信 木曽
英雄 辻村
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Suntory Ltd
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Suntory Ltd
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Priority to JP32277599A priority Critical patent/JP3891746B2/en
Application filed by Suntory Ltd filed Critical Suntory Ltd
Priority to CN00802731A priority patent/CN1336826A/en
Priority to NZ512525A priority patent/NZ512525A/en
Priority to MYPI20005299A priority patent/MY127449A/en
Priority to IDW00200101500Q priority patent/ID29104A/en
Priority to PCT/JP2000/007970 priority patent/WO2001035971A1/en
Priority to AU13078/01A priority patent/AU781176B2/en
Publication of JP2001139482A publication Critical patent/JP2001139482A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • A61Q19/02Preparations for care of the skin for chemically bleaching or whitening the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/96Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
    • A61K8/97Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
    • A61K8/9783Angiosperms [Magnoliophyta]
    • A61K8/9789Magnoliopsida [dicotyledons]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00Drugs for dermatological disorders
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/80Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
    • A61K2800/92Oral administration

Description

【0001】
【発明の属する技術分野】
本発明は、飲食品等による経口投与に適した美白組成物に関する。また、本発明は、該組成物を含有する経口投与用美白剤およびその使用に関する。
【0002】
【従来の技術】
従来より白い肌は美しい肌と認識されており、シミ・ソバカス等を予防又は治療し、白い肌を得ることを目的として、ハイドロキノンおよびその配糖体(例えば、アルブチン)、コウジ酸およびその誘導体、アスコルビン酸およびその誘導体、チオール系化合物、種々の動植物抽出物等のチロシナーゼ阻害活性を有する物質を配合した美白用化粧料が提案されてきた。
【0003】
また、火棘(Pyracantha fortuneana )やタチバナモドキ(Pyracantha angusutifolia)の抽出物がチロシナーゼ阻害活性を有しており、美白効果の優れた美白用化粧料組成物であることも知られていた(特許第2749218 号公報)。
近年、美白に対する意識がより一層高まり、従来の化粧料によるものだけでなく、飲食品等により簡便に経口摂取できる美白剤の提供が望まれるようになってきた。
【0004】
しかしながら、従来より美白用化粧料に使用されてきた物質が、経口摂取でも化粧料と同等の効果を有するかどうかは不明であり、経口摂取により美白効果を有するものとしては、わずかにビタミンC製剤やチオール化合物が知られているのみであった。しかも、これらも安定性や吸収性の問題から、十分な効果を発揮しているとは言い難かった。
【0005】
【発明が解決しようとする課題】
そこで、本発明者らは、このような状況下、経口投与で有効でかつ安全な美白用組成物を提供することを課題とした。
【0006】
【課題を解決するための手段】
本発明者らは、安全性の面からこれまでに食経験があるものの中から、経口投与で美白作用を発揮する植物を鋭意研究した結果、バラ科ピラカンタ属(Rosaceae Pyracantha )植物が有効であることを見出した。具体的には、バラ科ピラカンタ属植物として火棘(Pyracantha fortuneana )およびタチバナモドキ(Pyracantha angusutifolia)の果実の水、エタノール、またはそれらの混液での抽出物が、経口投与で美白作用を発揮することを見出し、本発明を完成した。
【0007】
なお、美白効果を有する物質の化粧料等による皮膚への直接の塗布と、飲食物による経口投与という投与形態の違いにより、その有効性が異なることは明らかであるが、以下に簡単にその違いについて述べておく。
化粧料は皮膚表面に直接塗布され、化粧料成分の大部分は、皮膚表面に留まって、皮膚の生理機能を損なわずに、化粧料本来の機能を果たしている。
【0008】
一方、経口投与においては、美白効果を有する物質はまず消化管内液に溶解し、胃または小腸から吸収される。小腸から吸収されたものは、主として門脈から肝臓、そして静脈内に入り、さらに心臓を通って全身に循環し体内各部位に到達し、各組織の細胞内に取り込まれる。
従って、化粧料で有効な物質が、経口投与においても化粧料と同様の効果を示すかどうかは不明である。
【0009】
事実、アルブチンやアスコルビン酸はチロシナーゼ阻害活性を有しており、従来より優れた美白用化粧料として使用されているが、経口投与においては美白効果が低いことからも、経口投与と化粧料ではその効果が異なることは明らかである。
また、本発明においても、火棘抽出物の分画物のうち、試験管内でのチロシナーゼ阻害活性が強い画分では経口投与による美白活性は弱く、逆に試験管内でのチロシナーゼ阻害活性が弱い画分が経口投与で美白活性を発揮することを見出して本発明を完成している。
【0010】
【発明の実施の形態】
本発明で用いた中国名「火棘」(Pyracantha fortuneana )は、その果実が漢方名「赤陽子」として、脾臓を健やかに保つ、消化不良を治す等の効能・効果が知られている。また、タチバナモドキ(Pyracantha angusutifolia)は火棘と同じピラカンタ属の中国原産の潅木で、日本では庭木として用いられている。
本発明においては、これらの植物の溶媒抽出物が使用されるが、これらの植物の果実の溶媒抽出物を用いるのが好ましい。
【0011】
これらの植物からの有効成分の抽出に際して使用する溶媒は、有効成分が効果的に抽出される溶媒であれば、特に限定されるものではないが、水またはメタノール、エタノールなどの低級アルコール、あるいはそれらの混液が好ましく、安全性の面で、水もしくはエタノールまたはそれらの混液を用いるのがより好ましい。
【0012】
水により抽出を行う場合、常温の水を使用することもできるが、熱水、例えば60℃〜100℃の熱水を使用するのが好ましい。また、メタノール、エタノール等の有機溶媒を使用する場合、常温で抽出してもよく、あるいは該有機溶媒の沸点以下の温度にて熱抽出を行ってもよい。また、メタノール、エタノール等の有機溶媒と水との混液を使用する場合、常温で抽出してもよく、あるいは該溶媒の沸点以下の温度にて熱抽出を行ってもよい。
【0013】
また、有効成分を高濃度に配合するために、抽出物を、濃縮、液液分配、吸着クロマトグラフィー等の手段により精製して用いることも可能である。例えば、本発明の抽出物について吸着クロマトグラフィーを行う場合の吸着剤としては、合成吸着剤、例えばスチレン−ジビニルベンゼンのごとき芳香族系合成吸着剤を使用することができる。芳香族系合成吸着剤の具体例として、例えばダイヤイオンHP−20(商品名、三菱化成工業社製)が挙げられる。さらに、ダイヤイオンHP−21(商品名、三菱化成工業社製)、アンバーライトXAD 2およびXAD 4(共に商品名、ロームアンドハース社製)などが使用できるが、これらに限定されるものではない。
【0014】
ダイヤイオンHP−20を使用する場合、この吸着剤を充填したカラムに抽出液を適用し、流過した液およびカラムを水で洗浄して得られる画分を使用するのが好ましい。また、有機溶剤を使用して溶出する場合は、有機溶剤と水との混合物、例えば20〜80v/v %のメタノール又はエタノール水溶液で溶出して得られる画分を使用することができる。
【0015】
このようにして得られる本発明の経口投与用美白組成物は、シミ、ソバカス等の予防または治療に有効で、優れた美白効果を有する経口投与用組成物であって、錠剤、カプセル剤あるいは顆粒としてそのまま摂取するか、飴、グミ、飲料などの飲食品に配合して摂取することができるが、その形態は限定されるものではない。
また、本発明において使用される抽出物の成人一人当たりの1日の摂取量は、年齢、健康状態、体重等にもよるが、粗抽出物の固形分換算で0.01g〜20.0g、好ましくは0.1g〜10.0gを摂取することが望ましい。
【0016】
【実施例】
次に、実施例によって本発明をさらに詳細に説明するが、本発明の範囲はこれらのみに限定されるものではない。
実施例1火棘果実の熱水抽出物
火棘の乾燥果実5.00gを、90℃の熱水50mlに浸漬し、3時間煮沸の後に濾過し、得られた抽出液を減圧濃縮して粗抽出物(固形分換算1.33g)を得た。
【0017】
実施例2火棘果実の水/エタノール混液抽出
火棘の乾燥果実5.00gを、50%エタノール水溶液50mlに1週間浸漬の後に濾過し、得られた抽出液を減圧濃縮して粗抽出物(固形分換算1.08g)を得た。
【0018】
実施例3タチバナモドキ果実の熱水抽出
タチバナモドキ乾燥果実5.00gを90℃の熱水50mlに浸漬し、3時間煮沸の後に濾過し、得られた抽出物を減圧濃縮して粗抽出物(固形分換算1.21g)を得た。
【0019】
実施例4火棘果実の熱水抽出物の分画
実施例1の方法により得られた火棘果実の粗抽出物(固形分換算6.09g)を水600mlに溶解し、ダイヤイオンHP−20のカラム(Φ3cm×11cm、Vt=80ml)に負荷後、800mlの水で洗浄した。通過液と洗浄液を集めて減圧濃縮の後、凍結乾燥して固形物5.13gを得た(第1画分)。
次いでカラムを400mlの20%エタノール水溶液で溶出し、溶出液を減圧濃縮の後、凍結乾燥して固形物0.22gを得た(第2画分)。
【0020】
次いでカラムを400mlの40%エタノール水溶液で溶出し、溶出液を減圧濃縮の後、凍結乾燥して固形物0.49gを得た(第3画分)。
次いでカラムを400mlの80%エタノール水溶液で溶出し、溶出液を減圧濃縮の後、凍結乾燥して固形物4mgを得た(第4画分)。
なお、第1〜4画分の回収率は合計で96%であった。
【0021】
実施例5チロシナーゼ阻害活性の測定
チロシナーゼ阻害活性は次のように測定した。
50mM カリウム−ナトリウムリン酸緩衝液(pH 6.8) 1.00ml
L −チロシン(ナカライテスク社製)0.5mg/ml水溶液(1) 0.25ml
試料水溶液(2)(実施例1〜4の試料およびアルブチンについて各々種々の濃度に調整した試料) 1.00ml
【0022】
これらをよく混合し、30℃で10分間放置した後、マッシュルーム由来のチロシナーセ(シグマ社製)0.1mg/ml水溶液を0.25ml加え、30℃で12分程度(コントロールの吸光度が0.5程度)反応させた後、475nmで吸光度Aを測定した。同時に、試料水溶液(2)の代わりに等量の水を加えた時の吸光度B、L−チロシン水溶液(1)の代わりに水を用いた時の吸光度Cを測定した。阻害率はA,B及びCの吸光度より、次の式で計算した。
阻害率(%)=(B−(A−C))/B×100
この測定法で各試料について、チロシナーゼ阻害活性を測定し、阻害率が50%になる時の試料濃度(IC50)を表1に示す。表1より明らかなように、実施例4の第1画分以外は、全てチロシナーゼ阻害活性を有していた。
【0023】
【表1】

Figure 0003891746
【0024】
実施例6マウスを用いた美白作用の検討(1)
実施例1で得られた粗抽出物0.04mg、0.12mg、0.40mg又は10mgを水(0.2ml)に溶解し、各々を1日1回マウス(各群6 匹)に経口投与した後に180mJ/cm2 の紫外線(UVB )を照射した。コントロール群としては火棘抽出物の代わりに水を投与した。また、比較例として、アスコルビン酸0.67mgを用いた。これを10日間継続した後にマウスの耳介を採取し、表皮をドーパ染色してスライド標本を作成した。各標本5ヶ所についてドーパ陽性メラノサイト数をカウントした結果を表2に示す。
【0025】
表2に示すように、火棘抽出物はドーパ陽性メラノサイト数を減少させた(0.12mg以上でコントロールに対してP<0.05の有意差あり)。この結果から、火棘抽出物の経口摂取による美白作用が明らかとなった。なお、従来より美白用化粧料に使用されているアスコルビン酸は、ドーパ陽性メラノサイト数の減少は見られたが、コントロールに対する有意差は見られなかった。
【0026】
【表2】
Figure 0003891746
【0027】
実施例7マウスを用いた美白作用の検討(2)
実施例4で得られた火棘の分画物を粗抽出物中のおおよその存在比(10:1:1)で、すなわち第1画分10mg、第2画分1mg、第3画分1mgを水(0.2ml)に溶解し、1日1回マウス(各群ともn=6)に経口投与した後に180mJ/cm2 のUVB を照射した。コントロール群は火棘の各分画物の代わりに水を投与した。比較例として、アルブチン12mgを用いた。これを10日間継続した後にマウスの耳介を採取し、表皮をドーパ染色してスライド標本を作成した。各標本5ヶ所についてドーパ陽性メラノサイト数をカウントした結果を表3に示す。
【0028】
実施例5においてチロシナーゼ阻害活性のなかった火棘抽出物の第1画分がドーパ陽性メラノサイト数を有意に減少させた(P<0.05の有意差あり)。一方、チロシナーゼ阻害活性の強い第2画分、第3画分およびアルブチンはドーパ陽性メラノサイト数を減少させる傾向はあるものの、有意差はみられなかった。
この結果から、火棘抽出物の経口摂取による美白作用の本体は、主に第一画分に含まれることが明らかとなった。また、チロシナーゼ阻害活性の強さと、経口による美白活性の強さは一致しないことも明らかとなった。
【0029】
また、実施例6における火棘粗抽出物(10mg/日)と実施例7における火棘粗抽出物の第1画分(10mg/日)はほぼ同等の活性を有していることから、第1画分以外の画分が経口による美白活性を妨げるものでないと考えられたので、以後の実施例では、実施例1で得られた抽出物を用いることとした。
【0030】
【表3】
Figure 0003891746
【0031】
実施例8火棘抽出物の粉末化
実施例1の方法に従い濾過して得られる抽出液の固形分1重量部に対して、デキストリン2重量部を加え噴霧乾燥することによって、火棘抽出物の粉末品を得た。また、1カプセルあたり火棘粉末品を0.5g含むように00号のハードカプセルに充填した。
【0032】
実施例9錠剤の作成
実施例8で得られた火棘粉末70重量部、結晶性セルロース26重量部及びショ糖脂肪酸エステル4重量部をよく混合し、打錠機(ハタ製作所)によって、1粒あたり250mgの錠剤を作成した。
【0033】
実施例10飴の作成
砂糖98g、水飴(固形分75%)90.7g及び実施例1の方法に従い濾過して得られる抽出液を固形分40%になるよう減圧濃縮して得られる火棘濃縮液(固形分40%)75gを良く混合し、水分が2%になるまで煮詰め、1粒あたり2gの飴(固形分換算で0.3gの火棘抽出物を含有)を作成した。
【0034】
実施例11人を用いた美白作用の検討
健康な成人男性5名に実施例8で得られたカプセルを毎日朝昼晩2錠ずつ摂取してもらい、8 日目に背部左下部分に紫外線照射を行なった。紫外線は医療用紫外線照射装置(デルマレイ製)を用いて168.6mJ/cm2 のUVB を、直径18mmの円形に照射した。対照として、同じ被験者が検体摂取しない期間に、同量の紫外線を背部右下部分に照射した。照射してから7日後に、ダーマスペクトロメーター(Cortex-Technology 製)を用い、照射部位のメラニン値を求め、色素沈着抑制効果の指標とし、火棘摂取期間のメラニン値が対照期間のメラニン値より2以上下がったものを○、差がないものを△として判定した。結果を表4に示す。
表4に示すとおり、本発明の組成物は皮膚色の改善に経口投与で有効であることが判明した。
【0035】
【表4】
Figure 0003891746
【0036】
【発明の効果】
本発明により、飲食品等により簡便に経口摂取でき、シミ・ソバカス等を予防または治療し、色素の沈着を抑制することにより、優れた美白効果を有する経口投与用美白組成物を提供することができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a whitening composition suitable for oral administration by food or drink. The present invention also relates to a whitening agent for oral administration containing the composition and use thereof.
[0002]
[Prior art]
Conventionally, white skin is recognized as beautiful skin. Hydroquinone and its glycosides (for example, arbutin), kojic acid and its derivatives, for the purpose of preventing or treating spots and freckles and obtaining white skin, Whitening cosmetics containing a substance having tyrosinase inhibitory activity such as ascorbic acid and derivatives thereof, thiol compounds, various animal and plant extracts have been proposed.
[0003]
In addition, it has been known that the extract of fire thorn (Pyracantha fortuneana) and tachibanamodoki (Pyracantha angusutifolia) has a tyrosinase inhibitory activity and is a whitening cosmetic composition having an excellent whitening effect (Patent No. 1). 2749218).
In recent years, awareness of whitening has further increased, and it has become desirable to provide a whitening agent that can be easily taken orally not only by conventional cosmetics but also by foods and beverages.
[0004]
However, it is unclear whether substances conventionally used in whitening cosmetics have the same effect as cosmetics even when taken orally. And only thiol compounds are known. Moreover, it was difficult to say that these were sufficiently effective due to problems of stability and absorbability.
[0005]
[Problems to be solved by the invention]
Therefore, the present inventors have made it an object to provide a whitening composition that is effective and safe for oral administration under such circumstances.
[0006]
[Means for Solving the Problems]
From the viewpoint of safety, the present inventors have intensively studied plants that exert a whitening effect by oral administration from among those that have eaten so far, and as a result, Rosaceae Pyracantha plants are effective. I found out. Specifically, the extracts of Pyracantha fortuneana and Pyracantha angusutifolia fruits in water, ethanol, or a mixture of these fruits exhibit whitening effects when administered orally. The present invention has been completed.
[0007]
In addition, it is clear that the effectiveness differs depending on the administration form of direct application to the skin with cosmetics etc. with a whitening effect and oral administration by food and drink, but the difference is briefly described below. Let's talk about.
Cosmetics are applied directly to the skin surface, and most of the cosmetic ingredients remain on the skin surface and perform their original functions without impairing the physiological function of the skin.
[0008]
On the other hand, in oral administration, a substance having a whitening effect is first dissolved in the gastrointestinal fluid and absorbed from the stomach or small intestine. What is absorbed from the small intestine enters mainly from the portal vein into the liver and veins, circulates throughout the body through the heart, reaches each site in the body, and is taken into the cells of each tissue.
Therefore, it is unclear whether or not a substance effective in cosmetics has the same effect as that of cosmetics even in oral administration.
[0009]
In fact, arbutin and ascorbic acid have tyrosinase inhibitory activity and have been used as whitening cosmetics, which are superior to conventional ones, but the whitening effect is low in oral administration. It is clear that the effects are different.
Also in the present invention, among the fractions of the fire spine extract, the fraction with strong tyrosinase inhibitory activity in vitro has a weak whitening activity by oral administration, and conversely has a weak tyrosinase inhibitory activity in vitro. The present invention has been completed by finding that whitening exhibits whitening activity by oral administration.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The Chinese name “Pyracantha fortuneana” used in the present invention is known as the Chinese name “red proton”, and its effects and effects such as keeping the spleen healthy and curing indigestion are known. Pyracantha angusutifolia is a shrub native to the same genus Pyracantata as fire thorns, and is used as a garden tree in Japan.
In the present invention, solvent extracts of these plants are used, but it is preferable to use solvent extracts of the fruits of these plants.
[0011]
The solvent used for the extraction of the active ingredient from these plants is not particularly limited as long as the active ingredient can be effectively extracted, but water, lower alcohols such as methanol and ethanol, or those In view of safety, it is more preferable to use water or ethanol or a mixture thereof.
[0012]
When extracting with water, normal temperature water can be used, but it is preferable to use hot water, for example, hot water of 60 ° C to 100 ° C. Moreover, when using organic solvents, such as methanol and ethanol, you may extract at normal temperature, or you may heat-extract at the temperature below the boiling point of this organic solvent. Moreover, when using the liquid mixture of organic solvents, such as methanol and ethanol, and water, you may extract at normal temperature, or you may heat-extract at the temperature below the boiling point of this solvent.
[0013]
Moreover, in order to mix | blend an active ingredient with high concentration, it is also possible to refine | purify and use an extract by means, such as concentration, liquid-liquid distribution, adsorption chromatography. For example, a synthetic adsorbent, for example, an aromatic synthetic adsorbent such as styrene-divinylbenzene can be used as the adsorbent when performing the adsorption chromatography on the extract of the present invention. Specific examples of the aromatic synthetic adsorbent include Diaion HP-20 (trade name, manufactured by Mitsubishi Kasei Kogyo Co., Ltd.). Furthermore, Diaion HP-21 (trade name, manufactured by Mitsubishi Kasei Kogyo Co., Ltd.), Amberlite XAD 2 and XAD 4 (both trade names, manufactured by Rohm and Haas) can be used, but are not limited thereto. .
[0014]
When Diaion HP-20 is used, it is preferable to use the extract obtained by applying the extract to the column filled with the adsorbent and washing the flown liquid and the column with water. Moreover, when eluting using an organic solvent, the fraction obtained by eluting with the mixture of an organic solvent and water, for example, 20-80 v / v% methanol or ethanol aqueous solution, can be used.
[0015]
The whitening composition for oral administration of the present invention thus obtained is a composition for oral administration which is effective for the prevention or treatment of spots, freckles and the like and has an excellent whitening effect, and is a tablet, capsule or granule. Can be ingested as it is, or can be ingested by mixing with foods and drinks such as rice cakes, gummi, and beverages, but the form is not limited.
In addition, the daily intake per adult adult of the extract used in the present invention depends on age, health condition, weight, etc., but 0.01 g to 20.0 g in terms of solid content of the crude extract, Preferably 0.1 g to 10.0 g is ingested.
[0016]
【Example】
EXAMPLES Next, although an Example demonstrates this invention further in detail, the scope of the present invention is not limited only to these.
Example 1 . Hot water extract of fire spine fruit 5.00 g of dried hot spine fruit is immersed in 50 ml of hot water at 90C, boiled for 3 hours, filtered, and the resulting extract is concentrated under reduced pressure. A crude extract (1.33 g in terms of solid content) was obtained.
[0017]
Example 2 . Extraction of fire spine fruit in water / ethanol mixture 5.00 g of dried dried fruit of fire spine was immersed in 50 ml of 50% ethanol aqueous solution for 1 week and filtered, and the resulting extract was concentrated under reduced pressure to obtain a crude extract. (1.08 g in terms of solid content) was obtained.
[0018]
Example 3 . Hot water extraction of Tachibanamodoki fruit 5.00 g of dried Tachibanamodoki fruit is immersed in 50 ml of hot water at 90C, boiled for 3 hours and filtered, and the resulting extract is concentrated under reduced pressure to obtain a crude extract. (1.21 g in terms of solid content) was obtained.
[0019]
Example 4 . Fractionation of hot thorn fruit hot water extract The fire thorn fruit crude extract (solid content: 6.09 g) obtained by the method of Example 1 was dissolved in 600 ml of water, and Diaion HP- After loading on 20 columns (Φ3 cm × 11 cm, Vt = 80 ml), it was washed with 800 ml of water. The passing liquid and the washing liquid were collected, concentrated under reduced pressure, and then lyophilized to obtain 5.13 g of a solid (first fraction).
Subsequently, the column was eluted with 400 ml of 20% ethanol aqueous solution, and the eluate was concentrated under reduced pressure and lyophilized to obtain 0.22 g of a solid (second fraction).
[0020]
The column was then eluted with 400 ml of 40% aqueous ethanol, and the eluate was concentrated under reduced pressure and lyophilized to give 0.49 g of a solid (third fraction).
Next, the column was eluted with 400 ml of 80% ethanol aqueous solution, and the eluate was concentrated under reduced pressure and lyophilized to obtain 4 mg of a solid (fourth fraction).
The recovery rate for the first to fourth fractions was 96% in total.
[0021]
Example 5 . Measurement of tyrosinase inhibitory activity Tyrosinase inhibitory activity was measured as follows.
50 mM potassium-sodium phosphate buffer (pH 6.8) 1.00 ml
L-tyrosine (Nacalai Tesque) 0.5 mg / ml aqueous solution (1) 0.25 ml
Sample aqueous solution (2) (samples of Examples 1 to 4 and samples adjusted to various concentrations for arbutin) 1.00 ml
[0022]
These were mixed well and allowed to stand at 30 ° C. for 10 minutes, then 0.25 ml of mushroom-derived tyrosinase (Sigma) 0.1 mg / ml aqueous solution was added, and at 30 ° C. for about 12 minutes (the absorbance of the control was 0.5). About) After the reaction, the absorbance A was measured at 475 nm. At the same time, the absorbance B when an equal amount of water was added instead of the sample aqueous solution (2) and the absorbance C when water was used instead of the L-tyrosine aqueous solution (1) were measured. The inhibition rate was calculated from the absorbance of A, B and C by the following formula.
Inhibition rate (%) = (B− (A−C)) / B × 100
Tyrosinase inhibitory activity was measured for each sample by this measurement method, and Table 1 shows the sample concentration (IC50) when the inhibition rate is 50%. As is clear from Table 1, all of the substances other than the first fraction of Example 4 had tyrosinase inhibitory activity.
[0023]
[Table 1]
Figure 0003891746
[0024]
Example 6 . Examination of whitening effect using mouse (1)
0.04 mg, 0.12 mg, 0.40 mg or 10 mg of the crude extract obtained in Example 1 was dissolved in water (0.2 ml), and each was orally administered to mice (6 mice in each group) once a day. After that, ultraviolet rays (UVB) of 180 mJ / cm 2 were irradiated. As a control group, water was administered instead of the fire spine extract. As a comparative example, 0.67 mg of ascorbic acid was used. After this was continued for 10 days, the mouse auricle was collected, and the epidermis was dopa-stained to prepare a slide specimen. Table 2 shows the results of counting the number of dopa-positive melanocytes for 5 specimens.
[0025]
As shown in Table 2, the fire spine extract decreased the number of dopa-positive melanocytes (with a significant difference of P <0.05 compared to the control at 0.12 mg or more). From this result, the whitening effect by oral ingestion of the fire thorn extract was clarified. In addition, ascorbic acid conventionally used for whitening cosmetics showed a decrease in the number of dopa-positive melanocytes, but no significant difference from the control.
[0026]
[Table 2]
Figure 0003891746
[0027]
Example 7 . Examination of whitening effect using mouse (2)
The fraction of fire spine obtained in Example 4 was used in an approximate abundance ratio (10: 1: 1) in the crude extract, that is, 10 mg of the first fraction, 1 mg of the second fraction, and 1 mg of the third fraction. Was dissolved in water (0.2 ml) and orally administered to mice (n = 6 in each group) once a day, followed by irradiation with 180 mJ / cm 2 of UVB. In the control group, water was administered instead of each fraction of fire thorn. As a comparative example, 12 mg of arbutin was used. After this was continued for 10 days, the mouse auricle was collected, and the epidermis was dopa-stained to prepare a slide specimen. Table 3 shows the results of counting the number of dopa-positive melanocytes for 5 specimens.
[0028]
The first fraction of fire spine extract that had no tyrosinase inhibitory activity in Example 5 significantly reduced the number of dopa-positive melanocytes (with a significant difference of P <0.05). On the other hand, the second fraction, the third fraction and arbutin having strong tyrosinase inhibitory activity tended to decrease the number of dopa-positive melanocytes, but no significant difference was observed.
From this result, it became clear that the main body of the whitening effect | action by oral ingestion of a fire spine extract is mainly contained in the 1st fraction. It was also revealed that the strength of tyrosinase inhibitory activity and the strength of oral whitening activity do not match.
[0029]
In addition, since the coarse spiked extract (10 mg / day) in Example 6 and the first fraction (10 mg / day) of the coarse spiked extract in Example 7 have substantially the same activity, Since it was thought that fractions other than one fraction did not interfere with oral whitening activity, in the following examples, the extract obtained in Example 1 was used.
[0030]
[Table 3]
Figure 0003891746
[0031]
Example 8 . Powdered fire spine extract By adding 2 parts by weight of dextrin to 1 part by weight of the solid content of the extract obtained by filtration according to the method of Example 1, sprayed spine extract A powder product was obtained. Also, No. 00 hard capsules were filled so as to contain 0.5 g of hot thorn powder per capsule.
[0032]
Example 9 . Preparation of tablets 70 parts by weight of the fire spine powder obtained in Example 8, 26 parts by weight of crystalline cellulose and 4 parts by weight of sucrose fatty acid ester were mixed well, and 1 tablet was obtained using a tableting machine (Hata Seisakusho). 250 mg tablets per grain were made.
[0033]
Example 10 . Candy creation <br/> sugar 98 g, syrup (solids 75%) 90.7 g and Example 1 of the filtered a solid content of 40% extract obtained as in accordance with the method Hitoge obtained by concentration under reduced pressure 75 g of the concentrated liquid (solid content 40%) was mixed well and boiled until the water content became 2% to prepare 2 g of persimmon (containing 0.3 g of fire thorn extract in terms of solid content).
[0034]
Example 11 Examination of whitening effect using humans 5 healthy adult men took 2 capsules of the capsule obtained in Example 8 every day in the morning and night, and on the 8th day, UV irradiation was applied to the lower left part of the back Was done. Ultraviolet rays were irradiated in a circular shape having a diameter of 18 mm with 168.6 mJ / cm 2 of UVB using a medical ultraviolet irradiation device (manufactured by Delmale). As a control, the same amount of ultraviolet light was irradiated to the lower right portion of the back during a period when the same subject did not ingest the sample. Seven days after irradiation, a derma spectrometer (Cortex-Technology) was used to determine the melanin level at the irradiated site, which was used as an indicator of the pigmentation inhibitory effect. Judged as ◯ when the value was 2 or more, and Δ when there was no difference. The results are shown in Table 4.
As shown in Table 4, it was found that the composition of the present invention is effective by oral administration for improving skin color.
[0035]
[Table 4]
Figure 0003891746
[0036]
【The invention's effect】
According to the present invention, it is possible to provide a whitening composition for oral administration having an excellent whitening effect, which can be easily orally ingested by foods and drinks, etc., prevents or treats spots and freckles, and suppresses pigmentation. it can.

Claims (6)

バラ科ピラカンタ属(Rosaceae pyracantha)植物から水、メタノール、エタノール又はこれらの混合物により抽出される抽出物であって、芳香族系合成吸着剤に吸着される成分を除去したものを有効成分とする経口投与用美白組成物。  An extract extracted from a plant of Rosaceae pyracantha with water, methanol, ethanol, or a mixture thereof, with the active ingredient removed from the component adsorbed on the aromatic synthetic adsorbent Whitening composition for administration. 前記抽出が常温〜当該抽出溶媒の沸点の範囲の何れかの温度により行われる、請求項1に記載の経口投与用美白組成物。  The whitening composition for oral administration according to claim 1, wherein the extraction is performed at a temperature ranging from room temperature to the boiling point of the extraction solvent. 前記植物がバラ科ピラカンタ属の果実である、請求項1又は2に記載の経口投与用美白組成物。  The whitening composition for oral administration of Claim 1 or 2 whose said plant is the fruit of the Rosaceae pyracantha genus. 前記バラ科ピラカンタ属(Rosaceae pyracantha)植物が、火棘(Pyracantha fortuneana)又はタチバナモドキ(Pyracantha angusutrifolia)である、請求項1〜3のいずれか1項に記載の経口投与用美白組成物。  The whitening composition for oral administration according to any one of claims 1 to 3, wherein the Rosaceae pyracantha plant is Pyracantha fortuneana or Pyracantha angusutrifolia. 前記抽出物が火棘の熱水抽出物である、請求項1〜4のいずれか1項に記載の経口投与用美白組成物。  The whitening composition for oral administration of any one of Claims 1-4 whose said extract is a hot water extract of a fire thorn. 火棘の熱水抽出物を、芳香族系合成吸着剤を用いる吸着クロマトグラフィーに負荷し、カラムを通過した画分及びカラムを水で洗浄して得られる画分を含有する、請求項1〜5のいずれか1項に記載の経口投与用美白組成物。  The hot thorn hot water extract is loaded onto an adsorption chromatography using an aromatic synthetic adsorbent and contains a fraction that has passed through the column and a fraction obtained by washing the column with water. The whitening composition for oral administration according to any one of 5 above.
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NZ512525A NZ512525A (en) 1999-11-12 2000-11-10 Skin whitening compositions for oral administration comprising a solvent extract from the plant of the genus Rosaceae Pyracantha
MYPI20005299A MY127449A (en) 1999-11-12 2000-11-10 Whitening compositions for oral administration
IDW00200101500Q ID29104A (en) 1999-11-12 2000-11-10 COMPOSITION OF SKIN BLEACH FOR ORAL GIVING
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