JPH0459714A - Tyrosinase activity inhibitor - Google Patents

Tyrosinase activity inhibitor

Info

Publication number
JPH0459714A
JPH0459714A JP2169637A JP16963790A JPH0459714A JP H0459714 A JPH0459714 A JP H0459714A JP 2169637 A JP2169637 A JP 2169637A JP 16963790 A JP16963790 A JP 16963790A JP H0459714 A JPH0459714 A JP H0459714A
Authority
JP
Japan
Prior art keywords
lactoferrin
tyrosinase activity
apolactoferrin
milk
iron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2169637A
Other languages
Japanese (ja)
Other versions
JP2702590B2 (en
Inventor
Mamoru Tomita
守 冨田
Seiichi Shimamura
島村 誠一
Hiroshi Miyagawa
博 宮川
Susumu Kobayashi
進 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Morinaga Milk Industry Co Ltd
Original Assignee
Morinaga Milk Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Morinaga Milk Industry Co Ltd filed Critical Morinaga Milk Industry Co Ltd
Priority to JP2169637A priority Critical patent/JP2702590B2/en
Publication of JPH0459714A publication Critical patent/JPH0459714A/en
Application granted granted Critical
Publication of JP2702590B2 publication Critical patent/JP2702590B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To obtain the subject stable and safe formulation containing lactoferrin selected from lactoferrin, apolactoferrin, metal-saturated lactoferrin and any mixture of said lactoferrins separated from milk of mammal as an active ingredient. CONSTITUTION:The subject formulation contains >=0.5wt.% (preferably 1.0-2.0wt.%) lactoferrin selected from lactoferrin separated from milk of mammal by a method such as ion-exchange chromatography, apolactoferrin removed iron from said lactoferrin, metal-saturated lactoferrin chelating iron, copper, zinc or manganese, etc., to said lactoferrin and any mixture of said lactoferrins. Although said formulation may be lactoferrin itself, for instance, dissolving in purified water and suitably mixing with emulsifier, shaping agent, food such as flavor, cosmetic or a substance allowable as a component of medical drug, then able to be used in emulsifying or dispersing. Said formulation has excellent whitening effect.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、哺乳類の乳汁から分離したラクトフェリン、
アポラクトフェリン、金属飽和ラクトフェリン、及びこ
れらの任意の混合物からなる群より選択されるラクトフ
ェリンを有効成分として含有することを特徴とするチロ
シナーゼ活性阻害剤に関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention provides lactoferrin isolated from mammalian milk,
The present invention relates to a tyrosinase activity inhibitor containing as an active ingredient a lactoferrin selected from the group consisting of apolactoferrin, metal-saturated lactoferrin, and any mixture thereof.

[技術の背景及び従来技術の説明1 ラクトフエリンは、涙、唾液、抹消面、乳汁等に含まれ
ている天然の鉄結合性蛋白質であり、大腸菌、カンジダ
菌、クロストリジウム菌等の有害微生物に対して抗菌作
用を示すことか知られているか[ジャーナル・オブ・ペ
ディアトリクス(Journal Of Pediat
rics)、第94巻、第1ページ、1979年]、ラ
クトフェリンかチロシナーゼ活性阻害剤果を有すること
は従来知られていない。
[Technical Background and Description of Prior Art 1 Lactoferrin is a natural iron-binding protein contained in tears, saliva, peritoneal fluid, milk, etc., and is effective against harmful microorganisms such as Escherichia coli, Candida, and Clostridium. Is it known to exhibit antibacterial activity [Journal of Pediatrics]
rics), Volume 94, Page 1, 1979], it has not been previously known that lactoferrin has the effect of inhibiting tyrosinase activity.

チロシナーゼは、チロシン、その他の1価フェノール類
及び相当するオルソ−2価フェノール類の分子状酸素に
よる酸化を触媒する酵素であり、キノコ、ジャガイモ、
リンゴ等多くの植物及び動物組織に広く存在し、植物に
おいては切傷部分の黒変現象に関与し、動物においては
組織、特に皮膚表皮細胞のメラニン色素の形成に関与し
ていることが知られている(化学大辞典編集委員会編、
化学大辞典、第5巻、第976ページ、共立出版、昭和
35年)。アジラン病において皮膚粘膜に黒褐色のメラ
ニン色素沈着を生するのは、チロシナーゼ活性を促進す
るメラノトロピンと拮抗する副腎皮質ホルモンの分泌減
少に起因することも知られている(化学大辞典編集委員
全編、化学大辞典、第1巻、第65ページ、共立出版、
昭和35年)。
Tyrosinase is an enzyme that catalyzes the oxidation of tyrosine, other monohydric phenols, and the corresponding ortho-dihydric phenols with molecular oxygen.
It is widely present in many plant and animal tissues, such as apples, and is known to be involved in the blackening phenomenon of cut areas in plants, and in the formation of melanin pigment in tissues, especially skin epidermal cells, in animals. (edited by the Chemistry Encyclopedia Editorial Committee,
Encyclopedia of Chemistry, Volume 5, Page 976, Kyoritsu Publishing, 1960). It is also known that the dark brown melanin pigmentation on the skin mucosa in Ajilan's disease is due to the decreased secretion of melanotropin, which promotes tyrosinase activity, and adrenal cortical hormone, which competes with it. Encyclopedia of Chemistry, Volume 1, Page 65, Kyoritsu Publishing,
(Showa 35).

更にチロシナーゼは、食品の鮮度低下にも関与している
ともいわれている。
Furthermore, tyrosinase is said to be involved in reducing the freshness of foods.

上述のようIコ従来知られている食品、化粧品又は医薬
品分野において、チロシナーゼによる望ましくない作用
を防止し、予防し又は治療するためのチロシナーゼ活性
阻害剤の開発か強く望まれていた。特に化粧品業界では
、メラニン色素の生成を有効に抑制し、美白効果を付与
した化粧品又は皮膚外用剤の研究か活発であり、チロシ
ナーゼ活性阻害剤を配合した製品が次々と開発されてい
る。
As mentioned above, there has been a strong desire for the development of tyrosinase activity inhibitors for preventing, preventing or treating undesirable effects caused by tyrosinase in the conventionally known food, cosmetic or pharmaceutical fields. In particular, in the cosmetics industry, research is active into cosmetics or external skin preparations that effectively suppress the production of melanin pigment and impart a whitening effect, and products containing tyrosinase activity inhibitors are being developed one after another.

チロシナーゼ活性阻害剤としては、システィン、ヒタミ
ンC(三島豊等、基礎皮膚科学、第258ページ、朝食
書店、昭和48年)、コウジ酸(日経産業新聞、昭和6
3年5月24日)、アルブチン(富田健〜、第20回F
Jセミナー予稿集、第21ペーソ、フレグランスンヤー
ナル社、平成2年3月14日)、トリコデルマ属に属す
る微生物の産生物(特開平2−145189号公報)等
が知られている。
Examples of tyrosinase activity inhibitors include cysteine, hitamine C (Yutaka Mishima et al., Basic Dermatology, p. 258, Breakfast Shoten, 1972), kojic acid (Nikkei Sangyo Shimbun, 1978).
May 24, 2013), Arbutin (Ken Tomita ~, 20th F
J Seminar Proceedings, No. 21, Fragrance Sun Yarnal Co., March 14, 1990), and products of microorganisms belonging to the genus Trichoderma (Japanese Patent Application Laid-Open No. 145189/1999).

しかしなから、従来のチロシナーゼ活性阻害剤よ、製品
中で不安定であったり、メラニン色素を合成するメラノ
サイト細胞への作用か強すぎたり、原料の入手か困難で
あるため極めて高価であったり、いずれも欠点かあり、
安全で美白効果にすくれた化粧品又は皮膚外用剤として
満足できるものではなかった。
However, conventional tyrosinase activity inhibitors are unstable in products, have too strong effects on melanocytes that synthesize melanin pigment, and are extremely expensive because raw materials are difficult to obtain. Both have their drawbacks,
It was not satisfactory as a cosmetic product or external skin preparation that was safe and had a whitening effect.

[発明か解決しようとする課題] 本発明者等は、従来の化粧品等に認められた前記の欠点
を克服するのみならず、食品及び医薬品にも使用か可能
な安全、かつ安定なチロシナーゼ活性阻害剤について鋭
意研究した結果、哺乳類の乳汁中に存在するラクトフェ
リン、該ラクトフェリンに化学的処理を施したアポラク
トフェリン、金属飽和ラクトフェリン、又はこれらの任
意の混合物に、顕著なチロシナーゼ活性阻害剤作用のあ
ることを見出たし、本発明を完成した。
[Problem to be solved by the invention] The present inventors have devised a safe and stable tyrosinase activity inhibitor that not only overcomes the above-mentioned drawbacks observed in conventional cosmetics, but also can be used in foods and pharmaceuticals. As a result of intensive research on lactoferrin, it was found that lactoferrin present in mammalian milk, apo-lactoferrin obtained by chemically treating lactoferrin, metal-saturated lactoferrin, or any mixture thereof has a significant tyrosinase activity inhibitory effect. They discovered this and completed the present invention.

[課題を解決するための手段] 本発明において使用するラクトフェリンは、市販品、哺
乳類(例えは、人、牛、羊、山羊、馬等)の初乳、移行
乳、窩孔、末期孔等又はこれらの処理物である脱脂乳、
ホユー等(以下これらをまとめて乳等と記載する)から
常法(例えば、イオン交換クロマトグラフィー)により
分離したラクトフェリン、それらから常法により鉄を除
去したアポラクトフェリン、それらを常法により鉄、銅
、亜鉛、マンガン等の金属をキレートさせた金属飽和ラ
クトフェリン(以下これらをまとめてLFと記載する)
である。
[Means for Solving the Problems] The lactoferrin used in the present invention is a commercially available product, colostrum of mammals (e.g., humans, cows, sheep, goats, horses, etc.), transitional milk, pores, terminal pores, etc. Skim milk, which is a processed product of these,
Lactoferrin separated from whey etc. (hereinafter collectively referred to as milk etc.) by a conventional method (e.g. ion exchange chromatography), apolactoferrin from which iron is removed by a conventional method, iron and copper separated by a conventional method. , metal-saturated lactoferrin chelated with metals such as zinc and manganese (hereinafter collectively referred to as LF)
It is.

本発明のチロシナーゼ活性阻害剤は、LFそのものであ
っても良いが、LFの有効量を成分として含有している
LF配配合老若くは組成物であっても良い。例えば精製
水にLFを溶解し、必要に応じ適宜乳化剤、賦形剤、香
料などの食品、化粧品、医薬部外品又は医薬品またはそ
れらの成分として許容されている各種成分のひとつ以上
と混合いて乳化あるいは分散することかできる。LFの
荷効量は、少なくとも05%、望ましくはチロシナーゼ
活性阻害剤果か50%以上を示す1.0%〜2.0%、
である。
The tyrosinase activity inhibitor of the present invention may be LF itself, or may be an LF-containing composition containing an effective amount of LF as a component. For example, LF is dissolved in purified water and emulsified by mixing it with one or more of foods, cosmetics, quasi-drugs, or pharmaceuticals, such as emulsifiers, excipients, and fragrances, or various ingredients that are permitted as ingredients thereof. Or it can be distributed. The effective amount of LF is at least 0.5%, preferably 1.0% to 2.0%, showing a tyrosinase activity inhibitor effect of 50% or more.
It is.

次に試験例を示して本発明を詳述する。Next, the present invention will be explained in detail by showing test examples.

(試験例) この試験は、各種LFのチロシナーゼ活性阻害効果を調
へるために行われた。
(Test Example) This test was conducted to examine the tyrosinase activity inhibiting effects of various LFs.

(1)試料の調整 1)アポラクトフェリン 乳等から分離したままの市販のLF(ベルギのオレオフ
ィナ社製。以下間し)[以下の記載において1乳等から
分離したままの」なる文言は、ラクトフェリンを乳等か
ら分離したのみであって、脱鉄、金属飽和等の化学的処
理を行っていないこと(即ちアポラクトフェリン、金属
飽和ラクトフェリンでないことを意味する1 90gを
精製水2100m+2に溶解し、10%クエン酸水溶液
を添加してp)(を2.5に調整し、室温で1時間反応
させた。
(1) Preparation of sample 1) Apolactoferrin Commercially available LF (manufactured by Oleofina, Belgium) as separated from milk, etc. [In the following description, the phrase "as isolated from milk, etc." is only separated from milk, etc., and has not undergone any chemical treatment such as iron removal or metal saturation (that is, it is not apolactoferrin or metal-saturated lactoferrin). % citric acid aqueous solution was added to adjust p)( to 2.5, and the reaction was carried out at room temperature for 1 hour.

この反応生成物を限外濾過し、そのケーキを凍結乾燥し
てアポラクトフェリン約87gを調製した。
The reaction product was ultrafiltered and the cake was freeze-dried to prepare about 87 g of apolactoferrin.

2)ラクトフェリン亜鉛 前記l)のアポラクトフェリン30gを0.05Mリン
酸緩衝液(pH7−6)700mQに溶解し、これを2
.6mMクエン酸含有2゜6mM硫酸亜鉛水酸液285
m+2と、室温において15分間反応させた。
2) Lactoferrin zinc Dissolve 30 g of apo-lactoferrin from l) above in 700 mQ of 0.05 M phosphate buffer (pH 7-6), and add 2
.. 2°6mM zinc sulfate hydroxide solution containing 6mM citric acid 285
m+2 for 15 minutes at room temperature.

この反応生成物を限界濾過し、そのケーキを凍結乾燥し
てラクトフェリン亜鉛約25gを調製した。
The reaction product was ultrafiltered and the cake was freeze-dried to prepare about 25 g of zinc lactoferrin.

3)ラクトフェリン銅 前記2)において、2.5mMクエン酸含有2.6mM
硫酸亜鉛水溶液の代わりに、2゜6mMクエン酸含有2
.6mM硫酸銅水溶液を使用したこと以外は2)と同様
にしてラクトフェリン銅約24gを調製した。
3) Lactoferrin copper 2.6mM containing 2.5mM citric acid in 2) above
Instead of zinc sulfate aqueous solution, 2.6mM citric acid containing 2
.. Approximately 24 g of copper lactoferrin was prepared in the same manner as in 2) except that a 6 mM copper sulfate aqueous solution was used.

4)ラクトフェリン鉄 市販のLP(オレオフィナ社製)30gを精製水700
m12に溶解し、これを2.6’mM硫酸鉄水溶液28
5m+2と室温において24時間反応させた。この反応
生成物を限外濾過し、そのケーキを凍結乾燥してラクト
フェリン鉄約26gを調製した。
4) Lactoferrin iron 30g of commercially available LP (manufactured by Oreofina) and 700 g of purified water
m12 and add this to a 2.6'mM iron sulfate aqueous solution 28
5m+2 for 24 hours at room temperature. The reaction product was ultrafiltered and the cake was freeze-dried to prepare about 26 g of iron lactoferrin.

(3)試験方法 ■)チロシナーゼ活性阻害効果の測定 a)各種溶液の調製 ■基質溶液の調製 試薬特級のし一チロシン(和光紬薬工業社製)を0.1
Mリン酸緩衝液に0.045%(W/V)の濃度で溶解
した。
(3) Test method ■) Measurement of tyrosinase activity inhibition effect a) Preparation of various solutions ■ Preparation of substrate solution Reagent Special grade Noshiichi tyrosine (manufactured by Wako Tsumugi Pharmaceutical Co., Ltd.) at 0.1
It was dissolved in M phosphate buffer at a concentration of 0.045% (W/V).

■酵素溶液の調製 マツシュルーム由来のチロシナーゼ(シグマ社製。3.
000単位/ m g )を0.1Mリン酸緩衝液(p
H7,0)にO,1%(W;/ V )の濃度で溶解し
た。
■Preparation of enzyme solution Tyrosinase derived from pine mushroom (manufactured by Sigma. 3.
000 units/mg) in 0.1 M phosphate buffer (p
It was dissolved in H7,0) at a concentration of O,1% (W;/V).

■銅イオン溶液の調製 試薬特級の硫酸銅(和光紬薬工業社製)を精製水に1%
(W/V)の濃度で溶解した。
■Preparation of copper ion solution Add 1% reagent special grade copper sulfate (manufactured by Wako Tsumugi Kogyo Co., Ltd.) to purified water.
(W/V).

■試料溶液の調製 前期(1)において調製した各試料を表1に示した各濃
度でO,1MIJン酸暖衝液(pH7゜0)に溶解した
(2) Preparation of sample solutions Each of the samples prepared in the first step (1) was dissolved in O, 1MIJ acid buffer solution (pH 7.0) at each concentration shown in Table 1.

b)酸素反応 予め37°Cに加温した基質溶液0.9mQ、試料溶液
1.0mρ、銅イオン溶液0.02mρを試験管に採取
し、同温度に加温した酵素溶液0゜08m4を添加し、
(全量2.0rrl) 、37°Cで3分間反応させた
。次いで30%酢酸溶液2mQを添加して反応を停止き
せ、分光光度計で波長640nmでの吸殉度を測定した
。(この吸光値をBとする)。対照として試料溶液の代
わりにO,1Mリン酸緩衝液1.0mffを添加して同
様に吸光度を測定した(この吸光値をAとする)。尚、
試験溶液が白濁している場合は、酵素溶液の代わりに0
.1Mリン酸緩衝液0゜08mQを添加して同様に吸光
度を測定しくこの吸光値をCとする)、反応液の濁り部
分に由来する吸光度を除去した。測定された各吸光値か
らチロシナーゼ活性阻害率(%)を次式により算出した
b) Oxygen reaction 0.9 mQ of the substrate solution, 1.0 mρ of the sample solution, and 0.02 mρ of the copper ion solution preheated to 37°C are collected in a test tube, and 0°08 m4 of the enzyme solution heated to the same temperature is added. death,
(Total volume: 2.0 rrl) and reacted at 37°C for 3 minutes. Next, 2 mQ of 30% acetic acid solution was added to stop the reaction, and the absorbance intensity at a wavelength of 640 nm was measured using a spectrophotometer. (This absorbance value is designated as B). As a control, 1.0 mff of O, 1M phosphate buffer was added instead of the sample solution, and the absorbance was measured in the same manner (this absorbance value was designated as A). still,
If the test solution is cloudy, use 0 instead of the enzyme solution.
.. 0.08 mQ of 1M phosphate buffer was added and the absorbance was measured in the same manner (this absorbance value was designated as C) to remove the absorbance originating from the turbid part of the reaction solution. Tyrosinase activity inhibition rate (%) was calculated from each measured absorbance value using the following formula.

阻害率(%)=lOO[1−(B−C)/A](3)試
験結果 この試験の結果は表1に示すとおりであった。
Inhibition rate (%) = lOO[1-(B-C)/A] (3) Test results The results of this test were as shown in Table 1.

(注)チロシナーゼ活性阻害率(%) 表1から明らかなようにラクトフェリン、ラクトフェリ
ンに結合している鉄を除去したアポラクトフェリン、ア
ポラクトフェリンに亜鉛、□銅、鉄をそれぞれ結合させ
たラクトフェリン亜鉛、ラクトフェリン銅、ラクトフェ
リン鉄は、いずれも011%の添加で約lO%のチロシ
ナーゼ活性阻害効果を示した。阻害効果は添加量が増大
するにつれて向上し、1%の添加で約50%、2%の添
加で約80%の阻害率を示した。なお、これらのラクト
フェリン類の間には阻害率に有意な差は認められなかっ
た。
(Note) Tyrosinase activity inhibition rate (%) As is clear from Table 1, lactoferrin, apolactoferrin from which the iron bound to lactoferrin has been removed, lactoferrin from which zinc, □ copper, and iron are bound to apolactoferrin, zinc, and lactoferrin Copper and lactoferrin iron both exhibited an inhibitory effect on tyrosinase activity of about 10% when added at 0.11%. The inhibitory effect improved as the amount added increased, and the inhibition rate was about 50% with 1% addition and about 80% with 2% addition. Note that no significant difference in inhibition rate was observed between these lactoferrins.

次に実施例を示して本発明を更に詳述する。Next, the present invention will be explained in further detail by showing examples.

実施例I 市販のLF(オレオフィナ社製)270gを精製水63
00mffに溶解した後、10%クエン酸水溶液を添加
してそのpHを2.5に調整し、室温において1時間反
応させた。この反応生成物を限外濾過し、そのケーキを
凍結乾燥してアポラクトフェリン約260gを得た。こ
のアポラクトフェリン200 g、グリシン(和光紬薬
工業社製)700g及びリゾチーム(和光紬薬工業)1
00gを均一に混合し、食品の鮮度保持用のチロシナー
活性阻害剤約1000gを得た。
Example I 270 g of commercially available LF (manufactured by Oleofina) was mixed with 63 g of purified water.
After dissolving in 00 mff, a 10% aqueous citric acid solution was added to adjust the pH to 2.5, and the mixture was reacted at room temperature for 1 hour. The reaction product was ultrafiltered and the cake was freeze-dried to obtain about 260 g of apolactoferrin. 200 g of this apolactoferrin, 700 g of glycine (manufactured by Wako Tsumugi Pharmaceutical Co., Ltd.) and 1 gram of lysozyme (manufactured by Wako Tsumugi Pharmaceutical Co., Ltd.)
00g were mixed uniformly to obtain about 1000g of a tyrosiner activity inhibitor for preserving the freshness of foods.

得られた食品の鮮度保持用のチロシナーゼ活性阻害剤を
10%の濃度で水に溶解し、チロ/ナゼ活性阻害率を試
験例と同一の方法で測定した結果、82%であった。
The obtained tyrosinase activity inhibitor for preserving food freshness was dissolved in water at a concentration of 10%, and the inhibition rate of tyrosinase activity was measured in the same manner as in the test example, and the result was 82%.

実施例2 実施例1で得たアポラクトフェリン60gを0゜05M
リン酸暖衝液(pH7,6)1400mcに溶解し、こ
れを2.6mMクエン酸含有2.6mM硫酸銅水溶液5
70m(lと、室温において15分間反応させた。この
反応生成物を限外濾過し、そのケーキを凍結乾燥してラ
クトフェリン銅約50gを調製した。
Example 2 60g of apolactoferrin obtained in Example 1 was added to 0°05M
Dissolved in 1400mc of phosphoric acid warm solution (pH 7,6), and added 2.6mM copper sulfate aqueous solution containing 2.6mM citric acid.
The reaction product was ultrafiltered and the cake was freeze-dried to prepare about 50 g of copper lactoferrin.

このラクトフェリン銅40g、 プロピレングリコール
(和光紬薬工業社製)200g、オレイルアルコール(
和光紬薬工業社製)2g、エタノール(和光紬薬工業社
製)100g及び精製水1658gを均一に混合し、化
粧品用チロシナーゼ活性阻害剤約2000gを得た。
40 g of this lactoferrin copper, 200 g of propylene glycol (manufactured by Wako Tsumugi Kogyo Co., Ltd.), and oleyl alcohol (
(manufactured by Wako Tsumugi Kogyo Co., Ltd.), 100 g of ethanol (manufactured by Wako Tsumugi Kogyo Co., Ltd.), and 1,658 g of purified water were uniformly mixed to obtain about 2,000 g of a tyrosinase activity inhibitor for cosmetics.

得られた化粧品用チロシナーゼ活性阻害剤のチロシナー
ゼ活性阻害率を試験例と同一の方法で測定した結果、見
掛けの阻害率は51%であったが、濃度換算を行った実
際の阻害率は81%であった。
The tyrosinase activity inhibition rate of the obtained cosmetic tyrosinase activity inhibitor was measured using the same method as in the test example, and the apparent inhibition rate was 51%, but the actual inhibition rate when converted to concentration was 81%. Met.

実施例3 市販のLF(オレオフィナ社製)90gを精製水210
0mQに溶解し、これを2.6m(2硫酸鉄水溶液75
5mQと室温において24時間反応させた。この反応生
成物を限外濾過し、そのケーキを凍結乾燥してラクトフ
ェリン鉄約78gを調製しl二。このラクトフェリン鉄
60g1 ヒアルロン酸ナトリウム(和光紬薬工業社製
)2g、グリセリン(和光紬薬工業社製)20g及び精
製水1918gを均一に混合し、化粧品用チロシナーゼ
活性阻害剤約2000gを得た。
Example 3 90 g of commercially available LF (manufactured by Oleofina) was mixed with 210 g of purified water.
Dissolve in 0 mQ, add 2.6 m (2 iron sulfate aqueous solution 75
It was reacted with 5mQ at room temperature for 24 hours. The reaction product was ultrafiltered, and the cake was freeze-dried to prepare about 78 g of iron lactoferrin. 60 g of this lactoferrin iron, 2 g of sodium hyaluronate (manufactured by Wako Tsumugi Kogyo Co., Ltd.), 20 g of glycerin (manufactured by Wako Tsumugi Kogyo Co., Ltd.) and 1918 g of purified water were uniformly mixed to obtain about 2000 g of a tyrosinase activity inhibitor for cosmetics.

得られた化粧品用チロシナーゼ活性阻害剤のチロシナー
ゼ活性阻害率を試験例と同一の方法で測定した結果、見
掛けの阻害率は75%であったが、濃度換算を行った実
際の阻害率は90%であった。
The tyrosinase activity inhibition rate of the obtained cosmetic tyrosinase activity inhibitor was measured using the same method as the test example, and the apparent inhibition rate was 75%, but the actual inhibition rate when converted to concentration was 90%. Met.

[発明の効果] 本発明によって奏せられる効果は次のとおりである。[Effect of the invention] The effects achieved by the present invention are as follows.

(1)本発明のチロシナーゼ活性阻害剤は各種製品に添
加しても安定であり、すぐれた作用か得られる。
(1) The tyrosinase activity inhibitor of the present invention is stable even when added to various products, and provides excellent effects.

(2)本発明のチロ/カーゼ活性阻害剤は液状又は粉末
状のいずれの状態も使用できるので、用途か広範である
(2) The tyro/case activity inhibitor of the present invention can be used in either liquid or powder form, so it has a wide range of uses.

Claims (2)

【特許請求の範囲】[Claims] (1)噛乳類の乳汁から分離したラクトフェリン、アポ
ラクトフェリン、金属飽和ラクトフェリン、及びこれら
の任意の混合物からなる群より選択されるラクトフェリ
ンを有効成分として含有することを特徴とするチロシナ
ーゼ活性阻害剤。
(1) A tyrosinase activity inhibitor containing as an active ingredient lactoferrin selected from the group consisting of lactoferrin isolated from the milk of chewing mammals, apolactoferrin, metal-saturated lactoferrin, and any mixture thereof.
(2)有効成分が少なくとも0.5%(重量)の濃度で
含有されている請求項(1)記載のチロシナーゼ活性阻
害剤。
(2) The tyrosinase activity inhibitor according to claim (1), wherein the active ingredient is contained in a concentration of at least 0.5% (by weight).
JP2169637A 1990-06-26 1990-06-26 Tyrosinase activity inhibitor Expired - Lifetime JP2702590B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2169637A JP2702590B2 (en) 1990-06-26 1990-06-26 Tyrosinase activity inhibitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2169637A JP2702590B2 (en) 1990-06-26 1990-06-26 Tyrosinase activity inhibitor

Publications (2)

Publication Number Publication Date
JPH0459714A true JPH0459714A (en) 1992-02-26
JP2702590B2 JP2702590B2 (en) 1998-01-21

Family

ID=15890188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2169637A Expired - Lifetime JP2702590B2 (en) 1990-06-26 1990-06-26 Tyrosinase activity inhibitor

Country Status (1)

Country Link
JP (1) JP2702590B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008032847A1 (en) * 2006-09-11 2008-03-20 Up Well Co. Ltd. External preparation for skin
JP2008532513A (en) * 2005-03-08 2008-08-21 フォンテラ コ−オペレイティブ グループ リミティド High-pressure treatment of metal ion lactoferrin
JP2008290975A (en) * 2007-05-25 2008-12-04 Snow Brand Milk Prod Co Ltd Skin whitening agent

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008532513A (en) * 2005-03-08 2008-08-21 フォンテラ コ−オペレイティブ グループ リミティド High-pressure treatment of metal ion lactoferrin
WO2008032847A1 (en) * 2006-09-11 2008-03-20 Up Well Co. Ltd. External preparation for skin
JPWO2008032847A1 (en) * 2006-09-11 2010-01-28 株式会社アップウェル Topical skin preparation
JP2008290975A (en) * 2007-05-25 2008-12-04 Snow Brand Milk Prod Co Ltd Skin whitening agent
WO2008146710A1 (en) * 2007-05-25 2008-12-04 Snow Brand Milk Products Co., Ltd. Skin whitening agent

Also Published As

Publication number Publication date
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