JP2004196664A - Moisturizer and cosmetics containing it - Google Patents
Moisturizer and cosmetics containing it Download PDFInfo
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Abstract
【課題】アロエの有する保湿作用をより高めると共に皮膚刺激性を無くした、使用感の優れた保湿剤やこれを含有する化粧料を提供すること。
【解決手段】アロエに乳酸菌の一種又は二種以上を作用させて得られる発酵生成物を有効成分とする保湿剤およびこれを含有する化粧料。
【選択図】 なしAn object of the present invention is to provide a moisturizing agent having enhanced feeling of use, which has enhanced moisturizing action of aloe and has no skin irritation, and a cosmetic containing the same.
A humectant containing, as an active ingredient, a fermentation product obtained by allowing one or more lactic acid bacteria to act on aloe and a cosmetic containing the same.
[Selection diagram] None
Description
【0001】
【発明の属する技術分野】
本発明は皮膚の水分保持能に優れた保湿剤及びこれを含有する使用感の優れた化粧料に関する。
【0002】
【従来の技術】
従来、アロエは、育毛、紫外線防御、抗炎症、抗チロシナーゼ、保湿、毛髪保護、増粘等の目的で使用されており、これを含有する化粧料は多数報告されている(例えば、非特許文献1を参照)。このアロエから得た添加成分は、アロインを主とするアントラキノン類を有効成分とするものが多いことから、皮膚刺激性を有していた(例えば、非特許文献2参照)。また、アロエより多糖類を抽出して用いる場合もあったが、これらの保湿作用は弱く十分なものではなかった(例えば、特許文献1参照)。
【0003】
一方、抽出工程の迅速化及び特異臭の低減を目的として、アロエに酵母を加えて発酵させた皮膚外用剤も報告されているが(例えば、特許文献2及び3参照)、酵母を用いるときは、糖類を添加しなければ発酵が十分に進行せず、得られた発酵生成物は残存糖の影響で、腐敗しやすかったりベタツキ感があるといった問題があった。また、アロエの発酵に酵母を用いたときには特有の発酵臭がすることから、商品の嗜好性を下げるといった問題もあった。
【0004】
【特許文献1】特願昭58−197175号公報
【特許文献2】特願昭58−197175号公報
【特許文献3】特開昭60−087207号公報
【非特許文献1】前田憲寿他、「Fragrance Journal臨時増刊」、No.16、p83−84、1999
【非特許文献2】鈴木正人監修、「新しい化粧品素材の効能・効果・作用(下)」、シーエムシー、p395−397、1998
【0005】
【発明が解決しようとする課題】
従って本発明の課題は、アロエの有する保湿作用をより高めると共に皮膚刺激性を無くした、使用感の優れた保湿剤やこれを含有する化粧料を提供することにある。
【0006】
【課題を解決するための手段】
かかる実状において、本発明者らは上記の課題を解決すべく鋭意研究した結果、アロエに乳酸菌を作用せしめて得られる発酵生成物が、皮膚角質層の水分含有量を高めること、また、このものは種々の使用感に優れていることを見いだし、本発明を完成した。
【0007】
すなわち、本発明はアロエに乳酸菌の一種又は二種以上を作用させて得られる発酵生成物を有効成分とする保湿剤を提供するものである。
【0008】
また、本発明は上記保湿剤を含有する化粧料を提供するものである。
【0009】
【発明の実施の形態】
本発明の保湿剤は、アロエに乳酸菌を作用させて得られる発酵生成物を有効成分とするものである。
【0010】
本発明の保湿剤の有効成分である発酵生成物の調製に当たり、その原料となるアロエは、アフリカ原産のユリ科植物の総称であり、キダチアロエやアロエベラ等、300種以上の品種を有する。このアロエはムチンやアロエマンナン等の多糖類を多く含むほか、アロインやアロエニン、アロエチン、アロチミン、アロエウルシン等の成分を含有することが知られている。本発明で使用するアロエは、アロエの仲間であれば特に限定するものではないが、アロエ(Aloe)属の植物が好ましく、特に入手の容易性や、コストの点等から、キダチアロエ(Aloe arborescens Miller)又はアロエベラ(Aloe barbadensis Miller)を使用することが好ましい。上記アロエの使用部位としては特に限定されないが、葉、葉肉、芽、根の他に、繊維成分がないため後の製造工程が簡便になる前記部位の汁液、ドリップ液等も用いることができる。また、アロエの発酵に用いられる乳酸菌は上記アロエ中の繊維成分やタンパク成分等を資化することができないので、常法に従い、醗酵処理前にセルラーゼ処理、プロテアーゼ処理等の分解処理等を行うことが好ましい。セルラーゼ処理を行うことにより、資化性が向上して発酵が進行し、発酵生成物中に資化できなかったセルロース等が残存せず、後の製造工程が簡便となる。また、プロテアーゼ処理を行うことにより、発酵生成物にタンパク成分等が残留しないため濁りを生じず、発酵後に清澄化工程を行う必要がなくなる。更に、アミラーゼ処理を併用することで、より乳酸菌の資化性が向上する。酵素分解処理には、セルラーゼ、ペクチナーゼ等の繊維質分解酵素(セルラーゼ類)や、酸性プロテアーゼ、中性プロテアーゼ、アルカリ性プロテアーゼ、パパイン、フィシン、プロメライン等のプロティナーゼ、ペプチダーゼ、マンナナーゼ等のタンパク分解酵素等(プロテアーゼ類)、α-アミラーゼ、グルコアミラーゼ等のデンプン分解酵素(アミラーゼ類)から1種または2種以上を適宜選択して使用すればよい。
【0011】
一方、本発明の保湿剤の有効成分である発酵生成物の調製に用いられる乳酸菌としては、アロエを発酵できるものであれば特に限定されず、種々の乳酸菌を使用することができる。具体的には、例えば、ラクトバチルス・カゼイ(Lactobacillus casei)、ラクトバチルス・クルバタス(Lactobacillus curvatus)、ラクトバチルス・プランタラム(Lactobacillus plantarum)、ラクトバチルス・アミロボラス(Lactobacillus amylovorus)、ラクトバチルス・ブレビス(Lactobacillus brevis)、ラクトバチルス・ブフネリ(Lactobacillus buchneri)、ラクトバチルス・ファーメンタム(Lactobacillus fermentum)、ラクトバチルス・マリ(Lactobacillus mali)、ラクトバチルス・パラブフネリ(Lactobacillus parabuchneri)、ラクトバチルス・パラカゼイ(Lactobacillus paracasei)、ラクトバチルス・ペントサス(Lactobacillus pentosus)、ラクトバチルス・ラムノサス(Lactobacillus rhamnosus)、ラクトバチルス・ビチュリヌス(Lactobacillus vitulinus)、ラクトバチルス・ゼアエ(Lactobacillus zeae)等のラクトバチルス属、ラクトコッカス・ラクティス(Lactococcus lactis)等のラクトコッカス属、ロイコノストック・メセンテロイデス(Leuconostoc mesenteroides)、ロイコノストック・カルノサム(Leuconostoc carnosum)、ロイコノストック・シトレウム(Leuconostoc citreum)、ロイコノストック・ゲリダム(Leuconostoc gelidum)、ロイコノストック・ラクティス(Leuconostoc lactis)等のロイコノストック属、ペディオコッカス・ペントサセウス(Pediococcus pentosaceus)等のペディオコッカス属、エンテロコッカス・フェカリス(Enterococcus faecalis)、エンテロコッカス・フェシウム(Enterococcus faecium)等のエンテロコッカス属、及びワイセラ・コンフューサ(Weissella confusa)、ワイセラ・パラメセンテロイデス(Weissella paramesenteroides)、ワイセラ・ビリデスセンス(Weissella viridescens)等のワイセラ属等に属する乳酸菌の一種又は二種以上から選択し、使用すればよい。
【0012】
本発明で用いられる上記乳酸菌の起源は特に限定されず、動物、植物、或いは魚介類由来乳酸菌等、いずれの乳酸菌でも好適に使用できるが、発酵の安定性の点から植物由来乳酸菌が特に好ましい。
【0013】
また、発酵生成物の保湿効果の点から、FERM BP−1366やATCC 27216等のラクトバチルス・カゼイ 、JCM 1096T等のラクトバチルス・カルバタス、JCM 1588TやNRIC 0397等のラクトバチルス・ペントサス、ATCC 14917TやATCC 8014等のラクトバチルス・プランタラム、DSM 20178等のラクトバチルス・ゼアエ、ATCC 19256T等のロイコノストック・ラクティスから選ばれる乳酸菌の一種又は二種以上を選択することが好ましい。
【0014】
なお、本発明で用いた乳酸菌のうち、FERM BP−1366は昭和62年5月18日付けで独立行政法人産業技術総合研究所 特許生物寄託センター(郵便番号305−8566 日本国茨城県つくば市東1丁目1番地1中央第6)に寄託済のラクトバチルス・カゼイ(Lactobacillus casei) YIT9029株である。
なお、表1および表2に示す菌株名の語尾に"T"を付した菌株は基準株(typestrain)であり、その他の株も含めてATCC(American Type Culture Collection)等から入手することができる。
【0015】
上記した乳酸菌を用いるアロエの発酵は、一般的な乳酸菌を用いた植物の発酵方法により行うことができ、特に制約されないが、例えば、前培養した乳酸菌の菌液をアロエの抽出物等に接種した後、その微生物に適した温度、時間等の条件を適宜決定して発酵を行えばよい。なお、この培養の際には発酵生成物の嗜好性を損なわないためおよびアロエを十分に資化させるために糖類を添加しないことが好ましい。
【0016】
具体的に上記したアロエの発酵は、Brixを0.5〜4.0に調製したアロエの抽出物に乳酸菌を接種して、pHを中性〜酸性、30〜40℃の培養温度で6〜96時間程度行えばよい。
【0017】
斯くして得られる発酵生成物は優れた保湿作用を有し、このままでも保湿剤として使用可能であるが、本発明の効果を妨げない範囲で、遠心処理やろ過処理等の精製処理を行なって保湿剤としてもよく、また、低級及び多価アルコール等の有機溶媒で発酵生成物を抽出した後保湿剤としてもよい。
【0018】
上記のようにして得られた保湿剤は、化粧料をはじめとする種々の組成物に配合することができる。化粧料に配合する場合には、化粧料の全量に対して発酵生成物として0.01%〜100%(W/V)、好ましくは0.1%〜90%、より好ましくは1〜30%となる量の保湿剤を添加すればよい。また、この化粧料には本発明の効果を妨げない範囲で通常化粧料に配合される成分、例えば、水、アルコール類、油成分、界面活性剤、防腐剤、香料、色素等を配合することができる。また、上記化粧料に脱脂乳又は豆乳にビフィズス菌を接種して得られた培養液、ヒアルロン酸、グリセリン等の保湿成分を配合することによってよりいっそう保湿効果が期待される。具体的に、ヒアルロン酸を配合する場合には、ヒアルロン酸ナトリウムの使用が好ましい。さらに、発酵生成物を両親媒性物質のラメラ構造体に内包して用いてもよい。
【0019】
【実施例】
次に実施例を挙げて本発明を詳細に説明するが、本発明はこれらに何ら限定されるものではない。
【0020】
製 造 例 1
乳酸菌の前培養:
アロエの発酵に用いる乳酸菌の前培養を行った。乳酸菌の培養の培地には121℃で15 分間蒸気滅菌したMRS培地(Difco社製)又はGYP液体培地(小崎 道雄 監修、「乳酸菌実験マニュアル」、30、朝倉書店、1992)の4mlを用いた。この培地に表1及び表2の各乳酸菌を接種した後、30℃又は37℃にて1日間静置培養を行ない、前培養液を得た。
【0021】
【表1】
【0022】
【表2】
ATCC : American Type Culture Collection
DSM : Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH
FERM : 独立行政法人産業技術総合研究所 特許生物寄託センター(National Institute of Biosciences and Human-Technology, Agencyof Industrial Science and Technology, Ministry of InternationalTrade and Industry)
IAM : 東京大学分子細胞生物学研究所(IAM Culture collection, Institute of Molecular and Cellular Biosciences, University of Tokyo)
JCM : 理化学研究所 微生物系統保存施設(Japan Collection of Microorganisms)
NIRD : National Institute for Research in Dairying, UK.
NRIC : 東京農業大学 菌株保存室(NODAI Research Institute Culture Collection)
NCDO : National Collections of industrial, Food and Marine Bacteria, NCIMB Ltd., UK.
菌株名T : 基準株(Type strain)を表す
【0023】
製 造 例 2:
アロエベラ発酵生成物の製造(1):
アロエベラ(Aloe barbadensis Miller)の凍結葉を解凍後破砕し、2倍量の水及びクエン酸0.05%を加え、40℃にてセルラーゼ処理(セルラーゼ“オノズカ”3S;ヤクルト薬品工業社製)を3時間行った。その後、一旦90℃まで加熱した後、室温まで冷却してろ過し、Brix3.5になるまで減圧濃縮を行ってアロエベラ抽出液を得た。得られたアロエベラ抽出液(pH3.7)を121℃で15分間蒸気滅菌した。これに、表3に記載した乳酸菌の前培養菌液を1%接種した後、30℃で96時間静置培養し、遠心上清を採取してアロエ発酵生成物を得た。
【0024】
製 造 例 3
アロエベラ発酵生成物の製造(2):
アロエベラ(Aloe barbadensis Miller)の凍結葉を解凍する際に得られるドリップ液にクエン酸0.05%を加え、40℃にてペクチン分解(スクラーゼS;三共株式会社製)、デンプン分解(コクラーゼ;三共株式会社製)及びパパイン(パパインソルブル;ヤクルト薬品工業社製)処理を3時間行った。その後、一旦90℃まで加熱した後、室温まで冷却してろ過し、Brix3.5になるまで減圧濃縮した。更に凍結融解後、析出したシュウ酸カルシウムをろ過にて除去してアロエベラ抽出液を得た。得られたアロエベラ抽出液(pH3.7)を 121℃で15分間蒸気滅菌し、表3に記載した乳酸菌の前培養菌液をこれに1%接種した後、30℃で96時間静置培養し、遠心上清を採取してアロエ発酵生成物を得た。なお、乳酸菌を接種しないアロエべラ抽出液を未発酵物として同様に静置培養し、比較品1とした。
【0025】
製 造 例 4
キダチアロエ発酵生成物の製造:
キダチアロエ(Aloe arborescens Miller)の乾燥葉を水洗し、5倍量の水を加えミキサーでペースト状に粉砕して48時間放置後、ろ液を採取してキダチアロエ抽出液(pH5.3)とした。得られたキダチアロエ抽出液を 121℃で15 分間蒸気滅菌し、これに表4に記載した乳酸菌の菌液を1%接種した後、30℃で96 時間静置培養し、遠心上清を採取してアロエ発酵生成物を得た。なお、乳酸菌を接種しないキダチアロエ抽出液を未発酵物として同様に静置培養し、比較品2とした。
【0026】
製 造 例 5
pH調製アロエベラ発酵生成物の製造:
製造例3と同様にして得られたアロエベラ抽出液に8N水酸化ナトリウム(和光純薬)を加えpH7.0に調製した後、121℃で15分間蒸気滅菌し、これに表5に記載した乳酸菌の菌液を1%接種した後、30℃で96時間静置培養し、遠心上清を採取してアロエ発酵生成物を得た。なお、乳酸菌を接種しないpH調製済みアロエべラ抽出液を未発酵物として同様に静置培養し、比較品3とした。
【0027】
試 験 例 1
アロエベラ発酵生成物の保湿効果(1):
温度24℃、湿度45% の環境を維持した測定室において、女性パネラー10名の前腕内側皮膚に上記製造例3で得られた各種アロエ発酵生成物を10μl/cm2塗布し、皮膚角質層の水分含有量の経時的変化をコンダクタンスメータ(IBS社製SKICON−200)にて測定した。コンダクタンスは塗布前と塗布10分後に各々5回測定した平均値を求め、さらに10名の平均値で表し、以下の式1により算出されるコンダクタンス上昇率で表した。得られた結果を表3に示す。
【0028】
【式1】
【0029】
【表3】
【0030】
表3に示したとおり、アロエベラ発酵生成物は未発酵のアロエ抽出物に比較して優れた皮膚角質層の水分保持機能を有しており、保湿剤として有用であることがわかった。また、乳酸菌として、JCM 1558およびATCC 14917を用いたときに得られる発酵生成物の保湿効果は特に優れたものであった。なお、製造例2で得られたアロエ発酵生成物について同様の試験を実施した結果、特にJCM 1558およびATCC 14917を用いるときに得られる発酵生成物が優れた保湿性を示した。更に、この発酵生成物の「べたつき」、「皮膚刺激性」はまったく感じられず、また、いずれの乳酸菌を用いて発酵した生成物にも発酵臭はほとんど無く、アロエ特有の青臭さも消失していた。
【0031】
試 験 例 2
キダチアロエ発酵生成物の保湿効果:
温度24℃、湿度45% の環境を維持した測定室において、女性パネラー10名の前腕内側皮膚に上記製造例4で得られた各種アロエ発酵生成物を10μl/cm2塗布し、皮膚角質層の水分含有量の経時的変化をコンダクタンスメータ(IBS社製SKICON−200)にて測定した。得られた結果は試験例1と同様に算出されたコンダクタンス上昇率で表した。得られた結果を表4に示す。
【0032】
【表4】
【0033】
表4に示したとおり、キダチアロエ発酵生成物は未発酵のアロエ抽出物に比較して優れた皮膚角質層の水分保持機能を有しており、保湿剤として有用であることがわかった。また、乳酸菌として、JCM 11096を用いたときに得られる発酵生成物の保湿効果は特に優れたものであった。更に、この発酵生成物の「べたつき」、「皮膚刺激性」はまったく感じられず、また、いずれの乳酸菌を用いて発酵した生成物にも発酵臭はほとんど無く、アロエ特有の青臭さも消失していた。
【0034】
試 験 例 3
アロエベラ発酵生成物の保湿効果(2):
温度24℃、湿度45% の環境を維持した測定室において、女性パネラー10名の前腕内側皮膚に上記製造例5で得られた各種アロエ発酵生成物を10μl/cm2塗布し、皮膚角質層の水分含有量の経時的変化をコンダクタンスメータ(IBS社製SKICON−200)にて測定した。得られた結果は試験例1と同様に算出されたコンダクタンス上昇率で表した。得られた結果を表5に示す。
【0035】
【表5】
【0036】
表5に示したとおり、pH調製をしたアロエベラ発酵生成物は未調整のアロエベラ発酵生成物と同等かそれ以上の保湿効果を有していた。また、pH調製したアロエベラ抽出液も未発酵のアロエ抽出物に比較して優れた皮膚角質層の水分保持機能を有しており、保湿剤として有用であることがわかった。また、乳酸菌として、ATCC 14917を用いたときに得られる発酵生成物の保湿効果は特に優れたものであった。更に、この発酵生成物の「べたつき」、「皮膚刺激性」はまったく感じられず、また、いずれの乳酸菌を用いて発酵した生成物にも発酵臭はほとんど無く、アロエ特有の青臭さも消失していた。
【0037】
試 験 例 4
アロエベラ発酵生成物を含有する化粧料の保湿効果:
アロエベラにラクトバチルス・プランタラム(Lactobacillus plantarum)ATCC 14917株を製造例3と同様の方法で作用させて得られた発酵生成物(実施品89)と、これにヒアルロン酸(HA)を0.06% 配合した化粧料を調製した(実施品90)。次いで、これらを10μl/cm2で皮膚に塗布し、そのときのコンダクタンス上昇率の経時的変化を調べた。なお、実施品90と同量になるよう調製したHAを比較例4とした。得られた結果を表6に示す。
【0038】
【表6】
【0039】
表6よりアロエに乳酸菌を作用させて得られた発酵生成物にヒアルロン酸を配合した化粧料は、発酵生成物単独のものよりも優れた保湿効果が得られることがわかった。
【0040】
実 施 例 1
化粧水:
下記組成の化粧水を製造した。
< 組 成 > ( 質 量 % )
(1)エタノール 4.5
(2)1−3ブチレングリコール 2.0
(3)ヒアルロン酸 0.2
(4)ポリオキシエチレン硬化ヒマシ油 0.05
(5)パラオキシ安息香酸メチル 0.1
(6)香料 0.1
(7)アロエ発酵生成物 全体で100なる量
【0041】
< 製 法 >
(7)に(3)を分散し、これに(1)、(2)、(4)、(5)及び(6)を加えて十分撹拌することにより化粧水を得た。なお、アロエ発酵生成物としては、製造例2〜4で得られた実施品2、実施品18、実施品20、実施品35、実施品66、実施品67、実施品76、実施品77、実施品80を使用した。
【0042】
実 施 例 2
乳液:
下記組成の乳液を製造した。
< 組 成 > ( 質 量 % )
(1)ステアリン酸 2.0
(2)流動パラフィン 5.0
(3)スクワラン 2.0
(4)ソルビタンモノステアレート 1.5
(5)ポリオシキエチレン(20)
ソルビタンモノステアレート 2.0
(6)パラオキシ安息香酸ブチル 0.05
(7)グリセリン 2.0
(8)パラオキシ安息香酸メチル 0.1
(9)香料 0.15
(10)アロエ発酵生成物 全体で100となる量
【0043】
< 製 法 >
(10)に(7)及び(8)を加え、これに80℃で(1)〜(6)を加えて乳化し、その(9)を加えて室温まで冷却して乳液を得た。なお、アロエ発酵生成物としては、製造例2〜4で得られた実施品3、実施品5、実施品33、実施品34、実施品60、実施品61、実施品86、実施品87、実施品88を使用した。
【0044】
実 施 例 3
クリーム:
下記組成のクリームを製造した。
< 組 成 > ( 質 量 % )
(1)流動パラフィン 22.0
(2)ワセリン 7.0
(3)セタノール 1.0
(4)ステアリン酸 2.0
(5)ミツロウ 2.0
(6)ソルビタンモノステアレート 3.5
(7)ポリオシキエチレン(20)ソルビタンモノステアレート 2.5
(8)パラオキシ安息香酸ブチル 0.05
(9)ヒアルロン酸 0.1
(10)1−3ブチレングリコール 1.0
(11)パラオキシ安息香酸メチル 0.1
(12)香料 0.15
(13)アロエ発酵生成物 全体で100となる量
【0045】
< 製 法 >
(13)に(10)及び(11)を加え、これに(9)を分散せしめて分散液を得る。次いでこれを80℃で(1)〜(8)を加えて乳化し、その後(12)を加えて室温まで冷却してクリームを得た。なお、アロエ発酵生成物としては、製造例2〜4で得られた実施品4、実施品20、実施品36、実施品43、実施品44、実施品60、実施品73、実施品78、実施品85を使用した。
【0046】
【発明の効果】
本発明のアロエを乳酸菌に作用させて得られる発酵生成物はヒト皮膚角質層の水分保持能に優れ、保湿剤として有用である。また、このものはアロエの青臭さがほとんど消失しており、発酵臭も少ない。さらに、アロエの発酵の際に実質的に糖類を添加していないので、保湿剤によく見られるべたつき感もまったくなく、これを配合すれば優れた保湿作用と良好な使用感を有する化粧料が得られる。
以 上[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a humectant having excellent skin moisture retention ability and a cosmetic composition containing the humectant, which has excellent feeling in use.
[0002]
[Prior art]
Conventionally, aloe has been used for the purpose of hair growth, ultraviolet protection, anti-inflammatory, anti-tyrosinase, moisturizing, hair protection, thickening, etc., and many cosmetics containing this have been reported (for example, Non-Patent Documents) 1). Many of the additional components obtained from this aloe have anthraquinones, mainly aloin, as active ingredients, and therefore have skin irritation (see, for example, Non-Patent Document 2). In some cases, polysaccharides are extracted from aloe and used, but their moisturizing action is weak and not sufficient (for example, see Patent Document 1).
[0003]
On the other hand, skin external preparations obtained by adding yeast to aloe and fermenting for the purpose of speeding up the extraction step and reducing the specific odor have been reported (for example, see Patent Documents 2 and 3). However, if sugars are not added, fermentation does not proceed sufficiently, and the resulting fermented product has a problem that it is easily spoiled or has a sticky feeling due to the influence of residual sugar. Further, when yeast is used for the fermentation of aloe, a peculiar fermentation smell is generated, and there is a problem that the taste of the product is reduced.
[0004]
[Patent Document 1] Japanese Patent Application No. 58-197175 [Patent Document 2] Japanese Patent Application No. 58-197175 [Patent Document 3] Japanese Patent Application Laid-Open No. 60-087207 [Non-Patent Document 1] Norihisa Maeda et al. Fragrance Journal Extra Edition ”, No. 16, p83-84, 1999
[Non-Patent Document 2] Supervised by Masato Suzuki, "Effects, effects and effects of new cosmetic materials (2)", CMC, p395-397, 1998
[0005]
[Problems to be solved by the invention]
Accordingly, an object of the present invention is to provide a moisturizer having a high usability and a cosmetic containing the moisturizer, which further enhances the moisturizing action of aloe and eliminates skin irritation.
[0006]
[Means for Solving the Problems]
Under these circumstances, the present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, a fermentation product obtained by allowing lactic acid bacteria to act on aloe increases the water content of the stratum corneum of the skin. Have found that they have excellent usability and have completed the present invention.
[0007]
That is, the present invention provides a humectant containing, as an active ingredient, a fermentation product obtained by allowing one or more lactic acid bacteria to act on aloe.
[0008]
The present invention also provides a cosmetic containing the above humectant.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
The humectant of the present invention contains, as an active ingredient, a fermentation product obtained by allowing lactic acid bacteria to act on aloe.
[0010]
In preparing a fermentation product, which is an active ingredient of the humectant of the present invention, aloe as a raw material is a general term for lily plants native to Africa, and has more than 300 varieties, such as aloe vera and aloe vera. It is known that this aloe contains a lot of polysaccharides such as mucin and aloe mannan and also contains components such as aloin, aloenin, aloetin, alothymine, and aloeurcin. The aloe used in the present invention is not particularly limited as long as it is a family of aloe, but a plant belonging to the genus Aloe is preferred, and particularly from the viewpoint of easy availability and cost, Aloe arborescens Miller ) Or Aloe barbadensis Miller. There are no particular restrictions on the site where the aloe is used, but in addition to leaves, mesophylls, buds, and roots, juices, drip liquors, and the like at the site where the subsequent production process is simplified because there is no fiber component can also be used. In addition, since lactic acid bacteria used for the fermentation of aloe cannot utilize the fiber components and protein components in the aloe, it is necessary to perform a decomposition treatment such as a cellulase treatment or a protease treatment according to a conventional method before the fermentation treatment. Is preferred. By performing the cellulase treatment, assimilation is improved, fermentation proceeds, and unutilized cellulose or the like does not remain in the fermentation product, and the subsequent production process is simplified. In addition, by performing the protease treatment, protein components and the like do not remain in the fermentation product, so that turbidity does not occur, and it is not necessary to perform a clarification step after fermentation. Furthermore, the combined use of amylase treatment further improves the assimilation of lactic acid bacteria. For the enzymatic degradation treatment, fibrinolytic enzymes (cellulases) such as cellulase and pectinase, proteinases such as acidic protease, neutral protease, alkaline protease, papain, ficin, and promelain, and proteolytic enzymes such as peptidase and mannanase, etc. (Protease), one or more of amylolytic enzymes (amylases) such as α-amylase and glucoamylase may be appropriately selected and used.
[0011]
On the other hand, the lactic acid bacteria used for preparing the fermentation product as the active ingredient of the humectant of the present invention are not particularly limited as long as they can ferment aloe, and various lactic acid bacteria can be used. Specifically, for example, Lactobacillus casei, Lactobacillus curvatus, Lactobacillus plantarum, Lactobacillus amylovorus, Lactobacillus lucis (Lactobacillus blevis) brevis), Lactobacillus buchneri, Lactobacillus fermentum, Lactobacillus mali, Lactobacillus parabuchneri, Lactobacillus paracillus paracasei Bacillus pentosus (Lactobacillus pentosus), Lactobacillus rhamnosus (Lactobacillus rhamnosus), Lactobacillus biturinusu (Lactobacillus vitulinus), Lactobacillus zeae (Lactobacillus zeae), etc. Lactococcus genus such as Lactobacillus, Lactococcus lactis, etc., Leuconostoc mesenteroides, Leuconostoc carnosum, Leuconostoc citreum, Leucono Leuconostoc genus, such as Stock Geridum (Leuconostoc gelidum) and Leuconostoc lactis, and Pediococcus genus, such as Pediococcus pentosaceus, Enterococcus faecalis, Enterococcus faecalis. Enterococcus faecium and other Enterococcus species, and Weissella confusa, Weissella paramesenteroides, Weissella viridides sense (Weisse) Lactic acid bacterium belonging to the genus Weissera, such as lla viridescens, may be selected and used.
[0012]
The origin of the lactic acid bacterium used in the present invention is not particularly limited, and any lactic acid bacterium such as an animal, plant, or seafood-derived lactic acid bacterium can be suitably used, but a plant-derived lactic acid bacterium is particularly preferred from the viewpoint of fermentation stability.
[0013]
From the viewpoint of the moisturizing effect of the fermentation product, Lactobacillus casei such as FERM BP-1366 and ATCC 27216, Lactobacillus carbatus such as JCM 1096T, Lactobacillus pentosus such as JCM 1588T and NRIC 0397, and ATCC 14917T. It is preferable to select one or more lactic acid bacteria selected from Lactobacillus plantarum such as ATCC 8014, Lactobacillus zeae such as DSM 20178, and Leuconostoc lactis such as ATCC 19256T.
[0014]
Among the lactic acid bacteria used in the present invention, FERM BP-1366 was established on May 18, 1987 at the National Institute of Advanced Industrial Science and Technology, Patent Organism Depositary (Postal code 305-8566, Higashi 1 Tsukuba, Ibaraki, Japan) Lactobacillus casei YIT9029 strain deposited at No. 1, No. 1, Central No. 6).
The strains with " T " at the end of the strain names shown in Tables 1 and 2 are reference strains (typestrain), and can be obtained from ATCC (American Type Culture Collection) and the like, including other strains. .
[0015]
The above-mentioned fermentation of aloe using lactic acid bacteria can be performed by a fermentation method of a plant using a general lactic acid bacterium, and is not particularly limited. Thereafter, fermentation may be performed by appropriately determining conditions such as temperature and time suitable for the microorganism. In addition, in this culture, it is preferable not to add a saccharide in order not to impair the palatability of the fermentation product and to sufficiently utilize aloe.
[0016]
Specifically, in the aloe fermentation described above, lactic acid bacteria are inoculated into an aloe extract prepared with a Brix of 0.5 to 4.0, and the pH is adjusted to a neutral to acidic pH of 30 to 40 ° C at a culture temperature of 6 to 40 ° C. It may be performed for about 96 hours.
[0017]
The fermentation product thus obtained has an excellent moisturizing action and can be used as a humectant as it is, but it is subjected to purification treatment such as centrifugation treatment or filtration treatment as long as the effect of the present invention is not impaired. It may be used as a humectant, or may be used as a humectant after extracting a fermentation product with an organic solvent such as a lower or polyhydric alcohol.
[0018]
The humectant obtained as described above can be blended with various compositions including cosmetics. When blended in a cosmetic, the fermentation product is 0.01% to 100% (W / V), preferably 0.1% to 90%, more preferably 1 to 30% based on the total amount of the cosmetic. What is necessary is just to add the humectant of the quantity used. In addition, components that are usually blended with the cosmetics within a range that does not impair the effects of the present invention, such as water, alcohols, oil components, surfactants, preservatives, fragrances, and pigments, may be incorporated into the cosmetics. Can be. Further, by adding a moisturizing component such as hyaluronic acid or glycerin to the above-mentioned cosmetics, a culture solution obtained by inoculating skim milk or soymilk with bifidobacteria, and a moisturizing effect can be expected. Specifically, when hyaluronic acid is blended, it is preferable to use sodium hyaluronate. Further, the fermentation product may be used by being included in a lamellar structure of an amphipathic substance.
[0019]
【Example】
Next, the present invention will be described in detail with reference to examples, but the present invention is not limited thereto.
[0020]
Manufacturing example 1
Preculture of lactic acid bacteria:
Preculture of lactic acid bacteria used for aloe fermentation was performed. As a culture medium for lactic acid bacteria, 4 ml of MRS medium (manufactured by Difco) or GYP liquid medium (supervised by Michio Ozaki, “Lactic Acid Bacteria Experiment Manual”, 30, Asakura Shoten, 1992) steam-sterilized at 121 ° C. for 15 minutes was used. After inoculating each lactic acid bacterium shown in Tables 1 and 2 into this medium, static cultivation was carried out at 30 ° C. or 37 ° C. for 1 day to obtain a pre-culture solution.
[0021]
[Table 1]
[0022]
[Table 2]
ATCC: American Type Culture Collection
DSM: Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH
FERM: National Institute of Biosciences and Human-Technology, Agency of Industrial Science and Technology, Ministry of International Trade and Industry
IAM: IAM Culture collection, Institute of Molecular and Cellular Biosciences, University of Tokyo
JCM: RIKEN Microbial Strain Preservation Facility (Japan Collection of Microorganisms)
NIRD: National Institute for Research in Dairying, UK.
NRIC: Tokyo University of Agriculture Strain Storage Room (NODAI Research Institute Culture Collection)
NCDO: National Collections of industrial, Food and Marine Bacteria, NCIMB Ltd., UK.
Strain name T : Represents a reference strain (Type strain)
Manufacturing example 2:
Production of Aloe Vera Fermentation Product (1):
Frozen leaves of Aloe vera (Aloe barbadensis Miller) are thawed after thawing, doubled with water and 0.05% citric acid, and treated with cellulase at 40 ° C. (cellulase “Onozuka” 3S; manufactured by Yakult Yakuhin Kogyo). Performed for 3 hours. Thereafter, the mixture was once heated to 90 ° C., cooled to room temperature, filtered, and concentrated under reduced pressure until Brix 3.5 to obtain an aloe vera extract. The obtained aloe vera extract (pH 3.7) was steam-sterilized at 121 ° C. for 15 minutes. After inoculating 1% of the precultured bacterial solution of the lactic acid bacteria described in Table 3, the culture was allowed to stand still at 30 ° C. for 96 hours, and the centrifuged supernatant was collected to obtain an aloe fermentation product.
[0024]
Manufacturing example 3
Production of Aloe Vera Fermentation Product (2):
Addition of 0.05% citric acid to the drip obtained when thawing the frozen leaves of Aloe vera (Aloe barbadensis Miller), decomposition of pectin (Sucrase S; manufactured by Sankyo Co., Ltd.), and decomposition of starch (Coclase; Sankyo) at 40 ° C. Co., Ltd.) and Papain (Papain Solble; manufactured by Yakult Yakuhin Kogyo Co., Ltd.) for 3 hours. Thereafter, the mixture was once heated to 90 ° C., cooled to room temperature, filtered, and concentrated under reduced pressure until it became Brix 3.5. After further freeze-thawing, the precipitated calcium oxalate was removed by filtration to obtain an Aloe vera extract. The obtained aloe vera extract (pH 3.7) was steam-sterilized at 121 ° C. for 15 minutes, inoculated with 1% of a precultured bacterial solution of lactic acid bacteria described in Table 3, and then incubated at 30 ° C. for 96 hours. The centrifuged supernatant was collected to obtain an aloe fermentation product. In addition, the aloe vera extract without inoculating lactic acid bacteria was similarly statically cultured as an unfermented product to obtain Comparative Product 1.
[0025]
Manufacturing example 4
Production of fermentation product of Kidachi aloe:
The dried leaf of Aloe arborescens Miller was washed with water, 5 times the amount of water was added, and the mixture was pulverized into a paste with a mixer and allowed to stand for 48 hours. The filtrate was collected to obtain a Kidachi aloe extract (pH 5.3). The obtained Kidachi aloe extract was steam-sterilized at 121 ° C. for 15 minutes, and 1% of the lactic acid bacteria described in Table 4 was inoculated into the extract, followed by stationary culture at 30 ° C. for 96 hours, and the centrifuged supernatant was collected. To obtain an aloe fermentation product. It should be noted that a Kidachi aloe extract not inoculated with a lactic acid bacterium was similarly statically cultured as an unfermented product to obtain Comparative Product 2.
[0026]
Manufacturing example 5
Production of pH adjusted aloe vera fermentation product:
8N sodium hydroxide (Wako Pure Chemical Industries, Ltd.) was added to the aloe vera extract obtained in the same manner as in Production Example 3 to adjust the pH to 7.0, followed by steam sterilization at 121 ° C. for 15 minutes. After inoculating 1% of the bacterial solution, the culture was allowed to stand still at 30 ° C. for 96 hours, and the centrifuged supernatant was collected to obtain an aloe fermentation product. In addition, the Aloe vera extract, which had not been inoculated with lactic acid bacteria and had been adjusted to pH, was similarly statically cultured as an unfermented product, and was used as Comparative Product 3.
[0027]
Test example 1
Moisturizing effect of aloe vera fermentation product (1):
In a measurement room maintained at an environment of a temperature of 24 ° C. and a humidity of 45%, 10 μl / cm 2 of the various aloe fermentation products obtained in Production Example 3 were applied to the inner skin of the forearm of 10 female panelists, and The change over time in the water content was measured with a conductance meter (SKICON-200 manufactured by IBS). The conductance was determined by measuring the average value of the conductance measured 5 times before and 10 minutes after the application, and expressed by the average value of 10 persons, and expressed by the conductance increase rate calculated by the following formula 1. Table 3 shows the obtained results.
[0028]
(Equation 1)
[0029]
[Table 3]
[0030]
As shown in Table 3, the fermented aloe vera product had an excellent moisture retention function of the stratum corneum of the skin as compared with the unfermented aloe extract, and was found to be useful as a moisturizer. In addition, the fermentation products obtained when JCM 1558 and ATCC 14917 were used as lactic acid bacteria had particularly excellent moisturizing effects. A similar test was performed on the aloe fermentation product obtained in Production Example 2, and as a result, the fermentation product obtained when JCM 1558 and ATCC 14917 were used showed excellent moisture retention. Furthermore, no "stickiness" or "skin irritation" of this fermented product was felt at all, and the product fermented using any of the lactic acid bacteria had almost no fermentation smell, and the blue smell peculiar to aloe disappeared. Was.
[0031]
Test example 2
Moisturizing effect of fermented almond products:
In a measurement room maintained at an environment of a temperature of 24 ° C. and a humidity of 45%, 10 μl / cm 2 of the various aloe fermentation products obtained in Production Example 4 above were applied to the inner skin of the forearm of 10 female panelists, and The change over time in the water content was measured with a conductance meter (SKICON-200 manufactured by IBS). The obtained result was represented by a conductance increase rate calculated in the same manner as in Test Example 1. Table 4 shows the obtained results.
[0032]
[Table 4]
[0033]
As shown in Table 4, the fermentation product of Kidachi aloe had an excellent moisture retention function of the stratum corneum of the skin as compared with the unfermented aloe extract, and was found to be useful as a humectant. In addition, the fermentation product obtained when JCM 11096 was used as a lactic acid bacterium had a particularly excellent moisturizing effect. Furthermore, no "stickiness" or "skin irritation" of this fermented product was felt at all, and the product fermented using any of the lactic acid bacteria had almost no fermentation smell, and the blue smell peculiar to aloe disappeared. Was.
[0034]
Test example 3
Moisturizing effect of aloe vera fermentation product (2):
In a measurement room maintained at an environment of a temperature of 24 ° C. and a humidity of 45%, 10 μl / cm 2 of the various aloe fermentation products obtained in Production Example 5 were applied to the inner skin of the forearm of 10 female panelists, and The change over time in the water content was measured with a conductance meter (SKICON-200 manufactured by IBS). The obtained result was represented by a conductance increase rate calculated in the same manner as in Test Example 1. Table 5 shows the obtained results.
[0035]
[Table 5]
[0036]
As shown in Table 5, the pH adjusted aloe vera fermentation product had a moisturizing effect equal to or higher than the unadjusted aloe vera fermentation product. In addition, the aloe vera extract having the adjusted pH had an excellent moisture retention function of the stratum corneum of the skin as compared with the unfermented aloe extract, and was found to be useful as a moisturizer. Further, the fermentation product obtained when ATCC 14917 was used as a lactic acid bacterium had a particularly excellent moisturizing effect. Furthermore, no "stickiness" or "skin irritation" of this fermented product was felt at all, and the product fermented using any of the lactic acid bacteria had almost no fermentation smell, and the blue smell peculiar to aloe disappeared. Was.
[0037]
Test example 4
Moisturizing effect of cosmetics containing fermented aloe vera product:
A fermentation product (Example 89) obtained by allowing Lactobacillus plantarum ATCC 14917 to act on Aloe vera in the same manner as in Production Example 3 and 0.06 of hyaluronic acid (HA) was added thereto. % Cosmetics were prepared (Example 90). Next, these were applied to the skin at 10 μl / cm 2 , and the time-dependent changes in the conductance increase rate at that time were examined. Note that HA prepared so as to have the same amount as that of the product 90 was used as Comparative Example 4. Table 6 shows the obtained results.
[0038]
[Table 6]
[0039]
From Table 6, it was found that the cosmetic in which hyaluronic acid was added to the fermentation product obtained by allowing lactic acid bacteria to act on aloe had a better moisturizing effect than the fermentation product alone.
[0040]
Example 1
Lotion:
A lotion having the following composition was produced.
<Composition> (mass%)
(1) Ethanol 4.5
(2) 1-3 butylene glycol 2.0
(3) Hyaluronic acid 0.2
(4) Polyoxyethylene hydrogenated castor oil 0.05
(5) Methyl paraoxybenzoate 0.1
(6) Fragrance 0.1
(7) Aloe fermentation product Total amount of 100
<Production method>
(3) was dispersed in (7), and (1), (2), (4), (5) and (6) were added thereto and sufficiently stirred to obtain a lotion. In addition, as the aloe fermentation product, the product 2, the product 18, the product 20, the product 35, the product 66, the product 67, the product 76, the product 77 obtained in Production Examples 2 to 4, Example product 80 was used.
[0042]
Example 2
Latex:
An emulsion having the following composition was produced.
<Composition> (mass%)
(1) Stearic acid 2.0
(2) Liquid paraffin 5.0
(3) Squalane 2.0
(4) Sorbitan monostearate 1.5
(5) Polyoxyethylene (20)
Sorbitan monostearate 2.0
(6) Butyl paraoxybenzoate 0.05
(7) Glycerin 2.0
(8) Methyl paraoxybenzoate 0.1
(9) Fragrance 0.15
(10) Aloe fermentation product Total amount of 100
<Production method>
(7) and (8) were added to (10), (1) to (6) were added at 80 ° C. to emulsify, and (9) was added thereto, followed by cooling to room temperature to obtain an emulsion. In addition, as the aloe fermentation product, the product 3, the product 5, the product 33, the product 34, the product 60, the product 61, the product 86, the product 87, obtained in Production Examples 2 to 4, Example product 88 was used.
[0044]
Example 3
cream:
A cream having the following composition was produced.
<Composition> (mass%)
(1) Liquid paraffin 22.0
(2) Vaseline 7.0
(3) Cetanol 1.0
(4) Stearic acid 2.0
(5) Beeswax 2.0
(6) Sorbitan monostearate 3.5
(7) Polyoxyethylene (20) sorbitan monostearate 2.5
(8) Butyl paraoxybenzoate 0.05
(9) Hyaluronic acid 0.1
(10) 1-3 butylene glycol 1.0
(11) Methyl paraoxybenzoate 0.1
(12) Fragrance 0.15
(13) Aloe fermentation product Total amount of 100
<Production method>
(10) and (11) are added to (13), and (9) is dispersed therein to obtain a dispersion. Then, this was emulsified by adding (1) to (8) at 80 ° C., and then adding (12) and cooling to room temperature to obtain a cream. In addition, as the aloe fermentation product, the product 4, the product 20, the product 36, the product 43, the product 44, the product 60, the product 73, the product 78 obtained in Production Examples 2 to 4, Example product 85 was used.
[0046]
【The invention's effect】
The fermentation product obtained by allowing the aloe of the present invention to act on lactic acid bacteria is excellent in moisture retention of the stratum corneum of human skin and is useful as a moisturizer. In addition, the green odor of aloe almost disappeared and the fermentation odor was low. Furthermore, since the saccharides are not substantially added during the fermentation of aloe, there is no sticky feeling often seen in moisturizers. can get.
that's all
Claims (5)
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