JP3870740B2 - Ceramide dispersion, production method and application - Google Patents

Ceramide dispersion, production method and application Download PDF

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JP3870740B2
JP3870740B2 JP2001307228A JP2001307228A JP3870740B2 JP 3870740 B2 JP3870740 B2 JP 3870740B2 JP 2001307228 A JP2001307228 A JP 2001307228A JP 2001307228 A JP2001307228 A JP 2001307228A JP 3870740 B2 JP3870740 B2 JP 3870740B2
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ceramide
fatty acid
dispersion
weight
ester
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JP2003113393A (en
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敦子 阿部
丈史 瀬川
孝一 岩並
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NOF Corp
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NOF Corp
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Description

【0001】
【発明の属する技術分野】
本発明はセラミド分散液、及び製造方法並びに、この分散液を含有することを特徴とする飲食品及び化粧料に関する。さらに詳しくは、長期間保存してもセラミドが沈殿または浮遊しないで均質な乳化または分散または可溶化状態を保持しうる上、飲食品に添加する際に必要とされる耐熱性、耐酸性、耐塩性などに優れた、セラミド分散液及びそれの製造方法並びに、この分散液を含有することを特徴とする飲食品、及び化粧料に関する。
【0002】
【従来の技術】
セラミドは、皮膚角質細胞間に存在する脂質群の50%以上を占めるスフィンゴ脂質の1種で、皮膚の保湿効果、表面保護作用(バリヤー効果)や、肌荒れ防止・改善の効果を有するなど、その生体調節機能が知られており、化粧品分野で広く用いられている。
また、食用としてはセラミドを経口摂取し、皮膚の保護作用や肌荒れ防止の効果を有することが知られている(Elian Lati, FRAGRANCE JOURNAL,23(1)81(1995))。他の技術としては、例えば特開昭60−183032号公報には、カゼインナトリウムなどの蛋白質を用いた乳化物が開示されているが、耐酸性、耐熱性に劣るなど問題がある。
また、特開平1−13010号公報には、ナトリウム型ベントナイトを用いた技術が開示されているが、これは食品には不向きなので食品への添加はできない。さらにまた、特表平6−504265号公報には、乳化剤でポリオキシエチレンラウリルエーテルを用いた乳化物が開示されているが、食品への添加が許可されておらず、食品用途に展開できない。
また、特開平4−299940号公報には、ショ糖リシノール酸エステルと多価アルコールエステルを用いて耐熱性乳化組成物を形成することが提案されているが、酸性条件下でのレトルト条件処理(一般的には125℃で20分間)のような加熱条件が厳しい場合には、全く効果がないことが問題であった。
特開平8−256729号公報には、ポリグリセリン脂肪酸エステルが単独で用いられているが、単独で調製される水溶性組成物は保存安定性が悪く、セラミドの析出が観察されるなど問題があった。
特開2000−139345号公報には、脂肪酸と重合度が3以下のグリセリンのエステルからなる活性剤が開示されているが、この活性剤で調製される乳化組成物は、耐塩性に劣り、食塩水に溶解した際に、セラミドの析出が生じるなど問題があった。
よって、飲食品や化粧料に添加する際に必要とされる性質である、透明性、耐酸性、耐塩性、耐熱性がともに優れ、安定な乳化または分散または可溶化状態を保つセラミド組成物として十分に満足できるものがなく、求められているのが現状であった。
【0003】
【発明が解決しようとする課題】
本発明の目的は、上記のような難溶性セラミドを水溶性組成物とすることで医薬品、化粧料、食品などの幅広い分野での使用を可能にし、長期間保存してもセラミドの遊離または沈殿を生じることなく、均質で安定な乳化、分散、可溶化状態を保持し、さらに、飲食品に添加する際に必要とされる性質の耐酸性、耐塩性、耐熱性に優れ、該組成物を配合した飲食品及び化粧料においても、セラミドの析出、沈澱、浮上の起こらず、透明性に優れたセラミド分散液、及びこの分散液の製造方法、並びに、この分散液を含有する飲食品及び化粧料を提供することにある。
【0004】
【課題を解決するための手段】
本発明者らは上記課題解決のため鋭意研究した結果、特定の2種のポリグリセリン脂肪酸エステルを用いるとセラミドが可溶化状態となることの知見を得て、本発明を完成するに至った。即ち本発明は次の〔1〕〜〔9〕である。
〔1〕 セラミド(A)を水系溶媒に分散してなる分散液であって、炭素数8〜10の脂肪酸とポリグリセリンのエステル(B1)と炭素数12〜18の脂肪酸とポリグリセリンのエステル(B2)とを組合せ用いることを特徴とするセラミド分散液。
〔2〕 B1;炭素数8〜10の脂肪酸とポリグリセリンのエステルが0.1〜20重量%、
B2;炭素数12〜18の脂肪酸とポリグリセリンのエステル、0.1〜30重量%で、その配合比がB1/B2=1/300〜1/0.005である前記〔1〕に記載のセラミド分散液。
【0005】
〔3〕 セラミド/界面活性剤(前記のB1+B2)=1/100〜1/0.004の配合比である前記〔1〕または前記〔2〕記載のセラミド分散液。
〔4〕 セラミド分散液の平均粒径が150nm以下の可溶化状態である前記〔1〕または前記〔2〕記載のセラミド分散液。
〔5〕 A;セラミド0.5〜50重量%と、
B1;炭素数8〜10の脂肪酸とポリグリセリンのエステル0.1〜20重量%と、
B2;炭素数12〜18の脂肪酸とポリグリセリンのエステル0.1〜30重量%と、
C;有機酸またはその塩、0〜20重量%と、
D;アルコール、または水の1種または2種以上0.01〜99.3重量%と からなることを特徴とするセラミド分散液。
【0006】
〔6〕 A;セラミド0.5〜50重量%と、
B1;炭素数8〜10の脂肪酸とポリグリセリンのエステル0.1〜20重量%と、B2;炭素数12〜18の脂肪酸とポリグリセリンのエステル0.1〜30重量%と、
C;有機酸またはその塩、0〜20重量%と、
D;アルコール、または水の1種または2種以上0.01〜99.3重量%とを原料として秤取り、均一に混合することを特徴とするセラミド分散液の製造方法。
【0007】
〔7〕 所定量のセラミドとアルコール、水を配合し、次いでB1の炭素数8〜10の脂肪酸とポリグリセリンのエステルと、B2の炭素数12〜18の脂肪酸とポリグリセリンのエステルを加えて分散させ、その後均質化処理をして平均粒子径150nm以下の可溶化状態とすることを特徴とするセラミド分散液の製造方法。
〔8〕 前記〔1〕〜〔6〕のいずれかに記載のセラミド分散液を含んでなることを特徴とする飲食品。
〔9〕 前記〔1〕〜〔6〕のいずれかに記載のセラミド分散液を含んでなることを特徴とする化粧料。
【0008】
【発明の実施の形態】
本発明で用いられるセラミドは、セラミド及び類似構造をもつセラミド関連物質のことであり、動物由来あるいは植物由来、さらには微生物由来などの起源に限定されるものでもなく、また天然物からの抽出品や合成品などに限定されるものでもない。天然品としては、例えば牛脳より抽出したもの、小麦、米、米ぬか、大豆、黍、ホウレンソウ等の植物より抽出したもの、などが挙げられる。前記のなかでも、本発明のセラミド分散液は、飲食品や化粧料に主に用いられることから、植物由来のセラミドが好ましい。とりわけ、小麦、米ぬかよりの抽出物が入手性等の点から望ましい。使用するセラミドの純度は、特に限定されないが、純度の高いものが好ましいが、好ましくは、1%〜50%、入手性から3〜10%が望ましい。
本発明のセラミド分散液において、セラミドは分散液に対して0.5〜50重量%、好ましくは1〜30重量%、より好ましくは5〜20重量%となるように配合するのが適当である。セラミドの含有量が0.5重量%未満であれば、実用的な価値を有する水溶性組成物を得ることができなく、50重量%より多いと、セラミド分散液の乳化安定性が劣り、好ましくない。
【0009】
本発明に用いる炭素数8〜10の脂肪酸とポリグリセリンのエステル(B1とする)としては、重合度が4以上の通常のポリグリセリンと炭素数が8〜10の脂肪酸とのエステルであり、前記の1種または2種以上のものが使用できる。
また、本発明に用いる炭素数12〜18の脂肪酸とポリグリセリンのエステル(B2とする)としては、重合度が4以上の通常のポリグリセリンと炭素数が12〜18の脂肪酸とのエステルで前記の1種または2種以上のものが使用できる。また、前記のポリグリセリンエステルの乳化剤は、蒸留などで高度に精製されたものであることは必ずしも必要なく、反応混合物であってもよい。
本発明に用いるポリグリセリン脂肪酸エステルB1、B2の合計の配合量は通常0.2〜50重量%、好ましくは1〜30重量%、より好ましくは5〜20重量%である。ポリグリセリン脂肪酸エステルB1、B2の合計の配合量が50重量%を超えると、セラミド分散液を飲食物へ添加した際、親水性乳化剤特有の味が飲食品の味へ影響し、好ましくない。
前記のB1、B2に相当する活性剤の市販品としては、例えば、B1相当として、モノ・ジカプリル酸ヘキサグリセリン[商品名:サンソフトQ−81F 太陽化学(株)製]、[商品名:SYグリスターMCA−750 阪本薬品工業(株)製]等が挙げられる。
またB2相当として、モノオレイン酸デカグリセリン[商品名:サンソフトQ−17UL 太陽化学(株)製]、モノオレイン酸ヘキサグリセリン[商品名:SYグリスターMO−500 阪本薬品工業(株)製]、モノステアリン酸テトラグリセリン[商品名:ポエムJ−4081 理研ビタミン(株)製]等が挙げられる。
【0010】
本発明では、上記のポリグリセリンエステルの乳化剤に加え、本発明の効果を損なわない範囲において、その他の界面活性剤を混合して使用しても構わない。これらの界面活性剤としては、具体的には例えば、ソルビタン脂肪酸エステル、グリセリン脂肪酸エステル、プロピレングリコール脂肪酸エステル、ショ糖脂肪酸エステル、レシチン、サポニン、ステロール、コール酸、デオキシコール酸、ユッカ抽出物、陽イオン性界面活性剤、陰イオン性界面活性剤、両性界面活性剤などがある。
【0011】
本発明で使用する有機酸は、食品で使用できる有機酸であればいずれのものでも使用できる。例えば、クエン酸、リンゴ酸、酒石酸、酢酸、L−アスコルビン酸などが挙げられ、また、これらの塩も含まれる。より好ましくは、クエン酸、クエン酸三ナトリウム、L−アスコルビン酸ナトリウムが挙げられる。
本発明で使用する有機酸の配合量は、通常0〜20重量%、好ましくは0.1〜10重量%、より好ましくは1〜5重量%である。有機酸の配合量が、20重量%を越える場合には分散が安定とならず、好ましくない。
【0012】
本発明で使用するアルコールは、食品に使用できるアルコールであれば、いずれのものでも使用が可能で、アルコール製剤なども使用できる。本発明で使用するアルコールの配合量は、0.01〜20重量%、好ましくは0.05〜10重量%、より好ましくは0.1〜5重量%である。アルコールの配合量が0.01重量%未満ではセラミドの分散性が劣り、好ましくない。アルコールの配合量が20重量%を越える場合は、乳化が不安定となり、好ましくない。
【0013】
本発明で使用する水は、飲食品に配合できる水であれば特に制限はなく、水のみであっても、その他に食品添加物を加えた水であってもよい。食品添加物としては、乳化剤、安定剤、調味料、酸及び塩等が挙げられる。
【0014】
さらに、本発明の液中には、安定剤を添加することができる。本発明に用いる安定剤としては、ガム質や糖アルコール、糖類などが挙げられる。具体的には例えば、アラビアガム、キサンタンガム、トラガントガム、グアガム、ジェランガム、ローカストビーンガム、エチレングリコール、プロピレングリコール、グリセリン、マルチトール、還元水あめ、ラクチトール、パラチニット、エリスリトール、ソルビトール、マンニトール、ブドウ糖果糖液糖、デキストリン、乳糖などが挙げられ、これらの安定剤は、1種単独で、あるいは2種以上混合して使用することができる。
【0015】
本発明のセラミド分散液の製造方法は、前記の各種成分を秤取り、乳化、分散もしくは可溶化安定性を高めるために、コロイドミル、高圧ホモジナイザー、超高圧ホモジナイザー、超音波乳化機などの均質化処理機やホモミキサーなどを使用して、これにより均一な液状のセラミド分散液を得ることができる。
特に、セラミドとアルコール、水を配合して均一とし、さらに前記の炭素数8〜10の脂肪酸とポリグリセリンのエステル(B1)と炭素数12〜18の脂肪酸とポリグリセリンのエステル(B2)加えて、分散してから均一化処理することが望ましい。
セラミド分散液をより安定化させるために、この均質化処理を2回以上行ってもよい。
また、均質化処理は前記の均質化処理機以外にも、転相乳化法、液晶乳化法、D相乳化法及びPIT乳化法なども利用してもよい。
【0016】
本発明のセラミド分散液は、そのまま摂取したり、あるいは主に、スポーツ飲料、炭酸飲料、栄養飲料などの飲料やパン、めん、菓子類、乳肉製品、調味料などの食品にセラミドを添加するための配合原料として使用することができる。その用途としては、特に制限はなく、あらゆる種類の飲食品に適用することができる。
【0017】
本発明のセラミド分散液を含有する食品としては、例えば、パン、ビスケット、キャンディー、ゼリーなどのパン・菓子類や、ヨーグルト、ハムなどの乳肉加工食品や味噌、ソース、タレ、ドレッシングなどの調味料や豆腐、めん類などの加工食品やマーガリン、ファットスプレッド、ショートニングなどの油脂加工食品や粉末飲料、粉末スープなどの粉末食品などやカプセル状、タブレット状、粉末状、顆粒状などにした健康食品などを挙げることができる。
【0018】
本発明のセラミド分散液を含有する飲料としては、食塩などのミネラル、酸味料、甘味料、アルコール、ビタミン、フレーバー及び果汁の中から少なくとも1種を含む飲料、例えばスポーツ飲料、果汁飲料、乳酸菌飲料、アルコール飲料、ビタミン・ミネラル飲料などが挙げられる。さらに、加工乳、豆乳、体質改善のための飲料、生理効果を期待できる天然素材をセラミドと組合わせた飲料などを挙げることができる。
【0019】
また、本発明のセラミド分散液は、食品以外に化粧料や医薬品にも使用できる。化粧料としては、例えば、クリーム、ローション、シャンプーなどの化粧料が挙げられ、医薬品等にもセラミドを添加するための配合原料として使用することができ、その範囲は特に制限はなく、あらゆる種類の化粧料及び医薬品に適用することができる。
【0020】
【発明の効果】
本発明のセラミド分散液は、長期間保存してもセラミドが沈殿あるいは浮遊することなく、均質で安定な状態を保つことができる。また、耐酸性、耐塩性、耐熱性にも優れ、食品及び食品添加物に使用される酸及び塩を配合しても安定性を保つことができ、60〜100℃で殺菌処理または必要に応じて100〜150℃の高温殺菌または滅菌処理することができ、この際の加熱に対しても安定であり、また、長期間保存しても均一な状態を保つことができる。
さらに本発明のセラミド分散液の製造方法は、セラミドを均一に分散でき、容易に150nm以下の可溶化状態とすることができる方法である。
このセラミド分散液は、そのまま食品として摂取でき、さらに各種飲食品の製造に際して配合することによりセラミドを含有する飲食品を得ることができる。またさらに、本発明のセラミド分散液は、化粧料にも配合することができ、塩や酸と併用したり、熱処理した場合にも安定性を有することから有用である。
【0021】
【実施例】
次に、実施例に基づいて本発明をさらに詳細に説明する。
次に用いた試験方法、評価方法を示す。
1.保存安定性試験
実施例及び比較例で得たセラミド分散液を試料として用い、100mLサンプルビンにいれ、調製直後、及び40℃での30日静置保存後の外観状態を目視により評価した。

Figure 0003870740
2.耐熱試験
精製水にセラミド分散液を1%添加し、常温でのセラミド分散液の水溶液の外観状態を目視により評価した。さらに、この水溶液の耐熱性を確認するため、この水溶液を湯煎にかけ液温が85℃に達温した時点より30分間加熱処理を行った。これらの水溶液を室温にて放冷した後、外観状態を目視により評価し、セラミド分散液の水溶液の耐熱性を確認した。
Figure 0003870740
3.乳化分散液の平均粒径の測定
乳化分散液の平均粒径の測定には、サブミクロン粒子分析装置(COULTER N4SD)を用いた。
4.1 耐酸・耐熱試験
クエン酸にてpHを3以下に調整した精製水にセラミド分散液を1%添加し、常温での外観状態を目視により評価し、セラミド分散液の耐酸性を確認した。さらに、この酸性条件での耐熱性を確認するため、この分散液含有酸性水溶液を湯煎にかけ液温が85℃に達温した時点より30分間加熱処理を行った。これらの分散液含有酸性水溶液を室温にて放冷した後、外観状態を目視により評価し、セラミド分散液の耐酸・耐熱性を確認した。
Figure 0003870740
4.2 耐酸保存安定性試験
前記の耐酸・耐熱試験を行った試験溶液の40℃静置保存試験を実施し、30日静置保存後の外観状態を目視により評価した。
Figure 0003870740
5.1 耐塩・耐熱試験
同様に、食塩を3%含有する精製水にセラミド分散液を1%添加し、常温での外観状態を目視により評価し、セラミド分散液の耐塩性を確認した。さらに、この高塩濃度条件での耐熱性を確認するため、この分散液含有食塩水を湯煎にかけ、液温が85℃に達温した時点より30分間加熱処理を行った。これらの分散液含有食塩水の外観状態を目視により評価し、セラミド分散液の耐塩・耐熱性を確認した。
Figure 0003870740
5.2 耐塩保存安定性試験
前記の耐塩・耐熱試験を行った試験溶液の40℃静置保存試験を実施し、30日静置保存後の外観状態を目視により評価した。
Figure 0003870740
【0022】
実施例1
2000mL容ステンレス製ビーカーに、セラミド[商品名:ニッサンN−セラミド 日本油脂(株)製、セラミド純度4%]100g、食品用アルコール製剤[商品名:コーヘルシン 三菱化学フーズ(株)製]5g、水745gの順に入れ、かき混ぜながら80℃に加温した。これにさらに、アスコルビン酸50g、モノオレイン酸(C18)デカグリセリン(G10)[商品名:サンソフトQ−17S 太陽化学(株)製]50g、モノ・ジカプリル酸(C8)ヘキサグリセリン(G6)[商品名:サンソフトQ−81F 太陽化学(株)製]50gを添加して、完全にセラミドを分散した。次いで高圧ホモジナイザーにて均質化処理を行い、平均粒径が90nmのセラミド分散液を得た。(ポリグリセリン脂肪酸エステルB1/ポリグリセリン脂肪酸エステルB2=1/1、セラミド/界面活性剤=1/1)
【0023】
比較例1
モノオレイン酸デカグリセリン及びモノ・ジカプリル酸ヘキサグリセリンの合計100gをモノ・ジカプリル酸ヘキサグリセリン100gとした以外は、実施例1と全く同じ操作を行い、平均粒径が160nmのセラミド分散液を得た。(ポリグリセリン脂肪酸エステルB1/ポリグリセリン脂肪酸エステルB2=1/0、セラミド/界面活性剤=1/1)
【0024】
比較例2
モノオレイン酸デカグリセリン及びモノ・ジカプリル酸ヘキサグリセリンの合計100gをモノオレイン酸デカグリセリン100gとした以外は、実施例1と全く同じ操作を行い、平均粒径が170nmのセラミド分散液を得た。(ポリグリセリン脂肪酸エステルB1/ポリグリセリン脂肪酸エステルB2=1/0、セラミド/界面活性剤=1/1)
【0025】
比較例3
モノオレイン酸デカグリセリン及びモノ・ジカプリル酸ヘキサグリセリンの合計100gをモノミリスチン酸トリグリセリン100gとした以外は、実施例1と全く同じ操作を行い、平均粒径が168nmのセラミド分散液を得た。(ポリグリセリン脂肪酸エステルB1/ポリグリセリン脂肪酸エステルB2=0/1、セラミド/界面活性剤=1/1)
【0026】
【表1】
Figure 0003870740
【0027】
以上の結果から、比較例1は耐塩・耐熱試験溶液及び耐酸・耐熱試験溶液の40℃30日間静置保存における安定性で劣っている、比較例2は耐熱、耐塩、耐酸性が共に劣っており、セラミド分散液の40℃30日間静置保存後はセラミドの浮上が観察され、保存安定性でも劣っている、比較例3は耐塩性が著しく劣っているのに対して、実施例1は耐熱、耐塩、耐酸性が共に優れ、それぞれの試験溶液の40℃30日間静置保存後も安定であることがわかる。
【0028】
実施例2
2000mL容ステンレス製ビーカーに、セラミド100g、無水エタノール5g、水245gの順に入れ、かき混ぜながら70℃に加温した。これにさらに、L−アスコルビン酸ナトリウム30g、モノオレイン酸(C18)デカグリセリン(G10)[商品名:ポエムJ−0381 理研ビタミン(株)製]70g、モノカプリル酸(8)デカグリセリン(G10)[商品名:SYグリスターMCA−750 阪本薬品工業(株)製]30g、還元水あめ[商品名:エスイー58 日研化学(株)製]520gを添加して完全に分散した。次いで高圧ホモジナイザーにて均質化処理を行い、平均粒径が75nmのセラミド分散液を得た。(ポリグリセリン脂肪酸エステルB1/ポリグリセリン脂肪酸エステルB2=3/7、セラミド/界面活性剤=1/1)
【0029】
比較例4
モノカプリル酸デカグリセリンをモノラウリン酸ヘキサグリセリン[商品名:SYグリスターML−500 阪本薬品工業(株)製]とした以外は、実施例2と全く同じ操作を行い、平均粒径が180nmのセラミド分散液を得た。(ポリグリセリン脂肪酸エステルB1/ポリグリセリン脂肪酸エステルB2=0/1、セラミド/界面活性剤=1/1)
【0030】
比較例5
モノカプリル酸デカグリセリンをモノオレイン酸ペンタグリセリン[商品名:サンソフトA−171E 太陽化学(株)製]とした以外は、実施例2と全く同じ操作を行い、平均粒径が165nmのセラミド分散液を得た。(ポリグリセリン脂肪酸エステルB1/ポリグリセリン脂肪酸エステルB2=0/1、セラミド/界面活性剤=1/1)
【0031】
【表2】
Figure 0003870740
【0032】
以上の結果から、比較例4は、耐塩・耐熱試験、耐酸・耐熱試験における保存安定性が劣っている、比較例5は、耐塩・耐熱性試験における保存安定性が劣っているのに対して、実施例2は、耐塩・耐熱試験溶液の40℃30日間静置保存後において、わずかなセラミドの析出が観察されたが、熱、酸に対する安定性は実施例1と同等であり優れていることがわかる。
【0033】
実施例3
2000mL容ステンレス製ビーカーに、セラミド200g、無水エタノール10g、水350gの順に入れ、かき混ぜながら70℃に加温した。これにさらに、クエン酸100g、モノオレイン酸ヘキサグリセリン[商品名:SYグリスターMO500 阪本薬品工業(株)製]70g、モノカプリル酸デカグリセリン[商品名:SYグリスターMCA−750 阪本薬品工業(株)製]30g、グリセリン[商品名:食添用グリセリン 日本油脂(株)製]240gを添加して、完全にセラミドを分散した。次いで高圧ホモジナイザーにて均質化処理を行い、平均粒径が80nmの均一なセラミド分散液を得た。(ポリグリセリン脂肪酸エステルB1/ポリグリセリン脂肪酸エステルB2=3/7、セラミド/界面活性剤=2/1)
【0034】
実施例4
実施例3の水350g及びグリセリン240gを水590gとした以外は、実施例3と全く同じ操作を行い、平均粒径が92nmの均一なセラミド分散液を得た。(ポリグリセリン脂肪酸エステルB1/ポリグリセリン脂肪酸エステルB2=3/7、セラミド/界面活性剤=2/1)
【0035】
実施例5
実施例3の水及び無水エタノールの合計360gを水360gとした以外は、実施例3と全く同じ操作を行い、平均粒径が85nmのセラミド分散液を得た。(ポリグリセリン脂肪酸エステルB1/ポリグリセリン脂肪酸エステルB2=3/7、セラミド/界面活性剤=2/1)
【0036】
実施例6
実施例3のクエン酸及びグリセリンの合計340gをグリセリン340gとした以外は、実施例3と全く同じ操作を行い、平均粒径が96nmのセラミド分散液を得た。(ポリグリセリン脂肪酸エステルB1/ポリグリセリン脂肪酸エステルB2=3/7、セラミド/界面活性剤=2/1)
【0037】
実施例7
実施例3の水、無水エタノール、クエン酸及びグリセリンの合計700gを水700gとした以外は、実施例3と全く同じ操作を行い、平均粒径が110nmのセラミド分散液を得た。(ポリグリセリン脂肪酸エステルB1/ポリグリセリン脂肪酸エステルB2=3/7、セラミド/界面活性剤=2/1)
【0038】
【表3】
Figure 0003870740
【0039】
以上の結果から、実施例3は、耐塩、耐酸性が共に優れ、40℃30日間静置保存後も安定であり、また、実施例4〜7は、セラミド分散液、耐塩・耐熱試験溶液、耐酸・耐熱試験溶液の40℃30日間静置保存において、安定性で若干劣っていたが使用できないほどではなかった。
【0040】
実施例8
実施例2のセラミド分散液を用いて、第7表の組成で飲料を調製し、100mL容ビンに充填し密封した。この飲料を95℃で15分間加熱殺菌し、飲料を調製した。このようにして得られた飲料を40℃の恒温槽に30日間静置保存した後、分散安定性を評価したところ、セラミドの析出は全く認められず、分散状態は安定であった。
【0041】
比較例6
第7表の配合材料中、実施例2のセラミド分散液を比較例5のセラミド分散液に代えた以外は実施例5と同様にして飲料を調製した。このようにして得られた飲料を40℃の恒温槽に30日間静置保存した後、分散安定性を評価したところ、セラミドの析出が認められ、分散状態は不安定であった。
【0042】
【表4】
Figure 0003870740
【0043】
なお、表4中の結果の評価基準は、次のとおりとした。
Figure 0003870740
【0044】
以上の結果から、実際の飲料に配合した本発明の実施例8は、耐酸性、耐塩性、耐熱性等に優れているのに対して、比較例6が耐酸性、耐塩性、耐熱性等に劣っていることがわかる。
以上の結果から、本発明の実施例のものが、比較例に比べて、耐酸性、耐塩性、耐熱性等に優れていることがわかる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ceramide dispersion, a production method, and a food and drink and a cosmetic containing the dispersion. More specifically, the ceramide does not precipitate or float even after long-term storage and can maintain a homogeneous emulsification, dispersion, or solubilized state, and also has heat resistance, acid resistance, and salt resistance required when added to food and drink. The present invention relates to a ceramide dispersion excellent in properties and the like, a method for producing the same, a food and drink characterized by containing this dispersion, and a cosmetic.
[0002]
[Prior art]
Ceramide is a sphingolipid that accounts for 50% or more of the lipid group existing between skin keratinocytes, and has the effect of moisturizing skin, protecting the surface (barrier effect), preventing and improving rough skin. The bioregulatory function is known and widely used in the cosmetic field.
In addition, it is known that ceramide is taken orally as an edible substance and has an effect of protecting the skin and preventing rough skin (Elian Lati, FRAGRANCE JOURNAL, 23 (1) 81 (1995)). As another technique, for example, JP-A-60-183032 discloses an emulsion using a protein such as sodium caseinate, but there are problems such as poor acid resistance and heat resistance.
JP-A-1-13010 discloses a technique using sodium-type bentonite, but this is unsuitable for foods and cannot be added to foods. Furthermore, Japanese Patent Publication No. 6-504265 discloses an emulsion using polyoxyethylene lauryl ether as an emulsifier, but addition to food is not permitted and cannot be developed for food use.
JP-A-4-299940 proposes forming a heat-resistant emulsified composition using sucrose ricinoleic acid ester and polyhydric alcohol ester. Retort condition treatment under acidic conditions ( In general, when heating conditions such as 125 ° C. for 20 minutes are severe, there is a problem that there is no effect.
In JP-A-8-256729, polyglycerin fatty acid ester is used alone, but the water-soluble composition prepared alone has problems such as poor storage stability and ceramide precipitation. It was.
JP 2000-139345 A discloses an activator comprising a fatty acid and an ester of glycerin having a polymerization degree of 3 or less. However, an emulsion composition prepared with this activator is inferior in salt resistance, When dissolved in water, there was a problem such as precipitation of ceramide.
Therefore, as a ceramide composition that is excellent in transparency, acid resistance, salt resistance, and heat resistance, which are properties required when added to foods and beverages and cosmetics, and maintains a stable emulsified or dispersed or solubilized state The current situation is that there is nothing that can be fully satisfied.
[0003]
[Problems to be solved by the invention]
The object of the present invention is to make the above-mentioned hardly soluble ceramide as a water-soluble composition, so that it can be used in a wide range of fields such as pharmaceuticals, cosmetics, foods, etc. In addition, the composition maintains a homogeneous and stable emulsification, dispersion, and solubilized state, and is excellent in acid resistance, salt resistance, and heat resistance in properties required when added to food and drink. Also in the blended food and drink and cosmetics, ceramide does not precipitate, precipitate or float, and has excellent transparency, a method for producing this dispersion, and food and drink and cosmetics containing this dispersion Is to provide a fee.
[0004]
[Means for Solving the Problems]
As a result of intensive studies to solve the above problems, the present inventors have obtained the knowledge that ceramide is in a solubilized state when two specific types of polyglycerin fatty acid esters are used, and the present invention has been completed. That is, the present invention includes the following [1] to [9].
[1] A dispersion obtained by dispersing ceramide (A) in an aqueous solvent, which is an ester (B1) of a fatty acid having 8 to 10 carbon atoms and a polyglycerol, an ester of a fatty acid having 12 to 18 carbon atoms and a polyglycerol ( A ceramide dispersion characterized by using in combination with B2).
[2] B1: 0.1 to 20% by weight of an ester of a fatty acid having 8 to 10 carbon atoms and polyglycerin,
B2: An ester of a fatty acid having 12 to 18 carbon atoms and polyglycerol, 0.1 to 30% by weight, and the blending ratio is B1 / B2 = 1/300 to 1 / 0.005. Ceramide dispersion.
[0005]
[3] The ceramide dispersion according to [1] or [2] above, wherein the ceramide / surfactant (B1 + B2) is 1/100 to 1 / 0.004.
[4] The ceramide dispersion according to [1] or [2] above, wherein the ceramide dispersion is in a solubilized state with an average particle size of 150 nm or less.
[5] A; 0.5 to 50% by weight of ceramide;
B1; 0.1 to 20% by weight of an ester of a fatty acid having 8 to 10 carbon atoms and polyglycerin;
B2; 0.1 to 30% by weight of an ester of a fatty acid having 12 to 18 carbon atoms and polyglycerin;
C: an organic acid or a salt thereof, 0 to 20% by weight,
D: A ceramide dispersion characterized by comprising one or more of alcohol or water and 0.01 to 99.3% by weight.
[0006]
[6] A: 0.5 to 50% by weight of ceramide;
B1; 0.1 to 20% by weight of an ester of a fatty acid having 8 to 10 carbon atoms and polyglycerin; B2; 0.1 to 30% by weight of an ester of a fatty acid having 12 to 18 carbon atoms and polyglycerin;
C: an organic acid or a salt thereof, 0 to 20% by weight,
D: A method for producing a ceramide dispersion, wherein one or more of alcohol or water and 0.01 to 99.3% by weight are weighed and mixed uniformly.
[0007]
[7] A predetermined amount of ceramide, alcohol and water are blended, and then B1 fatty acid having 8 to 10 carbon atoms and polyglycerin ester, and B2 having 12 to 18 carbon atoms and polyglycerin ester are added and dispersed. And then homogenizing to obtain a solubilized state having an average particle diameter of 150 nm or less.
[8] A food or drink comprising the ceramide dispersion according to any one of [1] to [6].
[9] A cosmetic comprising the ceramide dispersion according to any one of [1] to [6].
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The ceramide used in the present invention is a ceramide and a ceramide-related substance having a similar structure, and is not limited to an origin such as animal origin, plant origin, or microorganism origin, and an extract from a natural product. And is not limited to synthetic products. Examples of natural products include those extracted from bovine brain, those extracted from plants such as wheat, rice, rice bran, soybean, rice bran, and spinach. Among these, since the ceramide dispersion liquid of the present invention is mainly used for foods and drinks and cosmetics, plant-derived ceramides are preferable. In particular, an extract from wheat or rice bran is desirable from the standpoint of availability. The purity of the ceramide to be used is not particularly limited, but a high purity is preferable, but 1% to 50% is preferable, and 3 to 10% is desirable from the viewpoint of availability.
In the ceramide dispersion of the present invention, the ceramide is suitably blended so as to be 0.5 to 50% by weight, preferably 1 to 30% by weight, more preferably 5 to 20% by weight based on the dispersion. . If the content of ceramide is less than 0.5% by weight, a water-soluble composition having practical value cannot be obtained, and if it is more than 50% by weight, the emulsion stability of the ceramide dispersion is inferior, preferably Absent.
[0009]
The ester of a fatty acid having 8 to 10 carbon atoms and polyglycerol (referred to as B1) used in the present invention is an ester of a normal polyglycerol having a polymerization degree of 4 or more and a fatty acid having 8 to 10 carbon atoms, One or more of these can be used.
Moreover, as ester (it is set as B2) of a C12-C18 fatty acid and polyglycerin used for this invention, it is an ester of normal polyglycerol with a polymerization degree of 4 or more, and a C12-C18 fatty acid. One or more of these can be used. The polyglycerin ester emulsifier is not necessarily highly purified by distillation or the like, and may be a reaction mixture.
The total amount of the polyglycerol fatty acid esters B1 and B2 used in the present invention is usually 0.2 to 50% by weight, preferably 1 to 30% by weight, and more preferably 5 to 20% by weight. When the total blending amount of the polyglycerin fatty acid esters B1 and B2 exceeds 50% by weight, the taste unique to the hydrophilic emulsifier affects the taste of the food and drink when the ceramide dispersion is added to the food and drink.
Examples of commercially available activators corresponding to B1 and B2 include, for example, hexaglycerin mono-dicaprylate [trade name: Sunsoft Q-81F manufactured by Taiyo Kagaku Co., Ltd.], [trade name: SY. Glister MCA-750 manufactured by Sakamoto Pharmaceutical Co., Ltd.].
In addition, as equivalent to B2, monooleic acid decaglycerin [trade name: Sunsoft Q-17UL manufactured by Taiyo Kagaku Co., Ltd.], monooleic acid hexaglycerin [trade name: SY Glyster MO-500 manufactured by Sakamoto Pharmaceutical Co., Ltd.], And tetraglycerin monostearate [trade name: Poem J-4081, manufactured by Riken Vitamin Co., Ltd.].
[0010]
In the present invention, in addition to the above-mentioned polyglycerin ester emulsifier, other surfactants may be mixed and used as long as the effects of the present invention are not impaired. Specific examples of these surfactants include sorbitan fatty acid ester, glycerin fatty acid ester, propylene glycol fatty acid ester, sucrose fatty acid ester, lecithin, saponin, sterol, cholic acid, deoxycholic acid, yucca extract, positive Examples include ionic surfactants, anionic surfactants, and amphoteric surfactants.
[0011]
The organic acid used in the present invention can be any organic acid that can be used in food. For example, citric acid, malic acid, tartaric acid, acetic acid, L-ascorbic acid and the like can be mentioned, and salts thereof are also included. More preferably, citric acid, trisodium citrate, and sodium L-ascorbate are used.
The amount of the organic acid used in the present invention is usually 0 to 20% by weight, preferably 0.1 to 10% by weight, and more preferably 1 to 5% by weight. When the amount of the organic acid exceeds 20% by weight, the dispersion is not stable, which is not preferable.
[0012]
As the alcohol used in the present invention, any alcohol can be used as long as it can be used for food, and an alcohol preparation or the like can also be used. The compounding quantity of the alcohol used by this invention is 0.01-20 weight%, Preferably it is 0.05-10 weight%, More preferably, it is 0.1-5 weight%. If the blending amount of the alcohol is less than 0.01% by weight, the dispersibility of the ceramide is poor, which is not preferable. When the blending amount of the alcohol exceeds 20% by weight, the emulsification becomes unstable, which is not preferable.
[0013]
The water used in the present invention is not particularly limited as long as it can be added to food and drink, and may be water alone or water with other food additives added thereto. Examples of food additives include emulsifiers, stabilizers, seasonings, acids and salts.
[0014]
Furthermore, a stabilizer can be added to the liquid of the present invention. Examples of the stabilizer used in the present invention include gum, sugar alcohol, and sugar. Specifically, for example, gum arabic, xanthan gum, gum tragacanth, guar gum, gellan gum, locust bean gum, ethylene glycol, propylene glycol, glycerin, maltitol, reduced starch syrup, lactitol, palatinit, erythritol, sorbitol, mannitol, glucose fructose liquid sugar, A dextrin, lactose, etc. are mentioned, These stabilizers can be used individually by 1 type or in mixture of 2 or more types.
[0015]
The method for producing a ceramide dispersion of the present invention is a homogenization of a colloid mill, a high-pressure homogenizer, an ultra-high pressure homogenizer, an ultrasonic emulsifier, etc., in order to improve the emulsification, dispersion or solubilization stability by weighing the various components described above. By using a processor or a homomixer, a uniform liquid ceramide dispersion can be obtained.
In particular, ceramide, alcohol, and water are blended and made uniform, and further, the fatty acid having 8 to 10 carbon atoms and polyglycerol ester (B1), the fatty acid having 12 to 18 carbon atoms and polyglycerol ester (B2) are added. It is desirable to perform the homogenization after the dispersion.
In order to further stabilize the ceramide dispersion, this homogenization treatment may be performed twice or more.
In addition to the homogenizer, the homogenization treatment may utilize a phase inversion emulsification method, a liquid crystal emulsification method, a D phase emulsification method, a PIT emulsification method, and the like.
[0016]
The ceramide dispersion of the present invention is ingested as it is, or mainly for adding ceramide to beverages such as sports drinks, carbonated drinks, nutrition drinks and foods such as bread, noodles, confectionery, dairy products, seasonings, etc. It can be used as a blending raw material. There is no restriction | limiting in particular as the use, It can apply to all kinds of food-drinks.
[0017]
Examples of the food containing the ceramide dispersion of the present invention include bread and confectionery such as bread, biscuits, candy and jelly, processed milk products such as yogurt and ham, and seasonings such as miso, sauce, sauce and dressing. And processed foods such as tofu and noodles, processed oils and fats such as margarine, fat spread and shortening, powdered foods such as powdered beverages and powdered soups, and health foods such as capsules, tablets, powders and granules Can be mentioned.
[0018]
Examples of the beverage containing the ceramide dispersion of the present invention include beverages containing at least one of minerals such as salt, acidulants, sweeteners, alcohol, vitamins, flavors and fruit juices, such as sports beverages, fruit juice beverages, and lactic acid bacteria beverages. Alcoholic beverages, vitamin / mineral beverages, etc. Furthermore, processed milk, soy milk, beverages for improving the constitution, beverages combining natural materials that can be expected to have physiological effects with ceramide, and the like can be mentioned.
[0019]
Moreover, the ceramide dispersion liquid of the present invention can be used for cosmetics and pharmaceuticals in addition to foods. Examples of cosmetics include cosmetics such as creams, lotions, shampoos, etc., and can be used as a blending raw material for adding ceramide to pharmaceuticals, etc. The range is not particularly limited, and all kinds of It can be applied to cosmetics and medicines.
[0020]
【The invention's effect】
The ceramide dispersion of the present invention can maintain a homogeneous and stable state without precipitation or floating of ceramide even when stored for a long period of time. In addition, it has excellent acid resistance, salt resistance, and heat resistance, and can maintain stability even when it is mixed with acids and salts used in foods and food additives. Can be sterilized or sterilized at a high temperature of 100 to 150 ° C., is stable against heating, and can maintain a uniform state even when stored for a long period of time.
Furthermore, the manufacturing method of the ceramide dispersion liquid of this invention is a method which can disperse | distribute ceramide uniformly and can be easily made into the solubilization state of 150 nm or less.
This ceramide dispersion liquid can be taken as it is as a food, and further, food and drink containing ceramide can be obtained by blending it in the production of various foods and drinks. Furthermore, the ceramide dispersion of the present invention can be blended in cosmetics, and is useful because it has stability even when used in combination with a salt or acid, or when heat-treated.
[0021]
【Example】
Next, based on an Example, this invention is demonstrated further in detail.
Next, the test method and evaluation method used are shown.
1. Storage Stability Test Using the ceramide dispersions obtained in Examples and Comparative Examples as samples, they were placed in 100 mL sample bottles, and the appearance of the samples immediately after preparation and after standing at 40 ° C. for 30 days was visually evaluated.
Figure 0003870740
2. 1% of the ceramide dispersion was added to purified water for heat resistance test, and the appearance of the aqueous solution of the ceramide dispersion at room temperature was visually evaluated. Furthermore, in order to confirm the heat resistance of this aqueous solution, this aqueous solution was subjected to a hot water bath, and heat treatment was performed for 30 minutes from the time when the liquid temperature reached 85 ° C. After these aqueous solutions were allowed to cool at room temperature, the appearance was visually evaluated to confirm the heat resistance of the aqueous solution of the ceramide dispersion.
Figure 0003870740
3. Measurement of average particle diameter of emulsified dispersion A submicron particle analyzer (COULTER N4SD) was used to measure the average particle diameter of the emulsified dispersion.
4.1 Acid resistance / heat resistance test 1% ceramide dispersion was added to purified water adjusted to pH 3 or less with citric acid, and the appearance at room temperature was visually evaluated to confirm the acid resistance of the ceramide dispersion. . Furthermore, in order to confirm the heat resistance under the acidic conditions, the dispersion-containing acidic aqueous solution was subjected to a hot water bath and subjected to a heat treatment for 30 minutes from the time when the liquid temperature reached 85 ° C. After these dispersion-containing acidic aqueous solutions were allowed to cool at room temperature, the appearance was visually evaluated to confirm the acid resistance and heat resistance of the ceramide dispersion.
Figure 0003870740
4.2 Acid Resistance Storage Stability Test The test solution subjected to the acid resistance / heat resistance test described above was subjected to a 40 ° C. storage test, and the appearance after 30 days storage was visually evaluated.
Figure 0003870740
5.1 As in the salt resistance / heat test, 1% of the ceramide dispersion was added to purified water containing 3% of sodium chloride, and the appearance at room temperature was visually evaluated to confirm the salt resistance of the ceramide dispersion. Furthermore, in order to confirm the heat resistance under this high salt concentration condition, this dispersion-containing saline was subjected to a hot water bath, and heat treatment was performed for 30 minutes from the time when the liquid temperature reached 85 ° C. The appearance of these dispersion-containing saline was visually evaluated to confirm the salt resistance and heat resistance of the ceramide dispersion.
Figure 0003870740
5.2 Salt Resistance Storage Stability Test The test solution subjected to the salt resistance / heat resistance test described above was subjected to a 40 ° C. still storage test, and the appearance after 30 days storage was visually evaluated.
Figure 0003870740
[0022]
Example 1
In a 2000 mL stainless steel beaker, 100 g of ceramide [trade name: Nissan N-Ceramide, manufactured by Nippon Oil & Fats Co., Ltd., ceramide purity 4%], 5 g of alcohol preparation for food [trade name: manufactured by Kohersin Mitsubishi Chemical Foods Co., Ltd.], water It put in order of 745g, and it heated at 80 degreeC, stirring. Furthermore, ascorbic acid 50g, monooleic acid (C18) decaglycerin (G10) [trade name: Sunsoft Q-17S Taiyo Kagaku Co., Ltd.] 50g, mono-dicaprylic acid (C8) hexaglycerin (G6) [ [Product name: Sunsoft Q-81F, Taiyo Kagaku Co., Ltd.] 50 g was added to completely disperse the ceramide. Subsequently, homogenization was performed with a high-pressure homogenizer to obtain a ceramide dispersion having an average particle diameter of 90 nm. (Polyglycerin fatty acid ester B1 / polyglycerin fatty acid ester B2 = 1/1, ceramide / surfactant = 1/1)
[0023]
Comparative Example 1
Except for the total 100 g of monooleic acid decaglycerin and mono-dicaprylic acid hexaglycerin being 100 g of mono-dicaprylic acid hexaglycerin, the same operation as in Example 1 was performed to obtain a ceramide dispersion having an average particle size of 160 nm. . (Polyglycerin fatty acid ester B1 / polyglycerin fatty acid ester B2 = 1/0, ceramide / surfactant = 1/1)
[0024]
Comparative Example 2
Except for the total 100 g of monooleic acid decaglycerin and mono-dicaprylic acid hexaglycerin being 100 g of monooleic acid decaglycerin, the same operation as in Example 1 was performed to obtain a ceramide dispersion having an average particle size of 170 nm. (Polyglycerin fatty acid ester B1 / polyglycerin fatty acid ester B2 = 1/0, ceramide / surfactant = 1/1)
[0025]
Comparative Example 3
Except that the total 100 g of monooleic acid decaglycerin and mono-dicaprylic acid hexaglycerin was changed to 100 g of monomyristic acid triglycerin, the same operation as in Example 1 was performed to obtain a ceramide dispersion having an average particle diameter of 168 nm. (Polyglycerin fatty acid ester B1 / polyglycerin fatty acid ester B2 = 0/1, ceramide / surfactant = 1/1)
[0026]
[Table 1]
Figure 0003870740
[0027]
From the above results, Comparative Example 1 is inferior in stability when stored at 40 ° C. for 30 days in a salt / heat resistance test solution and an acid / heat resistance test solution, and Comparative Example 2 is inferior in heat resistance, salt resistance, and acid resistance. Thus, after the ceramide dispersion was stored at 40 ° C. for 30 days, the ceramide was observed to float and the storage stability was inferior. In Comparative Example 3, the salt resistance was remarkably inferior. It can be seen that heat resistance, salt resistance, and acid resistance are all excellent, and that each test solution is stable after standing at 40 ° C. for 30 days.
[0028]
Example 2
In a 2000 mL stainless steel beaker, 100 g of ceramide, 5 g of anhydrous ethanol, and 245 g of water were placed in this order, and the mixture was heated to 70 ° C. while stirring. Furthermore, 30 g of sodium L-ascorbate, monooleic acid (C18) decaglycerin (G10) [trade name: Poem J-0381 manufactured by Riken Vitamin Co., Ltd.] 70 g, monocaprylic acid (8) decaglycerin (G10) [Product name: SY Glister MCA-750 manufactured by Sakamoto Yakuhin Kogyo Co., Ltd.] 30 g, reduced water candy [Product name: S58 manufactured by Nikken Chemical Co., Ltd.] was added and completely dispersed. Next, homogenization was performed with a high-pressure homogenizer to obtain a ceramide dispersion having an average particle size of 75 nm. (Polyglycerin fatty acid ester B1 / polyglycerin fatty acid ester B2 = 3/7, ceramide / surfactant = 1/1)
[0029]
Comparative Example 4
A ceramide dispersion having an average particle size of 180 nm was carried out in exactly the same manner as in Example 2, except that monocaprylic acid decaglycerin was changed to hexalauric acid monolaurate [trade name: SY Glyster ML-500, manufactured by Sakamoto Pharmaceutical Co., Ltd.]. A liquid was obtained. (Polyglycerin fatty acid ester B1 / polyglycerin fatty acid ester B2 = 0/1, ceramide / surfactant = 1/1)
[0030]
Comparative Example 5
A ceramide dispersion having an average particle diameter of 165 nm was carried out in exactly the same manner as in Example 2 except that monocaprylic acid decaglycerin was changed to monooleic acid pentaglycerin [trade name: Sunsoft A-171E Taiyo Kagaku Co., Ltd.]. A liquid was obtained. (Polyglycerin fatty acid ester B1 / polyglycerin fatty acid ester B2 = 0/1, ceramide / surfactant = 1/1)
[0031]
[Table 2]
Figure 0003870740
[0032]
From the above results, Comparative Example 4 is inferior in storage stability in salt / heat resistance test and acid / heat resistance test, whereas Comparative Example 5 is inferior in storage stability in salt / heat resistance test. In Example 2, slight precipitation of ceramide was observed after the salt / heat resistance test solution was allowed to stand at 40 ° C. for 30 days, but the stability against heat and acid was equivalent to that of Example 1 and was excellent. I understand that.
[0033]
Example 3
In a 2000 mL stainless steel beaker, 200 g of ceramide, 10 g of absolute ethanol, and 350 g of water were added in this order, and the mixture was heated to 70 ° C. while stirring. In addition, citric acid 100 g, monooleic acid hexaglycerin [trade name: SY Glyster MO500 manufactured by Sakamoto Pharmaceutical Co., Ltd.] 70 g, monocaprylic acid decaglycerin [trade name: SY Glyster MCA-750 Sakamoto Pharmaceutical Co., Ltd. Product] 30 g, glycerin [trade name: glycerin for food addition, manufactured by Nippon Oil & Fats Co., Ltd.] 240 g was added to completely disperse the ceramide. Subsequently, homogenization was performed with a high-pressure homogenizer to obtain a uniform ceramide dispersion having an average particle size of 80 nm. (Polyglycerin fatty acid ester B1 / polyglycerin fatty acid ester B2 = 3/7, ceramide / surfactant = 2/1)
[0034]
Example 4
Except that 350 g of water and 240 g of glycerin in Example 3 were changed to 590 g of water, the same operation as in Example 3 was performed to obtain a uniform ceramide dispersion having an average particle size of 92 nm. (Polyglycerin fatty acid ester B1 / polyglycerin fatty acid ester B2 = 3/7, ceramide / surfactant = 2/1)
[0035]
Example 5
Except that the total 360 g of water and absolute ethanol in Example 3 was changed to 360 g of water, the same operation as in Example 3 was performed to obtain a ceramide dispersion having an average particle diameter of 85 nm. (Polyglycerin fatty acid ester B1 / polyglycerin fatty acid ester B2 = 3/7, ceramide / surfactant = 2/1)
[0036]
Example 6
Except that the total of 340 g of citric acid and glycerin in Example 3 was changed to 340 g of glycerin, the same operation as in Example 3 was performed to obtain a ceramide dispersion having an average particle size of 96 nm. (Polyglycerin fatty acid ester B1 / polyglycerin fatty acid ester B2 = 3/7, ceramide / surfactant = 2/1)
[0037]
Example 7
Except that the total 700 g of water, absolute ethanol, citric acid and glycerin in Example 3 was changed to 700 g of water, the same operation as in Example 3 was performed to obtain a ceramide dispersion having an average particle size of 110 nm. (Polyglycerin fatty acid ester B1 / polyglycerin fatty acid ester B2 = 3/7, ceramide / surfactant = 2/1)
[0038]
[Table 3]
Figure 0003870740
[0039]
From the above results, Example 3 is excellent in both salt resistance and acid resistance, and is stable after storage at 40 ° C. for 30 days. Examples 4 to 7 are ceramide dispersions, salt / heat resistance test solutions, When the acid / heat resistance test solution was stored at 40 ° C. for 30 days, the stability was slightly inferior, but it was not so unusable.
[0040]
Example 8
Using the ceramide dispersion of Example 2, a beverage was prepared with the composition shown in Table 7, filled into a 100 mL bottle and sealed. This beverage was heat sterilized at 95 ° C. for 15 minutes to prepare a beverage. The beverage thus obtained was stored in a constant temperature bath at 40 ° C. for 30 days, and then the dispersion stability was evaluated. As a result, no precipitation of ceramide was observed and the dispersion state was stable.
[0041]
Comparative Example 6
A beverage was prepared in the same manner as in Example 5 except that the ceramide dispersion liquid of Example 2 was replaced with the ceramide dispersion liquid of Comparative Example 5 in the blended materials shown in Table 7. The beverage obtained in this manner was stored in a constant temperature bath at 40 ° C. for 30 days and then evaluated for dispersion stability. As a result, ceramide precipitation was observed and the dispersion state was unstable.
[0042]
[Table 4]
Figure 0003870740
[0043]
The evaluation criteria for the results in Table 4 were as follows.
Figure 0003870740
[0044]
From the above results, Example 8 of the present invention blended in an actual beverage is excellent in acid resistance, salt resistance, heat resistance, etc., whereas Comparative Example 6 is acid resistance, salt resistance, heat resistance, etc. It turns out that it is inferior to.
From the above results, it can be seen that the examples of the present invention are superior in acid resistance, salt resistance, heat resistance and the like as compared with the comparative examples.

Claims (9)

セラミド(A)を水系溶媒に分散してなる分散液であって、炭素数8〜10の脂肪酸とポリグリセリンのエステル(B1)と炭素数12〜18の脂肪酸とポリグリセリンのエステル(B2)とを組合せ用いることを特徴とするセラミド分散液。A dispersion obtained by dispersing ceramide (A) in an aqueous solvent, which includes a fatty acid having 8 to 10 carbon atoms and a polyglycerol ester (B1), a fatty acid having 12 to 18 carbon atoms and a polyglycerol ester (B2) A ceramide dispersion characterized by using in combination. B1;炭素数8〜10の脂肪酸とポリグリセリンのエステルが0.1〜20重量%、
B2;炭素数12〜18の脂肪酸とポリグリセリンのエステル、0.1〜30重量%で、その配合比がB1/B2=1/300〜1/0.005である請求項1に記載のセラミド分散液。
B1: 0.1 to 20% by weight of an ester of a fatty acid having 8 to 10 carbon atoms and polyglycerol,
The ceramide according to claim 1, wherein B2: ester of a fatty acid having 12 to 18 carbon atoms and polyglycerol, 0.1 to 30% by weight, and the blending ratio is B1 / B2 = 1/300 to 1 / 0.005. Dispersion.
セラミド/界面活性剤(前記のB1+B2)=1/100〜1/0.004の配合比である請求項1または請求項2記載のセラミド分散液。The ceramide dispersion liquid according to claim 1 or 2, wherein the ceramide / surfactant (B1 + B2) is 1/100 to 1 / 0.004. セラミド分散液の平均粒径が150nm以下の可溶化状態である請求項1または請求項2記載のセラミド分散液。The ceramide dispersion according to claim 1 or 2, wherein the ceramide dispersion is in a solubilized state with an average particle size of 150 nm or less. A;セラミド0.5〜50重量%と、
B1;炭素数8〜10の脂肪酸とポリグリセリンのエステル0.1〜20重量%と、
B2;炭素数12〜18の脂肪酸とポリグリセリンのエステル0.1〜30重量%と、
C;有機酸またはその塩、0〜20重量%と、
D;アルコール、または水の1種または2種以上0.01〜99.3重量%
からなることを特徴とするセラミド分散液。
A: 0.5 to 50% by weight of ceramide;
B1; 0.1 to 20% by weight of an ester of a fatty acid having 8 to 10 carbon atoms and polyglycerin;
B2; 0.1 to 30% by weight of an ester of a fatty acid having 12 to 18 carbon atoms and polyglycerin;
C: an organic acid or a salt thereof, 0 to 20% by weight,
D: One or more kinds of alcohol or water 0.01 to 99.3 wt%
A ceramide dispersion characterized by comprising:
A;セラミド0.5〜50重量%と、
B1;炭素数8〜10の脂肪酸とポリグリセリンのエステル0.1〜20重量%と、
B2;炭素数12〜18の脂肪酸とポリグリセリンのエステル0.1〜30重量%と、
C;有機酸またはその塩、0〜20重量%と、
D;アルコール、または水の1種または2種以上0.01〜99.3重量%とを原料として秤取り、均一に混合することを特徴とするセラミド分散液の製造方法。
A: 0.5 to 50% by weight of ceramide;
B1; 0.1 to 20% by weight of an ester of a fatty acid having 8 to 10 carbon atoms and polyglycerin;
B2; 0.1 to 30% by weight of an ester of a fatty acid having 12 to 18 carbon atoms and polyglycerin;
C: an organic acid or a salt thereof, 0 to 20% by weight,
D: A method for producing a ceramide dispersion, wherein one or more of alcohol or water and 0.01 to 99.3% by weight are weighed and mixed uniformly.
所定量のセラミドとアルコール、水を配合し、次いでB1の炭素数8〜10の脂肪酸とポリグリセリンのエステルと、B2の炭素数12〜18の脂肪酸とポリグリセリンのエステルを加えて分散させ、その後均質化処理をして平均粒子径150nm以下の可溶化状態とすることを特徴とするセラミド分散液の製造方法。A predetermined amount of ceramide, alcohol and water are mixed, and then B1 fatty acid having 8 to 10 carbon atoms and polyglycerol ester, and B2 fatty acid having 12 to 18 carbon atoms and polyglycerol ester are added and dispersed. A method for producing a ceramide dispersion characterized by homogenization treatment to obtain a solubilized state having an average particle diameter of 150 nm or less. 請求項1〜6のいずれか1項に記載のセラミド分散液を含んでなることを特徴とする飲食品。A food or drink comprising the ceramide dispersion according to any one of claims 1 to 6. 請求項1〜6のいずれか1項に記載のセラミド分散液を含んでなることを特徴とする化粧料。A cosmetic comprising the ceramide dispersion according to any one of claims 1 to 6.
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