JP5209355B2 - Sweet pea extract - Google Patents
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Description
スイートピー抽出物に関する。 It relates to sweet pea extract.
本発明者等は、皮膚に及ぼす傷害に対して防御効果を有する薬剤を検討してきた。そして、マルビジン−3,5−ジグルコシドが、紫外線、あるいは紫外線により発生する活性酸素を介した細胞死に対して、優れた細胞死抑制効果を有することを見出した(特許文献1:特開2004−359603号公報)。
また、本発明者等は、スイートピー抽出物には細胞増殖促進、エラスターゼ活性阻害、抗老化等の作用効果があることを確認し、これらの作用を発揮する化粧料、細胞増殖促進剤、エラスターゼ活性阻害剤、抗老化剤を提案した(特許文献2:特開2006−282617号公報)。
The inventors of the present invention have studied a drug having a protective effect against injury to the skin. And it was discovered that malvidin-3,5-diglucoside has an excellent cell death inhibitory effect on cell death via ultraviolet rays or active oxygen generated by ultraviolet rays (Patent Document 1: JP-A-2004-359603). Issue gazette).
In addition, the present inventors confirmed that sweet pea extract has effects such as cell growth promotion, elastase activity inhibition, anti-aging, etc., and cosmetics, cell growth promoters, elastase activity that exhibit these actions Inhibitors and anti-aging agents have been proposed (Patent Document 2: JP-A 2006-282617).
スイートピー抽出物の中にマルビジン−3,5−ジグルコシドが含まれることは公知であるが、マルビジン−3,5−ジグルコシドは経時的に不安定であった。本発明の課題はは、マルビジン−3,5−ジグルコシドが安定に維持され、経時安定性の良いスイートピーエキスを提供することである。 It is known that malvidin-3,5-diglucoside is contained in the sweet pea extract, but malvidin-3,5-diglucoside was unstable over time. An object of the present invention is to provide a sweet pea extract in which malvidin-3,5-diglucoside is stably maintained and has good temporal stability.
本発明の主な構成は、次のとおりである。
(1)スイートピーの花を水抽出処理し、エタノール添加し、脱塩処理し、エタノールを除去し、水と1,2−ペンタンジオールを添加処理してナトリウムイオン濃度が550ppm未満であるマルビジン−3,5−ジグルコシドを含有するスイートピー抽出物を製造する方法。
(2)スイートピーの花を水抽出処理し、エタノール添加し、脱塩処理し、エタノールを除去し、水と1,2−ペンタンジオールを添加処理してナトリウムイオン濃度が25ppm未満であるマルビジン−3,5−ジグルコシドを含有するスイートピー抽出物を製造する方法。
The main configuration of the present invention is as follows.
(1) Sweet pea flowers are extracted with water, added with ethanol, desalted, removed with ethanol, added with water and 1,2-pentanediol, and sodium ion concentration is less than 550 ppm. A method for producing a sweet pea extract containing 5-diglucoside.
(2) Sweet pea flowers are extracted with water, added with ethanol, desalted, removed with ethanol, added with water and 1,2-pentanediol to have a sodium ion concentration of less than 25 ppm, malvidin-3 A method for producing a sweet pea extract containing 5-diglucoside.
マルビジン−3,5−ジグルコシドが安定に維持され、経時安定性の良いスイートピーエキスを提供することができる。 Malvidin-3,5-diglucoside can be stably maintained, and a sweet pea extract having good temporal stability can be provided.
スイートピー(Lathyrus odoratus L.)は、マメ科レンリソウ属の植物であり、別名、麝香蓮理草、麝香豌豆とも呼ばれる。主に観賞用に用いられる地中海を原産とする園芸品種である。花の色は白、ピンク、青、紫等があり、芳香がある。 Sweet pea (Lathyrus odoratus L.) is a plant belonging to the genus Leguminosae, and is also known as licorice lotus and scented bean. It is a horticultural variety originating in the Mediterranean Sea that is mainly used for ornamental purposes. The flower color is white, pink, blue, purple, etc., and has a fragrance.
スイートピー抽出物については、その植物の全草又は花、茎、葉、根、種子、のうちの一つ以上を常温又は加温下にて溶剤に浸漬して抽出するか又はソックスレー抽出器等の抽出器具を用いて抽出することにより得られる。さらにクロマトグラフィー等を用いて成分を精製しても良い。マルビジン−3,5−ジグルコシドの含有量が高い抽出物を得るためには、抽出部位は花が好ましい。花びら、がく片、雄しべ、雌しべを含む花全体から抽出しても良く、花びらのみ選択的に採取し、花びらから抽出しても良い。スイートピー抽出物は各種溶剤抽出液、その希釈液、その濃縮液又は抽出液を乾燥や凍結乾燥して得られる乾燥末あるいはペーストの形態で使用することができる。 For sweet pea extract, extract one or more of the whole plant or flower, stem, leaf, root, seed of the plant by immersing it in a solvent at room temperature or under heating, or using a Soxhlet extractor, etc. It is obtained by extracting using an extraction tool. Further, the components may be purified using chromatography or the like. In order to obtain an extract having a high content of malvidin-3,5-diglucoside, the extraction site is preferably a flower. It may be extracted from the whole flower including petals, sepals, stamens and pistils, or only petals may be selectively collected and extracted from petals. The sweet pea extract can be used in the form of a dry powder or paste obtained by drying or freeze-drying various solvent extracts, diluted solutions thereof, concentrated solutions or extracts thereof.
スイートピー抽出物を得るために用いられる抽出溶剤としては、極性溶剤、非極性溶剤のいずれをも使用することができる。例えば、水、アルコール類のメタノール、エタノール、プロパノール、ブタノール等、多価アルコール類のプロピレングリコール、ブチレングリコール等、ケトン類のアセトン、メチルエチルケトン等、エステル類の酢酸メチル、酢酸エチル等、鎖状及び環状エーテル類のテトラヒドロフラン、ジエチルエーテル等、ポリエーテル類のポリエチレングリコール等、ハロゲン化炭化水素類のジクロロメタン、クロロホルム、四塩化炭素等、炭化水素類のヘキサン、シクロヘキサン、石油エーテル等、芳香族炭化水素類のベンゼン、トルエン等、ピリジン類等が挙げられ、これらは2種以上を混合して用いることもできる。
上記の抽出溶剤の中でも、マルビジン−3,5−ジグルコシドの含有量の高い抽出物を得るためには水が好ましい。
As the extraction solvent used for obtaining the sweet pea extract, either a polar solvent or a nonpolar solvent can be used. For example, water, alcohols such as methanol, ethanol, propanol, butanol, etc., polyhydric alcohols such as propylene glycol, butylene glycol, etc., ketones such as acetone and methyl ethyl ketone, esters such as methyl acetate and ethyl acetate, chain and cyclic Ethers such as tetrahydrofuran and diethyl ether, polyethers such as polyethylene glycol, halogenated hydrocarbons such as dichloromethane, chloroform, and carbon tetrachloride, hydrocarbons such as hexane, cyclohexane, and petroleum ether. Benzene, toluene, etc., pyridines, etc. are mentioned, These can also be used in mixture of 2 or more types.
Among the above extraction solvents, water is preferable in order to obtain an extract having a high content of malvidin-3,5-diglucoside.
さらに、本発明のスイートピー抽出物は脱塩処理をすることが必要である。イオン交換カラムまたは吸着カラムを用いて脱塩処理をすることが好ましい。イオン交換カラムとして、例えばアンバーライトを使用することができる。脱塩処理によってナトリウムイオン濃度を550ppm未満にすることが可能であり、脱塩処理によってナトリウムイオン濃度を550ppm未満にしたスイートピー抽出物は、マルビジン−3,5−ジグルコシドの安定性が高い。 Furthermore, the sweet pea extract of the present invention needs to be desalted. It is preferable to carry out a desalting treatment using an ion exchange column or an adsorption column. For example, amberlite can be used as the ion exchange column. It is possible to make sodium ion concentration less than 550 ppm by desalting treatment, and the sweet pea extract in which sodium ion concentration is made less than 550 ppm by desalting treatment has high stability of malvidin-3,5-diglucoside.
スイートピー(Lathyrus odoratus L.)の花1kgに対し約2kgの水を加え、90℃で10分加熱して抽出を行う。10μmのフィルターにてろ過後、エタノールを300g添加して5℃で24時間冷蔵し、生じた不溶物を0.45μmのフィルター除去する。その後、カラムクロマトにて脱塩する。得られた液を加熱濃縮してエタノールを留去し、水と1,2-ヘ゜ンタンシ゛オールを添加して所定の濃度(スイートピー抽出固形分を0.6質量%含有する。全量1kg。)に調整する。更にこの液を低温処理(0〜5℃)で保管し、0.45μmのフィルターにてろ過した。原子吸光法で測定した抽出物中の金属イオン濃度は、ナトリウム0.75ppm、カルシウム1.97ppm、マグネシウム6.37ppm、カリウム6.11ppmであった。 About 2 kg of water is added to 1 kg of flowers of sweet pea (Lathyrus odoratus L.), and extraction is performed by heating at 90 ° C. for 10 minutes. After filtration through a 10 μm filter, 300 g of ethanol is added and refrigerated at 5 ° C. for 24 hours, and the resulting insoluble matter is removed by a 0.45 μm filter. Thereafter, desalting is performed by column chromatography. The resulting liquid is heated and concentrated to distill off ethanol, and water and 1,2-hexane diol are added to adjust to a predetermined concentration (containing 0.6% by weight of sweet pea extract solids, total 1 kg). To do. Further, this solution was stored at a low temperature (0 to 5 ° C.) and filtered through a 0.45 μm filter. The metal ion concentration in the extract measured by the atomic absorption method was 0.75 ppm for sodium, 1.97 ppm for calcium, 6.37 ppm for magnesium, and 6.11 ppm for potassium.
[比較例1]
スイートピー(Lathyrus odoratus L.)の花1kgに対し約2kgの水を加え、90℃で10分加熱して抽出を行う。10μmのフィルターにてろ過後、水と1,2-ヘ゜ンタンシ゛オールを添加して所定の濃度(スイートピー抽出固形分を0.6質量%含有する。全量1kg。)に調整する。原子吸光法で測定した抽出物中の金属イオン濃度は、ナトリウム629ppm、カルシウム40ppm、マグネシウム73ppm、カリウム1911ppmであった。
[Comparative Example 1]
About 2 kg of water is added to 1 kg of flowers of sweet pea (Lathyrus odoratus L.), and extraction is performed by heating at 90 ° C. for 10 minutes. After filtration through a 10 μm filter, water and 1,2-hexane diol are added to adjust to a predetermined concentration (containing 0.6 mass% of solid content of sweet pea extract. Total amount of 1 kg). The metal ion concentration in the extract measured by the atomic absorption method was sodium 629 ppm,
[比較例2]
スイートピー(Lathyrus odoratus L.)の花1kgに対し約2kgの水を加え、90℃で10分加熱して抽出を行う。10μmのフィルターにてろ過後、エタノールを300g添加して5℃で24時間冷蔵し、生じた不溶物を0.45μmのフィルター除去する。得られた液を加熱濃縮してエタノールを留去し、水と1,2-ヘ゜ンタンシ゛オールを添加して所定の濃度(スイートピー抽出固形分を0.6質量%含有する。全量1kg。)に調整する。原子吸光法で測定した抽出物中の金属イオン濃度は、ナトリウム568ppm、カルシウム51ppm、マグネシウム76ppm、カリウム1999ppmであった。
[Comparative Example 2]
About 2 kg of water is added to 1 kg of flowers of sweet pea (Lathyrus odoratus L.), and extraction is performed by heating at 90 ° C. for 10 minutes. After filtration through a 10 μm filter, 300 g of ethanol is added and refrigerated at 5 ° C. for 24 hours, and the resulting insoluble matter is removed by a 0.45 μm filter. The resulting liquid is heated and concentrated to distill off ethanol, and water and 1,2-hexane diol are added to adjust to a predetermined concentration (containing 0.6% by weight of sweet pea extract solids, total 1 kg). To do. The metal ion concentration in the extract measured by the atomic absorption method was sodium 568 ppm, calcium 51 ppm, magnesium 76 ppm, and potassium 1999 ppm.
安定性試験
実施例1の抽出物と比較例1,2の抽出物を25℃で2ヶ月保管し、マルビジン−3,5−ジグルコシドの残存量並びに着色を調べた。
マルビジン−3,5−ジグルコシドの濃度は高速液体クロマトグラフィー法で求めた。
分析装置:島津製作所製HPLCシステム
カラム :L−カラム ODS 4.6mmφ×250mm(化学品検査協会製)
検出器 :UV530nm
溶離液 :(A)2.5%ギ酸+2.5%酢酸水溶液
(B)メタノール
グラジエント条件
(A):(B)=95:5→40:60(20分)
流速 :1.0mL/min
試料注入量:20μL、 試料希釈溶媒:メタノール
マルビジン−3,5−ジグルコシド溶出時間:12.5分
標準試料:塩化マルビジン−3,5−ジグルコシド(EXTRASYNTHESE(France)社製 Malvin chloride)
Stability Test The extract of Example 1 and the extracts of Comparative Examples 1 and 2 were stored at 25 ° C. for 2 months, and the remaining amount and coloration of malvidin-3,5-diglucoside were examined.
The concentration of malvidin-3,5-diglucoside was determined by high performance liquid chromatography.
Analytical apparatus: HPLC system manufactured by Shimadzu Corporation Column: L-column ODS 4.6 mmφ × 250 mm (manufactured by Japan Chemical Inspection Association)
Detector: UV530nm
Eluent: (A) 2.5% formic acid + 2.5% acetic acid aqueous solution
(B) Methanol
Gradient condition
(A) :( B) = 95: 5 → 40: 60 (20 minutes)
Flow rate: 1.0 mL / min
Sample injection volume: 20 μL, Sample diluent solvent: Methanol Malvidin-3,5-diglucoside Elution time: 12.5 minutes Standard sample: Malvidin-3,5-diglucoside (Malvin chloride manufactured by EXTRASYNTHESE (France))
実施例1の抽出物中のマルビジン−3,5−ジグルコシドの残存量は68.8%と高い値を示した。一方、比較例1では12.6%、比較例2では8.4%に残存量が低下した。
スイートピー抽出物の着色を目視評価した結果、実施例1の抽出物は赤紫色であるのに対して、比較例1、2の抽出物は何れも濃褐色に変色していた。
The residual amount of malvidin-3,5-diglucoside in the extract of Example 1 was as high as 68.8%. On the other hand, the residual amount decreased to 12.6% in Comparative Example 1 and to 8.4% in Comparative Example 2.
As a result of visual evaluation of the color of the sweet pea extract, the extract of Example 1 was reddish purple, whereas the extracts of Comparative Examples 1 and 2 were both dark brown.
〔残存量確認試験〕
さらに、スイートピー抽出物中のナトリウムイオンの影響を調べるために、実施例1のスイートピー抽出物にナトリウムイオンを添加し、25℃、40℃保管条件において、スイートピー抽出物中のマルビジン−3,5−グルコシドの残存量を8週間にわたって測定した。
ナトリウムイオンの添加方法は、塩化ナトリウム水溶液を調製し、ナトリウムイオン濃度が10、25、50、100、250、500ppmとなるように、実施例1のスイートピー抽出物に混和した。25℃で8週間保管したときの、マルビジン−3,5−グルコシドの残存量(%)の変化を表1に示す。40℃で8週間保管したときの、マルビジン−3,5−グルコシドの残存量(%)の変化を表2に示す。
[Remaining amount confirmation test]
Furthermore, in order to investigate the influence of sodium ions in the sweet pea extract, sodium ions were added to the sweet pea extract of Example 1, and the malvidin-3,5- in the sweet pea extract was stored at 25 ° C. and 40 ° C. The remaining amount of glucoside was measured over 8 weeks.
As a method for adding sodium ions, an aqueous sodium chloride solution was prepared and mixed with the sweet pea extract of Example 1 so that the sodium ion concentrations were 10, 25, 50, 100, 250, and 500 ppm. Table 1 shows the change in the remaining amount (%) of malvidin-3,5-glucoside when stored at 25 ° C. for 8 weeks. Table 2 shows changes in the remaining amount (%) of malvidin-3,5-glucoside when stored at 40 ° C. for 8 weeks.
ナトリウムイオン濃度が10.75ppm(実施例1の抽出物が含有する0.75ppmに添加濃度10ppmを足したもの。表1及び図1の表記は添加した濃度を示す。)のときには、25℃8週間保管で、実施例1と同様にマルビジン−3,5−グルコシドが約70%(68.09%)残存した。同保管条件で、ナトリウム添加濃度が25ppmでは、マルビジン−3,5−グルコシドの残存量が約35%に低下し、ナトリウム添加濃度が50ppmを超えると残存量は約10%に低下した。 When the sodium ion concentration is 10.75 ppm (the addition of 10 ppm to the 0.75 ppm contained in the extract of Example 1. The notation in Table 1 and FIG. 1 indicates the added concentration). About 70% (68.09%) of malvidin-3,5-glucoside remained in weekly storage as in Example 1. Under the same storage conditions, when the sodium addition concentration was 25 ppm, the residual amount of malvidin-3,5-glucoside was reduced to about 35%, and when the sodium addition concentration exceeded 50 ppm, the residual amount was reduced to about 10%.
ナトリウムイオン濃度が10.75ppm(実施例1の抽出物が含有する0.75ppmに添加濃度10ppmを足したもの。表2及び図2の表記は添加した濃度を示す。)のときには、25℃8週間保管で、ナトリウム添加濃度0ppm(実施例1のスイートピー抽出物)では、マルビジン−3,5−グルコシドが約40%残存したが、ナトリウム添加10ppmでは、約20%、ナトリウム添加25ppmでは、約10%にマルビジン−3,5−グルコシドが残存した。一方、同保管条件で、ナトリウム添加濃度が50ppm以上では、マルビジン−3,5−グルコシドの残存量は0%であった。スイートピーエキス抽出物中のナトリウムイオン濃度は25ppm以下であることが好ましい。 When the sodium ion concentration is 10.75 ppm (the addition of 10 ppm to the 0.75 ppm contained in the extract of Example 1. The notation in Table 2 and FIG. 2 indicates the added concentration). At weekly storage, at a sodium addition concentration of 0 ppm (sweet pea extract of Example 1), about 40% of malvidin-3,5-glucoside remained, but at 10 ppm sodium addition, about 20%, and at 25 ppm sodium addition, about 10%. % Of malvidin-3,5-glucoside remained. On the other hand, under the same storage conditions, the residual amount of malvidin-3,5-glucoside was 0% when the sodium addition concentration was 50 ppm or more. The sodium ion concentration in the sweet pea extract is preferably 25 ppm or less.
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