JP4904751B2 - 生体内dha合成促進剤 - Google Patents
生体内dha合成促進剤 Download PDFInfo
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- JP4904751B2 JP4904751B2 JP2005266467A JP2005266467A JP4904751B2 JP 4904751 B2 JP4904751 B2 JP 4904751B2 JP 2005266467 A JP2005266467 A JP 2005266467A JP 2005266467 A JP2005266467 A JP 2005266467A JP 4904751 B2 JP4904751 B2 JP 4904751B2
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- Fodder In General (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Epoxy Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines Containing Plant Substances (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
本願発明では、入手が容易でかつ大量・安定・安価なワカメ端物を原料に用いることで、フコキサンチンを多く含む海藻油または純度99%以上のフコキサンチンを得た。なお、フコキサンチン自体の生成方法は、上記の特許文献、非特許文献などに詳細に記載されているので、ここでは説明を省略する。
動物実験1と動物実験2にはKK-Ayマウス(雌;3週齢)を用いた。動物実験3にはICRマウス(雄;5週齢)を用いた。試験餌料はAIN-93G組成にしたがって調製した。飼料中の脂質は動物実験1と2では13.1%にした。また、動物実験3では7.0%にした。表1〜4に、各実験での脂質成分の飼料中の含量を示した。飼料は、調製後直ちに真空パックして給餌まで−20℃下に保存した。飼料脂質の脂肪酸組成は表5〜7に示した。
1週間対照群用の飼料により予備飼育を行い、成長に異常のない固体を各群6匹ずつ体重にばらつきがないように群わけした。滅菌ウッドチップ床敷を入れたプラスチックゲージに群ごとに2匹ずつ入れて飼育した。飼育室の温度は23±1℃、湿度50%、明暗を12時間周期とした。飼料及び水は自由摂取とし、3週間実験試料による飼育を行った。
肝臓から有機溶媒(クロロホルム/メタノール)にて脂質を抽出した。脂質重量を測定後、一部をフタ付き遠沈管(1)に取り、これにベンゼン1mlと7%BF3-メタノール溶液3mlを加えた。窒素置換してフタをした後、ブロックヒーターで90℃、15分間加熱した。放冷後、蒸留水2mlとヘキサン2mlを加え激しく振とうした。下層(ヘキサン層)を別のフタ付遠沈管(2)に取り、上層(水層)にヘキサン2mlを再び加え、激しく振とうした。下層をフタ付遠沈管(2)に移し、3回洗浄を行った。その後、無水硫酸ナトリウムで脱水し、得られたメチルエステルをケイ酸カラムクロマトグラムで精製し、脂肪酸メチルエステルを得た。なお、ケイ酸カラムクロマトグラムは、カラムの先に脱脂綿を詰め、ヘキサン中に懸濁させたケイ酸(Silica Gel 60)5gをカラムへ流し込むことにより調製した。展開溶媒には、ヘキサン(30ml)、5%ジエチルエーテル‐ヘキサン溶液(100ml)を用い、5%ジエチルエーテル‐ヘキサン溶液画分を分取してエバポレーターで濃縮した。
得られた脂肪酸メチルエステルを約2%(w/v)のヘキサン溶液とし、この溶液1μlをガスクロマトグラフへ注入し、以下の条件で分析を行った。
装置:島津製作所製 GC-14B型 ガスクロマトグラフ
カラム:Fused Sillica Capillary Column Omegawax 320
(30m×0.32mmi.d.)
[Supelco Inc., Bellefonte,PA,USA]
カラム温度:180〜240℃(2℃/min)
注入口温度:250℃
検出器温度:240℃
マウスにコントロール(大豆油13.1%)およびワカメ脂質(0.5%と1.9%)を投与した場合、摂餌量や肝臓脂質含量などに有意差は認められなかった。一方、肝臓の脂肪酸含量はワカメ脂質投与でコントロールに比べてDHA(22:6n-3)含量が最も大きく変動した(表8)。ワカメ脂質1.9%ではコントロールの2倍以上となった。
ワカメ脂質には糖脂質とフコキサンチンが主要な構成成分として含まれていた(表2)。そこで、フコキサンチンと糖脂質をワカメ脂質からクロマトグラフィーで分別し、表3に示した組成の脂質をマウスに投与した。その結果、ワカメ糖脂質にはDHAの前駆体となる18:3n-3、18:4n-3、20:5n-3が他の群よりも多く含まれていたために(合計で20.8%;表6)、これらの脂肪酸の生体内での代謝産物としてのDHAがコントロールよりも多く検出された(表9)。
さらに、ICRマウスに、ラードと大豆油を基本の飼料油とし、ラードの一部をワカメ脂質、フコキサンチン、ワカメ糖脂質に置換した場合、フコキサンチン投与により肝臓中でのDHAの含量がコントロールの2倍以上となった(表10)。
Claims (5)
- フコキサンチンを生体内のDHA合成の促進剤としたことを特徴とする生体内DHA合成促進剤。
- フコキサンチンを含有する海藻油を生体内のDHA合成の促進剤としたことを特徴とする生体内DHA合成促進剤。
- フコキサンチン又はフコキサンチンを含有する海藻油を食品素材、医薬品又は飼料に添加して成ることを特徴とする生体内DHA合成促進剤。
- 前記食品素材は、植物油であることを特徴とする請求項3に記載の生体内DHA合成促進剤。
- 前記フコキサンチンは褐藻又は珪藻から抽出したことを特徴とする請求項1又は3に記載の生体内DHA合成促進剤。
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| JP2005266467A JP4904751B2 (ja) | 2005-09-14 | 2005-09-14 | 生体内dha合成促進剤 |
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| JP2005266467A JP4904751B2 (ja) | 2005-09-14 | 2005-09-14 | 生体内dha合成促進剤 |
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| Publication Number | Publication Date |
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| JP2007077067A JP2007077067A (ja) | 2007-03-29 |
| JP4904751B2 true JP4904751B2 (ja) | 2012-03-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008291004A (ja) * | 2007-04-26 | 2008-12-04 | Oriza Yuka Kk | 美肌用組成物 |
| WO2009048249A2 (en) * | 2007-10-10 | 2009-04-16 | Amicogen, Inc. | Composition for preventing or treating lipid metabolic disorders comprising fucoxanthin or marine plant extract containing same |
| US9480672B2 (en) * | 2013-07-10 | 2016-11-01 | Lion Corporation | Internal composition |
| WO2015052171A1 (en) * | 2013-10-07 | 2015-04-16 | Saele Invest & Consulting As | Edible lipid composition comprising stearidonic acid and olive oil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10158156A (ja) * | 1996-03-22 | 1998-06-16 | Nippon Suisan Kaisha Ltd | 抗腫瘍剤 |
| JP2001335480A (ja) * | 2000-05-24 | 2001-12-04 | Riken Vitamin Co Ltd | 神経細胞保護剤 |
| JP4109511B2 (ja) * | 2002-08-21 | 2008-07-02 | 株式会社小倉屋山本 | フコキサンチンの精製方法 |
| CA2517661A1 (en) * | 2003-06-09 | 2004-12-16 | Suntory Limited | Novel deodorizing method for oily odors and composition thereof |
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