JP2000325040A - Learning/memory capacity-improving food - Google Patents

Learning/memory capacity-improving food

Info

Publication number
JP2000325040A
JP2000325040A JP11136397A JP13639799A JP2000325040A JP 2000325040 A JP2000325040 A JP 2000325040A JP 11136397 A JP11136397 A JP 11136397A JP 13639799 A JP13639799 A JP 13639799A JP 2000325040 A JP2000325040 A JP 2000325040A
Authority
JP
Japan
Prior art keywords
tocopherol
lecithin
learning
dha
ginkgo biloba
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11136397A
Other languages
Japanese (ja)
Inventor
Keiichi Hiramoto
恵一 平本
Tsutomu Sakaida
勉 坂井田
Shinichi Suzaki
真一 洲嵜
Yutaka Iwata
豊 岩田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nonogawa Shoji Ltd
Original Assignee
Nonogawa Shoji Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nonogawa Shoji Ltd filed Critical Nonogawa Shoji Ltd
Priority to JP11136397A priority Critical patent/JP2000325040A/en
Publication of JP2000325040A publication Critical patent/JP2000325040A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To obtain the subject food containing docosahexaenoic acid, ginkgo leaves extract, lecithin and tocopherol. SOLUTION: This learning/memory capacity-improving food contains docosahexaenoic acid, ginkgo leaves extract, lecithin and tocopherol. The food is more effective than those containing DHA and ginkgo leaves extract and those containing lecithin and tocopherol, therefore being excellent in learning/ memory capacity-improving effect.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明はドコサヘキサエン酸
(以下「DHA」という)、イチョウ葉エキス、レシチン
およびトコフェロールを含有することを特徴とする学習
・記憶能力改善食品に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food having improved learning and memory ability, comprising docosahexaenoic acid (hereinafter referred to as "DHA"), ginkgo biloba extract, lecithin and tocopherol.

【0002】[0002]

【従来の技術】近年、DHAの学習記憶能力の向上およ
び老人性痴呆症の予防回復機能が注目されている。しか
し、老人性痴呆症等の脳機能障害については現在のとこ
ろ有効に治療できる薬剤はほとんど無く、治療方法の確
立が望まれている。また、イチョウ葉エキスには、血管
を拡張して血流をよくすることで、脳の血液循環を改善
する作用があり、記憶力の減退、老人性痴呆症の改善に
効果がある。ヨーロッパでは、脳や末梢循環改善剤とし
てイチョウ葉エキスを主成分とした医薬品が許可を受け
ている。従来、これらのDHAやイチョウ葉エキスは単
独で用いられていた。さらには、これらの二者を組み合
わせることにより、相乗効果を得ようとする試みがなさ
れている(特開平6−340539)。
2. Description of the Related Art In recent years, attention has been paid to the improvement of the learning and memory ability of DHA and the function of preventing and recovering senile dementia. However, at present, there are few drugs that can effectively treat cerebral dysfunction such as senile dementia, and establishment of a treatment method is desired. Ginkgo biloba extract has the effect of improving blood flow by expanding blood vessels to improve cerebral blood circulation, and is effective in reducing memory and improving senile dementia. In Europe, a medicine containing ginkgo biloba extract as a main component has been approved as a brain and peripheral circulation improving agent. Conventionally, these DHA and ginkgo biloba leaf extract have been used alone. Furthermore, an attempt has been made to obtain a synergistic effect by combining these two (Japanese Patent Application Laid-Open No. Hei 6-340539).

【0003】[0003]

【発明が解決しようとする課題】DHAとイチョウ葉エ
キスを単独に用いたものに比べ、DHAおよびイチョウ
葉エキスを併用したものには、相乗効果が認められる
が、それだけでは効果は充分ではない。この様な事情に
鑑み、本発明者らは、さらに優れた学習・記憶能力改善
食品を得るべく検討した結果、DHA、イチョウ葉エキ
ス、レシチンおよびトコフェロールを組み合わせること
により、さらにはこれらの成分を特定の比率で組み合わ
せることにより、特に顕著な効果を発揮することを見い
出し、この知見に基づいて本発明を完成するに至った。
The synergistic effect of the combination of DHA and Ginkgo biloba extract is recognized as compared with the case of using DHA and Ginkgo biloba extract alone, but the effect alone is not sufficient. In view of such circumstances, the present inventors have studied to obtain a food with improved learning and memory ability, and as a result, by combining DHA, ginkgo biloba extract, lecithin and tocopherol, furthermore, these components were identified. It has been found that a particularly remarkable effect can be exerted by combining them at the ratio described above, and based on this finding, the present invention has been completed.

【0004】[0004]

【課題を解決するための手段】即ち、本発明は DH
A、イチョウ葉エキス、レシチンおよびトコフェロール
を含有することを特徴とする学習・記憶能力改善食品で
ある。
That is, the present invention provides a DH
A, G / Ginkgo leaf extract, lecithin and tocopherol-containing food with improved learning and memory ability.

【0005】DHAはドコサヘキサエン酸と言われ、魚
類、甲殻類、海産動物等に多く含まれている。中でもD
HA資源としては、イワシ、サバ、カツオ、マグロ等の
魚油を脱酸、脱色後濃縮し、脱臭して得られるDHA含
有魚油を用いることができる。また、DHA含有魚油を
更に精製することにより、DHA高含有の魚油を得るこ
とができるし、DHAそのもの(純物質)を用いても良
い。
[0005] DHA is called docosahexaenoic acid, and is contained abundantly in fish, crustaceans, marine animals and the like. Above all, D
As the HA resources, DHA-containing fish oil obtained by deacidifying, decolorizing, concentrating and deodorizing fish oils such as sardines, mackerel, skipjack, and tuna can be used. Further, by further refining the DHA-containing fish oil, a DHA-rich fish oil can be obtained, or DHA itself (pure substance) may be used.

【0006】本発明に用いられるイチョウ葉エキスのイ
チョウとは、イチョウ科に属する一科一属一種の植物で
あり、健康食品や民間薬等に使用されている。すなわ
ち、本発明に用いるイチョウ葉エキスとは、上記イチョ
ウの葉またはその溶媒抽出物であることを意味する。抽
出に用いる溶媒としては、本発明の学習・記憶能力改善
効果を示す成分が抽出される溶媒であれば何でも良い
が、例えば、水、低級アルコール類(メタノール、エタ
ノール、プロパノール、ブタノール等)、ケトン類(ア
セトン、メチルエチルケトン等)、アセトニトリル、エ
ステル類(酢酸エチル、酢酸ブチル等)、炭化水素類
(ヘキサン、ヘプタン、流動パラフィン等)、エーテル
類(エチルエーテル、テトラヒドロフラン、プロピルエ
ーテル等)、クロロホルム、ジクロロメタン等が挙げら
れる。好ましくは、水、上記低級アルコールおよびケト
ン等の極性溶媒が良い。これらの溶媒は1種でも2種以
上を混合して用いても良い。抽出は常温でも加熱でも良
く、得られたエキスは必要に応じて更に精製、濃縮、濾
過等を行うことができる。また、イチョウ葉エキスは抽
出した溶液のままでも良く、凍結乾燥、噴霧乾燥、濃縮
乾燥等の処理を行い、乾燥物としても良く、使用形態は
特に問わない。本発明の学習・記憶能力改善食品は、学
習・記憶能力改善効果を示す成分が含まれていることに
特徴があり、イチョウの葉の細断物、破砕物、粉砕物を
含有させたものであっても良いが、溶媒で抽出した抽出
物を含有させることがより好ましい。さらには、溶媒抽
出物をクロマトグラフィー等により精製を行っても良
く、特にフラボン配糖体を高濃度に含有させることが好
ましい。
Ginkgo biloba, a ginkgo biloba extract used in the present invention, is a plant belonging to the family Ginkgo which belongs to the family Ginkgo and is used in health foods, folk medicine and the like. That is, the ginkgo biloba extract used in the present invention means the above ginkgo biloba leaves or a solvent extract thereof. As the solvent used for the extraction, any solvent can be used as long as it is a solvent from which the component exhibiting the learning / memory ability improving effect of the present invention can be extracted. For example, water, lower alcohols (methanol, ethanol, propanol, butanol, etc.), ketone (Acetone, methyl ethyl ketone, etc.), acetonitrile, esters (ethyl acetate, butyl acetate, etc.), hydrocarbons (hexane, heptane, liquid paraffin, etc.), ethers (ethyl ether, tetrahydrofuran, propyl ether, etc.), chloroform, dichloromethane And the like. Preferably, polar solvents such as water, the above lower alcohols and ketones are used. These solvents may be used alone or in combination of two or more. The extraction may be carried out at normal temperature or by heating, and the obtained extract can be further purified, concentrated, filtered, etc., if necessary. The ginkgo biloba extract may be in the form of an extracted solution, or may be subjected to treatments such as freeze-drying, spray-drying, and concentration-drying to obtain a dried product, and the form of use is not particularly limited. The food for improving learning and memory ability of the present invention is characterized in that it contains a component exhibiting the effect of improving learning and memory ability, and contains shredded, crushed, and crushed ginkgo leaves. Although it may be present, it is more preferable to contain an extract extracted with a solvent. Furthermore, the solvent extract may be purified by chromatography or the like, and it is particularly preferable to contain the flavone glycoside at a high concentration.

【0007】レシチンは、ホスファチジルコリンそのも
の、またはホスファチジルコリンを含有する大豆レシチ
ン、卵黄レシチン、菜種レシチンおよびこれらを精製し
た精製レシチンを用いることができる。精製レシチンに
は、粉末(高純度)レシチン、分画レシチン等が挙げら
れる。
As lecithin, phosphatidylcholine itself, soybean lecithin containing phosphatidylcholine, egg yolk lecithin, rapeseed lecithin and purified lecithin obtained by purifying these can be used. Purified lecithin includes powdered (high purity) lecithin, fractionated lecithin and the like.

【0008】トコフェロールは、天然のビタミンEであ
り、トコフェロールあるいはトコフェロールを含む植物
油からトコフェロールを高濃度に濃縮したものを用いる
ことができる。トコフェロールには、α、β、γおよび
σのいずれの同族体も含む。
[0008] Tocopherol is a natural vitamin E, and it is possible to use tocopherol or a highly concentrated tocopherol from vegetable oil containing tocopherol. Tocopherol includes any homologues of α, β, γ and σ.

【0009】上記のDHA、イチョウ葉エキス、レシチ
ンおよびトコフェロールは、いずれも市販されているも
のを用いても良く、必要によっては市販物を再精製して
用いても良い。
As the above-mentioned DHA, ginkgo biloba extract, lecithin and tocopherol, any commercially available one may be used, and if necessary, a commercially available product may be repurified and used.

【0010】本発明に係る学習・記憶能力改善食品の形
態は特に問わないが、例として錠剤、顆粒剤、カプセル
剤、散剤、ガム、チョコレート、飴、麺、パン、ケー
キ、ビスケット、調理油、ドレッシング、缶詰、レトル
ト食品、畜肉食品、水産練食品、マーガリン、バター、
マヨネーズ、飲料等の通常の食品形態を採用することが
できる。なかでもカプセル剤、錠剤、顆粒剤、調理油、
ドレッシング等が好ましい。
The form of the food for improving learning and memory ability according to the present invention is not particularly limited. Examples thereof include tablets, granules, capsules, powders, gums, chocolate, candy, noodles, bread, cakes, biscuits, cooking oil, Dressing, canned food, retort food, livestock meat food, seafood paste, margarine, butter,
Normal food forms such as mayonnaise and beverages can be employed. Among them, capsules, tablets, granules, cooking oil,
Dressing and the like are preferred.

【0011】また、当該食品を製造する場合は、必要に
応じてゼラチン、メチルセルロースおよびシェラック等
の皮膜剤、グリセリン、脂肪酸エステルおよびショ糖脂
肪酸エステル等の活性剤、乳糖、デンプンおよびデキス
トリン等の賦形剤、油脂、ミツロウおよび米糖ロウ等の
ロウ分、ビタミン、ミネラルおよびアミノ酸等の栄養強
化成分等を配合することができる。
In the case of producing the food, if necessary, gelatin, methylcellulose, shellac and other film-forming agents, glycerin, fatty acid esters and sucrose fatty acid esters and other active agents, lactose, starch and dextrin, etc. Ingredients, fats and oils, wax components such as beeswax and rice sugar wax, and nutrient-enhancing components such as vitamins, minerals and amino acids can be blended.

【0012】本発明に係るDHA、イチョウ葉エキス、
レシチンおよびトコフェロールは任意の割合で配合でき
るが、DHA量/イチョウ葉エキス量=1〜6、トコフ
ェロール量/レシチン中のホスファチジルコリン量 =
1〜50、(トコフェロール+レシチン中のホスファチ
ジルコリン)量/(DHA+イチョウ葉エキス)量=
0.022〜0.24の組成で配合するのがより好まし
い。
[0012] DHA, ginkgo biloba extract according to the present invention,
Lecithin and tocopherol can be blended in any ratio, but the amount of DHA / ginkgo biloba extract = 1-6, the amount of tocopherol / the amount of phosphatidylcholine in lecithin =
1 to 50, (tocopherol + phosphatidylcholine in lecithin) / (DHA + ginkgo biloba extract) =
It is more preferable to mix them in a composition of 0.022 to 0.24.

【0013】[0013]

【実施例】次に本発明を詳細に説明するため実施例を挙
げるが、本発明はこれに限定されるものではない。実施
例に示す配合量の部とは重量部を示す。
EXAMPLES Next, the present invention will be described in detail with reference to Examples, but the present invention is not limited thereto. The parts of the amounts shown in the examples are parts by weight.

【0014】 実施例1 ゼラチンカプセル1 処方 配合量 1.DHA含有魚油 (DHA40%) 60.0部 2.イチョウ葉エキス 15.0 3.大豆レシチン(ホスファチジルコリン25%) 2.0 4.トコフェロール含有植物油抽出物(トコフェロール85%) 4.0 5.ミツロウ 14.0 6.グリセリン脂肪酸エステル 5.0 [ 製法 ]上記成分を攪拌混合して均一とし、ゼラチンで
被覆し、カプセル内容物が360mgのソフトカプセル
を得た。
Example 1 Gelatin Capsule 1 Formulation Formulation Amount 1. DHA-containing fish oil (DHA 40%) 60.0 parts Ginkgo biloba extract 15.0 3. 3. soy lecithin (phosphatidylcholine 25%) 2.0 4. Tocopherol-containing vegetable oil extract (tocopherol 85%) 4.0 Beeswax 14.0 6. Glycerin fatty acid ester 5.0 [Preparation method] The above components were stirred and mixed to make uniform, and coated with gelatin to obtain soft capsules having a capsule content of 360 mg.

【0015】比較例1 ゼラチンカプセルA(レシチン
およびトコフェロール未配合のゼラチンカプセル) 実施例1において、大豆レシチンおよびトコフェロール
含有植物油抽出物を大豆油に置き換えたものをゼラチン
カプセルAとした。
Comparative Example 1 Gelatin Capsule A (Gelatin Capsule without Lecithin and Tocopherol) A gelatin capsule A was prepared by replacing the soybean lecithin and tocopherol-containing vegetable oil extract with soybean oil in Example 1.

【0016】 実施例2 ゼラチンカプセル2 処方 配合量 1.DHA含有魚油 (DHA70%) 42.0部 2.イチョウ葉エキス 5.0 3.分画レシチン(ホスファチジルコリン70%) 1.4 4.トコフェロール 5.0 5.大豆油 27.6 6.ミツロウ 14.0 7.グリセリン脂肪酸エステル 5.0 [ 製法 ]上記成分を攪拌混合して均一とし、ゼラチンで
被覆し、カプセル内容物が360mgのソフトカプセル
を得た。
Example 2 Gelatin Capsule 2 Formulation Formulation Amount 1. DHA-containing fish oil (DHA 70%) 42.0 parts Ginkgo biloba extract 5.0 3. Fractionated lecithin (phosphatidylcholine 70%) 1.4 4. Tocopherol 5.0 5. Soybean oil 27.6 6. Beeswax 14.0 7. Glycerin fatty acid ester 5.0 [Preparation method] The above components were stirred and mixed to make uniform, and coated with gelatin to obtain soft capsules having a capsule content of 360 mg.

【0017】比較例2 ゼラチンカプセルB(DHAお
よびイチョウ葉エキス未配合のゼラチンカプセル) 実施例2において、DHA含有魚油およびイチョウ葉エ
キスを大豆油に置き換えたものをゼラチンカプセルBと
した。
Comparative Example 2 Gelatin Capsule B (Gelatin Capsule without DHA and Ginkgo Leaf Extract) A gelatin capsule B was prepared by replacing the DHA-containing fish oil and ginkgo leaf extract with soybean oil in Example 2.

【0018】 実施例3 ゼラチンカプセル3 処方 配合量 1.DHA 20.0部 2.イチョウ葉エキス 10.0 3.ホスファチジルコリン 0.1 4.トコフェロール含有植物油抽出物(トコフェロール20%) 5.0 5.大豆油 45.9 6.ミツロウ 14.0 7.グリセリン脂肪酸エステル 5.0 [ 製法 ]上記成分を攪拌混合して均一とし、ゼラチンで
被覆し、カプセル内容物が360mgのソフトカプセル
を得た。
Example 3 Gelatin Capsule 3 Formulation Formulation Amount DHA 20.0 parts2. Ginkgo biloba extract 10.0 3. Phosphatidylcholine 0.14. 4. Tocopherol-containing vegetable oil extract (tocopherol 20%) 5.0 Soybean oil 45.9 6. Beeswax 14.0 7. Glycerin fatty acid ester 5.0 [Preparation method] The above components were stirred and mixed to make uniform, and coated with gelatin to obtain soft capsules having a capsule content of 360 mg.

【0019】 実施例4 顆粒剤 処方 配合量 1.DHA含有魚油(DHA70%) 30.0部 2.卵黄レシチン(フォスファチジルコリン 50%) 1.0 3.トコフェロール含有植物油抽出物(トコフェロール85%) 2.0 4.多孔質酵素変性デキストリン 33.0 5.イチョウ葉エキス 10.0 6.乳糖 20.0 7.プルラン 4.0 [ 製法 ]成分1〜3を成分4に加え、攪拌混合して粉体
を得る。次いで成分5、6を加え、流動層造粒機で成分
7を噴霧しつつ乾燥して顆粒剤を得る。
Example 4 Granules Formulation Formulation Amount 1. DHA-containing fish oil (DHA 70%) 30.0 parts 2. Yolk lecithin (phosphatidylcholine 50%) 1.0 3. Tocopherol-containing vegetable oil extract (tocopherol 85%) 2.0 4. Porous enzyme-modified dextrin 33.0 Ginkgo biloba extract 10.0 6. Lactose 20.0 7. Pullulan 4.0 [Production Method] Add components 1 to 3 to component 4 and mix by stirring to obtain a powder. Next, components 5 and 6 are added, and the mixture is dried while spraying the component 7 with a fluidized bed granulator to obtain granules.

【0020】 実施例5 ドレッシング 処方 配合量 1.DHA含有魚油(DHA20%) 50.0部 2.オリーブ油 23.5 3.トコフェロール含有植物油抽出物(トコフェロール20%) 5.0 4.大豆レシチン(フォスファチジルコリン 20%) 0.5 5.酢 10.0 6.イチョウ葉エキス 5.0 7.食塩 1.0 8.マスタード 5.0 [ 製法 ]成分1〜4に成分5〜8を加え、攪拌しながら
ろ紙に充填してドレッシングを得る。
Example 5 Dressing Formulation Amount 1. 1. DHA-containing fish oil (DHA 20%) 50.0 parts Olive oil 23.5 3. 3. Tocopherol-containing vegetable oil extract (tocopherol 20%) 5.0 Soy lecithin (phosphatidylcholine 20%) 0.55. Vinegar 10.0 6. Ginkgo biloba extract 5.0 7. Salt 1.08. Mustard 5.0 [Preparation] Add components 5 to 8 to components 1 to 4 and fill the mixture with filter paper while stirring to obtain a dressing.

【0021】 実施例6 調理油 処方 配合量 1.DHA含有魚油(DHA40%) 37.5 2.ラード 30.0 3.ゴマ油 11.5 4.トコフェロール 5.0 5.分画レシチン(フォスファチジルコリン 70%) 1.0 6.イチョウ葉エキス 15.0 [ 製法 ]成分1〜5を加温して均一にした後、成分6を
加えて攪拌混合し、分包冷却して調理油を得る。
Example 6 Cooking Oil Formulation Amount 1. 1. DHA-containing fish oil (DHA 40%) 37.5 2. Lard 30.0 3. Sesame oil 11.5 4. Tocopherol 5.0 5. Fractionated lecithin (phosphatidylcholine 70%) 1.0 6. Ginkgo biloba extract 15.0 [Preparation method] After heating components 1 to 5 to make them uniform, add component 6, stir and mix, and pack and cool to obtain cooking oil.

【0022】[0022]

【発明の効果】本発明は、学習・記憶能力改善に優れた
食品を提供し得る。以下に実験例にて、本発明の効果を
説明する。
According to the present invention, it is possible to provide a food excellent in improving learning and memory ability. Hereinafter, the effects of the present invention will be described using experimental examples.

【0023】実験例1 方法:学習・記憶改善効果の試験は論文(Morris.RGB:
Learn Motiv.1981:12:238-260)に従った。すなわ
ち、 DHA+イチョウ葉エキス+ レシチン+トコフェ
ロール(実施例1)、イチョウ葉エキス+DHA(比較
例1)、レシチン+トコフェロール(比較例2)を含有
しているカプセルのうち、カプセルを取り除いた内容物
のみを8ヶ月齢マウスに10日間、1日当り1mg
(0.5%カルボキシメチルセルロースに懸濁)経口投
与させた。投与終了日にマウスを水迷路で泳がせ、プラ
ットホーム(脱出口)の位置を学習させた後、24時間
後にもう一度泳がせて、脱出口へ到達する時間を測定す
る。学習・記憶能力が改善されたマウスは、24時間後
の脱出口への到達が早くなる。
EXPERIMENTAL EXAMPLE 1 Method: The test of the effect of improving learning and memory was conducted using a paper (Morris. RGB:
Learn Motiv. 1981: 12: 238-260). That is, of the capsules containing DHA + Ginkgo biloba extract + Lecithin + Tocopherol (Example 1), Ginkgo biloba extract + DHA (Comparative Example 1), and Lecithin + Tocopherol (Comparative Example 2), only the contents from which the capsules have been removed To an 8-month-old mouse for 10 days at 1 mg / day
(Suspended in 0.5% carboxymethylcellulose) orally. On the day of administration, the mice are allowed to swim in a water maze, and after learning the position of the platform (exit), they are allowed to swim again 24 hours later, and the time to reach the exit is measured. Mice with improved learning and memory ability reach the exit 24 hours later.

【0024】結果:比較例1、2において学習・記憶能
力の改善が認められた。さらに、実施例1においては比
較例1と2より高い改善効果が得られ、 DHA+イチ
ョウ葉エキス+ レシチン+トコフェロールの相乗効果
が認められた。
Results: In Comparative Examples 1 and 2, the learning and memory ability was improved. Furthermore, in Example 1, an improvement effect higher than Comparative Examples 1 and 2 was obtained, and a synergistic effect of DHA + Ginkgo biloba extract + Lecithin + Tocopherol was recognized.

【0025】[0025]

【図1】FIG.

【0026】実験例2 方法:実施例1と比較例1、2のカプセルを1日当り3
カプセル(1080mg)になるように成人10名10
日間食べさせる。次に、決められた時間内に3桁/2桁
の割り算の計算を行い、試験前後での返答数および正解
率を調べることにより、思考力の改善効果の試験を行っ
た。
Experimental Example 2 Method: The capsules of Example 1 and Comparative Examples 1 and 2 were added at a rate of 3 capsules per day.
10 adults 10 capsules (1080 mg)
Feed for days. Next, a three-digit / two-digit division was calculated within a determined time, and the number of replies and the correct answer rate before and after the test were examined to test the effect of improving the thinking ability.

【0027】結果:比較例1、2において返答数、正解
数共に改善効果を示した。また実施例1では返答数、正
解数共に比較例1、2より高い値を示し、DHA+イチ
ョウ葉エキス+レシチン+トコフェロールを併用するこ
とにより効果の向上が見られた。
Results: In Comparative Examples 1 and 2, both the number of replies and the number of correct answers showed an improvement effect. In Example 1, both the number of responses and the number of correct answers were higher than those of Comparative Examples 1 and 2, and the effect was improved by using DHA + Ginkgo biloba extract + Lecithin + Tocopherol in combination.

【0028】[0028]

【表1】 [Table 1]

【0029】実施例2、3についても、実験例1と同様
に試験を行ったところ、実験例1と同様の学習・記憶能
力改善効果が認められた。また、実施例4、5、6につ
いても実験例2と同様に試験を行ったところ、実施例1
と同様の学習・記憶能力改善効果が認められた。
Tests were performed on Examples 2 and 3 in the same manner as in Experimental Example 1. As a result, the same effect of improving learning and memory ability as in Experimental Example 1 was observed. In addition, tests were performed on Examples 4, 5, and 6 in the same manner as in Experimental Example 2.
The same effect of improving learning and memory ability was observed.

【0030】[0030]

【図面の簡単な説明】[Brief description of the drawings]

【図1】 図1は、本発明であるDHA、イチョウ葉エ
キス、レシチンおよびトコフェロールを併用することに
よる、マウスを用いた学習・記憶能力改善結果を示す図
である。
FIG. 1 is a diagram showing the results of improving learning and memory ability using mice by using DHA, ginkgo biloba extract, lecithin and tocopherol according to the present invention in combination.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) A61K 31/685 A61K 31/685 35/78 35/78 W (72)発明者 岩田 豊 名古屋市西区鳥見町2−7 日本メナード 化粧品株式会社総合研究所内 Fターム(参考) 4B018 LB01 LB08 LB09 LE02 MD11 MD26 MD46 MD48 ME14 MF01 4B035 LC06 LE01 LE03 LG07 LG37 LP22 4C086 AA01 AA02 DA14 DA34 EA11 GA17 MA03 MA04 MA09 NA05 ZA15 ZC75 4C088 AB02 AC05 BA08 BA14 CA03 MA52 NA05 ZA15 ZC75 4C206 AA01 AA02 DA05 KA04 MA03 MA04 MA72 NA05 ZA15 ZC75──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) A61K 31/685 A61K 31/685 35/78 35/78 W (72) Inventor Yutaka Iwata Tomicho, Nishi-ku, Nagoya 2-7 Japan Menard Cosmetics Co., Ltd. F-term (reference) 4B018 LB01 LB08 LB09 LE02 MD11 MD26 MD46 MD48 ME14 MF01 4B035 LC06 LE01 LE03 LG07 LG37 LP22 4C086 AA01 AA02 DA14 DA34 EA11 GA17 MA03 MA04 MA09 NA05 ZA15 ZC75 AC05 BA08 BA14 CA03 MA52 NA05 ZA15 ZC75 4C206 AA01 AA02 DA05 KA04 MA03 MA04 MA72 NA05 ZA15 ZC75

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 ドコサヘキサエン酸、イチョウ葉エキ
ス、レシチンおよびトコフェロールを含有する学習・記
憶能力改善食品。
1. A learning and memory improving food containing docosahexaenoic acid, ginkgo biloba extract, lecithin and tocopherol.
【請求項2】 上記成分の重量組成比が ドコサヘキサエン酸量/イチョウ葉エキス量=1〜
6 トコフェロール量/レシチン中のホスファチジルコ
リン量=1〜50 (トコフェロール+レシチン中のホスファチジルコ
リン)量/(ドコサヘキサエン酸+イチョウ葉エキス)
量=0.022〜0.24 の〜のすべての要件を満たす、請求項1記載の学習
・記憶能力改善食品。
2. The weight composition ratio of the above components is docosahexaenoic acid content / ginkgo leaf extract content = 1 to 1.
6 Amount of tocopherol / amount of phosphatidylcholine in lecithin = 1-50 (tocopherol + phosphatidylcholine in lecithin) / (docosahexaenoic acid + ginkgo biloba extract)
The learning / memory ability improving food according to claim 1, which satisfies all the requirements of the amount of 0.022 to 0.24.
【請求項3】 上記イチョウ葉エキスがフラボン配糖体
であることを特徴とする、請求項1または2記載の学習
・記憶能力改善食品。
3. The learning / memory improving food according to claim 1, wherein the ginkgo biloba leaf extract is a flavone glycoside.
JP11136397A 1999-05-17 1999-05-17 Learning/memory capacity-improving food Pending JP2000325040A (en)

Priority Applications (1)

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Family

ID=15174217

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Country Status (1)

Country Link
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JP2011079786A (en) * 2009-10-08 2011-04-21 Sankyo:Kk Soft capsule containing polyphenols, lecithin and vitamin e that prevents or inhibits disintegration retard
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JP2015224193A (en) * 2014-05-26 2015-12-14 キリン株式会社 Medicines, foods, and compositions which enhance memory learning function
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JP2003261456A (en) * 2002-03-08 2003-09-16 Howaizu:Kk Brain aging-preventing agent
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AU2004295582B2 (en) * 2003-12-02 2010-05-20 Suntory Holdings Limited Fat composition containing phospholipid and long-chain polyunsaturated fatty acid-supplying compound and food using the same
WO2005054415A1 (en) * 2003-12-02 2005-06-16 Suntory Limited Fat composition containing phospholipid and long-chain polyunsaturated fatty acid-supplying compound and food using the same
KR101144834B1 (en) 2003-12-02 2012-05-11 산토리 홀딩스 가부시키가이샤 Fat composition containing phospholipid and long-chain polyunsaturated fatty acid supplying compound and food using the same
JP2011079786A (en) * 2009-10-08 2011-04-21 Sankyo:Kk Soft capsule containing polyphenols, lecithin and vitamin e that prevents or inhibits disintegration retard
JP2013526865A (en) * 2010-05-13 2013-06-27 ニトロメガ コーポレーション Nitro fatty acids, neuroprotection and / or suppression of cognitive decline
JP2013203693A (en) * 2012-03-28 2013-10-07 Kobayashi Pharmaceutical Co Ltd Composition including ginkgolide and seafood oil
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