JPWO2017142079A1 - 腸内菌叢改善剤 - Google Patents
腸内菌叢改善剤 Download PDFInfo
- Publication number
- JPWO2017142079A1 JPWO2017142079A1 JP2018500231A JP2018500231A JPWO2017142079A1 JP WO2017142079 A1 JPWO2017142079 A1 JP WO2017142079A1 JP 2018500231 A JP2018500231 A JP 2018500231A JP 2018500231 A JP2018500231 A JP 2018500231A JP WO2017142079 A1 JPWO2017142079 A1 JP WO2017142079A1
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- Japan
- Prior art keywords
- intestinal flora
- amylase
- improving agent
- derived
- intestinal
- 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.)
- Granted
Links
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Abstract
Description
項1. アスペルギルス属に属する微生物由来のアミラーゼを有効成分とする、腸内菌叢改善剤。
項2. 前記アミラーゼが、アスペルギルス・オリゼ由来である、項1に記載の腸内菌叢改善剤。
項3. 前記アミラーゼが、α−アミラーゼである、項1又は2に記載の腸内菌叢改善剤。
項4. 項1〜3のいずれかに記載の腸内菌叢改善剤を含む、腸内菌叢改善用の内服用医薬品。
項5. 項1〜3のいずれかに記載の腸内菌叢改善剤を含む、腸内菌叢改善用の食品用添加剤。
項6. 項1〜3のいずれかに記載の腸内菌叢改善剤を含む、腸内菌叢改善用の飲食品。
項7. アスペルギルス属に属する微生物由来のアミラーゼを腸内菌叢の改善が必要とされる者に経口適用する、腸内菌叢の改善方法。
項8. 前記アミラーゼが、アスペルギルス・オリゼ由来である、項7に記載の腸内菌叢の改善方法。
項9. 前記アミラーゼが、α−アミラーゼである、項7又は8に記載の腸内菌叢の改善方法。
項10. 腸内菌叢の改善処置に使用される、アスペルギルス属に属する微生物由来のアミラーゼ。
項11. アスペルギルス・オリゼ由来である、項10に記載のアミラーゼ。
項12. α−アミラーゼである、項10又は11に記載のアミラーゼ。
項13. 腸内菌叢改善剤の製造のためのアスペルギルス属に属する微生物由来のアミラーゼの使用。
項14. 前記アミラーゼが、アスペルギルス・オリゼ由来である、項13に記載の使用。
項15. 前記アミラーゼが、α−アミラーゼである、項13又は14に記載の使用。
本発明の腸内菌叢改善剤は、アスペルギルス属に属する微生物由来のアミラーゼを有効成分とすることを特徴とする。以下、本発明の腸内菌叢改善剤について詳述する。
本発明の腸内菌叢改善剤では、有効成分として、アスペルギルス属に属する微生物由来のアミラーゼを使用する。このように、アスペルギルス属に属する微生物由来のアミラーゼを選択し、これを使用することにより、腸内の乳酸菌やビフィズス菌等の善玉菌を増加させ、腸内菌叢を効果的に改善することが可能になる。
(1)作用
デンプン、グリコーゲン等の多糖のα−1,4結合をランダムに加水分解する。作用様式はエンド型である。
(2)至適pH
pH5.0付近である。
(3)至適温度
50℃付近である。
(4)分子量
SDS−PAGEによる測定で45,000±5,000ダルトンである。
本発明の腸内菌叢改善剤の適用量については、該剤が使用される製品の種類、用途、期待される効果、適用形態等に応じて適宜設定すればよいが、例えば、成人1日当たりの前記アミラーゼの摂取又は投与量として、1〜300,000U、好ましくは10〜150,000U、より好ましくは10〜100,000U、より一層好ましくは50〜50,000U、さらに好ましくは50〜15,000U、最も好ましくは500〜15,000Uが挙げられる。なお、本明細書において、アミラーゼ活性(U)は、以下の方法にて求められる値である。
まず、1重量%バレイショデンプン溶液(pH5.0)10mLを試験管にとり、37℃に保温する。続いて、アミラーゼ活性の測定対象となるサンプルを含む酵素溶液(溶媒は水を使用)1mLを加えて37℃で正確に10分間おいた後、アルカリ性酒石酸塩液(10重量%水酸化ナトリウム・34.6重量%酒石酸ナトリウムカリウム四水和物溶液)、銅液(6.932重量%硫酸銅五水和物溶液)を順に2mLずつ加える。その後、沸騰水中に15分間おいた後に流水中で冷却し、37.5重量%ヨウ化カリウム溶液2mL、6倍希釈した濃硫酸を加えたのち、0.05mol/Lチオ硫酸ナトリウムで滴定する。ブランクは酵素溶液を水(ブランク液)にして実施する。本条件下、1分間に1mgのブドウ糖に相当する還元力の増加をもたらすアミラーゼ量を1Uとする。算出には以下式を用いる。
本発明の腸内菌叢改善剤は、前記アミラーゼの作用によって、腸内でビフィズス菌及び乳酸菌等の善玉菌の菌数を増加させ、善玉菌が優勢な菌叢を形成させることができるので、腸内環境の健全化、健全な腸内環境の保持等の目的で使用される。特に、本発明の腸内菌叢改善剤は、腸内でビフィドバクテリウム属細菌及びラクトバシスル属細菌の菌数を増加させる作用に優れているので、ビフィドバクテリウム属細菌及びラクトバシスル属細菌の腸内菌数増加剤として使用することもできる。
本発明の腸内菌叢改善剤は、経口摂取又は経口投与により経口適用される。本発明の腸内菌叢改善剤は、経口摂取又は経口投与され、腸内に到達すると、腸内菌叢を改善する作用を発揮するので、飲食品、内服用医薬品、飼料、ペットフード等の各種製品に配合して使用することができる。
前述するように、アスペルギルス属に属する微生物由来のアミラーゼは、腸内菌叢を改善する作用がある。従って、本発明は、更に、アスペルギルス属に属する微生物由来のアミラーゼを腸内菌叢の改善が必要とされる者に経口適用する、腸内菌叢の改善方法;腸内菌叢の改善処置に使用される、アスペルギルス属に属する微生物由来のアミラーゼ;並びに、腸内菌叢改善剤の製造のためのアスペルギルス属に属する微生物由来のアミラーゼの使用を提供する。これらの発明における具体的態様については、前記「1.腸内菌叢改善剤」の欄に記載の通りである。
SDラット(オス、3週齢、株式会社広島実験動物研究所より入手)を用いて、アスペルギルス・オリゼ由来アミラーゼ製剤であるビオザイムA(天野エンザイム)の摂取が腸内菌叢に及ぼす影響を調べた。実験は、対照群と実施群の2群に分け、各群5匹のラットを用いた。それぞれの群について表1に示す飼料を14日間自由に摂取させた。
(ビオザイムAに含まれるα−アミラーゼの特性)
(1)作用
デンプン、グリコーゲン等の多糖のα−1,4結合をランダムに加水分解する。作用様式はエンド型である。
(2)至適pH
pH5.0付近である。
(3)至適温度
50℃付近である。
(4)分子量
SDS−PAGEによる測定で45,000±5,000ダルトンである。
Claims (9)
- アスペルギルス属に属する微生物由来のアミラーゼを有効成分とする、腸内菌叢改善剤。
- 前記アミラーゼが、アスペルギルス・オリゼ由来である、請求項1に記載の腸内菌叢改善剤。
- 前記アミラーゼが、α−アミラーゼである、請求項1又は2に記載の腸内菌叢改善剤。
- 請求項1〜3のいずれかに記載の腸内菌叢改善剤を含む、腸内菌叢改善用の内服用医薬品。
- 請求項1〜3のいずれかに記載の腸内菌叢改善剤を含む、腸内菌叢改善用の食品用添加剤。
- 請求項1〜3のいずれかに記載の腸内菌叢改善剤を含む、腸内菌叢改善用の飲食品。
- アスペルギルス属に属する微生物由来のアミラーゼを腸内菌叢の改善が必要とされる者に経口適用する、腸内菌叢の改善方法。
- 腸内菌叢の改善処置に使用される、アスペルギルス属に属する微生物由来のアミラーゼ。
- 腸内菌叢改善剤の製造のためのアスペルギルス属に属する微生物由来のアミラーゼの使用。
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