JP4127863B2 - Intestinal environment improving composition - Google Patents

Intestinal environment improving composition Download PDF

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JP4127863B2
JP4127863B2 JP07104093A JP7104093A JP4127863B2 JP 4127863 B2 JP4127863 B2 JP 4127863B2 JP 07104093 A JP07104093 A JP 07104093A JP 7104093 A JP7104093 A JP 7104093A JP 4127863 B2 JP4127863 B2 JP 4127863B2
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bacteria
present
intestinal
tannins
product
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JPH06256180A (en
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則幸 石原
勉 大久保
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Taiyo Kagaku KK
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Taiyo Kagaku KK
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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Description

【0001】
【産業上の利用分野】
本発明は、腸内有用菌増殖効果,腸内有害菌増殖抑制効果及びに腸内細菌の産生する有害物質の生成を抑制する効果を有する腸内環境改善組成物に関する。より詳しくは、ヒト又は動物の腸内細菌叢の改善,すなわち、腸内のビフィズス菌,乳酸菌等の有用菌の菌数を増加,クロストリジウム菌,大腸菌等の有害菌の菌数を低下及び腸内のアンモニア,腐敗産物,発癌関連酵素等の有害物質の生成量を減少させることによって、ヒト又は動物の健康の増進に有効な腸内環境改善組成物に関する。
【0002】
【従来の技術】
従来、腸内の細菌を観察することは困難であった。しかし、近年の嫌気培養技術の著しい進歩により、糞便中の菌数が腸内の菌数を反映するようになり腸内細菌叢に関する研究が多く行われるようになった。その結果、腸内細菌が、ヒト又は動物の健康と深い関わりを有し、ヒト又は動物の生理状態に影響を及ぼしていることが明らかにされている。
【0003】
また、これらの腸内細菌は食物や薬物に由来するさまざまな物質や内因性物質の代謝に関与していて、ヒト又は動物の栄養,生理機能,感染免疫,発癌,老化,薬効等に重要な役割を果たしている(光岡知足 ”腸内菌の世界”叢文社,1980年;D.J.Hentges ”Human Intestinal Microflora in Health and Disease” Academic Press,1983)。
【0004】
これらの腸内細菌の中には、ビフィズス菌や乳酸菌のようにヒト又は動物の病原菌,ウイルス等に対する感染防御,栄養,有害菌増殖抑制等の面で有利に働く有用菌や、クロストリジウム菌のように発癌,肝臓疾患,動脈硬化症,高血圧症,自発性感染症等に関係している有害菌がある。また、有害菌の中には、日和味感染を起こし、敗血症,心内膜炎,脳・肝・肺の腫瘍,膀胱炎,膣炎等,好ましからぬ状況をもたらすことが多い。(光岡知足 ”腸内細菌の話”岩波書店,1978年)。
【0005】
このようなことから、ヒト又は動物の腸内で有用菌の定着、増殖の促進及び有害菌の増殖を抑制又は菌数を低下させることが最適な腸内細菌叢であると考えられている。このために、腸内の有用菌を増加させるために種々のビフィズス菌製剤や、ヨーグルトなどが開発されているが、ヒト又は動物の生体内での胃酸,胆汁酸などの上部消化管のバリヤーの通過,増殖部位としての下部消化管における増殖可能性といった生菌の定着ならびに増殖能力が大きな問題となっている。
【0006】
一方、腸内における有用菌の増殖に必要な因子として最も重要なものは糖類であると考えられ、ラクチュロース,パラチノース,フラクトオリゴ糖,ラフィノース,スタキオース,キシロオリゴ糖などの種々の糖類が有用菌の増殖にとって有効であるとされており、これらを含有した飲食物も提案されているが、これらの糖類は、一部の大腸菌,クロストリジウム属細菌等の有害菌に対しても資化性があり、それらの増殖にも関与している。従って、上記糖類が有用菌に選択的に資化されるわけではなく、ヒト又は動物の腸内で有用菌の菌数のみが特異的には増加しないのが現状である。
【0007】
また、Biosci.Biotech.Biochem.,Vol.46,588−591(1992)においては、タンニン類である茶ポリフェノール類を1日当たり1.2g摂取することにより腸内有害菌の菌数が特異的に低下することが記載されている。しかし、この腸内有害菌増殖抑制効果を期待するための量を摂取する場合、ポリフェノール化合物の有する苦みのため直接摂取すると摂取時にかなりの苦痛を感じる。また、その量を食品,飼料等に添加して用いる場合でも苦みをマスキングすることが非常に困難である。以上のことより、未だ満足のいく結果が得られていない。
【0008】
さらに、平成4年度日本栄養食糧学会講演要旨集のp.36では、グアーガムを酵素分解して得られた酵素分解物を摂取すると糞便のpHが低下し、それにより腸内環境が改善され、便通改善が期待できると記載されているが、上記記載の量を摂取した場合、ヒトによっては、腹部における多量のガスの発生等、好ましからない状態が生じる。
【0009】
【発明が解決しようとする課題】
本発明は、腸内細菌のうちビフィズス菌,乳酸菌等の有用菌のみを選択的に増殖させ、クロストリジウム菌等の有害菌を選択的に抑制し、腸内のアンモニア,腐敗産物,発癌関連酵素等の腸内有害物質の生成量を減少させる腸内環境改善組成物を提供することを目的とする。
【0010】
【課題を解決するための手段】
本発明者らは、ヒト又は動物の腸内の環境を効率よく改善する目的で鋭意研究を重ねた結果、我々が普段から飲用しているお茶・烏龍茶・紅茶の成分、すなわち、(+)−カテキン,(+)−ガロカテキン,(+)−ガロカテキンガレート,(−)−エピカテキン,(−)−エピカテキンガレート,(−)−エピガロカテキン,(−)−エピガロカテキンガレート,遊離型テアフラビン,テアフラビンモノガレートA,テアフラビンモノガレートB,テアフラビンジガレート等のタンニン類及び水溶性食物繊維を含有する組成物が、腸内のビフィズス菌,乳酸菌等の有用菌の菌数を増加させ、クロストリジウム菌,大腸菌等の有害菌の菌数を低下し、及び腸内のアンモニア,腐敗産物,発癌関連酵素等の有害物質の生成量を減少させる、というヒト又は動物の健康の増進にとって有効な腸内環境改善に効果を発揮すること、及び、本発明の組成物は、タンニン類又は水溶性食物繊維を単独で用いた場合と異なり、少量で効果が期待できるため、タンニン類のもつ苦みのマスキング及び水溶性食物繊維摂取による腹部における多量のガスの発生が抑えられることを初めて見い出し、本発明を完成させるに至った。
【0011】
本発明における有用菌とは、病原菌,ウイルス等に対する感染防御,栄養,有害菌増殖抑制等により、ヒト又は動物の健康に有益な効果をもたらす腸内微生物のことであり、ビフィズス菌及び乳酸菌がその代表的なものである。また、有害菌とは、発癌,肝臓疾患,動脈硬化症,高血圧症,感染症等に関係し,ヒト又は動物の健康に有害な影響を与える腸内微生物のことであり、クロストリジウム菌,緑濃菌及び病原性大腸菌がその代表的なものである。
【0012】
本発明に用いられるタンニン類は、緑茶,烏龍茶又は紅茶の水もしくはアルコール抽出物の限外濾過膜及び逆浸透膜処理、又は酢酸エチル可溶画分より得ることができるが、柿しぶなど他の原料起源のものあるいは化学合成品でも差し支えない。得られたこれらのタンニン類を本発明に用いる場合は単独で、もしくは2種以上の混合物として、さらにはタンニン類を含む粗抽出物でも使用できる。
【0013】
本発明で使用する水溶性食物繊維は、例えば、グアーガム,ローカストビーンガム,タラガム、キャロブガム等より選ばれる1種又は2種以上の増殖多糖類をアスペルギルス属菌やリゾープス属菌等に由来するβ−マンナナーゼを用いて酵素的にマンノース直鎖のみを加水分解することによって得られた低分子化したグアーガム酵素分解物がその代表的なものであるが、他の天然のガム質等の酵素分解物でも良く、その原料及び酵素については特に限定されない。また、本発明に用いる水溶性食物繊維は酵素の反応時間を変えることにより分子量を変化させることができるが、本発明の腸内環境改善の目的では、例えばガラクトマンナンの場合、マンノース直鎖の鎖長が30〜200単位の範囲内に80%以上分布するものが良く、さらに好ましくは50〜150単位の範囲内に80%以上分布していることが良い。
【0014】
本発明における水溶性食物繊維の鎖長とは、グアーガム酵素分解物を一例として説明すると、グアーガム酵素分解物の主鎖はマンノースであり、その結合している数を指し、その測定法は特に限定するものではないが、たとえば分解された多糖類を水に溶解しTOSO 803D型の高速液体クロマトグラフィー(HPLC)を用い、水を移動相にしてG3000PWのカラムにてゲル濾過を行い、示差屈折計にて検出する。この際にグルコース数が既知の直鎖デキストリン(グルコース数30,100,200)を指標物質として測定することにより図1のようなグラフが得られる。これから30〜200単位が占める割合を面積から算出できる。
【0015】
マンノースの鎖長が30単位より短い場合は、還元糖の含量が多くなるため腸内有用菌増殖効果が期待できず、一方、マンノース鎖長が200単位以上であると、高分子量のため腸内有用菌の増殖効果が期待できない。
【0016】
尚、腸内有用菌増殖効果を得るための有効量に関しては、タンニン類として、1日当り0.0001g〜0.04g/体重kgが好ましく,さらに好ましくは0.001g〜0.03g/体重kgが好ましい。0.0001g/体重kgより少ない投与量では効果が弱く、0.04g/体重kgより多い場合は腸内の有害菌の増殖抑制のみならず有用菌への影響も考えられることから好ましくない。また、水溶性食物繊維として、1日当たり0.05〜0.83g/体重kgが好ましく、さらに好ましくは0.08g/体重kg〜0.50g/体重kgが好ましい。0.05g/体重kgより少ない投与量では効果が弱く、0.83g/体重kgより多い場合は腹部におけるガスの発生等、ヒト又は動物にとって好ましくない影響が生じる。さらに、タンニン類と水溶性食物繊維の混合比は、重量比で、1:6〜1:30、さらに好ましくは、1:15〜1:20となるように含有させることが望ましい。混合比が1:6以上、すなわち、水溶性食物繊維に対するタンニン類の割合が多すぎると腸内環境改善効果及びタンニン類特有の苦みのマスキング効果が得られない。また、反対に1:30以下、すなわち、タンニン類に対する水溶性食物繊維の割合が多すぎると、腸内環境改善効果及び水溶性食物繊維特有の腹部における大量のガスの発生が生じ、本発明の効果が期待できない。
【0017】
本発明品は経口摂取により効果を発現する。その使用形態は錠剤,顆粒剤,カプセル剤,シロップ剤,ドリンク剤又は各種食品,飼料又はペットフードの形態が可能であり、その使用形態及び添加方法についても特に限定されない。
【0018】
以下、本発明を実施例により詳細に説明するが、これにより特に限定されるものではない。
【0019】
【実施例】
実施例1
タンニン類として、茶の熱水抽出物の限外濾過膜処理画分を凍結乾燥した粉末を、水溶性食物繊維として、グアーガム粉末にアスペルギルス属菌由来のβ−マンナナーゼを40〜45℃で24時間を作用させた後、噴霧乾燥した粉末を、それぞれ用いて、重量比で1:17となるように混合し、本発明組成物を得た。得られた組成物のタンニン類の成分組成は、(+)−カテキン3.5%,(+)−ガロカテキン14.8%,(+)−ガロカテキンガレート11.6%,(−)−エピカテキン7%,(−)−エピカテキンガレート4.6%,(−)−エピガロカテキン15.0%及び(−)−エピガロカテキンガレート18.0%であった。さらに、グアーガム酵素分解物の水溶性食物繊維含有量は、AOAC法で測定したところ、80%以上であり、固定層として、カラムにG3000PW(東ソー(株)製)を用いて高速液体クロマトグラフィーで測定した結果、該ガラクトマンナンの糖鎖の80%以上はマンノースの鎖長が50〜150単位の範囲内に包含されていた。このとき糖鎖単位の標準試薬として、グルコース数が既知の直鎖デキストリン(グルコース数50,100,150)を用いた。
【0020】
実施例2
実施例1で得られた本発明品100gにアップルフレーバー2gと水を加えて全容2リットルとし、滅菌済褐色ビン(110ml)に100mlずつ充填、アルミキャップで密封後、120℃,30分間滅菌し、本発明品入りドリンク(A)20本を調製した。
【0021】
試験例1
健康な成人9名を対象に通常の食生活をしているコントロールの期間中に2回糞便を採取し、その後、実施例2により得られたドリンク(A)を毎食1本ずつ12日間摂取させ、その5日目,7日目,11日目,13日目の4回糞便を採取した。その後、上記ドリンクの摂取を中止し、中止してから13日目,15日目の2回糞便を採取した。
【0022】
以上合計8回の糞便採取時に、糞便中のビフィズス菌とクロストリジウム菌の菌数,ビフィズス菌の占有率,乳酸菌の検出率,糞便pH,アンモニア含量,インドール,p−クレゾール含量,β−グルクロニダーゼ活性及び尿中インディカン含量を求めた。ビフィズス菌及びクロストリジウム菌の菌数については表1に、ビフィズス菌の占有率については表2に、乳酸菌の検出率については表3に、糞便pHについては表4に、アンモニア含量,インドール及びp−クレゾール含量については表5に、β−グルクロニダーゼ活性については表6に、尿中インディカン含量については表7に、それぞれ結果を示した。
【0023】
なお、表1〜表7は、本発明品の摂取前,摂取中−1(摂取開始5日目と7日目),摂取中−2(摂取開始11日目と13日目),摂取後の4つの期間に分けて結果が示されている。また、各期間において2回ずつ糞便の採取を行ったので、数値は合計18の平均を示している。
【0024】
【表1】

Figure 0004127863
【0025】
表1に示したように本発明品を摂取することにより有用菌であるビフィズス菌の菌数の有意な増加が認められ、有害菌であるクロストリジウム菌の菌数が有意に低下した。
【0026】
【表2】
Figure 0004127863
【0027】
表2に示したように本発明品を摂取することにより有用菌であるビフィズス菌の占有率の有意な増加が認められた。
【0028】
【表3】
Figure 0004127863
【0029】
表3に示したように本発明品を摂取することにより有用菌である乳酸菌の検出率の有意な増加が認められた。
【0030】
【表4】
Figure 0004127863
【0031】
表4に示したように本発明品を摂取することにより便秘症の改善等に重要である糞便pHが有意に減少した。
【0032】
【表5】
Figure 0004127863
【0033】
表5に示したように本発明品を摂取することにより肝機能改善等に重要であるアンモニア含量,インドール及びp−クレゾール含量が有意に減少した。
【0034】
【表6】
Figure 0004127863
【0035】
表6に示したように本発明品を摂取することにより大腸癌予防等に重要であるβ−グルクロニダーゼ活性が有意に低下した。
【0036】
【表7】
Figure 0004127863
【0037】
表7に示したように本発明品を摂取することによりインドール化合物の代謝産物であるインディカンの含量が有意に減少した。
【0038】
試験例2
ビーグル犬4匹を各群10匹とし、4群に分けた。飼料600gに、実施例1で調製した本発明品を9g(タンニン類0.5g、水溶性食物繊維8.5g)添加した群をA群とし、グアーガム酵素分解物のみを8.5g添加した群をB群とし、さらにタンニン類のみを0.5g添加した群をC群、3g添加した群をD群とし、30日間飼育した。試験終了後、各群のビーグル犬の糞便を採取し、糞便中のビフィズス菌及びクロストリジウム菌の菌数を測定した。その結果を表8に示した。
【0039】
【表8】
Figure 0004127863
【0040】
表8より明らかなように、飼料に本発明品を添加したA群は、有用菌である乳酸菌の菌数が有意に増加し、有害菌であるクロストリジウム菌の菌数が有意に減少した。それと比較してグアーガム酵素分解物のみを添加したB群とタンニン類のみを0.5g添加した群をC群では、それぞれの菌数の有意な変化は認められなかった。また、タンニン類のみを3g添加したD群について摂食阻害が生じ、試験不可能であった。
【0041】
以上より明らかなように、本発明品は、ヒト又は動物の腸内環境を極めて効果的に改善することが認められた。
【0042】
比較例1
タンニン類8gに代える以外は、実施例2と同様の方法でドリンク(B)を調製し、健康な成人9名を用いて試験例1と同様の試験を行った。そして、糞便中のビフィズス菌とクロストリジウム菌の菌数を測定した。その結果を表9に示した。
【0043】
【表9】
Figure 0004127863
【0044】
表9より明らかなように、タンニン類のみを摂取した場合、クロストリジウム菌の菌数のみを弱冠減少させた程度で、本発明品ほど効果的に腸内環境を改善しなかった。
【0045】
比較例2
本発明品をグアーガム酵素分解物140gに代える以外は、実施例2と同様の方法でドリンク(C)を調製し、健康な成人9名を用いて試験例1と同様の試験を行った。そして、糞便中のビフィズス菌とクロストリジウム菌の菌数を測定した。その結果を表10に示した。
【0046】
【表10】
Figure 0004127863
【0047】
表10より明らかなように、グアーガム酵素分解物のみを摂取した場合、ビフィズス菌の菌数のみを弱冠増加させた程度で、本発明品ほど効果的に腸内環境を改善しなかった。
【0048】
【発明の効果】
本発明品は、ヒト又は動物の腸内のビフィズス菌,乳酸菌等の有用菌の菌数を増加、クロストリジウム菌,大腸菌等の有害菌の菌数を低下及び腸内のアンモニア,腐敗産物,発癌関連酵素等の生成量を減少させる、という極めて優れた腸内環境改善効果を有する組成物であり、さらに、抗う蝕効果,血中コレステロール上昇抑制効果,血中の脂質代謝改善効果等も有し、本発明はヒト又は動物の健康増進に貢献するところは多大であり、産業上非常に重要である。
【図面の簡単な説明】
【図1】示差屈折計にて検出したゲル濾過の溶出パターンの図である。[0001]
[Industrial application fields]
The present invention relates to an intestinal environment-improving composition having an effect of proliferating useful intestinal bacteria, an effect of suppressing the growth of harmful enteric bacteria, and an effect of suppressing the production of harmful substances produced by enteric bacteria. More specifically, improvement of the intestinal flora of humans or animals, that is, increasing the number of useful bacteria such as bifidobacteria and lactic acid bacteria in the intestine, decreasing the number of harmful bacteria such as Clostridium bacteria and Escherichia coli, and the intestines The present invention relates to a composition for improving the intestinal environment which is effective in promoting the health of humans or animals by reducing the amount of harmful substances such as ammonia, spoilage products, and carcinogenic enzymes.
[0002]
[Prior art]
Conventionally, it has been difficult to observe bacteria in the intestines. However, due to significant progress in anaerobic culture technology in recent years, the number of bacteria in the stool reflects the number of bacteria in the intestine, and many studies on the intestinal microflora have been conducted. As a result, it has been clarified that enterobacteria have a deep connection with the health of humans or animals and affect the physiological state of humans or animals.
[0003]
In addition, these intestinal bacteria are involved in the metabolism of various substances and endogenous substances derived from food and drugs, and are important for human or animal nutrition, physiology, infectious immunity, carcinogenesis, aging, drug efficacy, etc. It plays a role (Tomoho Mitsuoka “The World of Enterobacteria”, Sobunsha, 1980; DJ Hentges “Human Integral Microflora in Health and Disease” Academic Press, 1983).
[0004]
Among these enterobacteriaceae, useful bacteria such as bifidobacteria and lactic acid bacteria that are beneficial in terms of protecting against human and animal pathogens, viruses, etc., nutrition, and controlling the growth of harmful bacteria, such as Clostridium bacteria In addition, there are harmful bacteria related to carcinogenesis, liver disease, arteriosclerosis, hypertension, and spontaneous infection. In addition, some harmful bacteria cause mild infections and often lead to unfavorable situations such as sepsis, endocarditis, brain / liver / lung tumors, cystitis, and vaginitis. (Tomochika Mitsuoka, "The story of enteric bacteria", Iwanami Shoten, 1978).
[0005]
For these reasons, it is considered that the establishment of useful bacteria in the intestines of humans or animals, the promotion of growth, and the suppression of the growth of harmful bacteria or the reduction of the number of bacteria is the optimal intestinal bacterial flora. For this purpose, various bifidobacteria preparations and yogurt have been developed to increase useful bacteria in the intestines. However, the upper gastrointestinal barriers such as gastric acid and bile acids in the human or animal body have been developed. The establishment and proliferation ability of viable bacteria such as passage and proliferation potential in the lower gastrointestinal tract as a growth site are major problems.
[0006]
On the other hand, the most important factor necessary for the growth of useful bacteria in the intestine is considered to be sugars. Various sugars such as lactulose, palatinose, fructooligosaccharides, raffinose, stachyose, and xylooligosaccharides are useful for the growth of useful bacteria. Although it is considered effective, foods and drinks containing these have also been proposed, but these sugars are also assimilating against some harmful bacteria such as Escherichia coli and Clostridium bacteria. It is also involved in proliferation. Therefore, the saccharide is not selectively assimilated by useful bacteria, and the number of useful bacteria is not specifically increased in the intestines of humans or animals.
[0007]
Biosci. Biotech. Biochem. , Vol. 46,588-591 (1992) describes that the number of enteric harmful bacteria is specifically reduced by ingesting 1.2 g of tea polyphenols, which are tannins, per day. However, when ingesting the amount for expecting this intestinal harmful bacteria growth inhibitory effect, if it is ingested directly due to the bitterness of the polyphenol compound, considerable pain will be felt at the time of ingestion. Further, even when the amount is added to food, feed, etc., it is very difficult to mask bitterness. From the above, satisfactory results have not yet been obtained.
[0008]
Furthermore, p. In No. 36, it is described that when an enzymatic degradation product obtained by enzymatic degradation of guar gum is ingested, the pH of feces decreases, thereby improving the intestinal environment and improving stool passage. In some cases, some humans experience undesirable conditions such as the generation of a large amount of gas in the abdomen.
[0009]
[Problems to be solved by the invention]
The present invention selectively propagates only useful bacteria such as bifidobacteria and lactic acid bacteria among intestinal bacteria, selectively suppresses harmful bacteria such as Clostridium bacteria, and intestinal ammonia, spoilage products, carcinogenesis-related enzymes, etc. An object of the present invention is to provide an intestinal environment-improving composition that reduces the amount of intestinal harmful substances produced.
[0010]
[Means for Solving the Problems]
As a result of intensive studies for the purpose of efficiently improving the intestinal environment of humans or animals, the present inventors have found that the ingredients of tea, oolong tea, and tea that we usually drink, that is, (+) − Catechin, (+)-gallocatechin, (+)-gallocatechin gallate, (-)-epicatechin, (-)-epicatechin gallate, (-)-epigallocatechin, (-)-epigallocatechin gallate, free form A composition containing tannins such as theaflavin, theaflavin monogallate A, theaflavin monogallate B, theaflavin digallate and water-soluble dietary fiber increases the number of useful bacteria such as bifidobacteria and lactic acid bacteria in the intestine, and clostridium It reduces the number of harmful bacteria such as bacteria and Escherichia coli, and reduces the amount of harmful substances such as ammonia, spoilage products, and carcinogenesis-related enzymes in the intestines. It is effective in improving the intestinal environment effective for promoting human or animal health, and the composition of the present invention is effective in a small amount unlike the case where tannins or water-soluble dietary fibers are used alone. Since it can be expected, it has been found for the first time that masking of the bitterness of tannins and generation of a large amount of gas in the abdomen due to intake of water-soluble dietary fiber can be suppressed, and the present invention has been completed.
[0011]
Useful bacteria in the present invention are intestinal microorganisms that have a beneficial effect on human or animal health by protecting against infection with pathogenic bacteria, viruses, etc., nutrition, and controlling the growth of harmful bacteria, and bifidobacteria and lactic acid bacteria are It is representative. In addition, harmful bacteria are intestinal microorganisms related to carcinogenesis, liver disease, arteriosclerosis, hypertension, infectious diseases, etc., and have harmful effects on human or animal health. Fungi and pathogenic E. coli are representative.
[0012]
Tannins used in the present invention can be obtained from ultrafiltration membrane and reverse osmosis membrane treatment of water or alcoholic extract of green tea, oolong tea or black tea, or ethyl acetate soluble fraction, It can be a raw material or a chemically synthesized product. When these obtained tannins are used in the present invention, they can be used singly or as a mixture of two or more, and even a crude extract containing tannins.
[0013]
The water-soluble dietary fiber used in the present invention is, for example, β-derived from Aspergillus or Rhizopus or the like from one or more kinds of proliferating polysaccharides selected from guar gum, locust bean gum, tara gum, carob gum and the like. A typical example is a guar gum enzyme degradation product obtained by hydrolyzing only a mannose straight chain enzymatically with mannanase, but other natural degradation products such as gums can also be used. The raw materials and enzymes are not particularly limited. The water-soluble dietary fiber used in the present invention can change the molecular weight by changing the reaction time of the enzyme. For the purpose of improving the intestinal environment of the present invention, for example, in the case of galactomannan, a mannose linear chain It is preferable that the length is 80% or more distributed within the range of 30 to 200 units, and more preferably 80% or more is distributed within the range of 50 to 150 units.
[0014]
The chain length of the water-soluble dietary fiber in the present invention is explained by taking a guar gum enzymatic degradation product as an example. The main chain of the guar gum enzymatic degradation product is mannose, and refers to the number of the bonds, and the measurement method is particularly limited. For example, dissolved polysaccharides are dissolved in water, and gel filtration is performed on a G3000PW column using TOSO 803D high performance liquid chromatography (HPLC) with water as the mobile phase. To detect. At this time, a graph as shown in FIG. 1 is obtained by measuring a linear dextrin having a known glucose number (glucose number 30, 100, 200) as an indicator substance. From this, the proportion of 30 to 200 units can be calculated from the area.
[0015]
When the chain length of mannose is shorter than 30 units, the content of reducing sugar increases, so that the effect of proliferating useful bacteria in the intestine cannot be expected. On the other hand, when the mannose chain length is 200 units or more, the intestinal Proliferation effect of useful bacteria cannot be expected.
[0016]
The effective amount for obtaining the effect of intestinal useful bacteria growth is preferably 0.0001 g to 0.04 g / kg body weight per day, more preferably 0.001 g to 0.03 g / kg body weight as tannins. preferable. When the dose is less than 0.0001 g / kg body weight, the effect is weak, and when the dose is more than 0.04 g / kg body weight, not only the growth of harmful bacteria in the intestine but also the effect on useful bacteria is considered unpreferable. Further, the water-soluble dietary fiber is preferably 0.05 to 0.83 g / kg body weight per day, more preferably 0.08 g / kg body weight to 0.50 g / kg body weight. When the dose is less than 0.05 g / kg body weight, the effect is weak. When the dose is more than 0.83 g / kg body weight, adverse effects such as the generation of gas in the abdomen occur. Furthermore, the mixing ratio of the tannins and the water-soluble dietary fiber is desirably contained so that the weight ratio is 1: 6 to 1:30, more preferably 1:15 to 1:20. If the mixing ratio is 1: 6 or more, that is, if the ratio of tannins to water-soluble dietary fiber is too large, the intestinal environment improving effect and the bitterness-specific masking effect cannot be obtained. On the other hand, if the ratio of water-soluble dietary fiber to 1:30 or less, that is, too high, the effect of improving the intestinal environment and the generation of a large amount of gas in the abdomen specific to water-soluble dietary fiber occurs. The effect cannot be expected.
[0017]
The product of the present invention is effective when taken orally. The form of use can be in the form of tablets, granules, capsules, syrups, drinks or various foods, feeds or pet foods, and the use form and addition method are not particularly limited.
[0018]
EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, it is not specifically limited by this.
[0019]
【Example】
Example 1
As the tannins, a powder obtained by freeze-drying the ultrafiltration membrane-treated fraction of tea hot water extract is used as water-soluble dietary fiber, and β-mannanase derived from Aspergillus is used as a guar gum powder at 40 to 45 ° C. for 24 hours. Then, the spray-dried powders were mixed with each other at a weight ratio of 1:17 to obtain the composition of the present invention. The composition of the tannins of the obtained composition was (+)-catechin 3.5%, (+)-gallocatechin 14.8%, (+)-gallocatechin gallate 11.6%, (-)-epi. Catechin 7%, (−)-epicatechin gallate 4.6%, (−)-epigallocatechin 15.0% and (−)-epigallocatechin gallate 18.0%. Furthermore, the water-soluble dietary fiber content of the enzymatic degradation product of guar gum is 80% or more as measured by the AOAC method, and high-performance liquid chromatography using G3000PW (manufactured by Tosoh Corporation) as a fixed layer as a fixed layer. As a result of the measurement, 80% or more of the sugar chains of the galactomannan were included within the range of 50 to 150 units of mannose chain length. At this time, a linear dextrin having a known glucose number (glucose number 50, 100, 150) was used as a standard reagent for the sugar chain unit.
[0020]
Example 2
100 g of the product of the present invention obtained in Example 1 was added with 2 g of apple flavor and water to make a total volume of 2 liters. 20 drinks (A) containing the product of the present invention were prepared.
[0021]
Test example 1
The feces were collected twice during the control period of normal healthy eating for 9 healthy adults, and then the drink (A) obtained in Example 2 was taken for 12 days, one meal per meal. The feces were collected 4 times on the 5th, 7th, 11th and 13th days. Thereafter, the ingestion of the drink was stopped, and feces were collected twice on the 13th and 15th days after the cancellation.
[0022]
At the time of collecting stool eight times in total, the number of bifidobacteria and clostridium bacteria in stool, bifidobacteria occupancy, lactic acid bacteria detection rate, fecal pH, ammonia content, indole, p-cresol content, β-glucuronidase activity and The urinary indican content was determined. Table 1 shows the numbers of bifidobacteria and clostridium bacteria, Table 2 shows the occupancy of bifidobacteria, Table 3 shows the detection rate of lactic acid bacteria, Table 4 shows the fecal pH, and the ammonia content, indole and p- The results are shown in Table 5 for the cresol content, Table 6 for the β-glucuronidase activity, and Table 7 for the urinary indican content.
[0023]
In addition, Table 1-Table 7 are before ingestion of this invention product, during ingestion -1 (5th and 7th day of ingestion start), during ingestion-2 (11th and 13th day of ingestion start), after ingestion The results are shown divided into four periods. Moreover, since feces were collected twice in each period, the numerical value represents an average of 18 in total.
[0024]
[Table 1]
Figure 0004127863
[0025]
As shown in Table 1, by taking the product of the present invention, a significant increase in the number of Bifidobacterium, which is a useful bacterium, was observed, and the number of Clostridium, a harmful bacterium, was significantly reduced.
[0026]
[Table 2]
Figure 0004127863
[0027]
As shown in Table 2, a significant increase in the occupancy rate of bifidobacteria, which are useful bacteria, was observed by ingesting the product of the present invention.
[0028]
[Table 3]
Figure 0004127863
[0029]
As shown in Table 3, a significant increase in the detection rate of lactic acid bacteria, which are useful bacteria, was observed by ingesting the product of the present invention.
[0030]
[Table 4]
Figure 0004127863
[0031]
As shown in Table 4, stool pH, which is important for improving constipation, etc., was significantly reduced by taking the product of the present invention.
[0032]
[Table 5]
Figure 0004127863
[0033]
As shown in Table 5, the intake of the product of the present invention significantly decreased the ammonia content, indole and p-cresol content, which are important for improving liver function.
[0034]
[Table 6]
Figure 0004127863
[0035]
As shown in Table 6, the β-glucuronidase activity, which is important for preventing colorectal cancer, was significantly reduced by ingesting the product of the present invention.
[0036]
[Table 7]
Figure 0004127863
[0037]
As shown in Table 7, the content of indican, a metabolite of the indole compound, was significantly reduced by ingesting the product of the present invention.
[0038]
Test example 2
Each group consisted of 4 beagle dogs, 10 animals, and was divided into 4 groups. A group in which 9 g of the present invention product prepared in Example 1 (0.5 g of tannins, 8.5 g of water-soluble dietary fiber) was added to 600 g of feed was designated as Group A, and only 8.5 g of guar gum enzymatic degradation product was added. Was group B, and a group to which only 0.5 g of tannins were added was a group C, and a group to which 3 g was added was a group D, and were reared for 30 days. After the test was completed, feces from each group of beagle dogs were collected, and the numbers of bifidobacteria and clostridium bacteria in the feces were measured. The results are shown in Table 8.
[0039]
[Table 8]
Figure 0004127863
[0040]
As is clear from Table 8, the number of bacteria of lactic acid bacteria, which are useful bacteria, significantly increased and the number of Clostridium bacteria, which are harmful bacteria, significantly decreased in Group A in which the product of the present invention was added to the feed. In comparison, no significant change was observed in the number of bacteria in Group B, to which only the guar gum enzyme degradation product was added, and Group C, in which 0.5 g of tannins alone was added. Moreover, feeding inhibition occurred in group D to which 3 g of tannins alone was added, and the test was impossible.
[0041]
As is clear from the above, the product of the present invention was found to extremely effectively improve the intestinal environment of humans or animals.
[0042]
Comparative Example 1
A drink (B) was prepared in the same manner as in Example 2 except that it was replaced with 8 g of tannins, and the same test as in Test Example 1 was conducted using 9 healthy adults. And the number of Bifidobacterium and Clostridium bacteria in feces was measured. The results are shown in Table 9.
[0043]
[Table 9]
Figure 0004127863
[0044]
As is apparent from Table 9, when only tannins were ingested, the intestinal environment was not improved as effectively as the present invention product, only by reducing the number of Clostridium bacteria alone.
[0045]
Comparative Example 2
A drink (C) was prepared in the same manner as in Example 2 except that the present invention product was replaced with 140 g of the guar gum enzyme degradation product, and the same test as in Test Example 1 was performed using 9 healthy adults. And the number of Bifidobacterium and Clostridium bacteria in feces was measured. The results are shown in Table 10.
[0046]
[Table 10]
Figure 0004127863
[0047]
As can be seen from Table 10, when only the guar gum enzyme degradation product was ingested, the intestinal environment was not improved as effectively as the present invention, only by increasing the number of bifidobacteria alone.
[0048]
【The invention's effect】
The product of the present invention increases the number of useful bacteria such as bifidobacteria and lactic acid bacteria in the intestine of humans or animals, decreases the number of harmful bacteria such as Clostridium bacteria and Escherichia coli, and intestinal ammonia, spoilage products, and carcinogenesis-related It is a composition that has an excellent intestinal environment improving effect of reducing the production amount of enzymes, etc., and further has an anti-cariogenic effect, an effect of suppressing blood cholesterol elevation, an effect of improving blood lipid metabolism, The present invention greatly contributes to the promotion of human or animal health, and is very important in industry.
[Brief description of the drawings]
FIG. 1 is a diagram of an elution pattern of gel filtration detected by a differential refractometer.

Claims (2)

タンニン類及びマンノース直鎖の鎖長が30〜200単位の範囲内に80%以上分布するガラクトマンナンを含有する腸内有害物質生成抑制組成物。  An intestinal harmful substance production-suppressing composition comprising galactomannan in which the chain length of tannins and mannose straight chain is distributed in an amount of 80% or more within a range of 30 to 200 units. 腸内有害物質が、アンモニア、p−クレゾール、インドール、インディカンよりなる群より選ばれる1種又は2種以上である請求項1記載の腸内有害物質生成抑制組成物。  The intestinal harmful substance production-suppressing composition according to claim 1, wherein the intestinal harmful substance is one or more selected from the group consisting of ammonia, p-cresol, indole, and indican.
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AU4272596A (en) * 1995-08-25 1997-03-19 Jasna Mandic Production process of the ecological pharmaceutical compositions in the veterinary medical field
JP2002114690A (en) * 2000-10-12 2002-04-16 Taiyo Kagaku Co Ltd Deodorant for excrement
US7157493B2 (en) 2001-11-28 2007-01-02 Nashai Biotech, Llc Methods of making and using theaflavin, theaflavin-3-gallate, theaflavin-3′-gallate and theaflavin 3,3′-digallate and mixtures thereof
NZ569389A (en) * 2001-11-28 2010-01-29 Nashai Biotech Llc Methods of making and using theaflavin, theaflavin-3-gallate, theaflavin-3'-gallate and theaflavin 3,3'-digallate and mixtures thereof
SE527555C2 (en) 2003-04-04 2006-04-11 Probi Ab Composition for treating cardiovascular disease, diabetes, cancer, Alzheimer's disease, has tannase-producing strains of Lactobacillus plantarum or Lactobacillus species that adhere to human intestinal mucosa in combination with tannin
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