JP5511895B2 - Composition for improving the bioavailability of curcumin - Google Patents
Composition for improving the bioavailability of curcumin Download PDFInfo
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- JP5511895B2 JP5511895B2 JP2012130299A JP2012130299A JP5511895B2 JP 5511895 B2 JP5511895 B2 JP 5511895B2 JP 2012130299 A JP2012130299 A JP 2012130299A JP 2012130299 A JP2012130299 A JP 2012130299A JP 5511895 B2 JP5511895 B2 JP 5511895B2
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- turmeric
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Images
Description
本発明は,クルクミンの生物学的利用率を向上させるためおよびクルクミンの生物活性を増大させるため,主成分としてAr−ターメロールを有する,ターメリックの精油を含むクルクミンの組成物に関する。向上した生物学的利用率を,ボランティアによる人体実験により実証した。 The present invention relates to a composition of curcumin containing turmeric essential oil having Ar-turmerol as a main component in order to improve the bioavailability of curcumin and increase the biological activity of curcumin. Improved bioavailability was demonstrated by human experiments with volunteers.
クルクミン[1,7−ビス(4−ヒドロキシ−3−メトキシフェニル)−1,6−ヘプタジエン−3,5−ジオンはターメリックの主な黄色色素であり,一般的に使用されるスパイスであり,薬用植物Curcuma longa Linnの根茎に由来する。インド亜大陸および東南アジアでは,ターメリックは炎症,皮膚創傷,および腫瘍の治療剤として伝統的に使用されてきた。クルクミンの臨床活性はまだ確認されていない。 Curcumin [1,7-bis (4-hydroxy-3-methoxyphenyl) -1,6-heptadiene-3,5-dione is the main yellow pigment of turmeric, a commonly used spice, and medicinal It is derived from the rhizome of the plant Curcuma longa Linn. In the Indian subcontinent and Southeast Asia, turmeric has traditionally been used as a treatment for inflammation, skin wounds, and tumors. The clinical activity of curcumin has not been confirmed yet.
しかしながら,前臨床の動物モデルでは,クルクミンは癌の化学的予防,抗腫瘍性,および抗炎症性特性を示している(総説,参照,Kelloff,G.I.,et al,J.Cell Biochem.,1996,265:54−71)。クルクミンは,ヒトの疾患の家族性腫瘍性ポリープの遺伝モデルである,ラットにおいて(Rao,C.V.et al,Cancer Res.,1995,55:259−66;Kawamori,T.et al,Cancer Res.,1999,59:597−601),および複合腫瘍形成(Min/+)マウスにおいて(Mahmood,N.N.et al,Carcinogenesis,2000,31:921−27),発癌物質誘導腸管前癌性障害および悪性腫瘍の形成を防ぐ能力があるとされる。 However, in preclinical animal models, curcumin has shown cancer chemoprevention, anti-tumor and anti-inflammatory properties (review, reference, Kelloff, GI, et al, J. Cell Biochem. , 1996, 265: 54-71). Curcumin is a genetic model for familial neoplastic polyps of human disease (Rao, CV et al, Cancer Res., 1995, 55: 259-66; Kawamori, T. et al, Cancer). Res., 1999, 59: 597-601), and in complex tumorigenic (Min / +) mice (Mahmod, NN et al, Carcinogenesis, 2000, 31: 921-27), carcinogen-induced intestinal precancer. It is said to be capable of preventing the formation of sexual disorders and malignant tumors.
クルクミンはヒドロキシラジカル,スーパーオキシドアニオンおよび一重項酸素などの酸素種のスカベンジャーとして機能し(Subramanian,M.et al,Mutat.Res.,1994,311:249−55;Tonnesen,H.H.et al,Int.J.Pharm.,1992,87:79−87;Reddy,A.C.P.et al,Mol.Cell Biochem.,1994,137:1−8),脂質の過酸化反応を防止する(Donatus,I.A.,Biochem.Pharmacol.,1990,39:1869−75;Sharma,S.C.et al,Biochem.Pharmacol.,1972,21:1210−14)。クルクミンは成長,分化および悪性形質転換に関する細胞内シグナル誘導経路において多数の重要な要素を抑制する。 Curcumin functions as a scavenger for oxygen species such as hydroxy radicals, superoxide anions and singlet oxygen (Subramanian, M. et al, Mutat. Res., 1994, 311: 249-55; Tonsen, H. H. et al. , Int. J. Pharm., 1992, 87: 79-87; Reddy, ACP et al, Mol. Cell Biochem., 1994, 137: 1-8), preventing lipid peroxidation. (Donatus, IA, Biochem. Pharmacol., 1990, 39: 1869-75; Sharma, SC et al, Biochem. Pharmacol., 1972, 21: 1214-14). Curcumin suppresses a number of important elements in the intracellular signal induction pathways for growth, differentiation and malignant transformation.
シグナル伝達事象の間に,プロテインキナーゼ(Huang,T.S.et al,Proc.Natl.Acad.Sci.,1991,88:5292−96),c−Jun/AP−1活性化(Huang,T.S.et al,Proc.Natul.Acad.Sci.,1991,88:5292−96),プロスタグランジン生合成(Huang,M−T.et al,In L.W.Battenberg(ed.)Cancer Chemoprevention,CRC Press,Boca Raton,1992,pp375−91)および酵素シクロオキシゲナーゼ−2の活性および発現(Huang,M.T.,et al,Cancer Res.,1991,51:813−19;Zhang,F.et al,Carcinogenesis,1999,20:445−51)はクルクミンによって阻害される。この最後の特性はおそらくNF−κB誘導キナーゼ/IKKα/βシグナル伝達複合体のレベルで転写因子NF−κBの活性化を阻止するクルクミンの能力によってもたらされる(Plummer,S.et al,Oncogene,1999,18:6013−20)。 During signal transduction events, protein kinases (Huang, TS et al, Proc. Natl. Acad. Sci., 1991, 88: 5292-96), c-Jun / AP-1 activation (Huang, T S. et al, Proc. Natul. Acad. Sci., 1991, 88: 5292-96), prostaglandin biosynthesis (Huang, MT et al, In L. W. Battenberg (ed.) Cancer. Chemovention, CRC Press, Boca Raton, 1992, pp 375-91) and the activity and expression of the enzyme cyclooxygenase-2 (Huang, MT, et al, Cancer Res., 1991, 51: 813-19; Zhang, F .; et al, arcinogenesis, 1999,20: 445-51) is inhibited by curcumin. This last property is probably due to the ability of curcumin to block activation of the transcription factor NF-κB at the level of the NF-κB-inducible kinase / IKKα / β signaling complex (Plummer, S. et al, Oncogene, 1999). , 18: 6013-20).
クルクミンは,直接シクロオキシゲナーゼ−2を阻害し,その産生に関与する遺伝子の転写も阻害する。シクロオキシゲナーゼ(COX)は,アラキドン酸から複数のプロスタグランジン(PGs)の合成を触媒する。COXにはアイソフォームが2つあり,COX−1およびCOX−2と呼ばれる。COX−1は大抵の組織中で構成的に発現しており,ハウスキーピング機能に関与すると考えられている(Funk,C.D.et al,FASEB.J.,1991,5−2304−12)。一方,COX−2は大抵通常の組織中では検出できないが,癌遺伝子,増殖因子,発現物質および発癌プロモーターによって誘導される(Subbaramiah,K.et al,1996,Cancer Res.,1996,56:4424−29;DuBois,R.N.et al,J.Clin.Invest.,1994,93:493−98;Kelley,D.J.et al,Carcinogenesis,1997,18:795−99)。COX−2活性と発癌との間には,関連のあるいくつかの機構が存在する。 Curcumin directly inhibits cyclooxygenase-2 and also inhibits transcription of genes involved in its production. Cyclooxygenase (COX) catalyzes the synthesis of multiple prostaglandins (PGs) from arachidonic acid. There are two isoforms of COX, called COX-1 and COX-2. COX-1 is constitutively expressed in most tissues and is thought to be involved in the housekeeping function (Funk, CD et al, FASEB. J., 1991, 5-2304-12). . On the other hand, COX-2 is usually undetectable in normal tissues, but is induced by oncogenes, growth factors, expressed substances and tumor promoters (Subbaramiah, K. et al, 1996, Cancer Res., 1996, 56: 4424). -29; DuBois, RN et al, J. Clin. Invest., 1994, 93: 493-98; Kelley, D.J. et al, Carcinogenesis, 1997, 18: 795-99). There are several related mechanisms between COX-2 activity and carcinogenesis.
クルクミンは,非ステロイド系抗炎症薬(NSAIDS),抗炎症性および癌化学的予防特性をも有するが,その単なる代替物ではない。これはCOXがシクロオキシゲナーゼおよびペルオキシダーゼ活性を有する二機能酵素であるからである。PG合成にとって重要であるということを除いて,ペルオキシダーゼ機能は前発癌物質の活性化の原因になる。したがって,NSAIDSがCOXのペルオキシダーゼ機能を阻害しそこなうと抗癌剤としての効果が制限されることになりかねない。その一方,クルクミンはCOX−2のレベルを下方制御し,それによって酵素のシクロオキシゲナーゼおよびペルオキシダーゼ活性の両方を減少させる。 Curcumin also has non-steroidal anti-inflammatory drugs (NSAIDS), anti-inflammatory and cancer chemopreventive properties, but is not simply a replacement. This is because COX is a bifunctional enzyme having cyclooxygenase and peroxidase activities. Except for its importance for PG synthesis, peroxidase function is responsible for the activation of procarcinogens. Therefore, if NSAIDS fails to inhibit the peroxidase function of COX, the effect as an anticancer agent may be limited. On the other hand, curcumin down-regulates the level of COX-2, thereby reducing both the cyclooxygenase and peroxidase activities of the enzyme.
クルクミンは,アラキドン酸代謝を直接調節することによって,炎症および発癌のCOXおよびLOX(リポオキシゲナーゼ)経路の両方を阻止する少ない薬剤の中の一つである。マウスの表皮炎でのアラキドン酸の代謝および作用に対してのクルクミンの効果を評価するための研究では,クルクミンの局所適用がマウスにおいてアラキドン酸誘導の耳の炎症を阻害することが分かった(Huang,M.T.,et al Cancer Res.,1988,48:5941−46;1991,51:813−19)。クルクミン(10μM)は,アラキドン酸の5−及び8−ヒドロキシエイコサテトラエン酸への変換をそれぞれ60%および51%阻害し(LOX経路),そしてPGE2,PGF2aおよびPDG2への代謝をそれぞれ70%,64%および73%阻害する(COX経路)。 Curcumin is one of the few drugs that blocks both the COX and LOX (lipoxygenase) pathways of inflammation and carcinogenesis by directly regulating arachidonic acid metabolism. Studies to evaluate the effect of curcumin on arachidonic acid metabolism and action in mouse epidermitis found that topical application of curcumin inhibits arachidonic acid-induced ear inflammation in mice (Huang M.T., et al Cancer Res., 1988, 48: 5941-46; 1991, 51: 813-19). Curcumin (10 μM) inhibits the conversion of arachidonic acid to 5- and 8-hydroxyeicosatetraenoic acid by 60% and 51%, respectively (LOX pathway), and metabolism to PGE 2 , PGF 2a and PDG 2 Inhibits 70%, 64% and 73%, respectively (COX pathway).
別の研究では,ラットへの0.2%クルクミンの食餌投与はアゾキシメタン誘導結腸癌発症を阻害し,結腸及び腫瘍のホスホリパーゼA2,ホスホリパーゼCγ1およびPGE2レベルを減少した(Rao,C.V.etal,Cancer Res.,1995,55:259−66)。この研究では,食餌のクルクミンは結腸粘膜および腫瘍において,COXシステムを介してPGE2,PGF2a,PGD2,6−ケト−PGF2aおよびトロンボキサンB2を形成するための酵素活性も減少させ,LOX経路を介して5(S)−,8(S)−,12(S)−,および15(S)−ヒドロキシエイコサテトラエン酸の産生をも阻害する。 In another study, dietary administration of 0.2% curcumin to rats inhibited azoxymethane-induced colon cancer development and reduced colon and tumor phospholipase A 2 , phospholipase Cγ1 and PGE 2 levels (Rao, C.V. et al, Cancer Res., 1995, 55: 259-66). In this study, curcumin diet in the colonic mucosa and tumor, PGE 2, PGF 2a via the COX system, PGD 2, also the enzyme activity to form a 6-keto-PGF 2a and thromboxane B 2 is reduced, It also inhibits the production of 5 (S)-, 8 (S)-, 12 (S)-, and 15 (S) -hydroxyeicosatetraenoic acid via the LOX pathway.
有益な生物活性の優れた盛装にも関わらず,動物およびヒトにおいてクルクミンの生物学的利用率は低いままである。げっ歯類において,クルクミンは経口投与後の全身の生物学的利用率は低い(Ireson,C.R.et al,Cancer Res.,2001,41:1058−64).これは,吸収が不良および代謝が速いことに関係するかもしれない。結腸癌患者において標準ターメリック抽出物の最近のパイロット研究の結果からわかるように,クルクミンの生物学的利用率は,ヒトにおいても低いかもしれない(Sharma,R.A.et al,Clin.Cancer Res.,2001,7:1834−1900)。 Despite excellent dressing of beneficial biological activity, the bioavailability of curcumin remains low in animals and humans. In rodents, curcumin has a low systemic bioavailability after oral administration (Ireson, CR et al, Cancer Res., 2001, 41: 1058-64). This may be related to poor absorption and fast metabolism. As can be seen from the results of recent pilot studies of standard turmeric extracts in patients with colon cancer, the bioavailability of curcumin may also be low in humans (Sharma, RA et al, Clin. Cancer Res. , 2001, 7: 1834-1900).
間接的な証拠では,クルクミンは腸管内で代謝されるということが示唆されている。生体内(in vivo)のラットおよびマウスにおいて(Pan,M.H.et al,Drug Metabol.Dispos.,1999,27:486−94;Asai,A.,et al,Life Sci.2000,67:2785−93),ヒトおよびラットの肝細胞の懸濁液中において(Ireson et al,Ioc.cit)ならびにヒトおよびラットの腸内において(Ireson,C.R.et al,Cancer Epidemiol.Biomark.Prev.,2002,11:105−11),クルクミンは,クルクミングルクロニドおよびクルクミン硫酸塩への代謝O−抱合,ならびにテトラヒドロクルクミン,ヘキサヒドロクルクミンおよびヘキサヒドロクルクミノールへの生体還元を受ける。クルクミンの代謝抱合および還元はラットの腸組織よりもヒトで多かった。 Indirect evidence suggests that curcumin is metabolized in the intestine. In vivo rats and mice (Pan, MH et al, Drug Metabol. Dispos., 1999, 27: 486-94; Asai, A., et al, Life Sci. 2000, 67: 2785-93), in suspensions of human and rat hepatocytes (Ireson et al, Ioc. Cit) and in the intestines of humans and rats (Ireson, CR et al, Cancer Epidemiol. Biomark. Prev. , 2002, 11: 105-11), curcumin undergoes metabolic O-conjugation to curcumin glucuronide and curcumin sulfate and bioreduction to tetrahydrocurcumin, hexahydrocurcumin and hexahydrocurcuminol. There was more metabolic conjugation and reduction of curcumin in humans than intestinal tissues of rats.
クルクミンの代謝動態において,腸管が重要な役割を果たしているということが示唆されてきた。このことは[3H]標識されたクルクミンを逆転性ラット消化管嚢(inverted rat gut sacs)と一緒に培養した実験に主に基づかれている(Ravindranath,V.and Chandrasekhara,N.,Toxicology,1981,20:251−57)。このことはヒトおよびラットからの腸画分で最近確認された。抱合加水分解酵素を用いた組織抽出物の処理の前後で存在するクルクミン量差を分析することによって判断されるように,腸粘膜は,ラットからの肝臓及び腎組織と同様に,クルクミンをグルクロン酸化および硫酸化することができる(Asai et al,loc cit)。このように,消化管代謝が実質的に生体内(in vivo)でクルクミンから生じる全代謝性産出の一因となる。ヒトの腸画分において,活性硫酸またはグルクロン酸との抱合は,ラット組織中よりも,いっそう多く起こるが,ヒトの肝組織内での抱合はあまり多くない(Ireson,C.R.,et al,Cancer Epidemiol.Biomark.Prev.,2002,11:105−11)。 It has been suggested that the intestinal tract plays an important role in the metabolic dynamics of curcumin. This is mainly based on experiments in which [ 3 H] -labeled curcumin was cultured with inverted rat gut sacs (Ravindranath, V. and Chanderaskhara, N., Toxicology, 1981, 20: 251-57). This was recently confirmed in intestinal fractions from humans and rats. The intestinal mucosa, like liver and kidney tissue from rats, oxidizes curcumin to glucuronidation, as determined by analyzing differences in the amount of curcumin present before and after treatment of tissue extracts with conjugated hydrolase. And can be sulfated (Asai et al, loc cit). Thus, gastrointestinal metabolism contributes substantially to the total metabolic output that results from curcumin in vivo. In human intestinal fractions, conjugation with active sulfate or glucuronic acid occurs more frequently than in rat tissue, but less in human liver tissue (Ireson, CR, et al. , Cancer Epidemiol. Biomark. Prev., 2002, 11: 105-11).
経口投与されたクルクミンは生物学的利用率が低く,血中濃度が低いだけ又は測定できないけれども(Perkins,S.et al,Cancer Epidemiol.Biomark.Prev.,2002,11:535−40),この投与経路は化学的に誘導される皮膚癌および肝癌発症を阻害する(Limtrakul,P.,et al,Cancer Lett.,1997,116:197−203;Chiang,S.E.et al,Carcinogenesis,2000,21:331−35)。クルクミンの経口投与は放射線誘導乳腺腫瘍および下垂体腫瘍の発症も阻害する(Inano,H.et al,Carcinogenesis,2000,21:1835−41;Int.J.Rediat.Oncol.Biol.Phys.,2002,52:212−23;ibid,2002,53:735−43)。同様に,結腸直腸でのクルクミンレベルを評価する研究において,一日量3.6gのクルクミンは,消化管外ではクルクミンの分布はがわずかで,結腸直腸内において薬学的に有効なレベルに達する(Garcea,G.et al,Cancer Epidemiol.Biomark.Prev.,2005,14:120−25)。Earlier Shobhaら(Planta Med.,1998,64:353−56)はクルクミンと一緒にピぺリンを投与することがクルクミンの生物学的利用率を向上させることを見つけた。しかしながら,向上レベルはわずかなだけであり,ピペリンで補完したときでさえ,クルクミンは3時間後には検出できなかった。
このように,ヒト被験者へのクルクミンの投与から十分な効果を得るために,生物学的利用率を向上させるための手段を探索する必要がある。本発明はこの方向においての成果である。 Thus, in order to obtain sufficient effects from the administration of curcumin to human subjects, it is necessary to search for means for improving the bioavailability. The present invention is a result in this direction.
ターメリックの精油をクルクミンに添加すると,クルクミンの生物学的利用率は顕著に向上することが分かった。したがって,適切な割合でターメロン(turmerone)(ターメリック精油の主成分)と混合したクルクミンの組成物を提供する。 When turmeric essential oil was added to curcumin, the bioavailability of curcumin was significantly improved. Accordingly, a composition of curcumin mixed with turmerone (the main component of turmeric essential oil) in appropriate proportions is provided.
以下,実施例に基づいて本発明を実施するための最良の形態を説明する。 Hereinafter, the best mode for carrying out the present invention will be described based on examples.
本発明は,ターメリックから分離されたクルクミノイド類と,ターメリックから得られた揮発性油を適量混ぜることによって,クルクミンの生物学的利用率を向上させる生産物に関する。この目的のために,ターメリックの揮発性油を,精油を分離するための蒸気蒸留という従来の方法によって分離し,この方法は当技術分野でよく知られている。クルクミンを溶媒抽出によって脱油ターメリックから分離する。この目的のための適切な溶媒は,アセトン,ヘキサン,エチルアセテート,ジクロロエタン,クロロホルムなどを含む。抽出は適度な温度(40−55℃)で適宜行われ,その溶媒は30−60%の固形物を含む濃縮物を産出するために部分的に除去される。この溶液はクルクミンの結晶を得るために冷却され,クルクミンの結晶は濾過または遠心などのいずれかの適切な方法によって分離される。この生産物を分析すると,95%のクルクミンを含んでいた。クルクミンとその揮発性油は均一の生産物を得るために混合(mix)および調合(blend)される。クルクミンと油の比率は3:1〜99:1間で変化してよく,好ましくは比率85:15である。さらに好ましい比率は95:5である。その混合物(blend)500mgを含むゼラチンカプセルを調製した。精油不含のクルクミンカプセルを同様に調製した。 The present invention relates to a product that improves the bioavailability of curcumin by mixing an appropriate amount of curcuminoids separated from turmeric and volatile oil obtained from turmeric. For this purpose, turmeric volatile oils are separated by a conventional method called steam distillation to separate essential oils, which is well known in the art. Curcumin is separated from the deoiled turmeric by solvent extraction. Suitable solvents for this purpose include acetone, hexane, ethyl acetate, dichloroethane, chloroform and the like. Extraction is suitably performed at a moderate temperature (40-55 ° C.) and the solvent is partially removed to yield a concentrate containing 30-60% solids. The solution is cooled to obtain curcumin crystals and the curcumin crystals are separated by any suitable method such as filtration or centrifugation. Analysis of this product contained 95% curcumin. Curcumin and its volatile oil are mixed and blended to obtain a uniform product. The ratio of curcumin to oil may vary between 3: 1 and 99: 1, preferably a ratio of 85:15. A more preferred ratio is 95: 5. Gelatin capsules containing 500 mg of the blend were prepared. Essential oil-free curcumin capsules were similarly prepared.
年齢が25〜45才の9人の健常なヒトボランティアを本研究のために選んだ。ボランティアに,クルクミンおよび本発明の組成物を投与量50mg/体重kgでカプセルで与えた。ボランティアに最初にクルクミンを飲むように忠告した。血液サンプルを0時間および1時間または30分の間隔で8時間定期的に採取した。1週間のウオッシュアウト期間後,同じ臨床試験計画表(protocol)が本発明の組成物で続けられた。全血をエチルアセテートで完全に抽出した。回収率は80.12〜86.49の範囲であった。エチルアセテート抽出物を,溶媒としてメタノールを用いるRO−C18カラム(25×4.5mm)を備えたHPLCおよび420nmでのUV検出によって分析した。溶出流速は1ml/分であった。 Nine healthy human volunteers aged 25-45 were selected for this study. Volunteers were given curcumin and the composition of the invention in capsules at a dose of 50 mg / kg body weight. Advised volunteers to drink curcumin first. Blood samples were taken periodically for 8 hours at intervals of 0 hours and 1 hour or 30 minutes. After a one week washout period, the same clinical protocol was followed with the composition of the present invention. Whole blood was extracted completely with ethyl acetate. Recovery was in the range of 80.12 to 86.49. The ethyl acetate extract was analyzed by HPLC with a RO-C18 column (25 × 4.5 mm) using methanol as solvent and UV detection at 420 nm. The elution flow rate was 1 ml / min.
本発明の組成物は9人のヒトボランティアに投与され,血液サンプルを0時間でとその後1時間または30分間隔で8時間まで採取した。その結果,最大吸収が投与から3時間後に見られた。また,クルクミン単独を投与した場合と比較して5〜16倍高いクルクミンレベルをもたらした。 The composition of the present invention was administered to 9 human volunteers, and blood samples were collected at 0 hours and then at 1 hour or 30 minute intervals for up to 8 hours. As a result, maximum absorption was observed 3 hours after administration. It also resulted in curcumin levels that were 5 to 16 times higher than when curcumin alone was administered.
Earlier Shobhaら(Planta Med.,1998,64:353−56)はクルクミンと一緒にピぺリンを投与することでクルクミンの生物学的利用率が向上することを観察してきた。しかしながら,向上レベルはわずかなだけで,ピペリンで補完したときでさえ,クルクミンは3時間後には検出できなかった。本発明のように,補助剤としてターメロン(turmerone)を用いると,ピーク吸収は3時間で起こり,低レベルで少なくとも8時間ずっと続いた。なお,8時間以上は測定しなかった。 Earlier Shobha et al. (Plant Med., 1998, 64: 353-56) have observed that the administration of piperine with curcumin improves the bioavailability of curcumin. However, the level of improvement was negligible and curcumin could not be detected after 3 hours, even when supplemented with piperine. With turmerone as an adjunct as in the present invention, peak absorption occurred at 3 hours and continued at low levels for at least 8 hours. It was not measured for 8 hours or more.
代表的な結果を以下の表に示す。
結果を図1でグラフを使って示す。クルクミンのピーク吸収は3時間でおこり,本発明の組成物の場合,8時間ずっと血液中に少量残存した。なお,8時間以降は測定を行わなかった。このデータは,重要な意義を有する。ピーク吸収で,生物学的利用率の向上は,9人の中で,5〜16倍におよび,平均値10.62倍であった。 The results are shown graphically in FIG. The peak absorption of curcumin occurred in 3 hours, and in the case of the composition of the present invention, a small amount remained in the blood for 8 hours. Measurement was not performed after 8 hours. This data has significant significance. The increase in bioavailability at peak absorption was 5-16 times among 9 people, with an average of 10.62 times.
本発明の組成物は精油成分それ自体が生物活性があり(例えば,参照Yue,A et al,Int.J.Mol.Med.,2002,9:481−84;Jayaprakasha,G.K.et al,Z.Naturforsch.,2002,57:828−35)およびこのようにクルクミンの生物活性を相乗的に向上すると期待される付加的な利点を有する。 The composition of the present invention is biologically active in its essential oil component itself (see, eg, Yue, A et al, Int. J. Mol. Med., 2002, 9: 481-84; Jayaprakasha, GK et al. , Z. Natureforsch., 2002, 57: 828-35) and thus have the additional benefit expected to synergistically improve the biological activity of curcumin.
本発明は,クルクミンの生物学的利用率を向上させるためおよびクルクミンの生物活性を増大させるため,主成分としてAr−ターメロールを有する,ターメリックの精油を含むクルクミンの組成物に関する。 The present invention relates to a composition of curcumin containing turmeric essential oil having Ar-turmerol as a main component in order to improve the bioavailability of curcumin and increase the biological activity of curcumin.
Claims (7)
前記ターメリックの精油は,ターメリックから分離されたものであり,
前記クルクミノイドは,前記ターメリックの精油が除かれた脱油ターメリックから分離されたものであり,
前記クルクミノイドと前記ターメリックの精油を混合し,比率が3:1から85:15又は95:5から99:1の範囲となるように調製された,
経口投与用の組成物。 A composition for oral administration comprising curcuminoids and turmeric essential oil,
The turmeric essential oil is separated from the turmeric,
The curcuminoid is separated from the deoiled turmeric from which the turmeric essential oil has been removed,
The curcuminoid and the turmeric essential oil were mixed and prepared so that the ratio was in the range of 3: 1 to 85:15 or 95: 5 to 99: 1 .
Composition for oral administration.
水蒸気蒸留を用いて前記ターメリックの精油を単離し,前記ターメリックの精油と脱油ターメリックを得る工程と;
溶媒を使用して前記脱油ターメリックから前記クルクミノイドを単離する工程と;
前記クルクミノイドの濃縮物を産出するために前記溶媒を除去し,前記濃縮物に30%から60%の固形物を含ませる工程と;
前記濃縮物からクルクミノイドの結晶を得るために前記濃縮溶液を冷却する工程と;
前記冷却した溶液から前記クルクミノイドの結晶を単離する工程;および
単離した前記クルクミノイドの結晶および前記ターメリックの精油を混合し,前記クルクミンと前記ターメリックの揮発性油の比率が3:1から85:15又は95:5から99:1となるように調整する工程を含む,方法。 A method for producing a composition for oral administration comprising curcuminoid and turmeric essential oil, comprising:
Isolating said turmeric essential oil using steam distillation to obtain said turmeric essential oil and deoiled turmeric;
Isolating the curcuminoid from the deoiled turmeric using a solvent;
Removing the solvent to produce a curcuminoid concentrate and including from 30% to 60% solids in the concentrate;
Cooling the concentrated solution to obtain curcuminoid crystals from the concentrate;
Isolating the curcuminoid crystals from the cooled solution; and mixing the isolated curcuminoid crystals and the turmeric essential oil such that the ratio of the curcumin to the turmeric volatile oil is 3: 1 to 85: Adjusting the ratio from 15 or 95: 5 to 99: 1 .
6. The method of claim 5, wherein the ratio of the curcuminoid to the turmeric essential oil is from 3: 1 to 85:15.
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