JPWO2013141267A1 - Polyphenol stabilizer, composition containing the stabilizer and processed product - Google Patents
Polyphenol stabilizer, composition containing the stabilizer and processed product Download PDFInfo
- Publication number
- JPWO2013141267A1 JPWO2013141267A1 JP2014506259A JP2014506259A JPWO2013141267A1 JP WO2013141267 A1 JPWO2013141267 A1 JP WO2013141267A1 JP 2014506259 A JP2014506259 A JP 2014506259A JP 2014506259 A JP2014506259 A JP 2014506259A JP WO2013141267 A1 JPWO2013141267 A1 JP WO2013141267A1
- Authority
- JP
- Japan
- Prior art keywords
- polyphenol
- stabilizer
- ellagic acid
- procyanidins
- beverage
- 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
- 235000013824 polyphenols Nutrition 0.000 title claims abstract description 192
- 150000008442 polyphenolic compounds Chemical class 0.000 title claims abstract description 191
- 239000003381 stabilizer Substances 0.000 title claims abstract description 112
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- 229920002079 Ellagic acid Polymers 0.000 claims abstract description 110
- ATJXMQHAMYVHRX-CPCISQLKSA-N Ellagic acid Natural products OC1=C(O)[C@H]2OC(=O)c3cc(O)c(O)c4OC(=O)C(=C1)[C@H]2c34 ATJXMQHAMYVHRX-CPCISQLKSA-N 0.000 claims abstract description 110
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- FAARLWTXUUQFSN-UHFFFAOYSA-N methylellagic acid Natural products O1C(=O)C2=CC(O)=C(O)C3=C2C2=C1C(OC)=C(O)C=C2C(=O)O3 FAARLWTXUUQFSN-UHFFFAOYSA-N 0.000 claims abstract description 110
- CWEZAWNPTYBADX-UHFFFAOYSA-N Procyanidin Natural products OC1C(OC2C(O)C(Oc3c2c(O)cc(O)c3C4C(O)C(Oc5cc(O)cc(O)c45)c6ccc(O)c(O)c6)c7ccc(O)c(O)c7)c8c(O)cc(O)cc8OC1c9ccc(O)c(O)c9 CWEZAWNPTYBADX-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229920002414 procyanidin Polymers 0.000 claims abstract description 88
- ADRVNXBAWSRFAJ-UHFFFAOYSA-N catechin Natural products OC1Cc2cc(O)cc(O)c2OC1c3ccc(O)c(O)c3 ADRVNXBAWSRFAJ-UHFFFAOYSA-N 0.000 claims abstract description 64
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- Cosmetics (AREA)
Abstract
カカオ由来のプロシアニジン類や茶由来のカテキン類などのポリフェノールを含有する加工製品について、加熱抽出工程、加熱殺菌工程、および中性やアルカリ性条件下で保存中に発生する、エピ体カテキン類のエピマー化や、プロシアニジン類の低減を抑制する、ポリフェノール安定化剤を提供すること、および該安定化剤を含有する組成物、飲食品、医薬品、化粧品を提供することを課題とする。エラグ酸およびプニカラジンの少なくとも一方を含む安定化剤と、ポリフェノールとを共存させることにより、ポリフェノールの安定化が可能となる。上記安定化剤として、ザクロ抽出物などの植物抽出物、エラグ酸精製品、プニカラジン精製品およびこれらの混合物を用いることができる。Epimerization of epi-catechins that occur during storage in processed products containing polyphenols such as cacao-derived procyanidins and tea-derived catechins under heat and extraction processes, heat sterilization processes, and neutral and alkaline conditions Another object of the present invention is to provide a polyphenol stabilizer that suppresses the reduction of procyanidins, and to provide a composition, a food, a drink, a pharmaceutical, and a cosmetic containing the stabilizer. By allowing the stabilizer containing at least one of ellagic acid and punicalazine and the polyphenol to coexist, the polyphenol can be stabilized. As the stabilizer, a plant extract such as a pomegranate extract, an ellagic acid refined product, a punicaladine refined product, and a mixture thereof can be used.
Description
本発明は、ポリフェノールの安定化剤および該安定化剤を含有するポリフェノール組成物に関する。また、本発明は、上記ポリフェノール組成物を用いて製造される、飲食品、医薬品、または化粧品といったポリフェノール含有加工製品に関する。さらに詳しくは、本発明は、エピ体カテキン類のエピマー化抑制剤および/またはプロシアニジン類の低減抑制剤、それら抑制剤を含有するポリフェノール組成物およびポリフェノール含有加工製品に関する。 The present invention relates to a polyphenol stabilizer and a polyphenol composition containing the stabilizer. The present invention also relates to a polyphenol-containing processed product such as a food or drink, a pharmaceutical product, or a cosmetic manufactured using the polyphenol composition. More specifically, the present invention relates to an epimerization inhibitor of epi-catechins and / or a reduction inhibitor of procyanidins, a polyphenol composition containing these inhibitors, and a polyphenol-containing processed product.
ポリフェノールは、果物や野菜などの様々な植物中に含まれている。一般に、ポリフェノールを摂取することは、健康維持に有益であることが知られている。 Polyphenols are contained in various plants such as fruits and vegetables. In general, it is known that taking polyphenols is beneficial for maintaining health.
例えば、カカオはカカオポリフェノールを含む。カカオポリフェノールは、抗酸化作用、歯石形成抑制作用、抗腫瘍作用、抗ストレス作用、発癌予防作用などの様々な生理効果を有することが知られている。カカオポリフェノールの代表的な成分として、エピカテキン、カテキン、プロシアニジンB2、プロシアニジンB5、プロシアニジンC1、シンナムタンニンA2などが挙げられる。 For example, cocoa includes cocoa polyphenols. Cocoa polyphenols are known to have various physiological effects such as an antioxidant action, a calculus formation inhibitory action, an antitumor action, an antistress action, and a carcinogenesis preventing action. Representative components of cocoa polyphenols include epicatechin, catechin, procyanidin B2, procyanidin B5, procyanidin C1, cinnamtannin A2, and the like.
また、緑茶、紅茶、ウーロン茶などの茶類は、茶ポリフェノールを豊富に含む。茶ポリフェノールは、抗酸化活性、抗菌作用、コレステロール上昇抑制などの様々な生理効果を有することが知られている。茶ポリフェノールの代表的な成分は、非エピ体カテキン類と、エピ体カテキン類とに大別される。非エピ体カテキン類は、カテキン、ガロカテキン、カテキンガレート、ガロカテキンガレートなどを含む。また、エピ体カテキン類は、エピカテキン、エピガロカテキン、エピカテキンガレート、エピガロカテキンガレートなどを含む。 Teas such as green tea, black tea and oolong tea are rich in tea polyphenols. Tea polyphenols are known to have various physiological effects such as antioxidant activity, antibacterial action, and suppression of cholesterol elevation. Representative components of tea polyphenols are broadly classified into non-epimeric catechins and epimeric catechins. Non-epimeric catechins include catechin, gallocatechin, catechin gallate, gallocatechin gallate and the like. Epi-body catechins include epicatechin, epigallocatechin, epicatechin gallate, epigallocatechin gallate and the like.
ポリフェノールは、pH値や加熱による温度の変化に伴って、構造が変化することが知られている。例えば、カカオポリフェノールに含まれるエピカテキンは、抽出時には(−)−エピカテキンとして存在するが、熱い水性溶液中では(−)−カテキンへとエピマー化することが知られている。これに対し、上記エピマー化を最小化する方法として、加熱温度を下げること、pHを下げること、および/または加熱時間を短くすることを含む方法が提案されている(特許文献1)。また、茶ポリフェノールに含まれる各成分については、容器詰茶飲料の製造工程、特に、茶葉を温水で抽出する工程や抽出液を容器に充填した後に殺菌する工程において、天然型カテキン類の異性化が起こることが知られている。これに対し、上記天然型カテキン類の異性化を抑制する方法として、茶葉の抽出液または抽出用水に、L−アスコルビン酸を添加して茶抽出液のpHを5以下に調節した後に、加熱殺菌を行う方法が提案されている(特許文献2)。 Polyphenols are known to change in structure with changes in pH value and temperature due to heating. For example, epicatechin contained in cacao polyphenol exists as (−)-epicatechin at the time of extraction, but is known to epimerize to (−)-catechin in a hot aqueous solution. On the other hand, as a method for minimizing the epimerization, a method including lowering the heating temperature, lowering the pH, and / or shortening the heating time has been proposed (Patent Document 1). In addition, for each component contained in tea polyphenols, isomerization of natural catechins in the manufacturing process of container-packed tea beverages, especially in the process of extracting tea leaves with warm water or in the process of sterilizing after filling the container with the extract Is known to happen. On the other hand, as a method for suppressing the isomerization of the natural catechins, the pH of the tea extract is adjusted to 5 or less by adding L-ascorbic acid to the tea leaf extract or extraction water, and then heat sterilized. The method of performing is proposed (Patent Document 2).
ポリフェノール含有加工製品において、ポリフェノールが有する生理機能の効果を目的どおり発揮させるためには、配合したポリフェノールが安定に存在し、加工製品においても、その生理効果を維持することが望ましい。 In the polyphenol-containing processed product, in order to exert the physiological function effect of the polyphenol as intended, it is desirable that the blended polyphenol exists stably, and that the processed product maintains its physiological effect.
しかしながら、一般的な飲食品などの加工製品の製造時には、保存、加熱、および殺菌などの処理工程において、pHが4以上、かつ37℃以上の温度といった条件が適用される。このような条件下において、通常、ポリフェノールは安定的に存在できない。例えば、エピ体カテキン類は、pH4以上で保存されることによって、非エピ体カテキン類へエピマー化する。また、プロシアニジン類は、pH4以上で加熱および保存されることによって、構造が変化し、検出される加工製品中の総量が経時的に低減する。 However, when manufacturing processed products such as general foods and drinks, conditions such as a temperature of 4 or higher and 37 ° C. or higher are applied in processing steps such as storage, heating, and sterilization. Under such conditions, polyphenols usually cannot exist stably. For example, epimeric catechins epimerize into non-epimeric catechins by being stored at pH 4 or higher. In addition, procyanidins are heated and stored at a pH of 4 or higher, so that the structure changes, and the total amount in the processed product to be detected decreases with time.
特許文献1および2に見られるように、これまでに提案されているポリフェノールの安定化技術は、pH、加熱温度、および加熱時間といった条件の調節に関する。このような従来の方法によれば、加工製品のpHやその製造工程における処理条件が制約を受けることになる。そのため、より簡便な方法によってポリフェノールを安定化する手段が求められている。
As seen in
本発明の1つの課題は、ポリフェノールの安定化に有効な安定化剤の提供に関する。特に、本発明では、ポリフェノールの安定化において、エピ体カテキン類のエピマー化を抑制する手段、および/またはプロシアニジン類の低減を抑制する手段として有効な安定化剤の提供を意図している。本発明の別の課題は、上記ポリフェノールの安定化剤を含有し、ポリフェノールが配合後も本来の生理機能を安定的に維持できる、ポリフェノール含有組成物、および該組成物を用いて構成される加工製品の提供に関する。 One subject of this invention is related with provision of the stabilizer effective in stabilization of polyphenol. In particular, the present invention intends to provide a stabilizer that is effective as means for suppressing epimerization of epimeric catechins and / or means for suppressing reduction of procyanidins in stabilizing polyphenols. Another object of the present invention is to provide a polyphenol-containing composition containing the above-mentioned polyphenol stabilizer and capable of stably maintaining the original physiological function even after blending the polyphenol, and a process comprising the composition. Concerning product provision.
本発明者らは、ポリフェノールの安定化に効果を有する各種成分について鋭意検討した。その結果、ザクロ抽出物などの植物抽出物がポリフェノールの安定化に有用であることを見出した。特に、ザクロ抽出物に豊富に含まれているエラグ酸およびプニカラジンが、ポリフェノールの安定化に著しく効果的であることを見出した。本発明はこれらの知見に基づくものであり、以下に記載の事項をその特徴とするものである。 The present inventors diligently studied various components having an effect on stabilization of polyphenol. As a result, it was found that plant extracts such as pomegranate extract are useful for stabilizing polyphenols. In particular, it has been found that ellagic acid and punicalazine, which are abundant in pomegranate extract, are remarkably effective in stabilizing polyphenols. The present invention is based on these findings and is characterized by the following matters.
(1)ポリフェノールの安定化剤であって、エラグ酸およびプニカラジンの少なくとも一方を含む安定化剤。
(2)上記安定化剤の全重量を基準として、少なくとも、上記エラグ酸の含有量が15重量%以上であるか、又は上記プニカラジンの含有量が30重量%以上である、上記(1)に記載の安定化剤。
(3)上記ポリフェノール安定化剤が、エピ体カテキン類のエピマー化抑制剤である、上記(1)又は(2)に記載の安定化剤。
(4)上記ポリフェノール安定化剤が、プロシアニジン類の低減抑制剤である、上記(1)又は(2)に記載の安定化剤。
(5)上記安定化剤が、エラグ酸およびプニカラジンの少なくとも一方を含む植物抽出物である、上記(1)〜(4)のいずれか1つに記載の安定化剤。
(6)上記植物抽出物が、ザクロ抽出物である、上記(1)〜(5)のいずれか1つに記載の安定化剤。(1) A stabilizer for polyphenol, comprising at least one of ellagic acid and punicalazine.
(2) Based on the total weight of the stabilizer, at least the content of the ellagic acid is 15% by weight or more, or the content of the punicalazine is 30% by weight or more. The stabilizer described.
(3) The stabilizer according to (1) or (2) above, wherein the polyphenol stabilizer is an epimerization inhibitor of epimeric catechins.
(4) The stabilizer according to (1) or (2), wherein the polyphenol stabilizer is a procyanidin reduction inhibitor.
(5) The stabilizer according to any one of (1) to (4), wherein the stabilizer is a plant extract containing at least one of ellagic acid and punicalagin.
(6) The stabilizer according to any one of (1) to (5), wherein the plant extract is a pomegranate extract.
(7)ポリフェノールと、エラグ酸およびプニカラジンの少なくとも一方を含む安定化剤とを含む組成物。
(8)上記(1)〜(6)のいずれか1つに記載の安定化剤、およびポリフェノールを含有する組成物であり、上記ポリフェノール100重量部に対して、少なくとも、上記エラグ酸が1.5重量部以上、又は上記プニカラジンが5重量部以上となる割合で上記安定化剤を含む、上記(7)に記載の組成物。
(9)上記ポリフェノールが、プロシアニジン類およびカテキン類からなる群から選択される少なくとも1種である、上記(7)又は(8)に記載の組成物。
(10)上記安定化剤が、エラグ酸およびプニカラジンの少なくとも一方を含む植物抽出物である、上記(7)〜(9)のいずれか1つに記載の組成物。
(11)上記植物抽出物が、ザクロ抽出物である、上記(7)〜(10)のいずれか1つに記載の組成物。(7) A composition comprising polyphenol and a stabilizer containing at least one of ellagic acid and punicalagin.
(8) A composition containing the stabilizer according to any one of (1) to (6) above and a polyphenol, wherein at least the ellagic acid is 1. The composition according to (7) above, which contains the stabilizer in an amount of 5 parts by weight or more, or the ratio of the punicalagin to 5 parts by weight or more.
(9) The composition according to (7) or (8), wherein the polyphenol is at least one selected from the group consisting of procyanidins and catechins.
(10) The composition according to any one of (7) to (9), wherein the stabilizer is a plant extract containing at least one of ellagic acid and punicalagin.
(11) The composition according to any one of (7) to (10), wherein the plant extract is a pomegranate extract.
(12)上記(7)〜(11)のいずれか1つに記載の組成物を用いて構成される、飲食品、医薬品及び化粧品からなる群から選択されるポリフェノール含有加工製品。
(13)上記ポリフェノール含有加工製品のpHが4.0〜8.0である、上記(12)に記載のポリフェノール含有加工製品。
(14)ポリフェノール含有加工製品の製造方法であって、
(a)上記(7)〜(11)のいずれか1つに記載の組成物を調製する工程と、
(b)上記組成物を用いて、ポリフェノール含有加工製品を調製する工程と、
(c)上記ポリフェノール含有加工製品を37℃以上の温度に加熱する工程と
を含む、製造方法。
(15)上記(14)に記載の製造方法によって製造された飲食品、医薬品、および化粧品からなる群から選択されるポリフェノール含有加工製品。
(16)ポリフェノール100重量部に対して、少なくとも、エラグ酸を1.5重量部以上、又はプニカラジンを5重量部以上の割合で共存させる、ポリフェノールの安定化方法。(12) A polyphenol-containing processed product selected from the group consisting of foods and drinks, pharmaceuticals, and cosmetics, comprising the composition according to any one of (7) to (11) above.
(13) The polyphenol-containing processed product according to (12), wherein the polyphenol-containing processed product has a pH of 4.0 to 8.0.
(14) A method for producing a polyphenol-containing processed product,
(A) preparing the composition according to any one of (7) to (11) above;
(B) using the composition to prepare a polyphenol-containing processed product;
(C) A process comprising: heating the polyphenol-containing processed product to a temperature of 37 ° C. or higher.
(15) A polyphenol-containing processed product selected from the group consisting of foods and drinks, pharmaceuticals, and cosmetics manufactured by the manufacturing method according to (14) above.
(16) A method for stabilizing a polyphenol, wherein at least 1.5 parts by weight of ellagic acid or 5 parts by weight or more of punicalazine is allowed to coexist with 100 parts by weight of polyphenol.
本発明によれば、ポリフェノールの構造が変化することが常識であったpHや温度範囲において、ポリフェノールの安定化に有効なポリフェノール安定化剤を提供することができる。また、本発明によれば、上記安定化剤を、ポリフェノールと共存させることによって、加工製品に適用した場合にポリフェノール本来の生理機能を安定的に保持できる、ポリフェノール組成物を提供することができる。また上記組成物を使用して、飲食品、医薬品および化粧品などの様々なポリフェノール含有加工製品を提供することができる。本発明によるポリフェノール含有加工製品は、その製造時に熱水を用いた抽出処理およびレトルト殺菌処理が適用されても、また中性pH領域の液状製品形態で長期間保存されるものであってもよい。通常、そのような処理および保存の条件下では、エピ体カテキン類のエピマー化やプロシアニジン類の減少が生じることが知られている。しかし、本発明によれば、上記安定化剤によって、ポリフェノールは配合時の状態を安定的に維持することができる。 ADVANTAGE OF THE INVENTION According to this invention, the polyphenol stabilizer effective in stabilization of polyphenol can be provided in the pH and temperature range which was common sense that the structure of polyphenol changed. Moreover, according to this invention, the polyphenol composition which can hold | maintain polyphenol original physiological function stably when it applies to a processed product by making the said stabilizer coexist with polyphenol can be provided. Moreover, various polyphenol containing processed products, such as food-drinks, a pharmaceutical, and cosmetics, can be provided using the said composition. The polyphenol-containing processed product according to the present invention may be subjected to extraction treatment using hot water and retort sterilization treatment at the time of production, or may be stored for a long time in a liquid product form in a neutral pH region. . It is generally known that epimerization of epimeric catechins and reduction of procyanidins occur under such processing and storage conditions. However, according to the present invention, the above-described stabilizer can stably maintain the state of the polyphenol when blended.
本発明の開示は、2012年3月21日に出願された特願2012−63334号の主題に関し、これらの明細書の開示は全体的に参照のために本願明細書に組み込むものとする。 The disclosure of the present invention relates to the subject matter of Japanese Patent Application No. 2012-63334 filed on March 21, 2012, and the disclosure of these specifications is incorporated herein by reference in its entirety.
以下、本発明の詳細について説明する。
<安定化剤>
本発明の第1の態様は、ポリフェノールの安定化剤であって、エラグ酸およびプニカラジンの少なくとも一方を含むことを特徴とする。詳細は以下のとおりである。
(エラグ酸)
本発明において「エラグ酸」とは、以下の(化1)の構造式で示される物質をいう。Details of the present invention will be described below.
<Stabilizer>
According to a first aspect of the present invention, there is provided a polyphenol stabilizer comprising at least one of ellagic acid and punicalagin. Details are as follows.
(Elagic acid)
In the present invention, “ellagic acid” refers to a substance represented by the following structural formula (Formula 1).
(プニカラジン)
本発明において「プニカラジン」とは、以下の(化2)の構造式で示される物質をいう。プニカラジンは、ザクロなどの植物に含まれているエラジタンニンの一種である。エラジタンニンは、ヘキサヒドロキシジフェノイル基を有する加水分解型タンニン類である。エラジタンニンは、酸分解されるとエラグ酸を生成する。(Punicarazine)
In the present invention, “punicalazine” refers to a substance represented by the following structural formula (Formula 2). Punicarazine is a type of ellagitannin contained in plants such as pomegranate. Elazitannin is a hydrolyzable tannin having a hexahydroxydiphenoyl group. Elazitanin produces ellagic acid when it is acid-decomposed.
(安定化剤)
本発明の安定化剤は、有効成分として、上記エラグ酸および上記プニカラジンの少なくとも一方を含む。特に限定するものではないが、本発明の一実施形態において、上記安定化剤の全重量を基準として、上記エラグ酸の含有量が15重量%以上であることが好ましい。また、上記安定化剤の全重量を基準として、上記プニカラジンの含有量が30重量%以上であることが好ましい。上記安定化剤が、上記含有量の範囲でエラグ酸およびプニカラジンの少なくとも一方を含有する場合、上記安定化剤によって、ポリフェノールを安定化することが容易となる。また、本発明の安定化剤は、エラグ酸とプニカラジンとが混在していてもよく、その比率は特に限定されない。本発明の安定化剤は、上記各成分による効果に実質的な影響を及ぼさない限り、当業者に公知のその他の各種成分を含んでもよい。(Stabilizer)
The stabilizer of the present invention contains at least one of the ellagic acid and the punicalazine as an active ingredient. Although it does not specifically limit, In one Embodiment of this invention, it is preferable that content of the said ellagic acid is 15 weight% or more on the basis of the total weight of the said stabilizer. Moreover, it is preferable that content of the said punicalazine is 30 weight% or more on the basis of the total weight of the said stabilizer. When the stabilizer contains at least one of ellagic acid and punicalazine within the above content range, the stabilizer makes it easy to stabilize the polyphenol. Moreover, the stabilizer of this invention may be mixed with ellagic acid and punicalazine, and the ratio is not specifically limited. The stabilizer of the present invention may contain various other components known to those skilled in the art as long as the effects of the respective components are not substantially affected.
上記エラグ酸および上記プニカラジンは、果実などの多くの植物中に存在することが知られている。エラグ酸を豊富に含有する植物として、例えば、ザクロ、イチゴ、ラズベリー、クランベリー、ブドウ、クリ、クルミなどが挙げられる。本発明の安定化剤として、エラグ酸およびプニカラジンの少なくとも一方を含有する、植物の抽出物を使用してもよい。例えば、本発明の安定化剤として、ザクロ抽出物、イチゴ抽出物、ラズベリー抽出物、クランベリー抽出物、ブドウ抽出物、クリ抽出物、クルミ抽出物といった植物抽出物を使用してもよい。特に好ましくは、ザクロ抽出物が挙げられる。上記植物抽出物は、果汁または濃縮果汁であってよい。本発明の一実施形態では、安定化剤として、エラグ酸およびプニカラジンの少なくとも一方を含有する市販のザクロ抽出物を使用してもよい。例えば、本発明の安定化剤の一実施形態として、ナチュレックス製のザクロエキス(エラグ酸40%含有)、バイオアクティブズジャパン製のザクロエキス(エラグ酸90%以上含有)、アルジュナ製のザクロエキス(加水分解後のエラグ酸として15〜20%含有)、オムニカ製のPomella(登録商標)(プニカラジン30%以上含有)が挙げられる。 It is known that the ellagic acid and the punicalazine are present in many plants such as fruits. Examples of plants rich in ellagic acid include pomegranate, strawberry, raspberry, cranberry, grape, chestnut, and walnut. A plant extract containing at least one of ellagic acid and punicalazine may be used as the stabilizer of the present invention. For example, plant extracts such as pomegranate extract, strawberry extract, raspberry extract, cranberry extract, grape extract, chestnut extract, and walnut extract may be used as the stabilizer of the present invention. Particularly preferred is a pomegranate extract. The plant extract may be fruit juice or concentrated fruit juice. In one embodiment of the present invention, a commercially available pomegranate extract containing at least one of ellagic acid and punicalagin may be used as a stabilizer. For example, as an embodiment of the stabilizer of the present invention, pomegranate extract made by Naturex (containing 40% ellagic acid), pomegranate extract made by Bioactives Japan (containing 90% or more ellagic acid), pomegranate extract made by Arjuna (Containing 15 to 20% as ellagic acid after hydrolysis), Pomella (registered trademark) manufactured by Omnica (containing 30% or more of punicaladine).
本発明では、上記安定化剤として、上記植物抽出物などに加えて、エラグ酸および/またはプニカラジンの精製品を使用してもよい。上記精製品は、公知の方法に従って上記植物抽出物のエラグ酸またはプニカラジンの濃度を90〜100重量%まで高めたものであってよい。また、上記精製品は、試薬として市販されているエラグ酸またはプニカラジンであってもよい。すなわち、本発明では、エラグ酸精製品、プニカラジン精製品、および、好ましくはザクロ抽出物であるエラグ酸およびプニカラジンの少なくとも一方を含む植物抽出物、からなる群から選択される1以上を安定化剤として使用できる。 In the present invention, a refined product of ellagic acid and / or punicalagin may be used as the stabilizer in addition to the plant extract and the like. The purified product may be obtained by increasing the concentration of ellagic acid or punicaladine in the plant extract to 90 to 100% by weight according to a known method. The purified product may be ellagic acid or punicalagin, which is commercially available as a reagent. That is, in the present invention, one or more selected from the group consisting of purified ellagic acid products, purified punicalazine products, and a plant extract containing at least one of ellagic acid and punicalazine, preferably a pomegranate extract, is a stabilizer. Can be used as
本発明による安定化剤の一実施形態において、該安定化剤の全重量を基準として、エラグ酸の含有量は、15〜100重量%、好ましくは30〜100重量%、さらに好ましくは40〜100重量%、最も好ましくは90〜100重量%の範囲である。本発明による安定化剤の別の実施形態において、プニカラジンの含有量は、30〜100重量%、好ましくは40〜100重量%、さらに好ましくは80〜100重量%である。また、本発明による安定化剤の別の実施形態において、全安定化剤の重量を基準として、エラグ酸の含有量が15〜100重量%の場合は、プニカラジンは85〜0重量%の範囲の任意の割合で存在してよい。また、同様に、プニカラジンの含有量が30〜100重量%の場合は、エラグ酸は70〜0重量%の範囲の任意の割合で存在してよい。 In one embodiment of the stabilizer according to the invention, the content of ellagic acid, based on the total weight of the stabilizer, is 15 to 100% by weight, preferably 30 to 100% by weight, more preferably 40 to 100%. % By weight, most preferably in the range of 90-100% by weight. In another embodiment of the stabilizer according to the invention, the content of punicalagin is 30 to 100% by weight, preferably 40 to 100% by weight, more preferably 80 to 100% by weight. In another embodiment of the stabilizer according to the present invention, when the content of ellagic acid is 15 to 100% by weight, based on the weight of the total stabilizer, punicalazine is in the range of 85 to 0% by weight. It may be present in any proportion. Similarly, when the content of punicalagin is 30 to 100% by weight, ellagic acid may be present in any proportion in the range of 70 to 0% by weight.
本発明の安定化剤の形態は限定されず、液体、粉末、顆粒などのいずれであってもよい。 The form of the stabilizer of the present invention is not limited, and may be any of liquid, powder, granule and the like.
(ポリフェノール)
本発明において「ポリフェノール」とは、ベンゼン環に2つ以上のヒドロキシル基が存在する構造を有する化合物を意味する。しかし、上記ポリフェノールには、本発明で安定化剤として使用するエラグ酸およびプニカラジンは含まれない。ポリフェノールは、シンプルフェノール類、フラボノイド類、加水分解型タンニン類、縮合型タンニン類(プロアントシアニジン類)に分けられる。上記シンプルフェノールの一例として、ジヒドロキシル酸、ヒドロキシルカフェ酸誘導体類が挙げられる。上記フラボノイド類の一例として、フラボン類、フラボノール類、イソフラボン類、フラバン類、フラバノール(カテキン)類、フラバノン類、フラバノノール類、カルコン類、アントシアニジン類が挙げられる。特に、上記カテキン類の一例として、カテキン、エピカテキンが挙げられる。上記加水分解型タンニン類は上記シンプルフェノールの重合物であり、縮合型タンニン類(プロアントシアニジン類)は上記フラボノイド類の重合物である。特に、上記プロアントシアニジン類の一例として、プロシアニジン類が挙げられる。(Polyphenol)
In the present invention, “polyphenol” means a compound having a structure in which two or more hydroxyl groups are present in a benzene ring. However, the polyphenol does not include ellagic acid and punicalagin, which are used as stabilizers in the present invention. Polyphenols are classified into simple phenols, flavonoids, hydrolyzed tannins, and condensed tannins (proanthocyanidins). Examples of the simple phenol include dihydroxy acid and hydroxyl caffeic acid derivatives. Examples of the flavonoids include flavones, flavonols, isoflavones, flavans, flavanols (catechins), flavanones, flavonols, chalcones, and anthocyanidins. In particular, examples of the catechins include catechin and epicatechin. The hydrolyzable tannin is a polymer of the simple phenol, and the condensed tannin (proanthocyanidins) is a polymer of the flavonoids. In particular, procyanidins are mentioned as an example of the proanthocyanidins.
特に限定するものではないが、本発明の一実施形態において、上記ポリフェノールは、好ましくはプロシアニジン類およびカテキン類からなる群から選択される少なくとも1種である。より具体的には、カカオポリフェノール、および茶ポリフェノールが好ましく、カカオポリフェノールが特に好ましい。上記カカオポリフェノールは、カカオ原料から得られるプロシアニジン類である。一方、上記茶ポリフェノールは、茶原料から得られるカテキン類である。 Although not particularly limited, in one embodiment of the present invention, the polyphenol is preferably at least one selected from the group consisting of procyanidins and catechins. More specifically, cocoa polyphenol and tea polyphenol are preferable, and cocoa polyphenol is particularly preferable. The cocoa polyphenols are procyanidins obtained from cocoa raw materials. On the other hand, the tea polyphenols are catechins obtained from tea raw materials.
(ポリフェノールの安定化)
本発明における「ポリフェノールの安定化」とは、pHや熱によって生じる上記ポリフェノールの構造変化を抑制することを意味する。より具体的には、pH4.0以上で、より詳細にはpH4.0以上かつ37℃以上の条件が適用される、保存、加熱、及び殺菌といった加工条件に対して、本発明による安定化剤がポリフェノールの構造変化を抑制し、ポリフェノールが初期の状態を維持できるようにすることを意味する。上記構造変化は、例えば、エピ体カテキン類についてはエピマー比率の変化、およびプロシアニジン類については検出量の低減によって確認される。本発明の安定化剤の作用メカニズムの詳細は不明であるが、上記安定化剤がエピマー化抑制剤として作用する場合は、上記安定化剤が、上記ポリフェノール化合物が初期の立体配座を維持するように作用していると推定される。(Stabilization of polyphenols)
“Stabilization of polyphenol” in the present invention means to suppress the structural change of the polyphenol caused by pH or heat. More specifically, the stabilizer according to the present invention for processing conditions such as storage, heating, and sterilization to which conditions of pH 4.0 or higher, more specifically, pH 4.0 or higher and 37 ° C. or higher are applied. Means that the structural change of the polyphenol is suppressed and the polyphenol can maintain the initial state. The structural change is confirmed by, for example, a change in the epimer ratio for epimeric catechins and a decrease in the detection amount for procyanidins. Although the details of the action mechanism of the stabilizer of the present invention are not clear, when the stabilizer acts as an epimerization inhibitor, the stabilizer maintains the initial conformation of the polyphenol compound. It is estimated that
(カテキン類)
本発明において記載する上記「カテキン類」とは、エピ体カテキン類と非エピ体カテキン類との総称である。上記「エピ体カテキン類」の具体例として、エピカテキン、エピガロカテキン、エピカテキンガレート、およびエピガロカテキンガレートが挙げられる。また、「非エピ体カテキン類」の具体例として、カテキン、ガロカテキン、カテキンガレート、およびガロカテキンガレートが挙げられる。(Catechin)
The above “catechins” described in the present invention is a generic term for epi-catechins and non-epi-catechins. Specific examples of the “epimeric catechins” include epicatechin, epigallocatechin, epicatechin gallate, and epigallocatechin gallate. Specific examples of “non-epimeric catechins” include catechin, gallocatechin, catechin gallate, and gallocatechin gallate.
(エピ体カテキン類のエピマー化抑制)
上記エピ体カテキン類は、pH4.0以上の条件において、エピマー化が起こり、非エピ体カテキン類に変化することが知られている。例えば、pH4.0以上の条件において、カカオポリフェノールなどに含まれる(−)−エピカテキンは、(−)−カテキンにエピマー化する。同様に、茶抽出物に含まれる(−)−エピガロカテキンガレートは、(−)−ガロカテキンガレートにエピマー化する。さらに、エピガロカテキンはガロカテキンに、エピカテキンガレートはカテキンガレートに、それぞれエピマー化する。これに対し、本発明の安定化剤を上記エピ体カテキン類と共存させることによって、上記エピマー化を効果的に抑制することができる。(Inhibition of epimerization of epi-catechins)
The epimeric catechins are known to undergo epimerization under conditions of pH 4.0 or higher and change to non-epimeric catechins. For example, (-)-epicatechin contained in cacao polyphenol and the like is epimerized to (-)-catechin under the condition of pH 4.0 or higher. Similarly, (−)-epigallocatechin gallate contained in the tea extract is epimerized to (−)-gallocatechin gallate. Furthermore, epigallocatechin is epimerized to gallocatechin, and epicatechin gallate is epimerized to catechin gallate. On the other hand, the epimerization can be effectively suppressed by allowing the stabilizer of the present invention to coexist with the epimeric catechins.
特に限定するものではないが、本発明の一実施形態では、安定化剤の全重量を基準として、エラグ酸を15重量%以上含有する安定化剤を使用することによって、カカオポリフェノールのエピマー化抑制、および茶ポリフェノールのエピマー化抑制のいずれにおいても、良好な結果が得られる。また、安定化剤の重量を基準として、プニカラジンを30重量%以上含有する安定化剤を使用することによって、カカオポリフェノールのエピマー化抑制において、良好な結果が得られる。 Although not particularly limited, in one embodiment of the present invention, the suppression of epimerization of cocoa polyphenols by using a stabilizer containing 15% by weight or more of ellagic acid, based on the total weight of the stabilizer. , And the suppression of epimerization of tea polyphenols gives good results. Moreover, a favorable result is obtained in the epimerization suppression of cacao polyphenol by using the stabilizer containing 30% by weight or more of punicalazine based on the weight of the stabilizer.
(プロシアニジン類)
本発明において「プロシアニジン」とは、フラボノイド類の基本骨格が重合した構造を持つ物質をいう。プロシアニジンは、カカオ、ブドウ種子、ブドウ皮、リンゴ、松の樹皮などに含まれる。カカオポリフェノールに含まれている代表的なプロシアニジンとしては、プロシアニジンB2、プロシアニジンB5、プロシアニジンC1、シンナムタンニンA2などが挙げられる。本発明において記載する「プロシアニジン類」は、エピカテキン、カテキン、プロシアニジンB2、プロシアニジンB5、プロシアニジンC1、シンナムタンニンA2から成る計6成分を含む。(Procyanidins)
In the present invention, “procyanidin” refers to a substance having a structure in which the basic skeleton of flavonoids is polymerized. Procyanidins are contained in cacao, grape seed, grape skin, apple, pine bark, and the like. Typical procyanidins contained in cocoa polyphenols include procyanidin B2, procyanidin B5, procyanidin C1, cinnamtannin A2, and the like. The “procyanidins” described in the present invention include a total of six components consisting of epicatechin, catechin, procyanidin B2, procyanidin B5, procyanidin C1, and cinnamtannin A2.
(プロシアニジン類の低減抑制)
上記プロシアニジン類は、pH4.0以上の条件下、より詳しくはpH4.0以上、かつ37℃以上の温度で加熱や保存されることによって減少する。しかし、本発明の安定化剤を上記プロシアニジン類と共存させることによって、上記プロシアニジン類の低減を効果的に抑制することができる。(Reduce the reduction of procyanidins)
The procyanidins are reduced by being heated or stored under conditions of pH 4.0 or higher, more specifically at a temperature of pH 4.0 or higher and 37 ° C. or higher. However, the coexistence of the stabilizer of the present invention with the procyanidins can effectively suppress the reduction of the procyanidins.
<安定化剤を含有する組成物>
本発明の第2の態様は、ポリフェノールと、エラグ酸およびプニカラジンの少なくとも一方を含む安定化剤とを含む組成物に関する。すなわち、本発明のポリフェノール組成物は、ポリフェノールを含有する素材とともに、本発明の第1の態様に関する安定化剤を含むことを特徴とする。本発明の一実施形態において、上記安定化剤は、エラグ酸およびプニカラジンの少なくとも一方を含む植物抽出物であってよく、好ましくはザクロ抽出物であってよい。また、別の実施形態において、上記安定化剤は、エラグ酸精製品、およびプニカラジン精製品であってもよい。<Composition containing stabilizer>
The second aspect of the present invention relates to a composition comprising polyphenol and a stabilizer containing at least one of ellagic acid and punicalazine. That is, the polyphenol composition of the present invention is characterized by containing a stabilizer relating to the first aspect of the present invention together with a material containing polyphenol. In one embodiment of the present invention, the stabilizer may be a plant extract containing at least one of ellagic acid and punicalagin, preferably a pomegranate extract. In another embodiment, the stabilizer may be a refined ellagic acid product and a refined punicalazine product.
本発明による組成物において、上記安定化剤の使用量は特に限定されない。しかし、一実施形態として、ポリフェノール100重量部に対して、少なくとも、上記エラグ酸が1.5重量部以上、または上記プニカラジンが5重量部以上となる割合で、上記安定化剤を配合することが好ましい。後述の実施例からも明らかなように、上記割合で安定化剤を使用することによって、組成物中のポリフェノールを安定に維持することが容易となる。上記ポリフェノールは、好ましくは、プロシアニジン類およびカテキン類からなる群から選択される1種である。より具体的には、カカオポリフェノールおよび/または茶ポリフェノールが好ましく、カカオポリフェノールが特に好ましい。また、本発明による組成物は、ポリフェノールの安定化効果に実質的な影響を及ぼさない限り、当業者に公知のその他の各種成分を含んでよい。本発明によるポリフェノール組成物は、食品添加物などの加工製品の原料として、またはそれ自体を食品などの加工製品として使用することができる。 In the composition according to the present invention, the amount of the stabilizer used is not particularly limited. However, as an embodiment, the stabilizer may be blended at a ratio of at least 1.5 parts by weight of the ellagic acid or 5 parts by weight or more of the punicalazine with respect to 100 parts by weight of the polyphenol. preferable. As will be apparent from Examples described later, the use of the stabilizer in the above ratio makes it easy to stably maintain the polyphenol in the composition. The polyphenol is preferably one selected from the group consisting of procyanidins and catechins. More specifically, cocoa polyphenol and / or tea polyphenol are preferred, and cocoa polyphenol is particularly preferred. In addition, the composition according to the present invention may contain various other components known to those skilled in the art as long as they do not substantially affect the stabilizing effect of the polyphenol. The polyphenol composition according to the present invention can be used as a raw material for processed products such as food additives or as a processed product such as foods.
本発明の組成物によれば、pHが4.0以上の加工製品や37℃以上の温度で加熱処理を施す加工製品に、それら組成物を配合した場合であっても、ポリフェノール本来の生理機能を加工製品に付与することができる。また、上記組成物によれば、上記加工前のポリフェノールの状態を加工後や保存後においても安定的に維持することができる。 According to the composition of the present invention, even if the composition is blended with a processed product having a pH of 4.0 or higher or a processed product subjected to heat treatment at a temperature of 37 ° C. or higher, the physiological functions inherent to polyphenols Can be added to the processed product. Moreover, according to the said composition, the state of the polyphenol before the said process can be maintained stably after a process and a preservation | save.
<ポリフェノール含有加工製品>
本発明の第3の態様は、ポリフェノールと、エラグ酸およびプニカラジンの少なくとも一方を含む安定化剤とを含む、ポリフェノール含有加工製品に関する。上記加工製品の具体例として、飲食品、医薬品、化粧品が挙げられる。特に限定するものではないが、本発明の一実施形態において、上記加工製品は、好ましくは飲食品である。なかでも、飲料が好ましく、容器詰の飲料が特に好ましい。<Polyphenol-containing processed products>
The third aspect of the present invention relates to a polyphenol-containing processed product comprising polyphenol and a stabilizer containing at least one of ellagic acid and punicalazine. Specific examples of the processed product include food and drink, pharmaceuticals, and cosmetics. Although not particularly limited, in one embodiment of the present invention, the processed product is preferably a food or drink. Among these, beverages are preferable, and container-packed beverages are particularly preferable.
上記加工製品は、本発明の第2の態様として先に記載したポリフェノール組成物を原料とするか、又は原料の一部として用いて構成することができる。すなわち、本発明による加工製品の実施形態では、所望とする加工製品の形態に応じて、上記組成物が追加の成分を含むことを意図している。このような実施形態において、上記安定化剤の使用量は特に限定されない。しかし、本発明の一実施形態において、ポリフェノール100重量部に対して、少なくとも、上記エラグ酸が1.5重量部以上、または上記プニカラジンが5重量部以上となる割合で、上記安定化剤を配合することが好ましい。このような割合で上記安定化剤を使用することによって、加工製品中のポリフェノールを安定に維持することが容易となる。一方、上記安定化剤の配合量の上限は、特に限定されるものでなく、味、香り、およびコストを考慮して設定すればよい。例えば、加工製品に含まれるポリフェノール100重量部に対して、エラグ酸を1.5〜350重量部、および/またはプニカラジンを5〜350重量部となる割合で加工製品に配合することができる。 The processed product can be constituted by using the polyphenol composition described above as the second aspect of the present invention as a raw material or as a part of the raw material. That is, in the embodiment of the processed product according to the present invention, the composition is intended to include additional components depending on the desired form of the processed product. In such an embodiment, the amount of the stabilizer used is not particularly limited. However, in one embodiment of the present invention, the stabilizer is blended at a ratio of at least 1.5 parts by weight of the ellagic acid or 5 parts by weight or more of the punicalazine with respect to 100 parts by weight of the polyphenol. It is preferable to do. By using the stabilizer in such a ratio, it becomes easy to stably maintain the polyphenol in the processed product. On the other hand, the upper limit of the amount of the stabilizer is not particularly limited, and may be set in consideration of taste, aroma, and cost. For example, it can be blended in the processed product at a ratio of 1.5 to 350 parts by weight of ellagic acid and / or 5 to 350 parts by weight of punicalazine with respect to 100 parts by weight of polyphenol contained in the processed product.
(飲食品)
以下、本発明による加工製品の一例として、飲食品について具体的に説明する。上記飲食品は、ポリフェノールと、上記安定化剤と、その他、当業者に周知の成分とを含む。飲食品の具体例として、飲料、ココア、コーヒー、ガム、グミ、ゼリー、羊かん、シャーベット、乳製品が挙げられる。上記飲食品の形態は特に限定されるものではないが、特に、水分含量が高い食品や、容器詰めされた後に加熱殺菌工程を有する飲料や食品が好ましい。上記食品の水分含量は10重量%以上であることが好ましい。(Food)
Hereinafter, as an example of the processed product according to the present invention, a food and drink will be specifically described. The said food / beverage products contain a polyphenol, the said stabilizer, and other components well-known to those skilled in the art. Specific examples of the food and drink include beverages, cocoa, coffee, gum, gummi, jelly, sheepskin, sherbet, and dairy products. Although the form of the said food / beverage products is not specifically limited, The drink and food which have a heat sterilization process after filling with a high moisture content and a container are especially preferable. The water content of the food is preferably 10% by weight or more.
上記飲食品のpHは限定されない。しかし、pH4.0以上においてエピ体カテキン類のエピマー化やプロシアニジン類の低減といった望ましくない現象が起こることが知られている。また、加熱によって、それらの現象が促進されることが知られている。しかし、本発明によれば、加工製品中の上記安定化剤によって、上記望ましくない現象を効果的に抑制することが可能である。そのため、本発明による加工製品のpHは4.0以上であってよい。このような上記安定化剤による安定化効果の観点から、上記飲食品のpHは、好ましくは4.0〜8.0、より好ましくは4.0〜7.5、さらに好ましくは5.5〜6.5の範囲である。 The pH of the said food / beverage products is not limited. However, it is known that undesirable phenomena such as epimerization of epimeric catechins and reduction of procyanidins occur at pH 4.0 or higher. It is also known that these phenomena are promoted by heating. However, according to the present invention, the undesirable phenomenon can be effectively suppressed by the stabilizer in the processed product. Therefore, the pH of the processed product according to the present invention may be 4.0 or higher. From the viewpoint of the stabilizing effect of the stabilizer, the pH of the food or drink is preferably 4.0 to 8.0, more preferably 4.0 to 7.5, and even more preferably 5.5. The range is 6.5.
さらに、上記飲食品は、上記範囲のpHを有し、かつ37℃以上の温度で加熱される工程を経て製造されたものであってよい。特に、上記飲食品は、120℃以上の温度で加熱殺菌される工程を経て製造されたものであってよい。なお、上記「37℃以上の温度で加熱される工程」とは、飲食品の製造時だけでなく、飲食品を流通する際に37℃以上で保管および販売する工程も含む。 Furthermore, the said food / beverage products may be manufactured through the process of having the pH of the said range, and being heated at the temperature of 37 degreeC or more. In particular, the food and drink may be manufactured through a process that is heat sterilized at a temperature of 120 ° C. or higher. In addition, the above-mentioned “process heated at a temperature of 37 ° C. or higher” includes not only the production of food and drink but also the process of storing and selling at 37 ° C. or higher when distributing the food and drink.
本発明において、上記飲食品中のポリフェノール含有量は、特に限定されない。通常、飲食品中のポリフェノール含有量は、目的とする生理機能の効果が発揮できるように設定される。したがって、本発明では、飲食品中のポリフェノール含有量を設定した後に、上記安定化剤の使用量を決定すればよい。例えば、上記安定化剤は、上記ポリフェノール含有量100重量部に対して、少なくとも、エラグ酸1.5重量部以上、またはプニカラジン5重量部以上となる割合で配合すればよい。 In the present invention, the polyphenol content in the food or drink is not particularly limited. Usually, the polyphenol content in food and drink is set so that the effect of the target physiological function can be exhibited. Therefore, in this invention, after setting polyphenol content in food-drinks, what is necessary is just to determine the usage-amount of the said stabilizer. For example, the stabilizer may be blended at a ratio of at least 1.5 parts by weight of ellagic acid or 5 parts by weight or more of punicalazine with respect to 100 parts by weight of the polyphenol.
上記飲食品は、例えば、以下(i)〜(iii)の方法に従って製造することができる。(i)飲料の調製:28.5mg〜100mgのポリフェノールと、0.5mg〜100mgの安定化剤と、必要に応じて追加される当業者に公知の成分を配合し、100mlの飲料を調製する。ここで、上記ポリフェノールは、例えば、プロシアニジン類、カテキン類であってよい。また上記安定化剤は、例えば、エラグ酸精製品、プニカラジン精製品、又は少なくとも、上記安定化剤の全重量を基準として15重量%以上のエラグ酸および30重量%以上のプニカラジンの少なくとも一方を含有するザクロ抽出物、のいずれかであってよい。また上記公知の成分は、一般に飲食品の原材料や添加物として使用される素材でよい。例えば、上記飲料品は、水、糖類、糖アルコール類、澱粉及び加工澱粉、食物繊維、牛乳、加工乳、豆乳、果汁、野菜汁、果実・野菜及びその加工品、タンパク質、ペプチド、アミノ酸類、動物及び植物生薬エキス、天然由来高分子(コラーゲン、ヒアルロン酸、コンドロイチンなど)、ビタミン類、ミネラル類、増粘剤、乳化剤、保存料、着色料、香料などを含んでもよい。
(ii)飲料のpH調整:上記のように調製した飲料のpHを5.5〜6.5の範囲に調整する。調整時に、必要に応じて、有機酸及びその塩類、酸味料、又はpH調整剤を使用してもよい。より詳細には、例えば、リンゴ酸及びその塩類、クエン酸及びその塩類、酒石酸及びその塩類、乳酸及びその塩類、リン酸及びその塩類、炭酸カリウム、炭酸水素ナトリウム、炭酸ナトリウムなどを、上記飲料に加えてもよい。
(iii)飲料の加熱殺菌: pHを調整した上記飲料を密閉容器に封入し、例えば、121℃の温度条件で10分間にわたって加熱殺菌する。The said food-drinks can be manufactured according to the method of (i)-(iii) below, for example. (I) Beverage preparation: 28.5 mg to 100 mg of polyphenol, 0.5 mg to 100 mg of stabilizer, and ingredients known to those skilled in the art added as needed, to prepare 100 ml of beverage . Here, the polyphenol may be, for example, procyanidins or catechins. The stabilizer contains, for example, a refined ellagic acid product, a refined punicalazine product, or at least one of ellagic acid of 15% by weight or more and 30% by weight or more of punicalazine based on the total weight of the stabilizer. Pomegranate extract. Moreover, the said well-known component may be the raw material generally used as a raw material or additive of food-drinks. For example, the beverages include water, sugars, sugar alcohols, starch and processed starch, dietary fiber, milk, processed milk, soy milk, fruit juice, vegetable juice, fruits / vegetables and processed products thereof, proteins, peptides, amino acids, It may contain animal and plant herbal extracts, naturally derived polymers (collagen, hyaluronic acid, chondroitin, etc.), vitamins, minerals, thickeners, emulsifiers, preservatives, coloring agents, flavors and the like.
(Ii) Adjusting the pH of the beverage: The pH of the beverage prepared as described above is adjusted to a range of 5.5 to 6.5. At the time of adjustment, an organic acid and salts thereof, a sour agent, or a pH adjuster may be used as necessary. More specifically, for example, malic acid and its salts, citric acid and its salts, tartaric acid and its salts, lactic acid and its salts, phosphoric acid and its salts, potassium carbonate, sodium bicarbonate, sodium carbonate and the like are added to the beverage. May be added.
(iii) Heat sterilization of beverage: The beverage whose pH has been adjusted is sealed in an airtight container and, for example, heat sterilized at 121 ° C. for 10 minutes.
(その他の加工製品)
以上、本発明による加工製品の実施形態について、飲食品を例にして説明した。しかし、本発明によれば、ポリフェノールと、エラグ酸およびプニカラジンの少なくとも一方を含む安定化剤とを含む組成物を使用して、医薬品(医薬部外品も含む)または化粧品といったその他の加工製品を構成することも可能である。加工製品として医薬品を構成する場合、上記医薬品は、上記成分に加えて、当業者に周知の成分も含む。例えば、本発明の一実施形態において、上記医薬品は、ポリフェノールと、上記安定化剤と、医薬品薬効成分と、薬事法上の医薬品や医薬部外品に該当しない医薬品製剤に含まれる有効成分以外の物質を含んでよい。上記物質の具体例として、賦形剤、崩壊剤、結合剤、流動化剤、矯味剤、香料、着色剤、甘味剤、溶剤、油脂、増粘剤、界面活性剤、ゲル化剤、安定剤、保存剤、緩衝剤、懸濁化剤、粘稠剤などが挙げられる。医薬品の形態は、特に限定されない。上記飲食品と同様の観点から、上記医薬品のpHは4.0以上であってよい。上記安定化剤による安定化効果の観点から、上記医薬品のpHは、好ましくは4.0〜8.0、より好ましくはpH4.0〜7.5、より好ましくはpH5.5〜6.5の範囲である。また、上記医薬品は、37℃以上で加熱される工程を経て製造されたものであってよい。(Other processed products)
As mentioned above, embodiment of the processed product by this invention was demonstrated taking food / beverage products as an example. However, according to the present invention, other processed products such as pharmaceuticals (including quasi-drugs) or cosmetics are prepared using a composition comprising polyphenol and a stabilizer containing at least one of ellagic acid and punicalazine. It is also possible to configure. In the case where a pharmaceutical product is constituted as a processed product, the pharmaceutical product includes components well known to those skilled in the art in addition to the above components. For example, in one embodiment of the present invention, the pharmaceutical product is other than polyphenol, the stabilizer, a pharmaceutical medicinal ingredient, and an active ingredient contained in a pharmaceutical preparation that does not fall under the Pharmaceutical Affairs Law or a quasi-drug. Substances may be included. Specific examples of the above substances include excipients, disintegrants, binders, fluidizing agents, flavoring agents, flavoring agents, coloring agents, sweetening agents, solvents, fats and oils, thickeners, surfactants, gelling agents, and stabilizers. , Preservatives, buffers, suspending agents, thickeners and the like. The form of the pharmaceutical is not particularly limited. From the same viewpoint as the food and drink, the pharmaceutical product may have a pH of 4.0 or more. From the viewpoint of the stabilizing effect of the stabilizer, the pH of the pharmaceutical is preferably 4.0 to 8.0, more preferably pH 4.0 to 7.5, and more preferably pH 5.5 to 6.5. It is a range. Moreover, the said pharmaceutical may be manufactured through the process heated at 37 degreeC or more.
一方、加工製品として化粧品を構成する場合、上記化粧品は、上記成分に加えて、当業者に周知の成分も含む。例えば、本発明の一実施形態において、上記化粧品は、ポリフェノールと、上記安定化剤と、化粧品として使用が許可される成分とを含む。上記成分として、例えば、香料、金属、セラミックス又は賦形剤、崩壊剤、結合剤、流動化剤、滑沢剤、着色剤、溶剤、油脂、界面活性剤、増粘剤、ゲル化剤などが挙げられる。化粧品の形態は、特に限定されない。上記飲食品と同様の観点から、上記化粧品のpHは4.0以上であってよい。上記安定化剤による安定化効果の観点から、上記化粧品のpHは、好ましくは4.0〜8.0、より好ましくは4.0〜7.5、より好ましくは5.5〜6.5の範囲である。また、上記化粧品は、37℃以上で加熱される工程を経て製造されたものであってよい。 On the other hand, when a cosmetic is constituted as a processed product, the cosmetic includes components well known to those skilled in the art in addition to the components described above. For example, in one embodiment of the present invention, the cosmetic includes polyphenol, the stabilizer, and a component permitted to be used as a cosmetic. Examples of the components include fragrances, metals, ceramics or excipients, disintegrants, binders, fluidizers, lubricants, colorants, solvents, fats and oils, surfactants, thickeners, gelling agents, and the like. Can be mentioned. The form of the cosmetic is not particularly limited. From the same viewpoint as the food and drink, the cosmetic product may have a pH of 4.0 or more. From the viewpoint of the stabilizing effect of the stabilizer, the cosmetic has a pH of preferably 4.0 to 8.0, more preferably 4.0 to 7.5, and more preferably 5.5 to 6.5. It is a range. The cosmetic may be manufactured through a process of heating at 37 ° C. or higher.
<ポリフェノール含有加工製品の製造方法>
本発明の第4の態様は、ポリフェノール含有加工製品の製造方法に関する。上記製造方法は、(a)ポリフェノールと、エラグ酸およびプニカラジンの少なくとも一方を含む安定化剤とを含む組成物を調製する工程と、(b)上記組成物を用いて、ポリフェノール含有加工製品を調製する工程と、(c)上記ポリフェノール含有加工製品を37℃以上の温度に加熱する工程とを含む。上記製造方法において、上記加工製品は、本発明の第3の態様と同様であってよい。本発明による製造方法の一実施形態として、上記工程(a)において、ポリフェノール100重量部に対して、少なくとも、エラグ酸が1.5重量部以上またはプニカラジンが5重量部以上となる割合で上記安定化剤を共存させることが好ましい。上記ポリフェノール含有加工製品のpHは、4.0〜8.0の範囲であってよい。また、上記ポリフェノールは、プロシアニジン類およびカテキン類の少なくとも一方であることが好ましい。<Method for producing polyphenol-containing processed product>
The 4th aspect of this invention is related with the manufacturing method of a polyphenol containing processed product. The manufacturing method includes (a) preparing a composition containing polyphenol and a stabilizer containing at least one of ellagic acid and punicalazine, and (b) preparing a polyphenol-containing processed product using the composition. And (c) heating the polyphenol-containing processed product to a temperature of 37 ° C. or higher. In the manufacturing method, the processed product may be the same as in the third aspect of the present invention. As one embodiment of the production method according to the present invention, in the step (a), the above-mentioned stability is achieved at a ratio of at least 1.5 parts by weight of ellagic acid or 5 parts by weight or more of punicalazine with respect to 100 parts by weight of polyphenol. It is preferable to coexist an agent. The polyphenol-containing processed product may have a pH in the range of 4.0 to 8.0. The polyphenol is preferably at least one of procyanidins and catechins.
<ポリフェノール安定化方法>
本発明の第5の態様は、ポリフェノール100重量部に対して、少なくとも、エラグ酸を1.5重量部以上、又はプニカラジンを5重量部以上の割合で共存させることを特徴とする、ポリフェノールの安定化方法に関する。上記ポリフェノール、上記エラグ酸、上記プニカラジンは、先に説明したとおりである。先に説明したように、pH4.0以上においてエピ体カテキン類のエピマー化やプロシアニジン類の低減といった望ましくない現象がみられる。そのため、本発明の安定化方法を効果的に実施する観点から、上記安定化は、pH4.0以上の条件下で実施されることが好ましい。上記安定化におけるpHの条件は、より好ましくは4.0〜8.0、さらにより好ましくは4.0〜7.5、最も好ましくは5.5〜6.5の範囲である。<Polyphenol stabilization method>
According to a fifth aspect of the present invention, at least 1.5 parts by weight of ellagic acid or 5 parts by weight or more of punicalazine is coexistent with 100 parts by weight of polyphenol. It relates to the conversion method. The polyphenol, the ellagic acid, and the punicalazine are as described above. As described above, undesirable phenomena such as epimerization of epimeric catechins and reduction of procyanidins are observed at pH 4.0 or higher. Therefore, from the viewpoint of effectively implementing the stabilization method of the present invention, the stabilization is preferably performed under conditions of pH 4.0 or higher. The pH condition for the stabilization is more preferably in the range of 4.0 to 8.0, even more preferably 4.0 to 7.5, and most preferably 5.5 to 6.5.
上記pHの条件下において、さらに加熱が適用されることによって、上記ポリフェノールの構造変化は促進される。そのため、本発明の安定化方法をより効果的に実施する観点から、上記安定化は、上記pH条件に加えて、さらに37℃以上で加熱される条件下、より好ましくは120℃以上で加熱される条件下で、上記安定化を実施することが好ましい。 When the heating is further applied under the above pH condition, the structural change of the polyphenol is promoted. Therefore, from the viewpoint of more effectively carrying out the stabilization method of the present invention, the stabilization is further performed at a temperature of 37 ° C. or higher, more preferably at 120 ° C. or higher, in addition to the pH condition. It is preferable to carry out the stabilization under the following conditions.
本発明の別の態様は、本発明の第3の態様である製造方法によって製造された、飲食品、医薬品、および化粧品からなる群から選択されるポリフェノール含有加工製品に関する。また、さらに、別の態様は、エラグ酸およびプニカラジンの少なくとも一方のポリフェノール安定化剤としての使用に関する。 Another aspect of the present invention relates to a polyphenol-containing processed product selected from the group consisting of foods and drinks, pharmaceuticals, and cosmetics, manufactured by the manufacturing method according to the third aspect of the present invention. Yet another aspect relates to the use of at least one of ellagic acid and punicalazine as a polyphenol stabilizer.
以上、本発明について、代表的な態様に基づき説明した。しかし、本願発明は例示の態様に限定されるものではなく、本発明の要旨を逸脱しない範囲において種々変更可能であることは言うまでもない。 In the above, this invention was demonstrated based on the typical aspect. However, it is needless to say that the present invention is not limited to the illustrated embodiments and can be variously modified without departing from the gist of the present invention.
以下、実施例を挙げて本発明を具体的に説明する。しかし、本発明の実施形態は以下の実施例に限定されるものではない。 Hereinafter, the present invention will be specifically described with reference to examples. However, embodiments of the present invention are not limited to the following examples.
実施例および比較例において、各成分の定量分析は、以下のようにして実施した。
(エラグ酸、プニカラジン)
エラグ酸およびプニカラジンの定量分析は、非特許文献1(J.Agric.Food Chem.,Vol.55 No.23,9559-9570,2007)に記載された方法を参照して実施した。In Examples and Comparative Examples, quantitative analysis of each component was performed as follows.
(Elagic acid, punicaladine)
Quantitative analysis of ellagic acid and punicalazine was carried out with reference to the method described in Non-Patent Document 1 (J. Agric. Food Chem., Vol. 55 No. 23, 9559-9570, 2007).
(エピ体カテキン類、非エピ体カテキン類)
エピ体カテキン類(エピカテキン、エピガロカテキン、エピカテキンガレート、エピガロカテキンガレート)、および非エピ体カテキン類(カテキン、ガロカテキン、カテキンガレート、ガロカテキンガレート)の定量分析は、非特許文献2(Biosci.Biotechnol.Biochem.,Vol.64 No.12,2581-2587, 2000)に記載された方法を参照して実施した。(Epi catechins, non-epi catechins)
Quantitative analysis of epicatechins (epicatechin, epigallocatechin, epicatechin gallate, epigallocatechin gallate) and non-epimeric catechins (catechin, gallocatechin, catechin gallate, gallocatechin gallate) is described in Non-Patent Document 2 ( Biosci. Biotechnol. Biochem., Vol. 64 No. 12, 2581-2587, 2000).
(プロシアニジン類)
プロシアニジン類(カテキン、エピカテキン、プロシアニジンB2、プロシアニジンB5、プロシアニジンC1、シンナムタンニンA2)の定量分析は、非特許文献3(J.Agric.Food Chem.,Vol.45 No.12,4624-4628,1997)を参照して実施した。(Procyanidins)
Quantitative analysis of procyanidins (catechin, epicatechin, procyanidin B2, procyanidin B5, procyanidin C1 and cinnamtannin A2) is described in Non-Patent Document 3 (J. Agric. Food Chem., Vol. 45 No. 12, 4624-4628). , 1997).
実施例および比較例で使用したカカオポリフェノールは、以下のようにして調製した
(カカオポリフェノールの調製方法)
産地で乾燥を終えたカカオ豆を磨砕し、さらに圧搾によって脱脂した後、20倍量の50%エタノール水溶液を加えて、50℃で30分間攪拌した。次いで、不要成分を遠心分離で除去することにより、カカオ粗抽出液を得た。
次に、予め水素イオン置換処理を施した陽イオン交換樹脂(アンバーライト(登録商標)IR−120B)を充填したカラムに、上記カカオ粗抽出液をSV=5の流速で通液した。続いて、カラムに25℃の脱イオン水を通液して、溶出液を分取した。上記溶出液を凍結乾燥することによってカカオポリフェノール(プロシアニジン類含量約16重量%)を得た。The cocoa polyphenol used in Examples and Comparative Examples was prepared as follows (Method for preparing cocoa polyphenol).
The cocoa beans that had been dried in the production area were ground and degreased by pressing, and then 20 times the amount of 50% aqueous ethanol solution was added, followed by stirring at 50 ° C. for 30 minutes. Subsequently, the cacao crude extract was obtained by removing unnecessary components by centrifugation.
Next, the crude cacao extract was passed at a flow rate of SV = 5 through a column packed with a cation exchange resin (Amberlite (registered trademark) IR-120B) that had been previously subjected to hydrogen ion replacement treatment. Subsequently, 25 ° C. deionized water was passed through the column to separate the eluate. The eluate was freeze-dried to obtain cocoa polyphenol (procyanidins content of about 16% by weight).
(実施例1)
各種植物抽出物によるポリフェノール安定化効果(殺菌前後)Example 1
Polyphenol stabilization effect by various plant extracts (before and after sterilization)
(i)飲料の調製
上記方法に従って得られたカカオポリフェノール625mg(プロシアニジン類含量100mg)と、表1に示した植物抽出物(または試薬)350mgに、水を加えて350mlの溶液を調製した。上記溶液を、0.1M塩酸または0.1M水酸化ナトリウムを用いてpH5.5に調整して飲料とした。(I) Preparation of beverage Water was added to 625 mg of cocoa polyphenol (
(ii)殺菌
上記飲料を密閉容器に封入した後、オートクレーブで121℃、10分間加熱殺菌した。(Ii) Sterilization After the beverage was sealed in a sealed container, it was sterilized by heating at 121 ° C. for 10 minutes in an autoclave.
(iii)ポリフェノール分析
上記(i)で得た加熱殺菌前の飲料、および上記(ii)で得た加熱殺菌後の各飲料について、上記定量方法に従ってプロシアニジン類をそれぞれ定量した。(Iii) Polyphenol Analysis The procyanidins were quantified in accordance with the above quantification method for the beverage before heat sterilization obtained in (i) above and each beverage after heat sterilization obtained in (ii) above.
(iv)プロシアニジン類低減抑制効果の評価
プロシアニジン類残存率を、上記(iii)で得たプロシアニジン類の各成分量を用いて、以下のように算出した。(Iv) Evaluation of procyanidins reduction inhibitory effect The procyanidins remaining rate was calculated as follows using the amount of each component of procyanidins obtained in (iii) above.
プロシアニジン類残存率(%)=(加熱殺菌後の飲料中のプロシアニジン類成分量の総和/加熱殺菌前の飲料中のプロシアニジン類成分量の総和)*100 Procyanidins remaining rate (%) = (total amount of procyanidins in beverage after heat sterilization / total amount of procyanidins in beverage before heat sterilization) * 100
上記残存率の数値が高いほど、加熱殺菌後の飲料中のプロシアニジン類が安定に保存されていることを示す。すなわち、プロシアニジン類低減抑制効果が高いことを示す。結果を図1に示す。 It shows that the procyanidins in the drink after heat sterilization are stably preserve | saved, so that the numerical value of the said residual rate is high. That is, the procyanidins reduction suppression effect is high. The results are shown in FIG.
図1に見られるように、ザクロ抽出物(1)、ザクロ抽出物(2)、アムラ抽出物、およびマンゴスチン抽出物は、加熱殺菌後において80%以上という高いプロシアニジン類残存率を示すことが分かる。特に、2種類のザクロ抽出物(エラグ酸40%〜90%含有)は、著しく高いプロシアニジン類低減抑制効果を有するポリフェノール安定化剤であることが示された。 As can be seen in FIG. 1, the pomegranate extract (1), the pomegranate extract (2), the amla extract, and the mangosteen extract show a high procyanidin residual rate of 80% or more after heat sterilization. . In particular, it was shown that two types of pomegranate extracts (containing 40% to 90% ellagic acid) are polyphenol stabilizers having an extremely high procyanidin reduction-inhibiting effect.
(v)エピマー化抑制効果の評価
エピマー比率を、上記(iii)で定量したプロシアニジン類のうち、エピカテキン、カテキンの数値を用いて、以下のように算出した。(V) Evaluation of epimerization inhibitory effect The epimer ratio was calculated as follows using the values of epicatechin and catechin among the procyanidins determined in the above (iii).
エピマー比率(%)=(各飲料中のエピカテキン量/各飲料中のエピカテキン量+カテキン量)*100 Epimer ratio (%) = (Epicatechin amount in each beverage / Epicatechin amount in each beverage + Catechin amount) * 100
加熱殺菌後の各飲料のエピマー比率の数値が、加熱殺菌前の飲料のエピマー比率に近い数値、すなわち、高い数値であるほど、加熱殺菌後の飲料中のエピカテキンがエピマー化してカテキンとなることなく、エピカテキンとして安定に保存されていることを示す。結果を図2に示す。 Epicatechins in beverages after heat sterilization become catechins as catechins as the number of epimer ratios of each beverage after heat sterilization is closer to the epimer ratio of beverages before heat sterilization, that is, the higher the number. It shows that it is stably stored as epicatechin. The results are shown in FIG.
図2に見られるように、ザクロ抽出物(1)、ザクロ抽出物(2)は、加熱殺菌後において70%以上の高いエピマー比率を示すことが分かる。すなわち、2種類のザクロ抽出物(エラグ酸40%〜90%含有)は、エピマー化抑制効果が著しく高いポリフェノール安定化剤であることが示された。 As can be seen in FIG. 2, the pomegranate extract (1) and the pomegranate extract (2) show a high epimer ratio of 70% or more after heat sterilization. That is, it was shown that two types of pomegranate extracts (containing 40% to 90% ellagic acid) are polyphenol stabilizers having a remarkably high epimerization inhibitory effect.
(実施例2)
各種植物抽出物によるポリフェノール安定化効果(加温保存)(Example 2)
Polyphenol stabilization effect by various plant extracts (warm storage)
実施例1で調製した殺菌後の飲料を37℃で2週間保存した。保存後の各飲料について、実施例1(iii)〜(v)と同様の方法に従ってプロシアニジン類残存率とエピマー比率を算出した。添加なし、ザクロ抽出物(1)、ザクロ抽出物(2)、アムラ抽出物の結果を、図3および図4に示す。 The sterilized beverage prepared in Example 1 was stored at 37 ° C. for 2 weeks. About each drink after a preservation | save, the procyanidins residual rate and the epimer ratio were computed in accordance with the method similar to Example 1 (iii)-(v). The results of no addition, pomegranate extract (1), pomegranate extract (2), and amla extract are shown in FIG. 3 and FIG.
図3および図4に見られるように、アムラ抽出物およびザクロ抽出物を添加した飲料は、加熱殺菌を経て37℃で2週間保存した後において、植物抽出物無添加の飲料よりも高いプロシアニジン類残存率およびエピマー比率を有することが分かる。特に、2種類のザクロ抽出物(エラグ酸40%〜90%含有)は、加温保存条件下においてもプロシアニジン類低減抑制効果およびエピマー化抑制効果が高いポリフェノール安定化剤であることが示された。 As shown in FIG. 3 and FIG. 4, the beverage added with Amla extract and pomegranate extract is higher in procyanidins than the beverage containing no plant extract after storage at 37 ° C. for 2 weeks after heat sterilization. It can be seen that it has a residual rate and an epimer ratio. In particular, it was shown that two types of pomegranate extracts (containing 40% to 90% ellagic acid) are polyphenol stabilizers having high procyanidins reduction inhibitory effect and epimerization inhibitory effect even under warm storage conditions. .
(実施例3)
ザクロ抽出物(エラグ酸含量90%)によるポリフェノール安定化効果(Example 3)
Polyphenol stabilization effect by pomegranate extract (90% ellagic acid content)
(i)飲料の調製
実施例1のザクロ抽出物(1)(バイオアクティブズジャパン製、エラグ酸含量90%)を用いて、実施例1(i)〜(ii)と同様の方法に従って飲料を調製した。ただし、上記抽出物の配合量については、飲料350ml中にそれぞれ、0mg、1.75mg(5ppm)、3.5mg(10ppm)、8.75mg(25ppm)、17.5mg(50ppm)、35mg(100ppm)、87.5mg(250ppm)、175mg(500ppm)、350mg(1000ppm)とした。(I) Preparation of beverage Using the pomegranate extract (1) of Example 1 (manufactured by Bioactives Japan,
上記(i)で調製された飲料は、実施例1(ii)と同様にして加熱殺菌した。加熱殺菌前後の飲料について、実施例1(iii)〜(v)と同様の方法に従ってポリフェノールを分析し、プロシアニジン類残存率およびエピマー比率を算出した。結果を図5および図6に示す。 The beverage prepared in (i) above was heat sterilized in the same manner as in Example 1 (ii). About the drink before and behind heat sterilization, polyphenol was analyzed in accordance with the method similar to Example 1 (iii)-(v), and the procyanidins residual rate and epimer ratio were computed. The results are shown in FIG. 5 and FIG.
図5および図6に見られるように、上記ザクロ抽出物を飲料中に5〜1000ppm添加することにより、濃度依存的にプロシアニジン類残存率およびエピマー比率が増加することが分かる。 As seen in FIGS. 5 and 6, it can be seen that the procyanidins residual rate and the epimer ratio increase in a concentration-dependent manner by adding 5 to 1000 ppm of the pomegranate extract in the beverage.
すなわち、プロシアニジン類100mgを含有する飲料中に、エラグ酸90%含有ザクロ抽出物を5ppm以上(エラグ酸として1.575mg以上)配合することにより、プロシアニジン類の低減抑制、および、エピ体カテキン類のエピマー化抑制が可能であることが示された。 That is, by blending 5% or more of pomegranate extract containing 90% of ellagic acid (1.575 mg or more as ellagic acid) in a beverage containing 100 mg of procyanidins, the reduction of procyanidins is reduced, and epicatechins It was shown that epimerization can be suppressed.
さらに、本実施例で調製した殺菌後の飲料を、37℃で2週間保存した。保存後の飲料について、実施例1(iii)〜(v)と同様の方法で各飲料のポリフェノールを分析して、プロシアニジン類残存率およびエピマー比率を算出した。結果を図7および図8に示す。 Furthermore, the sterilized beverage prepared in this example was stored at 37 ° C. for 2 weeks. About the drink after a preservation | save, the polyphenol of each drink was analyzed by the method similar to Example 1 (iii)-(v), and the procyanidins residual rate and the epimer ratio were computed. The results are shown in FIG. 7 and FIG.
図7および図8に見られるように、エラグ酸を90%含有するザクロ抽出物を添加した飲料は、加熱殺菌を経て37℃で2週間保存した後において、安定化剤無添加の飲料よりも高いプロシアニジン類残存率およびエピマー比率を有することが分かる。 As can be seen in FIGS. 7 and 8, the beverage added with the pomegranate extract containing 90% ellagic acid is more than the beverage without the stabilizer after storage at 37 ° C. for 2 weeks after heat sterilization. It can be seen that it has a high residual ratio of procyanidins and an epimer ratio.
(実施例4)
各種ザクロ抽出物(エラグ酸含量15〜40%、プニカラジン含量30%)によるポリフェノール安定化効果Example 4
Polyphenol stabilization effect by various pomegranate extracts (15-40% ellagic acid content, 30% punicalagin content)
(i)飲料の調製
実施例1のザクロ抽出物(2)(ナチュレックス製、エラグ酸含量40%)、ザクロ抽出物(3)(アルジュナ製、加水分解後のエラグ酸として15%含有)、ザクロ抽出物(4)(オムニカ製、プニカラジン含量30%)を用いて、実施例1(i)〜(ii)に記載の方法に従って飲料を調製した。ただし、上記抽出物の配合量については、ザクロ抽出物(2)は飲料中に250〜1000ppm、ザクロ抽出物(3)およびザクロ抽出物(4)は50〜500ppmとした。(I) Preparation of beverage Pomegranate extract (2) of Example 1 (Naturex,
上記(i)で調製された飲料は、実施例1(ii)と同様にして加熱殺菌した。加熱殺菌前後の飲料について、実施例1(iii)〜(v)と同様の方法に従ってポリフェノールを分析し、プロシアニジン類残存率およびエピマー比率を算出した。結果を図9および図10に示す。 The beverage prepared in (i) above was heat sterilized in the same manner as in Example 1 (ii). About the drink before and behind heat sterilization, polyphenol was analyzed in accordance with the method similar to Example 1 (iii)-(v), and the procyanidins residual rate and epimer ratio were computed. The results are shown in FIG. 9 and FIG.
さらに、本実施例で調製した殺菌後の飲料を、37℃で2週間保存した。ザクロ抽出物(3)およびザクロ抽出物(4)については、37℃で2ヶ月間保存した。保存後の飲料について、実施例1(iii)〜(v)と同様の方法で各飲料のポリフェノールを分析して、プロシアニジン類残存率およびエピマー比率を算出した。ザクロ抽出物(2)の結果を図11および図12に示す。また、ザクロ抽出物(3)の結果を図13および図14に示す。ザクロ抽出物(4)の結果を図15および図16に示す。 Furthermore, the sterilized beverage prepared in this example was stored at 37 ° C. for 2 weeks. The pomegranate extract (3) and the pomegranate extract (4) were stored at 37 ° C. for 2 months. About the drink after a preservation | save, the polyphenol of each drink was analyzed by the method similar to Example 1 (iii)-(v), and the procyanidins residual rate and the epimer ratio were computed. The results of the pomegranate extract (2) are shown in FIG. 11 and FIG. Moreover, the result of the pomegranate extract (3) is shown in FIG. 13 and FIG. The results of the pomegranate extract (4) are shown in FIG. 15 and FIG.
図9および図10に見られるように、上記ザクロ抽出物(2)〜(4)を飲料中に50〜1000ppm添加することによって、濃度依存的にプロシアニジン類残存率およびエピマー比率が増加することが分かる。また、図11〜図16に見られるように、エラグ酸を15〜40%またはプニカラジンを30%含有するザクロ抽出物を添加した飲料は、加熱殺菌を経て37℃で保存した後において、安定化剤無添加の飲料よりも高いプロシアニジン類残存率およびエピマー比率を有することが分かる。 As can be seen in FIGS. 9 and 10, by adding 50 to 1000 ppm of the pomegranate extract (2) to (4) in the beverage, the residual ratio of procyanidins and the epimer ratio may increase in a concentration-dependent manner. I understand. Moreover, as shown in FIGS. 11-16, the drink which added the pomegranate extract containing 15-40% of ellagic acid or 30% of punicalagine is stabilized after preserve | saving at 37 degreeC through heat sterilization. It can be seen that it has a higher procyanidin residual rate and epimer ratio than the beverage without additives.
すなわち、プロシアニジン類100mgを含有する飲料中に、プニカラジン30%含有ザクロ抽出物を50ppm以上(プニカラジンとして5.25mg以上)配合することにより、プロシアニジン類の低減抑制、および、エピ体カテキン類のエピマー化抑制が可能であることが示された。 In other words, in a beverage containing 100 mg of procyanidins, a pomegranate extract containing 30% of punicalazine is blended at 50 ppm or more (5.25 mg or more as punicalazine), thereby suppressing reduction of procyanidins and epimerization of epicatechins. It was shown that suppression is possible.
(実施例5)
エラグ酸精製品、プニカラジン精製品によるポリフェノール安定化効果(Example 5)
Polyphenol stabilization effect by refined ellagic acid and refined punicalagin
(i)飲料の調製
エラグ酸(和光純薬工業製、エラグ酸二水和物99.0%以上)およびプニカラジン(シグマ社製)を用いて、実施例1(i)〜(ii)と同様の方法に従って飲料を調製した。ただし、上記抽出物の配合量については、エラグ酸は飲料350ml中に0mg〜350mg(1000ppm)、プニカラジンは35mg(100ppm)とした。(I) Preparation of beverages Using ellagic acid (manufactured by Wako Pure Chemical Industries, ellagic acid dihydrate 99.0% or more) and punicalazine (manufactured by Sigma) as in Examples 1 (i) to (ii) The beverage was prepared according to the method of However, about the compounding quantity of the said extract, ellagic acid was 0 mg-350 mg (1000 ppm) in 350 ml of drinks, and punicalazine was 35 mg (100 ppm).
上記(i)で調製された飲料は、実施例1(ii)と同様にして加熱殺菌した。加熱殺菌前後の飲料について、実施例1(iii)〜(v)と同様の方法に従ってポリフェノールを分析し、プロシアニジン類残存率およびエピマー比率を算出した。結果を図17および図18に示す。 The beverage prepared in (i) above was heat sterilized in the same manner as in Example 1 (ii). About the drink before and behind heat sterilization, polyphenol was analyzed in accordance with the method similar to Example 1 (iii)-(v), and the procyanidins residual rate and epimer ratio were computed. The results are shown in FIG. 17 and FIG.
図17および図18に見られるように、エラグ酸を飲料中に5〜1000ppm添加することによって、濃度依存的にプロシアニジン類残存率およびエピマー比率が増加することが分かる。すなわち、プロシアニジン類を100mg含有する飲料中にエラグ酸を5ppm(1.75mg)以上またはプニカラジンを100ppm(35mg)配合することにより、飲料中のプロシアニジン類の低減抑制、および、飲料中のエピ体カテキン類のエピマー化抑制が可能であることが示された。 As can be seen in FIGS. 17 and 18, it can be seen that by adding ellagic acid to the beverage in an amount of 5 to 1000 ppm, the residual ratio of procyanidins and the epimer ratio increase in a concentration-dependent manner. That is, by containing 5 ppm (1.75 mg) or more of ellagic acid or 100 ppm (35 mg) of punicalazine in a beverage containing 100 mg of procyanidins, reduction of procyanidins in beverages and epicatechins in beverages It has been shown that epimerization can be suppressed.
さらに、本実施例で調製した殺菌後の飲料を、37℃で2ヶ月間保存した。保存後の飲料について、実施例1(iii)〜(v)と同様の方法に従って各飲料のポリフェノールを分析して、プロシアニジン類残存率およびエピマー比率を算出した。エラグ酸配合飲料の結果を図19および図20に示す。 Furthermore, the sterilized beverage prepared in this example was stored at 37 ° C. for 2 months. About the drink after a preservation | save, according to the method similar to Example 1 (iii)-(v), the polyphenol of each drink was analyzed, and the procyanidins residual rate and the epimer ratio were computed. The results of the ellagic acid-containing beverage are shown in FIG. 19 and FIG.
図19および図20に見られるように、エラグ酸を5〜1000ppm添加した飲料は、加熱殺菌を経て37℃で2ヶ月保存した後において、安定化剤無添加の飲料よりも高いプロシアニジン類残存率およびエピマー比率を有することが分かる。 As shown in FIGS. 19 and 20, the beverage added with 5-1000 ppm of ellagic acid has a higher residual rate of procyanidins than the beverage with no stabilizer added after storage at 37 ° C. for 2 months after heat sterilization. And have an epimer ratio.
さらに、上記試験飲料を37℃で3ヶ月保存した後、試験飲料(エラグ酸100ppm配合)中のエラグ酸含有量を測定したところ、配合量の理論値に対して、101%の残存率であった。 Further, after the test beverage was stored at 37 ° C. for 3 months, the ellagic acid content in the test beverage (containing 100 ppm of ellagic acid) was measured, and the residual rate was 101% with respect to the theoretical value of the blended amount. It was.
(実施例6)
エラグ酸精製品によるポリフェノール(カテキン類)安定化効果(Example 6)
Stabilization effect of polyphenols (catechins) by refined ellagic acid products
(i)飲料の調製
茶ポリフェノール(和光純薬工業製、製品名:カテキン混合物、緑茶由来)625mgと、エラグ酸(和光純薬工業製、エラグ酸二水和物99.0%以上)を0mg、35mg(100ppm)に対して、水を加えて350mlの溶液を調製した。上記溶液を、0.1M塩酸または0.1M水酸化ナトリウムを用いてpH6.5に調整して飲料とした。(I) Preparation of
(ii)殺菌
上記飲料を密閉容器に封入した後、オートクレーブで121℃、10分間加熱殺菌した。(Ii) Sterilization After the beverage was sealed in a sealed container, it was sterilized by heating at 121 ° C. for 10 minutes in an autoclave.
(iii)ポリフェノール分析
上記(i)で得られた加熱殺菌前の飲料、および上記(ii)で得られた加熱殺菌後の各飲料について、上記定量方法に従ってエピ体カテキン類および非エピ体カテキン類計8成分をそれぞれ定量した。なお、8成分の略表記は以下のとおりとする。
エピカテキン:EC
カテキン:C
エピガロカテキン:EGC
ガロカテキン:GC
エピカテキンガレート:ECG
カテキンガレート:CG
エピガロカテキンガレート:EGCG
ガロカテキンガレート:GCG(Iii) Polyphenol analysis About the beverage before heat sterilization obtained by said (i), and each drink after heat sterilization obtained by said (ii), epi catechins and non-epi catechins according to the said quantitative method A total of 8 components were quantified. The abbreviations for the eight components are as follows.
Epicatechin: EC
Catechin: C
Epigallocatechin: EGC
Gallocatechin: GC
Epicatechin gallate: ECG
Catechin gallate: CG
Epigallocatechin gallate: EGCG
Gallocatechin gallate: GCG
(iv)エピマー化抑制効果の評価
エピマー比率は、上記(iii)で定量した8成分の数値を用いて、以下のように算出した。(Iv) Evaluation of epimerization inhibitory effect The epimer ratio was calculated as follows using the numerical values of the eight components determined in (iii) above.
(a)エピマー比率(%)=(各飲料中のEC含量/各飲料中のEC含量+C含量)*100 (A) Epimer ratio (%) = (EC content in each beverage / EC content in each beverage + C content) * 100
(b)エピマー比率(%)=(各飲料中のEGC含量/各飲料中のEGC含量+GC含量)*100 (B) Epimer ratio (%) = (EGC content in each beverage / EGC content in each beverage + GC content) * 100
(c)エピマー比率(%)=(各飲料中のECG含量/各飲料中のECG含量+CG含量)*100 (C) Epimer ratio (%) = (ECG content in each beverage / ECG content in each beverage + CG content) * 100
(d)エピマー比率(%)=(各飲料中のEGCG含量/各飲料中のEGCG含量+GCG含量)*100 (D) Epimer ratio (%) = (EGCG content in each beverage / EGCG content + GCG content in each beverage) * 100
(e)エピマー比率(%)=(各飲料中のエピ体カテキン類含量の総和/各飲料中のエピ体カテキン類と非エピ体カテキン類の総和)*100 (E) Epimer ratio (%) = (sum of epi-catechin content in each beverage / sum of epi-catechins and non-epi-catechins in each beverage) * 100
加熱殺菌後の各飲料のエピマー比率の数値が、加熱殺菌前の飲料のエピマー比率に近い数値、すなわち、高い数値であるほど、加熱殺菌後の飲料中のエピ体カテキン類がエピマー化して非エピ体カテキン類となることなく、エピ体カテキン類として安定に保存されていることを示す。結果を図21に示す。 The epimer ratio of each beverage after heat sterilization is closer to the epimer ratio of the beverage before heat sterilization, that is, the higher the number, the more epimeric catechins in the beverage after heat sterilization become epimerized and non-epi It shows that it is stably preserve | saved as an epi-body catechin, without becoming a body catechin. The results are shown in FIG.
図21に見られるように、安定化剤無添加の飲料においては、加熱殺菌によって、茶カテキン類のエピ体カテキン類が非エピ体カテキン類にエピマー化するため、いずれの成分のエピマー比率についても殺菌後に低下した。一方、エラグ酸を飲料中に100ppm添加することにより、殺菌後の茶ポリフェノールのエピマー比率は無添加の飲料よりも高い値を示した。すなわち、エラグ酸は、茶飲料中のエピ体カテキン類のエピマー化を抑制するポリフェノール安定化剤として有用であることが分かる。 As shown in FIG. 21, in beverages without the addition of a stabilizer, epicatechins of tea catechins are epimerized into non-epimeric catechins by heat sterilization. Decreased after sterilization. On the other hand, by adding 100 ppm of ellagic acid into the beverage, the epimer ratio of the tea polyphenol after sterilization was higher than that of the additive-free beverage. That is, it is understood that ellagic acid is useful as a polyphenol stabilizer that suppresses epimerization of epi-catechins in tea beverages.
(実施例7)
各種濃度のエラグ酸によるポリフェノール(カテキン類)安定化効果(Example 7)
Stabilization effect of polyphenols (catechins) by various concentrations of ellagic acid
(i)飲料の調製
エラグ酸(和光純薬工業製、エラグ酸二水和物99.0%以上)を0mg、3.5mg(10ppm)、8.75mg(25ppm)、17.5mg(50ppm)、35mg(100ppm)に対して、それぞれに茶ポリフェノール(和光純薬工業製、製品名:カテキン混合物、緑茶由来)625mgと、水を加えて350mlの溶液を調製した。上記溶液を、0.1M塩酸または0.1M水酸化ナトリウムを用いてpH6.5に調整して飲料とした。(I) Preparation of
(ii)殺菌
上記飲料を密閉容器に封入した後、オートクレーブで121℃、10分間加熱殺菌した。(Ii) Sterilization After the beverage was sealed in a sealed container, it was sterilized by heating at 121 ° C. for 10 minutes in an autoclave.
実施例6と同様にして、各試験区のエピ体カテキン類および非エピ体カテキン類を定量して、エピマー比率を算出した。(e)エピマー比率(全エピ体カテキン類)の結果を図22に示す。 In the same manner as in Example 6, the epimeric catechins and non-epimeric catechins in each test group were quantified, and the epimer ratio was calculated. (E) The result of the epimer ratio (all epimeric catechins) is shown in FIG.
図22に見られるように、飲料中にエラグ酸を10〜100ppm添加することによって、殺菌後の茶ポリフェノールのエピマー比率は濃度依存的に高い値を示すことが分かる。図22には示していないが、各エピ体カテキン類成分のエピマー比率(a)〜(d)についても、同様にエラグ酸濃度依存的に高い値を示した。 As can be seen from FIG. 22, by adding 10-100 ppm of ellagic acid in the beverage, the epimer ratio of the tea polyphenol after sterilization shows a high value depending on the concentration. Although not shown in FIG. 22, the epimer ratios (a) to (d) of the respective epimeric catechins also showed high values depending on the ellagic acid concentration.
さらに、本実施例で調製した殺菌後の飲料を、37℃で2ヶ月間保存した。保存後の飲料について、実施例6(iii)〜(iv)と同様の方法に従って各飲料のポリフェノールを分析して、各試験区のエピ体カテキン類および非エピ体カテキン類を定量して、エピマー比率を算出した。(e)エピマー比率(全エピ体カテキン類)の結果を図23に示す。 Furthermore, the sterilized beverage prepared in this example was stored at 37 ° C. for 2 months. About the drink after a preservation | save, according to the method similar to Example 6 (iii)-(iv), the polyphenol of each drink is analyzed, and the epimer catechin and non-epimer catechin of each test section are quantified, Epimer The ratio was calculated. The results of (e) epimer ratio (all epimeric catechins) are shown in FIG.
図23に見られるように、エラグ酸を10〜100ppm添加した飲料は、加熱殺菌を経て37℃で2ヶ月保存した後において、安定化剤無添加の飲料よりも高いエピマー比率を有することが分かる。図23には示していないが、各エピ体カテキン類成分のエピマー比率(a)〜(d)についても、同様にエラグ酸濃度依存的に高い値を示した。 As can be seen in FIG. 23, the beverage added with 10-100 ppm of ellagic acid has a higher epimer ratio than the beverage without the stabilizer after being stored at 37 ° C. for 2 months after heat sterilization. . Although not shown in FIG. 23, the epimer ratios (a) to (d) of the respective epimeric catechins also showed high values depending on the ellagic acid concentration.
(実施例8)
カカオポリフェノール含有飲料(pH6.5)におけるポリフェノール安定化効果(Example 8)
Polyphenol stabilization effect in cocoa polyphenol-containing beverage (pH 6.5)
(i)飲料の調製
上記方法に従って得られたカカオポリフェノール625mg(プロシアニジン類含量100mg)と、エラグ酸(試薬)またはザクロ抽出物(4)(プニカラジン30%含有)35mg(100ppm)に、水を加えて350mlの溶液を調製した。上記溶液を、0.1M塩酸または0.1M水酸化ナトリウムを用いてpH6.5に調整して飲料とした。(I) Preparation of Beverage Add water to 625 mg (100 mg procyanidins content) of cocoa polyphenol obtained according to the above method and 35 mg (100 ppm) ellagic acid (reagent) or pomegranate extract (4) (30% punicalagin). A 350 ml solution was prepared. The solution was adjusted to pH 6.5 with 0.1M hydrochloric acid or 0.1M sodium hydroxide to obtain a beverage.
上記(i)で調製された飲料は、実施例1(ii)と同様にして加熱殺菌した。加熱殺菌前後、および37℃2週間保存した飲料について、実施例1(iii)〜(v)と同様の方法に従ってポリフェノールを分析し、プロシアニジン類残存率およびエピマー比率を算出した。結果を図24および図25に示す。 The beverage prepared in (i) above was heat sterilized in the same manner as in Example 1 (ii). About the drink preserve | saved before and behind heat sterilization and 37 degreeC for 2 weeks, polyphenol was analyzed in accordance with the method similar to Example 1 (iii)-(v), and the procyanidins residual ratio and epimer ratio were computed. The results are shown in FIGS. 24 and 25.
図24および図25に見られるように、pH6.5のカカオポリフェノール含有飲料に対しても、エラグ酸またはプニカラジンを含有する安定化剤を飲料中に100ppm添加することによって、プロシアニジン類残存率およびエピマー比率が増加することが分かる。 As shown in FIG. 24 and FIG. 25, the procyanidins residual rate and epimer were also obtained by adding 100 ppm of a stabilizer containing ellagic acid or punicalagin to a beverage containing cacao polyphenol having a pH of 6.5. It can be seen that the ratio increases.
(比較例1)
没食子酸のポリフェノール安定化への影響(Comparative Example 1)
Effect of gallic acid on polyphenol stabilization
(i)飲料の調製
上記方法に従って得られたカカオポリフェノール625mg(プロシアニジン類含量100mg)と、エラグ酸(試薬)または没食子酸(試薬)それぞれ35mg(100ppmm)に、水を加えて350mlの溶液を調製した。上記溶液を、0.1M塩酸または0.1M水酸化ナトリウムを用いてpH5.5に調整して飲料とした。(I) Preparation of Beverage Cacaopolyphenol 625 mg (
上記(i)で調製された飲料は、実施例1(ii)と同様にして加熱殺菌した。加熱殺菌前後のそれぞれの飲料について、実施例1(iii)〜(v)と同様の方法に従ってポリフェノールを分析し、プロシアニジン類残存率およびエピマー比率を算出した。結果を図26および図27に示す。 The beverage prepared in (i) above was heat sterilized in the same manner as in Example 1 (ii). About each drink before and behind heat sterilization, polyphenol was analyzed in accordance with the same method as Example 1 (iii)-(v), and the procyanidins residual rate and epimer ratio were computed. The results are shown in FIGS. 26 and 27.
図26および図27から分かるように、没食子酸についてはポリフェノール安定化効果が確認できなかった。 As can be seen from FIG. 26 and FIG. 27, the effect of stabilizing polyphenols could not be confirmed for gallic acid.
(参考例1)
各種植物抽出物の抗酸化活性と総ポリフェノール量(Reference Example 1)
Antioxidant activity and total polyphenol content of various plant extracts
実施例1で使用した植物抽出物(ショウガ抽出物、アスコルビン酸、ザクロ抽出物(2)を除く)について、抗酸化活性(DPPHラジカル消去能)および総ポリフェノール量を測定した。 About the plant extract (except for ginger extract, ascorbic acid, and pomegranate extract (2)) used in Example 1, the antioxidant activity (DPPH radical scavenging ability) and the total polyphenol amount were measured.
(DPPHラジカル消去能)
DPPH(1,1−ジフェニル−2−ピクリルヒドラジル;1,1-Dyphenyl-2-picrylhydrazyl)ラジカル消去能は、非特許文献4に記載された方法に従って測定した。測定方法の概略は以下のとおりである。(DPPH radical scavenging ability)
DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging ability was measured according to the method described in Non-Patent Document 4. The outline of the measuring method is as follows.
各植物抽出物を80重量%メタノール水溶液で溶解して、濃度1000ppmより段階的に希釈した溶液を調製した。上記溶液100μlに対して0.1mM DPPH溶液2mlを加えて、30分間室温で静置した後、520nmの吸光度を測定した。DPPH溶液をブランクとして、その吸光度の値を阻害率100%として、各試料溶液の阻害率を算出した。上記阻害率が50%になる試料濃度(IC50)を内挿法により求めた。IC50の値が低いほど、DPPHラジカル消去能(抗酸化活性)が高いことを示す。得られた抗酸化活性の結果と、実施例1により得られたプロシアニジン類残存率の相関を図28に示す。 Each plant extract was dissolved in 80 wt% aqueous methanol solution to prepare a solution diluted stepwise from a concentration of 1000 ppm. To 100 μl of the above solution, 2 ml of 0.1 mM DPPH solution was added and allowed to stand at room temperature for 30 minutes, and then the absorbance at 520 nm was measured. The inhibition rate of each sample solution was calculated using the DPPH solution as a blank and the absorbance value as the inhibition rate of 100%. The sample concentration (IC50) at which the inhibition rate was 50% was determined by interpolation. It shows that DPPH radical scavenging ability (antioxidant activity) is so high that the value of IC50 is low. FIG. 28 shows the correlation between the results of the obtained antioxidant activity and the residual ratio of procyanidins obtained in Example 1.
図28から分かるように、実施例1で用いた各植物抽出物の抗酸化活性とプロシアニジン類残存率との間には有意な相関がみられなかった。 As can be seen from FIG. 28, there was no significant correlation between the antioxidant activity of each plant extract used in Example 1 and the procyanidins residual rate.
(総ポリフェノール量)
総ポリフェノール量は、非特許文献5に記載された方法を参照し、市販の没食子酸を標準品として、各試料の定量分析を行うことによって得た値である。測定方法の概略は以下のとおりである。(Total polyphenol content)
The total amount of polyphenol is a value obtained by referring to the method described in
各植物抽出物を80重量%メタノール水溶液を用いて抽出し、試験溶液とした。次いで、蒸留水50mlに各試験溶液100μlを添加し、攪拌しながら0.1M硫酸鉄(III)アンモニウム−0.1M塩酸溶液3mlを加え、その20分後に8mM ヘキサシアノ鉄(III)カリウム水溶液3mlを加え、さらに20分後に720nmの吸光度を測定した。さらに、蒸留水50mlに各サンプル液の溶媒(80重量%メタノール)100μlを加えたもの、および没食子酸(シグマ社製)80重量%メタノール溶液を用い、同様の処理を行って検量線を作成し、各試験溶液中の総ポリフェノール量を算出した。得られた総ポリフェノール量の結果と、実施例1により得られたプロシアニジン類残存率の相関を図29に示す。 Each plant extract was extracted with 80 wt% aqueous methanol solution to obtain a test solution. Next, 100 μl of each test solution was added to 50 ml of distilled water, 3 ml of 0.1 M iron (III) ammonium sulfate-0.1 M hydrochloric acid solution was added with stirring, and 20 minutes later, 3 ml of 8 mM aqueous hexacyanoiron (III) potassium solution was added. In addition, the absorbance at 720 nm was measured after another 20 minutes. Further, using a solution obtained by adding 100 μl of the solvent of each sample solution (80 wt% methanol) to 50 ml of distilled water and an 80 wt% methanol solution of gallic acid (manufactured by Sigma), a calibration curve was prepared by performing the same treatment. The total amount of polyphenols in each test solution was calculated. FIG. 29 shows the correlation between the result of the total amount of polyphenols obtained and the procyanidins remaining rate obtained in Example 1.
図29から分かるように、実施例1で用いた各植物抽出物の総ポリフェノール量とプロシアニジン類残存率との間には有意な相関がみられなかった。 As can be seen from FIG. 29, no significant correlation was found between the total polyphenol amount of each plant extract used in Example 1 and the procyanidins residual rate.
本発明により見出されたエラグ酸およびプニカラジンによるポリフェノール安定化効果は、抗酸化活性および総ポリフェノール量によるものではないと推測された。 It was speculated that the polyphenol stabilizing effect of ellagic acid and punicalazine found by the present invention was not due to antioxidant activity and total polyphenol content.
Claims (16)
(a)請求項7〜11のいずれか1項に記載の組成物を調製する工程と、
(b)前記組成物を用いて、ポリフェノール含有加工製品を調製する工程と、
(c)前記ポリフェノール含有加工製品を37℃以上の温度に加熱する工程と
を含む、製造方法。A method for producing a polyphenol-containing processed product,
(A) preparing the composition according to any one of claims 7 to 11;
(B) using the composition to prepare a polyphenol-containing processed product;
(C) heating the said polyphenol containing processed product to the temperature of 37 degreeC or more, and a manufacturing method.
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