JP2004357539A - Bottled coffee drink - Google Patents

Bottled coffee drink Download PDF

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Publication number
JP2004357539A
JP2004357539A JP2003157870A JP2003157870A JP2004357539A JP 2004357539 A JP2004357539 A JP 2004357539A JP 2003157870 A JP2003157870 A JP 2003157870A JP 2003157870 A JP2003157870 A JP 2003157870A JP 2004357539 A JP2004357539 A JP 2004357539A
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Japan
Prior art keywords
catechins
polymer catechins
coffee beverage
beverage
packaged
Prior art date
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JP2003157870A
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Japanese (ja)
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JP4185406B2 (en
Inventor
Yoichi Suzuki
陽一 鈴木
Mamoru Nakamura
守 中村
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Kao Corp
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Kao Corp
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Priority to JP2003157870A priority Critical patent/JP4185406B2/en
Publication of JP2004357539A publication Critical patent/JP2004357539A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide bottled coffee drink containing non-polymeric catechins at high concentration and having excellent stability. <P>SOLUTION: The bottled coffee drink which is subjected to heat sterilization process contains (A) 10-390 mg/100 mL of non-polymeric catechins and (B) 50-7,000 mg/100 mL of water soluble protein. The rate of content of non-epicatechins in the non-polymeric catechins is 35-90 wt.% and pH is 6.0-6.4. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は非重合体カテキン類を高濃度に含有し、非重合体カテキン類の分解が抑制された安定性の良好な容器詰コーヒー飲料に関する。
【0002】
【従来の技術】
カテキン類の効果としてはコレステロール上昇抑制作用やαアミラーゼ活性阻害作用などが報告されている(例えば、特許文献1及び2参照)。このような生理効果を発現させるためには、成人一日あたり4〜5杯のお茶を飲むことが必要であることから、より簡便に大量のカテキン類を摂取するために、飲料にカテキン類を高濃度配合し、味や安定性を向上させた容器詰飲料が報告されている(特許文献3〜6参照)。
【0003】
一方、種々の容器詰飲料の中でコーヒー飲料は、極めて広く飲用されている飲料であるが、カテキン類を高濃度に含有させたコーヒー飲料は知られていない。
【0004】
【特許文献1】
特開昭60−156614号公報
【特許文献2】
特開平3−133928号公報
【特許文献3】
特許第3329799号公報
【特許文献4】
特許第3342698号公報
【特許文献5】
特許第3360073号公報
【特許文献6】
特許第3338705号公報
【0005】
【発明が解決しようとする課題】
そこで、カテキン類を高濃度含有したコーヒー飲料を得るべく、コーヒー抽出液にカテキン類の配合を試みた。しかし、得られた飲料を殺菌加熱処理するとカテキン類が分解してしまうこと、さらに、この飲料を高温保存してもカテキン類が重合してしまうことが判明し、通常の手段ではカテキン類を安定に配合した容器詰コーヒー飲料は得られなかった。
従って本発明の目的は非重合体カテキン類を高濃度に含有し、かつ非重合体カテキン類の重合が抑制された加熱殺菌処理した容器詰コーヒー飲料を提供することにある。
【0006】
【課題を解決するための手段】
本発明者は、コーヒー飲料中のカテキン類の分解を抑制する手段について検討した結果、一定量の水溶性タンパク質を配合し、非重合体カテキン類中の非エピ体含有率を調整し、かつpHを6.0〜6.4の範囲に調整すれば、カテキン類が加熱処理によって分解せず、カテキン類を高濃度含有した安定な加熱殺菌処理した容器詰コーヒー飲料が得られることを見出した。
【0007】
すなわち、本発明は次の成分(A)及び(B)
(A)非重合体カテキン類 10mg〜390mg/100mL
(B)水溶性タンパク質 50mg〜7000mg/100mL
を含有し、非重合体カテキン類中の非エピ体含有率が35〜90重量%であり、pHが6.0〜6.4である加熱殺菌処理した容器詰コーヒー飲料を提供するものである。
【0008】
【発明の実施の形態】
本発明で非重合体カテキン類とは、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の非エピ体カテキン類(非エピ体)及びエピカテキン、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のエピ体カテキン類(エピ体)をあわせての総称である。
【0009】
本発明の容器詰コーヒー飲料中には、非重合体であって水に溶解状態にある非重合体カテキン類(A)を、10mg〜390mg/100mL含有するが、好ましくは11mg〜300mg/100mL、さらに好ましくは12mg〜300mg/100mL含有する。非重合体カテキン類含量がこの範囲にあると、多量の非重合カテキン類を容易に取り易く、強烈な苦味、渋味、強い収斂性が生じない。ここでいう非重合体カテキン類の濃度は、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、エピカテキン、エピガロカテキン、エピカテキンガレート及びエピガロカテキンガレートの合計8種の合計量に基づいて定義される。
【0010】
非重合体カテキン類(A)中の非エピ体含有率は、色相に対する安定性の点から35〜90重量%であるが、さらに40〜90重量%、特に50〜90重量%が好ましい。当該非エピ体含有率は、前記非重合体カテキン類中の非エピ体カテキン濃度である。
【0011】
また、本発明の容器詰コーヒー飲料中の非重合体カテキン類においては、カテキンガレートとエピカテキンガレートとガロカテキンガレートとエピガロカテキンガレートからなるガレート体の全非重合体カテキン類中での割合が45重量%以上、特に50〜100重量%が、非重合体カテキン類の生理効果の有効性上好ましい。
【0012】
非重合体カテキン類(A)は、広く茶由来のものが使用できるが、緑茶由来のもの、特に緑茶抽出物を使用するのが、高濃度の非重合体カテキン類を配合できる点及び味の点で好ましい。
【0013】
ここで緑茶抽出物としては、茶葉から熱水もしくは水溶性有機溶媒により抽出された抽出物を濃縮したものをさらに精製したもの、あるいは抽出された濃縮物を直接精製したものが挙げられる。また市販の三井農林(株)「ポリフェノン」、伊藤園(株)「テアフラン」、太陽化学(株)「サンフェノン」などの緑茶濃縮物を用いることもできる。
【0014】
緑茶濃縮物の精製手段としては、例えば緑茶濃縮物を水と有機溶媒の混合物に懸濁し、これに有機溶媒を添加することにより生じた沈殿を除去し、次いで溶媒を留去する方法;緑茶濃縮物を水と有機溶媒の混合物に溶解し、これに有機溶媒を添加することにより生じた沈殿を除去し、次いで溶媒を留去する方法等が挙げられる。
ここでいう緑茶抽出物の形態としては、固体、水溶液、スラリー状など種々のものが挙げられる。
【0015】
本発明に使用する緑茶としては、Camellia属、例えばC. sinensis、C. assamica及びやぶきた種、又はそれらの雑種から得られる茶葉から製茶された茶葉が挙げられる。当該製茶された茶葉には、煎茶、番茶、玉露、てん茶、釜炒り茶などの緑茶類がある。
【0016】
本発明の容器詰コーヒー飲料において水溶性タンパク質(B)は、加熱処理及び保存中の非重合体カテキン類の重合を防止する作用を有する。当該非重合体カテキン類重合防止効果の点とコーヒー風味の観点から、容器詰コーヒー飲料中に、水溶性タンパク質は、50mg〜7000mg/100mL、さらに150mg〜3000mg/100mL、特に240mg〜1500mg/100mL含有するのが好ましい。ここで水溶性タンパク質濃度は、ケルダー法により測定される。
【0017】
水溶性タンパク質(B)としては、乳タンパク質が好ましく、カゼインやカゼインNaなど例えば、αS1−カゼイン、α2S−カゼイン、β−カゼイン、γ−カゼイン、κ−カゼインや、ホエー蛋白質例えば血清アルブミン、α−ラクトアルブミン、β−ラクトアルブミン、免疫グロブリンなどが挙げられ、このうちカゼインまたはカゼインNaが経済的な面で特に好ましい。
また、乳タンパク質を含有する牛乳等の動物性の乳類、豆乳などの植物性の乳類を利用することもできる。
【0018】
本発明の容器詰コーヒー飲料のpHは、非重合体カテキン類の分解防止と風味の観点から6.0〜6.4であるが、さらに6.0〜6.3、特に6.1〜6.3が好ましい。pH6.0未満では風味に酸味が生じ、pH6.4を超えるものは非重合体カテキン類の長期保存時の分解が多くなる。当該pHの調整は、炭酸水素ナトリウムなどのいわゆるアルカリにより行うのが好ましい。
【0019】
また、本発明容器詰コーヒー飲料は、トリグリセリドを含有させると、さらに非重合体カテキン類の重合防止効果が向上する。当該トリグリセリドとしては、大豆油、コーン油、オリーブ油、乳脂、綿実油、ひまわり油、サフラワー油、落花生油、カカオ脂、なたね油、ごま油が挙げられ、このうち乳脂、コーン油、大豆油、なたね油が特に好ましい。これらのトリグリセリドの容器詰コーヒー飲料中の含有量は、非重合体カテキン類重合防止効果とコーヒー風味の観点から、50mg〜7000mg/100mL、さらに200〜3500mg/100mL、特に300〜2000mg/100mLが好ましい。
【0020】
本発明の容器詰コーヒー飲料は、コーヒー抽出液に非重合体カテキン類、水溶性タンパク質、その他の成分を配合することにより製造できるが、コーヒー抽出液の原料となるコーヒー豆としてはモカ、ブラジル、コロンビア、マンデリン、キリマンジャロ、ブルーマウンテン、グアテマラ、メキシコ、コスタリカなどのアラビカ種、ロブスタ種、リベリカ種とこれらのブレンドが挙げられる。また焙煎手段は特に制限されないが、直火、熱風などの焙煎方法が実施可能である。抽出手段としては、ドリップ、エスプレッソ、サイフォン、パーコレーターなどが挙げられる。また、抽出物の濃縮物、乾燥物であるコーヒーエキス、インスタントコーヒーなどのコーヒー粉末も含まれる。
【0021】
本発明の容器詰コーヒー飲料には、処方上添加して良い成分として、苦味抑制剤、酸化防止剤、香料、各種エステル類、有機酸類、有機酸塩類、無機酸類、無機酸塩類、無機塩類、色素類、乳化剤、保存料、調味料、甘味料、酸味料、品質安定剤などの添加剤を単独、あるいは併用して配合しても良い。
【0022】
苦味抑制剤としては特に限定はないが、サイクロデキストリンが好ましい。サイクロデキストリンとしては、α−、β−、γ−サイクロデキストリン及び分岐α−、β−、γ−サイクロデキストリンが使用できる。サイクロデキストリンは飲料中に0.01〜0.5重量%、好ましくは0.01〜0.3重量%含有するのがよい。
【0023】
例えば甘味料としては、砂糖、ぶどう糖、果糖、異性化液糖、グリチルリチン、ステビア、アスパラテーム、フラクトオリゴ糖、ガラクトオリゴ糖などが挙げられる。酸味料としては、天然成分から抽出した果汁類のほか、クエン酸、酒石酸、リンゴ酸、乳酸、フマル酸、リン酸が挙げられる。飲料中に0.01〜0.5重量%、好ましくは0.01〜0.3重量%含有するのがよい。
無機酸類、無機酸塩類としてはリン酸、リン酸二ナトリウム、メタリン酸ナトリウム、ポリリン酸ナトリウムなどが挙げられる。飲料中に0.01〜0.5重量%、好ましくは0.01〜0.3重量%含有するのがよい。
【0024】
本発明の容器詰コーヒー飲料に使用される容器は、一般の飲料と同様にポリエチレンテレフタレートを主成分とする成形容器(いわゆるPETボトル)、金属缶、金属箔やプラスチックフィルムと複合された紙容器、瓶などの通常の形態で提供することができる。ここでいう容器詰コーヒー飲料とは希釈せずに飲用できるものをいう。
【0025】
また本発明の容器詰コーヒー飲料は、例えば、金属缶のように容器に充填後、加熱殺菌できる場合にあっては食品衛生法に定められた殺菌条件で製造される。PETボトル、紙容器のようにレトルト殺菌できないものについては、あらかじめ上記と同等の殺菌条件、例えばプレート式熱交換器などで高温短時間殺菌後、一定の温度迄冷却して容器に充填する等の方法が採用される。また無菌下で、充填された容器に別の成分を配合して充填してもよい。さらに、酸性下で加熱殺菌後、無菌下でpHを中性に戻すことや、中性下で加熱殺菌後、無菌下でpHを酸性に戻すなどの操作も可能である。
【0026】
【実施例】
カテキン類の測定
フィルター(0.8μm)でろ過し、次いで蒸留水で希釈した容器詰飲料を、島津製作所製、高速液体クロマトグラフ(型式SCL−10AVP)を用い、オクタデシル基導入液体クロマトグラフ用パックドカラム L−カラムTM ODS(4.6mmφ×250mm:財団法人 化学物質評価研究機構製)を装着し、カラム温度35℃でグラジエント法により行った。移動相A液は酢酸を0.1mol/L含有の蒸留水溶液、B液は酢酸を0.1mol/L含有のアセトニトリル溶液とし、試料注入量は20μL、UV検出器波長は280nmの条件で行った。
【0027】
実施例1、2及び比較例1、2
表1に記載の組成のコーヒー飲料を製造した。本発明のコーヒー飲料は、長期高温保存後でも非重合体カテキン類の量が低下しないのに対し、pHが6.0〜6.4の範囲外である場合(比較例1)及び水溶性タンパク質含有量が50mg/100mL未満の場合(比較例2)は、非重合体カテキン類が分解してしまうことがわかる。
【0028】
【表1】

Figure 2004357539
【0029】
【発明の効果】
本発明により、高濃度の非重合体カテキン類を安定に含有した容器詰コーヒー飲料が得られる。[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a packaged coffee beverage containing a high concentration of non-polymer catechins and suppressing decomposition of the non-polymer catechins and having good stability.
[0002]
[Prior art]
As the effects of catechins, an effect of suppressing cholesterol elevation and an effect of inhibiting α-amylase activity have been reported (for example, see Patent Documents 1 and 2). In order to express such physiological effects, it is necessary to drink 4 to 5 cups of tea per day for an adult. Therefore, in order to more easily ingest a large amount of catechins, catechins are added to beverages. Containerized beverages with a high concentration and improved taste and stability have been reported (see Patent Documents 3 to 6).
[0003]
On the other hand, among various packaged beverages, coffee beverages are beverages that are extremely widely consumed, but coffee beverages containing catechins at a high concentration are not known.
[0004]
[Patent Document 1]
JP-A-60-156614 [Patent Document 2]
Japanese Patent Application Laid-Open No. 3-13928 [Patent Document 3]
Japanese Patent No. 3329799 [Patent Document 4]
Japanese Patent No. 3342698 [Patent Document 5]
Japanese Patent No. 3360073 [Patent Document 6]
Japanese Patent No. 3338705
[Problems to be solved by the invention]
Therefore, in order to obtain a coffee beverage containing a high concentration of catechins, an attempt was made to mix catechins in the coffee extract. However, it has been found that catechins are decomposed when the obtained beverage is sterilized and heat-treated, and that catechins are polymerized even when the beverage is stored at a high temperature. Was not obtained.
Accordingly, an object of the present invention is to provide a heat-sterilized packaged coffee beverage containing a non-polymer catechin at a high concentration and suppressing the polymerization of the non-polymer catechin.
[0006]
[Means for Solving the Problems]
The present inventors have studied means for suppressing the decomposition of catechins in coffee beverages, as a result of blending a certain amount of water-soluble protein, adjusting the content of non-epi isomers in non-polymer catechins, and pH Was adjusted to the range of 6.0 to 6.4, the catechins were not decomposed by the heat treatment, and a stable heat sterilized packaged coffee beverage containing a high concentration of the catechins was found to be obtained.
[0007]
That is, the present invention provides the following components (A) and (B)
(A) Non-polymer catechins 10 mg to 390 mg / 100 mL
(B) Water-soluble protein 50mg-7000mg / 100mL
And a heat-sterilized packaged coffee beverage having a non-epimeric content in non-polymer catechins of 35 to 90% by weight and a pH of 6.0 to 6.4. .
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
In the present invention, the non-polymer catechins include non-epicate catechins (non-epi) such as catechin, gallocatechin, catechin gallate, and gallocatechin gallate, and epicatechin, epigallocatechin, epicatechin gallate, epigallocatechin gallate, and the like. Epi-catechins (epi-forms).
[0009]
The packaged coffee beverage of the present invention contains the non-polymer catechins (A), which are non-polymers and dissolved in water, in an amount of 10 mg to 390 mg / 100 mL, preferably 11 mg to 300 mg / 100 mL, More preferably, the content is 12 mg to 300 mg / 100 mL. When the content of the non-polymer catechins is in this range, a large amount of non-polymer catechins can be easily obtained, and strong bitterness, astringency and strong astringency do not occur. The concentration of the non-polymer catechins referred to herein is defined based on the total amount of catechin, gallocatechin, catechin gallate, gallocatechin gallate, epicatechin, epigallocatechin, epicatechin gallate, and epigallocatechin gallate. You.
[0010]
The content of the non-epi-isomer in the non-polymer catechins (A) is from 35 to 90% by weight, preferably from 40 to 90% by weight, particularly preferably from 50 to 90% by weight from the viewpoint of hue stability. The non-epi-form catechin content is the non-epi-form catechin concentration in the non-polymer catechins.
[0011]
Further, in the non-polymer catechins in the packaged coffee beverage of the present invention, the proportion of the total non-polymer catechins of the gallate composed of catechin gallate, epicatechin gallate, gallocatechin gallate and epigallocatechin gallate is 45% by weight or more, especially 50 to 100% by weight, is preferable in terms of the effectiveness of the physiological effect of the non-polymer catechins.
[0012]
As the non-polymer catechins (A), tea-derived ones can be widely used, but green tea-derived ones, particularly green tea extract, are used because high-concentration non-polymer catechins can be blended and taste is high. It is preferred in that respect.
[0013]
Here, examples of the green tea extract include those obtained by further concentrating an extract extracted from tea leaves with hot water or a water-soluble organic solvent, and those obtained by directly purifying the extracted concentrate. Also, commercially available green tea concentrates such as Mitsui Norin Co., Ltd. "Polyphenon", Itoen Co., Ltd. "Theafran", Taiyo Kagaku Co., Ltd. "Sanphenon" can be used.
[0014]
As a means for purifying the green tea concentrate, for example, a method of suspending the green tea concentrate in a mixture of water and an organic solvent, removing a precipitate formed by adding an organic solvent thereto, and then distilling off the solvent; A method in which the substance is dissolved in a mixture of water and an organic solvent, a precipitate formed by adding the organic solvent to the mixture is removed, and then the solvent is distilled off.
Examples of the form of the green tea extract here include various forms such as a solid, an aqueous solution, and a slurry.
[0015]
Green tea used in the present invention includes Camellia sp. sinensis, C.I. tea leaves produced from tea leaves obtained from assamica and Yabutaki seeds, or hybrids thereof. The tea leaves thus produced include green teas such as sencha, bancha, gyokuro, tencha, and roasted tea.
[0016]
In the packaged coffee beverage of the present invention, the water-soluble protein (B) has an action of preventing polymerization of non-polymer catechins during heat treatment and storage. From the viewpoint of the effect of preventing polymerization of the non-polymer catechins and the coffee flavor, the water-soluble protein is contained in the packaged coffee beverage in an amount of 50 mg to 7000 mg / 100 mL, more preferably 150 mg to 3000 mg / 100 mL, and particularly 240 mg to 1500 mg / 100 mL. Is preferred. Here, the concentration of the water-soluble protein is measured by the Kjelda method.
[0017]
As the water-soluble protein (B), milk protein is preferable, and casein and casein Na, for example, αS1-casein, α2S-casein, β-casein, γ-casein, κ-casein, and whey proteins such as serum albumin, α-casein Lactalbumin, β-lactalbumin, immunoglobulin and the like can be mentioned. Among them, casein or casein Na is particularly preferred in terms of economy.
In addition, animal milk such as cow milk containing milk protein and vegetable milk such as soy milk can also be used.
[0018]
The pH of the packaged coffee beverage of the present invention is 6.0 to 6.4 from the viewpoint of prevention of decomposition of non-polymer catechins and flavor, and further 6.0 to 6.3, particularly 6.1 to 6. .3 is preferred. When the pH is lower than 6.0, the flavor becomes sour, and when the pH is higher than 6.4, the decomposition of non-polymer catechins during long-term storage increases. The adjustment of the pH is preferably performed with a so-called alkali such as sodium hydrogen carbonate.
[0019]
When the packaged coffee beverage of the present invention contains triglyceride, the effect of preventing the polymerization of non-polymer catechins is further improved. Examples of the triglyceride include soybean oil, corn oil, olive oil, milk fat, cottonseed oil, sunflower oil, safflower oil, peanut oil, cocoa butter, rapeseed oil, sesame oil, of which milk fat, corn oil, soybean oil, rapeseed oil is particularly preferred. preferable. The content of these triglycerides in the packaged coffee beverage is preferably from 50 mg to 7000 mg / 100 mL, more preferably from 200 to 3500 mg / 100 mL, particularly preferably from 300 to 2000 mg / 100 mL, from the viewpoint of the non-polymer catechins polymerization inhibitory effect and coffee flavor. .
[0020]
The packaged coffee beverage of the present invention can be produced by adding a non-polymer catechin, a water-soluble protein, and other components to the coffee extract, but as coffee beans used as a raw material of the coffee extract, mocha, Brazil, Arabica, Robusta, Riberica species such as Colombia, Mandelin, Kilimanjaro, Blue Mountain, Guatemala, Mexico, Costa Rica and blends thereof. Further, the roasting means is not particularly limited, but a roasting method such as open flame or hot air can be implemented. Examples of the extracting means include a drip, an espresso, a siphon, and a percolator. Also included are coffee concentrates such as concentrated extracts, dried coffee extracts, and instant coffee.
[0021]
In the packaged coffee beverage of the present invention, as components that may be added in the formulation, bitterness suppressants, antioxidants, flavors, various esters, organic acids, organic acid salts, inorganic acids, inorganic acid salts, inorganic salts, Additives such as pigments, emulsifiers, preservatives, seasonings, sweeteners, sour agents, and quality stabilizers may be used alone or in combination.
[0022]
The bitterness suppressor is not particularly limited, but cyclodextrin is preferred. As cyclodextrin, α-, β-, γ-cyclodextrin and branched α-, β-, γ-cyclodextrin can be used. The cyclodextrin may be contained in the beverage in an amount of 0.01 to 0.5% by weight, preferably 0.01 to 0.3% by weight.
[0023]
For example, examples of the sweetener include sugar, glucose, fructose, isomerized liquid sugar, glycyrrhizin, stevia, aspartame, fructooligosaccharide, galactooligosaccharide and the like. Examples of the acidulant include juice extracted from natural components, citric acid, tartaric acid, malic acid, lactic acid, fumaric acid, and phosphoric acid. The beverage may contain 0.01 to 0.5% by weight, preferably 0.01 to 0.3% by weight.
Examples of inorganic acids and inorganic acid salts include phosphoric acid, disodium phosphate, sodium metaphosphate, sodium polyphosphate and the like. The beverage may contain 0.01 to 0.5% by weight, preferably 0.01 to 0.3% by weight.
[0024]
Containers used for the packaged coffee beverage of the present invention include molded containers (so-called PET bottles) containing polyethylene terephthalate as a main component, metal cans, paper containers composited with metal foils and plastic films, like ordinary beverages, It can be provided in a conventional form such as a bottle. Here, the packaged coffee beverage means a beverage that can be drunk without dilution.
[0025]
Further, the packaged coffee beverage of the present invention is manufactured under sterilization conditions specified in the Food Sanitation Law, for example, when it can be heat-sterilized after filling into a container such as a metal can. For PET bottles and containers that cannot be retorted, such as paper containers, sterilization conditions equivalent to those described above in advance, for example, after sterilizing at a high temperature for a short time with a plate heat exchanger, cooling to a certain temperature, and filling the container. The method is adopted. Further, another component may be blended and filled in the filled container under aseptic conditions. Furthermore, operations such as returning the pH to neutral under aseptic conditions after heat sterilization under acidic conditions, and returning the pH to acidic under sterile conditions after heat sterilization under neutral conditions are also possible.
[0026]
【Example】
Measurement of catechins A packaged beverage filtered with a filter (0.8 μm) and then diluted with distilled water was subjected to octadecyl group-introduced liquid using a high performance liquid chromatograph (model SCL-10AVP) manufactured by Shimadzu Corporation. A packed column for chromatography, L-column TM ODS (4.6 mmφ × 250 mm: manufactured by Chemicals Evaluation and Research Institute) was installed, and the column method was performed at a column temperature of 35 ° C. by a gradient method. The mobile phase A liquid was a distilled aqueous solution containing 0.1 mol / L of acetic acid, and the liquid B was an acetonitrile solution containing 0.1 mol / L of acetic acid. The injection amount of the sample was 20 μL, and the wavelength of the UV detector was 280 nm. .
[0027]
Examples 1 and 2 and Comparative Examples 1 and 2
A coffee beverage having the composition shown in Table 1 was produced. In the coffee beverage of the present invention, the amount of non-polymer catechins does not decrease even after long-term high-temperature storage, whereas the pH is out of the range of 6.0 to 6.4 (Comparative Example 1) and the water-soluble protein When the content is less than 50 mg / 100 mL (Comparative Example 2), it can be seen that the non-polymer catechins are decomposed.
[0028]
[Table 1]
Figure 2004357539
[0029]
【The invention's effect】
According to the present invention, a packaged coffee beverage stably containing a high concentration of non-polymer catechins can be obtained.

Claims (3)

次の成分(A)及び(B)
(A)非重合体カテキン類 10mg〜390mg/100mL
(B)水溶性タンパク質 50mg〜7000mg/100mL
を含有し、非重合体カテキン類中の非エピ体含有率が35〜90重量%であり、pHが6.0〜6.4である加熱殺菌処理した容器詰コーヒー飲料。
The following components (A) and (B)
(A) Non-polymer catechins 10 mg to 390 mg / 100 mL
(B) Water-soluble protein 50mg-7000mg / 100mL
, A heat-sterilized, packaged coffee beverage having a non-epimeric content in non-polymer catechins of 35 to 90% by weight and a pH of 6.0 to 6.4.
非重合体カテキン類(A)が、緑茶由来である請求項1記載の容器詰コーヒー飲料。The packaged coffee beverage according to claim 1, wherein the non-polymer catechins (A) are derived from green tea. さらにトリグリセリド50mg〜6500mg/100mLを含有するものである請求項1又は2記載の容器詰コーヒー飲料。The packaged coffee beverage according to claim 1, further comprising 50 mg to 6500 mg / 100 mL of triglyceride.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009153410A (en) * 2007-12-25 2009-07-16 Nestle Japan Ltd Beverage comprising cream added thereto
JP2017113032A (en) * 2017-03-24 2017-06-29 花王株式会社 Container-packed beverage
JP2017112968A (en) * 2015-12-25 2017-06-29 花王株式会社 Container-packed beverage
US9750275B2 (en) 2013-07-12 2017-09-05 Kao Corporation Packed beverage
WO2018100864A1 (en) * 2016-11-29 2018-06-07 花王株式会社 Beverage powder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009153410A (en) * 2007-12-25 2009-07-16 Nestle Japan Ltd Beverage comprising cream added thereto
JP4662971B2 (en) * 2007-12-25 2011-03-30 ネスレ日本株式会社 Cream additive beverage
US9750275B2 (en) 2013-07-12 2017-09-05 Kao Corporation Packed beverage
JP2017112968A (en) * 2015-12-25 2017-06-29 花王株式会社 Container-packed beverage
WO2018100864A1 (en) * 2016-11-29 2018-06-07 花王株式会社 Beverage powder
JP2017113032A (en) * 2017-03-24 2017-06-29 花王株式会社 Container-packed beverage

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