JP2005021051A - Method for producing coffee milk beverage - Google Patents

Method for producing coffee milk beverage Download PDF

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JP2005021051A
JP2005021051A JP2003188435A JP2003188435A JP2005021051A JP 2005021051 A JP2005021051 A JP 2005021051A JP 2003188435 A JP2003188435 A JP 2003188435A JP 2003188435 A JP2003188435 A JP 2003188435A JP 2005021051 A JP2005021051 A JP 2005021051A
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Japan
Prior art keywords
coffee
milk
stored
sweetened
liquid
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JP2003188435A
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Japanese (ja)
Inventor
Nobuhiro Oka
信宏 岡
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OHAYO DAIRY PRODUCT
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OHAYO DAIRY PRODUCT
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for easily producing a coffee milk beverage having good flavor, where heating reaction of dairy components and sweetened coffee liquid to each other is prevented, and deterioration in coffee flavor and taste is prevented. <P>SOLUTION: The method for producing coffee milk beverage comprises the following processes: a process of cooling storage after sterilizing the dairy components having no emulsifier added; a process of extracting the coffee liquid separately, adding saccharides without adding any emulsifier followed by sterilizing the coffee liquid, and subjecting the liquid to cooling storage; and a fractionally charging process where the dairy components subjected to cooling storage and the sweetened coffee liquid subjected to cooling storage are mixed together while charging them into a vessel without preliminarily mixing them in a tank. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、コーヒー乳飲料の製造方法に関するものであり、さらに詳しくは、特にプラスチック容器や紙容器に充填される、賞味期限の短いいわゆるチルド商品に利用できるコーヒー乳飲料の製造方法に関するものである。
【0002】
【従来の技術】
従来、賞味期限の短い、いわゆるチルド商品に分類されるコーヒー乳飲料の製造においては、まず乳成分と加糖コーヒー液とを調合タンク内で混合した後、殺菌が施され、殺菌された乳成分と加糖コーヒー液からなる混合液を容器に充填するという工程がとられてきた。
通常このような方法においては、乳成分あるいはコーヒー液に由来する汚染菌の増殖を抑える為に、乳成分と加糖コーヒー液からなる混合液に対しては過剰な条件、例えば130℃で2秒間といった殺菌処理が施されている。しかしながらこの場合、乳成分と加糖コーヒー液の加熱反応やタンク内での物理的な混合・撹拌がコーヒー成分の酸化を早め、風味劣化をきたす原因になっている。
【0003】
また、乳成分だけをあらかじめ殺菌し、その後コーヒー液と混合する方法も従来技術としてよく用いられているが、この場合においても乳成分と未殺菌のコーヒー液が混ざり合ったあとでは微生物が増殖する危険性があることから、通常は充填前に混合液を再度120〜130℃で2秒間殺菌する工程が採られている。
しかし、この方法においても乳成分とコーヒー液からなる混合液には過剰な熱がかかるため、風味の劣化は避けられないのである。
【0004】
そこでこの風味劣化の問題を解決するため、乳成分とコーヒー液を個別のライン上で殺菌処理する方法が考えられている(特許文献1、特許文献2参照)。この方法では乳成分とコーヒー液は混合液の状態で加熱殺菌されないので、両成分の熱による化学的変化は抑えられるという利点はあるものの、殺菌後に乳成分とコーヒー液を貯蔵タンク内で混合する工程が採られており、そのためタンク内での混合・撹拌がコーヒー成分の酸化反応を促進し、コーヒー風味の劣化をきたす原因の一つになっている。
【0005】
【特許文献1】
特開2000−175624号公報
【特許文献2】
特開2003−24022号公報
【0006】
【課題を解決しようとする課題】
本発明の目的は、特にプラスチック容器や紙容器に充填される、賞味期限の短いいわゆるチルド商品に利用できるコーヒー乳飲料の製造方法であって、殺菌処理を十分に施すが、乳成分と加糖コーヒー液の加熱反応を防止するとともに、コーヒー成分の酸化反応を起こすタンク内での物理的な混合・撹拌を行わず、コーヒーの香り・味の劣化を防止した風味のよいコーヒー乳飲料を容易に製造する方法を提供することである。
【0007】
【課題を解決するための手段】
そこで前記課題を解決するため本発明者は鋭意研究した結果、乳化剤を添加しない乳成分と加糖コーヒー液とを別々に殺菌後、冷却貯蔵し、そして冷却貯蔵した乳成分と加糖コーヒー液を容器に充填する時に容器内に充填しながら混合することによって、上記の課題が解決できることを見出し、本発明に至った。
【0008】
すなわち、本発明の請求項1は、乳化剤を添加しない乳成分を殺菌した後、冷却貯蔵する工程と、別途コーヒー液を抽出し、乳化剤を添加せず、糖分を加えた後殺菌を行い、冷却貯蔵する工程と、前記冷却貯蔵した乳成分と前記冷却貯蔵した加糖コーヒー液をあらかじめタンク内にて混合することなく、前記冷却貯蔵した乳成分と前記冷却貯蔵した加糖コーヒー液を容器に充填する時に、容器内に充填しながら混合する分別充填工程と、を有することを特徴とするコーヒー乳飲料の製造方法である。
【0009】
本発明においては、乳化剤を添加しない乳成分と加糖コーヒー液とを別々に殺菌するので、乳成分の凝集などが生じない上、乳成分と加糖コーヒー液の加熱反応を防止できるとともにそれぞれの殺菌処理を十分に施すことができ、タンク内での物理的な混合・撹拌を行わないのでコーヒー成分の酸化反応を防止でき、かつ、十分に殺菌処理を施した乳成分と加糖コーヒー液とを別々に冷却貯蔵するので、乳成分と加糖コーヒー液との反応やコーヒー成分の酸化反応を防止でき、そして冷却貯蔵した乳成分と冷却貯蔵した加糖コーヒー液を容器に充填する時に、容器内に充填しながら混合するようにしたので、乳化剤などの添加が不要であり、乳化剤やpH調整剤などの安定剤に起因する風味への悪影響を避けて、コーヒーの香り・味の劣化を防止した風味のよいコーヒー乳飲料を容易に製造することができる。
【0010】
本発明の請求項2は、請求項1記載のコーヒー乳飲料の製造方法において、前記乳成分が原乳を主成分とする乳成分であることを特徴とする。
【0011】
生クリーム、バター、脱脂粉乳などの乳成分を使用すると脂肪がうまく乳化分散しないので適宜乳化剤の使用が必要となる場合があるが、乳成分が原乳を主成分とする乳成分であると、乳化剤を添加しなくてもよりよく乳化できるので乳化剤に起因する風味への悪影響を避けることができる。
【0012】
本発明の請求項3は、請求項1あるいは請求項2記載のコーヒー乳飲料の製造方法において、乳成分を120〜130℃で2〜3秒間殺菌し、加糖コーヒー液を110〜120℃で2〜3秒間殺菌することを特徴とする。
【0013】
乳成分や加糖コーヒー液の劣化を防止しながら十分な殺菌処理を行うことができるので、より風味のよいコーヒー乳飲料を製造できる。
【0014】
【発明の実施の形態】
以下、本発明を詳細に説明する。
本発明の方法に使用する乳成分は、乳蛋白質および/または乳脂肪を含有するものであればいずれであってもよく特に限定されるものではなく、具体的には、生乳、牛乳、脱脂乳、部分脱脂乳、濃縮乳、脱脂濃縮乳、練乳、全粉乳、脱脂粉乳、乳清(ホエー)、乳清蛋白質濃縮物(WPC)、乳清蛋白質分離物(WPI)、全乳蛋白質濃縮物(TMP)、クリーム、クリームパウダー、ホエーパウダーなどを挙げることができる。
しかし乳成分が原乳を主成分とする乳成分であると、乳化剤を添加しなくてもよりよく乳化できるので本発明において好ましく使用できる。
【0015】
本発明の方法に使用するコーヒー液は焙煎済みコーヒー豆、その破砕物などのコーヒー原料から公知の装置、方法により抽出して製造される。コーヒー液の抽出を比較的低温度である100℃未満の温度、具体的には10〜95℃の温度の抽出媒体により行う場合が、100℃以上の温度の抽出媒体により行う場合と比較して、好ましくない風味成分が抽出されることがない点で優れているので、コーヒー液の抽出を100℃未満の温度の抽出媒体により行うことが望ましい。
【0016】
本発明においてコーヒー液に加える糖分としては、具体的には、例えば砂糖、ブドウ糖、果糖、乳糖、マルトース、パラチノース、フラクトオリゴ糖、ガラクトオリゴ糖、ラフィノーズなどの糖類、ソルビトール、マンニトール、マルチトール、キシリトール、エリスリトール、ラクチュロースなどの糖アルコール、グリチルリチン、ステビオサイド、レバウディオサイド、甜茶抽出物、甘茶抽出物などの天然甘味料、アスパルテームなどの人工甘味料を挙げることができ、コーヒー液への添加量は品種、味などに応じて適宜決めることが望ましい。
【0017】
本発明の方法において、乳成分および加糖コーヒー液の殺菌は、62℃で30分間加熱殺菌する方法と同等以上の殺菌効果を有する方法であればいずれの方法であってもよく、加熱殺菌方法、放射線殺菌方法、濾過除菌方法などを例示することができるが、高温短時間殺菌、超高温加熱殺菌などの加熱殺菌方法は、酸化反応を抑制できる上、経済的で安全性が高く、膜の目詰まりやファウリングなどがないので好ましい。
【0018】
乳成分の加熱殺菌は、前記殺菌効果が得られるように設定する必要がり、具体的には、120〜130℃で2〜3秒間殺菌して死滅させる例を挙げることができる。加熱温度および加熱時間が下限値未満であると殺菌が不十分となる恐れがあり、加熱温度および加熱時間が上限値を超えると殺菌は十分となるが変質する恐れがある。
加熱殺菌後は約5〜10℃程度に冷却貯蔵する。
【0019】
加糖コーヒー液の加熱殺菌も、前記殺菌効果が得られるように設定する必要がり、具体的には、110〜120℃で2〜3秒間殺菌して死滅させる例を挙げることができる。加熱温度および加熱時間が下限値未満であると殺菌が不十分となる恐れがあり、加熱温度および加熱時間が上限値を超えると香り、風味などが損なわれる恐れがある。
加糖コーヒー液の加熱殺菌について述べたが、コーヒー液に糖分を添加する前にコーヒー液を上記条件で加熱殺菌し、その後、殺菌した糖分を添加することもできる。
加熱殺菌後は約5〜10℃程度に冷却貯蔵する。
【0020】
本発明の方法においては、前記冷却貯蔵した乳成分と前記冷却貯蔵した加糖コーヒー液をあらかじめタンク内にて混合しない。本発明においてはタンク内での物理的な混合・撹拌を行わないので、コーヒー成分の酸化反応を防止できる。
本発明の方法においては、前記冷却貯蔵した乳成分と前記冷却貯蔵した加糖コーヒー液を瓶詰機、紙容器充填機などの公知の装置を使用して殺菌した容器に充填する時に、特別な攪拌装置などを用いずに容器内に両者を充填することにより混合する。
【0021】
例えば、各々のノズルから前記冷却貯蔵した乳成分と前記冷却貯蔵した加糖コーヒー液を殺菌した容器内に噴射して充填する時に両者がよく分散し混じり合って混合するように、ノズルからの充填方向をお互いに逆方向としたり、噴射量を制御したり、ノズルや容器などの構造を工夫したりすることが好ましい。また、各々のノズルから前記冷却貯蔵した乳成分と前記冷却貯蔵した加糖コーヒー液を約5〜10℃程度に保持しながら無菌的に無菌容器内に供給して充填しながら混合することが好ましい。無菌充填後は約5〜10℃程度に無菌的に冷却貯蔵し、出荷、輸送などすることが好ましい。
【0022】
本発明の方法により製造されるコーヒー乳飲料は、乳成分およびコーヒー液の本来の風味に影響をおよぼさない範囲で必要に応じて各成分に他の成分を含有することができる。その他の成分としては増粘多糖類、油脂、蛋白質、アミノ酸、有機酸、ビタミン、無機塩類などを挙げることができる。
【0023】
【実施例】
次に実施例および比較例を示し、本発明を具体的に説明するが、本発明はこれらの実施例に限定されるものではない。
(実施例1)
(コーヒー部の調製)
図1に示した手順にて、先ず焙煎コーヒー豆を計量し、次いで焙煎コーヒー豆を挽き、そして常法により挽いた焙煎コーヒー豆からコーヒー液を抽出・冷却した後、調合タンク内にて、コーヒー抽出液27.7kgに対して、砂糖4.1kgと水20.7kgを加えた。
続いて110℃で2秒間殺菌を施し、無菌タンクにて10℃以下で貯蔵・冷却した(これをコーヒー部とする)。
(ミルク部の調製)
一方、これとは異なるミルク部については、図1に示したように、先ず原乳を分離・清浄し、貯乳し、均質化したのち、130℃で2秒間殺菌した。その後、殺菌乳はコーヒー部とは別の無菌タンク内で10℃以下で貯蔵・冷却した(これをミルク部とする)。
さらにこのミルク部は、必要に応じて濃縮、均質化、殺菌(130℃、2秒間程度)処理することもできる。次に貯蔵・冷却したコーヒー部と貯蔵・冷却したミルク部は、別々のノズルを通じて52.5:47.5(質量比)の割合で殺菌した容器に無菌的に分別充填し、コーヒー乳飲料(試験飲料)を得た。得られたコーヒー乳飲料は無菌タンク内で10℃以下で貯蔵し、無菌的に取り扱って出荷するようにした。
実施例1で得られた試験飲料の味覚検査をパネリスト10名で実施した。その結果を表1に示す。
【0024】
(比較例1)
一方、対照品として従来法による比較のための乳入りコーヒー飲料を得た。すなわち、図2に示したように、先ず焙煎コーヒー豆を計量し、次いで、焙煎コーヒー豆を挽き、そして常法により挽いた焙煎コーヒー豆からコーヒー液を抽出・冷却した後、調合タンク内にて、コーヒー抽出液27.7kgに対して砂糖4.1kgと水20.7kgを加えたコーヒー部と、原乳を分離・清浄し、貯乳し、均質化した後、130℃で2秒間殺菌したミルク部を、52.5:47.5(質量比)の割合にて調合タンク内で混合した。
そして、この混合液を130℃で2秒間殺菌し、10℃以下で貯蔵した後、容器に充填することで比較のためのコーヒー飲料を得た(対照飲料1)。得られた比較のためのコーヒー乳飲料は無菌タンク内で10℃以下で貯蔵した。
比較例1で得られた対照飲料1の味覚検査を実施例1と同様にして実施し、その結果を表1に示す。
【0025】
(比較例2)
実施例1において、貯蔵・冷却したコーヒー部と貯蔵・冷却したミルク部を52.5:47.5(質量比)の割合で攪拌機を備えた無菌調合タンク内に導入して十分に混合、冷却貯蔵し、そして、殺菌した容器に充填した以外は実施例1と同様にして比較のためのコーヒー飲料を得た(対照飲料2)。比較例2で得られた対照飲料2の味覚検査を実施例1と同様にして実施し、その結果を表1に示す。
【0026】
(比較例3)
前記特許文献2の実施例1に記載の方法に従って比較のためのコーヒー飲料を得た(対照飲料3)。
比較例3で得られた対照飲料3の味覚検査を実施例1と同様にして実施し、その結果を表1に示す。
【0027】
【表1】

Figure 2005021051
【0028】
表1から、実施例1で得られた試験飲料と比較例1〜3で得られた対照飲料1〜3の味覚検査の結果、試験飲料のほうが対照品1〜3に比べてコーヒーの味・風味に優れていることが判る。
【0029】
【発明の効果】
本発明の請求項1は、乳化剤を添加しない乳成分を殺菌した後、冷却貯蔵する工程と、別途コーヒー液を抽出し、乳化剤を添加せず、糖分を加えた後殺菌を行い、冷却貯蔵する工程と、前記冷却貯蔵した乳成分と前記冷却貯蔵した加糖コーヒー液をあらかじめタンク内にて混合することなく、前記冷却貯蔵した乳成分と前記冷却貯蔵した加糖コーヒー液を容器に充填する時に、容器内に充填しながら混合する分別充填工程と、を有することを特徴とするコーヒー乳飲料の製造方法であり、
乳化剤を添加しない乳成分と加糖コーヒー液とを別々に殺菌するので、乳成分の凝集などが生じない上、乳成分と加糖コーヒー液の加熱反応を防止できるとともにそれぞれの殺菌処理を十分に施すことができ、タンク内での物理的な混合・撹拌を行わないのでコーヒー成分の酸化反応を防止でき、かつ、十分に殺菌処理を施した乳成分と加糖コーヒー液とを別々に冷却貯蔵するので、乳成分と加糖コーヒー液との反応やコーヒー成分の酸化反応を防止でき、そして冷却貯蔵した乳成分と冷却貯蔵した加糖コーヒー液を容器に充填する時に、容器内に充填しながら混合するようにしたので、乳化剤などの添加が不要であり、乳化剤やpH調整剤などの安定剤に起因する風味への悪影響を避けて、コーヒーの香り・味の劣化を防止した風味のよいコーヒー乳飲料を容易に製造できるという顕著な効果を奏する。
【0030】
本発明の請求項2は、請求項1記載のコーヒー乳飲料の製造方法において、前記乳成分が原乳を主成分とする乳成分であることを特徴とするものであり、生クリーム、バター、脱脂粉乳などの乳成分を使用すると脂肪がうまく乳化分散しないので適宜乳化剤の使用が必要となる場合があるが、乳成分が原乳を主成分とする乳成分であると、乳化剤を添加しなくてもよりよく乳化できるので乳化剤に起因する風味への悪影響を避けることができるというさらなる顕著な効果を奏する。
【0031】
本発明の請求項3は、請求項1あるいは請求項2記載のコーヒー乳飲料の製造方法において、乳成分を120〜130℃で2〜3秒間殺菌し、加糖コーヒー液を110〜120℃で2〜3秒間殺菌することを特徴とするものであり、乳成分や加糖コーヒー液の劣化を防止しながら十分な殺菌処理を行うことができるので、より風味のよいコーヒー乳飲料を製造できるというさらなる顕著な効果を奏する。
【図面の簡単な説明】
【図1】本発明によるコーヒー乳飲料の製造に係る工程の説明図である。
【図2】従来のコーヒー乳飲料の製造に係る工程の説明図である。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for producing a coffee milk beverage, and more particularly to a method for producing a coffee milk beverage that can be used for a so-called chilled product with a short shelf life, particularly filled in a plastic container or a paper container. .
[0002]
[Prior art]
Conventionally, in the production of coffee milk beverages classified as so-called chilled products with a short shelf life, first the milk component and the sweetened coffee liquid are mixed in the preparation tank, then sterilized, and the sterilized milk component A process of filling a container with a mixed liquid made of sweetened coffee liquid has been taken.
Usually, in such a method, in order to suppress the growth of contaminating bacteria derived from milk components or coffee liquor, excessive conditions such as 2 seconds at 130 ° C. for the mixed solution of milk components and sweetened coffee liquor Sterilized. However, in this case, the heating reaction of the milk component and the sweetened coffee liquid and the physical mixing / stirring in the tank accelerate the oxidation of the coffee component and cause deterioration of the flavor.
[0003]
In addition, a method in which only milk components are sterilized in advance and then mixed with coffee liquid is often used as a conventional technique, but in this case, microorganisms grow after the milk components and unsterilized coffee liquid are mixed. Since there is a danger, usually, a step of sterilizing the mixed solution again at 120 to 130 ° C. for 2 seconds before filling is employed.
However, in this method, too much heat is applied to the mixed liquid composed of the milk component and the coffee liquid, so that the deterioration of the flavor is inevitable.
[0004]
Therefore, in order to solve this problem of flavor deterioration, a method of sterilizing milk components and coffee liquid on separate lines has been considered (see Patent Document 1 and Patent Document 2). In this method, the milk component and the coffee liquor are not sterilized by heating in the state of a mixed solution, so there is an advantage that the chemical change due to heat of both components can be suppressed, but the dairy component and the coffee liquor are mixed in the storage tank after sterilization. Therefore, mixing / stirring in the tank promotes the oxidation reaction of the coffee components, which is one of the causes of coffee flavor deterioration.
[0005]
[Patent Document 1]
JP 2000-175624 A [Patent Document 2]
Japanese Patent Application Laid-Open No. 2003-24022
[Problems to be solved]
An object of the present invention is a method for producing a coffee milk beverage that can be used for so-called chilled products with a short shelf life, particularly filled in plastic containers and paper containers, and is sufficiently subjected to sterilization treatment. Easily produce savory coffee milk beverages that prevent the heat reaction of the liquid and prevent physical deterioration in the aroma and taste of the coffee without physically mixing and stirring in the tank that causes the oxidation reaction of the coffee components Is to provide a way to do.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present inventor has intensively studied. As a result, the milk component to which the emulsifier is not added and the sweetened coffee liquid are sterilized separately, and then cooled and stored. The present inventors have found that the above problems can be solved by mixing while filling in a container when filling, and have reached the present invention.
[0008]
That is, claim 1 of the present invention includes a step of sterilizing a milk component to which no emulsifier is added and then refrigerated storage, separately extracting coffee liquid, adding an emulsifier without adding an emulsifier, and sterilizing after cooling. A step of storing, and when the chilled and stored milk components and the chilled and stored sweetened coffee liquid are filled in a container without previously mixing the chilled and stored milk components and the stored and stored sweetened coffee liquid in a tank. And a fractional filling step of mixing while filling in a container.
[0009]
In the present invention, the milk component to which the emulsifier is not added and the sweetened coffee liquid are sterilized separately, so that aggregation of the milk component does not occur and the heating reaction of the milk component and the sweetened coffee liquid can be prevented and each sterilization treatment can be performed. Can be applied sufficiently, and since the physical mixing and stirring in the tank is not performed, the oxidation reaction of the coffee component can be prevented, and the milk component that has been sufficiently sterilized and the sweetened coffee liquid are separated separately. Because it is cooled and stored, the reaction between the milk component and the sweetened coffee liquid and the oxidation reaction of the coffee component can be prevented, and when filling the container with the cold-stored milk component and the cold-stored sweetened coffee liquid, Since it is mixed, there is no need to add an emulsifier, etc., avoiding adverse effects on the flavor caused by stabilizers such as emulsifiers and pH adjusters, and reducing the aroma and taste of coffee The sealed flavor good coffee milk beverage can be easily manufactured.
[0010]
According to a second aspect of the present invention, in the method for producing a coffee milk beverage according to the first aspect, the milk component is a milk component mainly composed of raw milk.
[0011]
When using milk components such as fresh cream, butter, skim milk powder, fat does not emulsify and disperse well, so it may be necessary to use an emulsifier as appropriate, but if the milk component is a milk component based on raw milk, Since it can emulsify better without adding an emulsifier, adverse effects on the flavor caused by the emulsifier can be avoided.
[0012]
According to a third aspect of the present invention, in the method for producing a coffee milk beverage according to the first or second aspect, the milk component is sterilized at 120 to 130 ° C. for 2 to 3 seconds, and the sweetened coffee liquid is heated at 110 to 120 ° C. for 2 seconds. It is characterized by sterilizing for ~ 3 seconds.
[0013]
Since sufficient sterilization treatment can be performed while preventing deterioration of milk components and sweetened coffee liquid, a coffee milk beverage having a better flavor can be produced.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail.
The milk component used in the method of the present invention is not particularly limited as long as it contains milk protein and / or milk fat. Specifically, raw milk, milk, skim milk , Partially skim milk, concentrated milk, skim milk concentrate, condensed milk, whole milk powder, skim milk powder, whey, whey protein concentrate (WPC), whey protein isolate (WPI), whole milk protein concentrate ( TMP), cream, cream powder, whey powder and the like.
However, if the milk component is a milk component mainly composed of raw milk, it can be preferably used in the present invention because it can be emulsified better without adding an emulsifier.
[0015]
The coffee liquor used in the method of the present invention is produced by extracting from a coffee raw material such as roasted coffee beans and crushed products thereof using a known apparatus and method. The case where the extraction of the coffee liquid is performed with an extraction medium having a relatively low temperature of less than 100 ° C., specifically, a temperature of 10 to 95 ° C., is compared with the case where the extraction is performed with an extraction medium having a temperature of 100 ° C. Since it is excellent in that undesirable flavor components are not extracted, it is desirable to extract the coffee liquid with an extraction medium having a temperature of less than 100 ° C.
[0016]
Specific examples of sugars added to the coffee liquid in the present invention include sugars such as sugar, glucose, fructose, lactose, maltose, palatinose, fructooligosaccharides, galactooligosaccharides, and raffinose, sorbitol, mannitol, maltitol, xylitol, and erythritol. , Sugar alcohols such as lactulose, glycyrrhizin, stevioside, rebaudioside, strawberry tea extract, natural sweeteners such as sweet tea extract, artificial sweeteners such as aspartame, etc. It is desirable to decide appropriately according to the taste and the like.
[0017]
In the method of the present invention, the sterilization of the milk component and the sweetened coffee liquid may be any method as long as it has a sterilization effect equivalent to or higher than the method of heat sterilization at 62 ° C. for 30 minutes. Examples include radiation sterilization methods and filtration sterilization methods, but heat sterilization methods such as high temperature short time sterilization and ultra high temperature heat sterilization can suppress oxidation reaction and are economical and highly safe. This is preferable because there is no clogging or fouling.
[0018]
The heat sterilization of the milk component needs to be set so as to obtain the sterilizing effect. Specifically, examples include sterilization at 120 to 130 ° C. for 2 to 3 seconds to kill. If the heating temperature and the heating time are less than the lower limit values, sterilization may be insufficient. If the heating temperature and the heating time exceeds the upper limit values, sterilization is sufficient but there is a risk of deterioration.
After heat sterilization, cool and store at about 5-10 ° C.
[0019]
The heat sterilization of the sweetened coffee liquid also needs to be set so that the above-mentioned sterilization effect can be obtained. Specifically, an example of sterilization at 110 to 120 ° C. for 2 to 3 seconds can be given. If the heating temperature and the heating time are less than the lower limit, sterilization may be insufficient, and if the heating temperature and the heating time exceed the upper limit, aroma, flavor, and the like may be impaired.
Although the heat sterilization of the sweetened coffee liquid has been described, it is also possible to heat sterilize the coffee liquid under the above conditions before adding sugar to the coffee liquid, and then add the sterilized sugar.
After heat sterilization, cool and store at about 5-10 ° C.
[0020]
In the method of the present invention, the cold-stored milk component and the cold-stored sweetened coffee liquid are not mixed in advance in the tank. In the present invention, the physical mixing and stirring in the tank is not performed, so that the oxidation reaction of the coffee component can be prevented.
In the method of the present invention, when the chilled and stored milk component and the chilled and stored sweetened coffee liquid are filled into a sterilized container using a known device such as a bottling machine or a paper container filling machine, a special stirring device is used. Mix by filling both in a container without using.
[0021]
For example, the direction of filling from the nozzles is such that when the chilled and stored milk components and the chilled and stored sweetened coffee liquid are sprayed from each nozzle into a sterilized container and filled, the two are well dispersed and mixed and mixed. It is preferable to reverse the directions to each other, to control the injection amount, and to devise the structure of the nozzle and the container. Moreover, it is preferable to mix as it is aseptically supplied and filled in the aseptic container while maintaining the chilled and stored milk components and the chilled and stored sweetened coffee liquid at about 5 to 10 ° C. from each nozzle. After aseptic filling, it is preferable to aseptically cool and store at about 5 to 10 ° C., and ship, transport, etc.
[0022]
The coffee milk beverage produced by the method of the present invention can contain other components as necessary in a range that does not affect the original flavor of the milk component and the coffee liquor. Examples of other components include thickening polysaccharides, fats and oils, proteins, amino acids, organic acids, vitamins, and inorganic salts.
[0023]
【Example】
EXAMPLES Next, although an Example and a comparative example are shown and this invention is demonstrated concretely, this invention is not limited to these Examples.
(Example 1)
(Preparation of coffee part)
In the procedure shown in FIG. 1, the roasted coffee beans are first weighed, then the roasted coffee beans are ground, and the coffee liquid is extracted and cooled from the roasted coffee beans ground by a conventional method. Then, 4.1 kg of sugar and 20.7 kg of water were added to 27.7 kg of the coffee extract.
Subsequently, it was sterilized at 110 ° C. for 2 seconds, and stored and cooled at 10 ° C. or less in an aseptic tank (this is referred to as a coffee part).
(Preparation of milk part)
On the other hand, as shown in FIG. 1, the milk portion different from this was first separated and cleaned, stored, homogenized, and sterilized at 130 ° C. for 2 seconds. Thereafter, the sterilized milk was stored and cooled at 10 ° C. or less in an aseptic tank separate from the coffee part (this is the milk part).
Furthermore, this milk part can be concentrated, homogenized, and sterilized (at 130 ° C. for about 2 seconds) as necessary. Next, the stored and cooled coffee part and the stored and cooled milk part are aseptically filled into sterilized containers at a ratio of 52.5: 47.5 (mass ratio) through separate nozzles, and coffee milk beverages ( Test drink) was obtained. The obtained coffee milk beverage was stored in an aseptic tank at 10 ° C. or lower, handled aseptically and shipped.
A taste test of the test beverage obtained in Example 1 was conducted by 10 panelists. The results are shown in Table 1.
[0024]
(Comparative Example 1)
On the other hand, a milk-containing coffee drink for comparison by a conventional method was obtained as a control product. That is, as shown in FIG. 2, the roasted coffee beans are first weighed, then the roasted coffee beans are ground, and the coffee liquid is extracted and cooled from the roasted coffee beans that have been ground by a conventional method. Inside, the coffee part of 27.7 kg of coffee extract with 4.1 kg of sugar and 20.7 kg of water, and the raw milk was separated, cleaned, stored, homogenized, and then 2 The milk part sterilized for 2 seconds was mixed in the preparation tank at a ratio of 52.5: 47.5 (mass ratio).
The mixture was sterilized at 130 ° C. for 2 seconds, stored at 10 ° C. or lower, and then filled into a container to obtain a coffee beverage for comparison (control beverage 1). The resulting coffee coffee beverage for comparison was stored at 10 ° C. or lower in a sterile tank.
A taste test of the control beverage 1 obtained in Comparative Example 1 was performed in the same manner as in Example 1, and the results are shown in Table 1.
[0025]
(Comparative Example 2)
In Example 1, the stored / cooled coffee part and the stored / cooled milk part were introduced into an aseptic preparation tank equipped with a stirrer at a ratio of 52.5: 47.5 (mass ratio) and sufficiently mixed and cooled. A coffee beverage for comparison was obtained in the same manner as in Example 1 except that it was stored and filled in a sterilized container (control beverage 2). A taste test of the control beverage 2 obtained in Comparative Example 2 was performed in the same manner as in Example 1, and the results are shown in Table 1.
[0026]
(Comparative Example 3)
A coffee beverage for comparison was obtained according to the method described in Example 1 of Patent Document 2 (control beverage 3).
A taste test of the control beverage 3 obtained in Comparative Example 3 was performed in the same manner as in Example 1, and the results are shown in Table 1.
[0027]
[Table 1]
Figure 2005021051
[0028]
From Table 1, as a result of the taste test of the test beverage obtained in Example 1 and the control beverages 1 to 3 obtained in Comparative Examples 1 to 3, the test beverage had a coffee taste / It turns out that it is excellent in flavor.
[0029]
【The invention's effect】
Claim 1 of the present invention is a step of sterilizing milk components to which no emulsifier is added and then refrigerated and storing, separately extracting coffee liquid, adding an emulsifier without adding an emulsifier, sterilizing, and storing refrigerated A step of filling the container with the cold-stored milk component and the cold-stored sweetened coffee liquid without mixing the cold-stored milk component and the cold-stored sweetened coffee liquid in a tank in advance. A method for producing a coffee milk beverage characterized by having a separate filling step of mixing while filling in
The milk component without added emulsifier and the sweetened coffee liquor are sterilized separately, so that the milk components do not aggregate and the heat reaction between the milk component and the sweetened coffee liquor can be prevented and each sterilization treatment must be sufficiently applied. Since it does not physically mix and agitate in the tank, the oxidation reaction of the coffee component can be prevented, and the sterilized milk component and the sweetened coffee liquid are separately cooled and stored, The reaction between milk components and sweetened coffee liquor and the oxidation reaction of coffee components can be prevented, and when the cold-stored milk components and cold-stored sweetened coffee liquor are filled into a container, mixing is performed while filling the container. Therefore, it is not necessary to add an emulsifier, etc., avoiding adverse effects on the flavor caused by stabilizers such as emulsifiers and pH adjusters, and preventing the deterioration of the aroma and taste of coffee A marked effect of the Hi milk beverage can be easily manufactured.
[0030]
Claim 2 of the present invention is the method for producing a coffee milk beverage according to claim 1, characterized in that the milk component is a milk component mainly composed of raw milk, fresh cream, butter, When milk components such as skim milk are used, fats do not emulsify and disperse well, so it may be necessary to use an emulsifier as appropriate.If the milk component is a milk component mainly composed of raw milk, no emulsifier is added. However, since it can be emulsified better, there is a further remarkable effect that an adverse effect on the flavor caused by the emulsifier can be avoided.
[0031]
According to a third aspect of the present invention, in the method for producing a coffee milk beverage according to the first or second aspect, the milk component is sterilized at 120 to 130 ° C. for 2 to 3 seconds, and the sweetened coffee liquid is heated at 110 to 120 ° C. for 2 seconds. It is characterized by being sterilized for 3 seconds, and can be sufficiently sterilized while preventing deterioration of milk components and sweetened coffee liquor, so that a more flavorful coffee milk beverage can be produced. Has an effect.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an explanatory diagram of processes relating to the production of a coffee milk beverage according to the present invention.
FIG. 2 is an explanatory diagram of processes related to the production of a conventional coffee milk beverage.

Claims (3)

乳化剤を添加しない乳成分を殺菌した後、冷却貯蔵する工程と、別途コーヒー液を抽出し、乳化剤を添加せず、糖分を加えた後殺菌を行い、冷却貯蔵する工程と、前記冷却貯蔵した乳成分と前記冷却貯蔵した加糖コーヒー液をあらかじめタンク内にて混合することなく、前記冷却貯蔵した乳成分と前記冷却貯蔵した加糖コーヒー液を容器に充填する時に、容器内に充填しながら混合する分別充填工程と、を有することを特徴とするコーヒー乳飲料の製造方法。A step of sterilizing milk components to which no emulsifier is added and then refrigerated and storing, a step of separately extracting coffee liquid, adding an emulsifier without adding an emulsifier, sterilizing and storing refrigerated, and the refrigerated and stored milk Fractionating and mixing the chilled and stored milk components and the chilled and stored sweetened coffee liquid in the container without mixing the ingredients and the chilled and stored sweetened coffee liquid in the tank in advance A method for producing a coffee milk beverage, comprising: a filling step. 前記乳成分が原乳を主成分とする乳成分であることを特徴とする請求項1記載のコーヒー乳飲料の製造方法。The method for producing a coffee milk beverage according to claim 1, wherein the milk component is a milk component mainly composed of raw milk. 乳成分を120〜130℃で2〜3秒間殺菌し、加糖コーヒー液を110〜120℃で2〜3秒間殺菌することを特徴とする請求項1あるいは請求項2記載のコーヒー乳飲料の製造方法。The method for producing a coffee milk beverage according to claim 1 or 2, wherein the milk component is sterilized at 120 to 130 ° C for 2 to 3 seconds, and the sweetened coffee liquid is sterilized at 110 to 120 ° C for 2 to 3 seconds. .
JP2003188435A 2003-06-30 2003-06-30 Method for producing coffee milk beverage Pending JP2005021051A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006211931A (en) * 2005-02-02 2006-08-17 Asahi Soft Drinks Co Ltd Method for producing packaged carbonated beverage
JP2013527750A (en) * 2010-03-08 2013-07-04 ザ コカ・コーラ カンパニー Aseptic feeding system
JP2015133930A (en) * 2014-01-17 2015-07-27 花王株式会社 Coffee drink packed in container
WO2016076326A1 (en) * 2014-11-11 2016-05-19 株式会社明治 Method for manufacturing weakly acidic milk drink
KR101821802B1 (en) 2016-04-06 2018-01-24 주식회사 위드오 Fabrication of mixed beverage with cold brew coffee and fruit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006211931A (en) * 2005-02-02 2006-08-17 Asahi Soft Drinks Co Ltd Method for producing packaged carbonated beverage
JP2013527750A (en) * 2010-03-08 2013-07-04 ザ コカ・コーラ カンパニー Aseptic feeding system
JP2015133930A (en) * 2014-01-17 2015-07-27 花王株式会社 Coffee drink packed in container
WO2016076326A1 (en) * 2014-11-11 2016-05-19 株式会社明治 Method for manufacturing weakly acidic milk drink
JP2016086789A (en) * 2014-11-11 2016-05-23 株式会社明治 Slightly acidic milk beverage production method
KR101821802B1 (en) 2016-04-06 2018-01-24 주식회사 위드오 Fabrication of mixed beverage with cold brew coffee and fruit

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