JP3732666B2 - Cheese-like food with excellent spinnability and heat resistance, and method for producing the same - Google Patents

Cheese-like food with excellent spinnability and heat resistance, and method for producing the same Download PDF

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Publication number
JP3732666B2
JP3732666B2 JP01419399A JP1419399A JP3732666B2 JP 3732666 B2 JP3732666 B2 JP 3732666B2 JP 01419399 A JP01419399 A JP 01419399A JP 1419399 A JP1419399 A JP 1419399A JP 3732666 B2 JP3732666 B2 JP 3732666B2
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Prior art keywords
spinnability
cheese
sample
test
heat resistance
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JP2000210015A (en
Inventor
守 冨田
一吉 外山
一慶 土井
朝士 今川
力 工藤
雅久 藤本
庸子 伊藤
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Morinaga Milk Industry Co Ltd
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Morinaga Milk Industry Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、ホエ−蛋白分離物[ホエ−蛋白を90%(重量)以上含有する。Whey protein isolate。以下、WPIと略記する。]及びナチュラル・チ−ズの混合物を主原料として、加熱、殺菌、乳化した加熱調理時に優れた曳糸性を有し、2回以上加熱しても曳糸性の劣化度合いの小さい加熱耐性のあるチ−ズ様食品、並びにその製造方法に関するものである。
【0002】
【従来の技術】
原料チーズを加熱し、殺菌し、乳化し、曳糸性又は糸引性を有するチ−ズの製造方法としては、多くの発明が開示されている(例えば、特開昭62−285755号公報、特開平1−218548号公報、特開平2−92239号公報、特開平4−200348号公報、特開平4−218334号公報、特開平5−91834号公報、特開平5−123104号公報等)。
【0003】
また、WPIを用いたチ−ズ様食品及びその製造法に関しても多くの発明が開示されている(例えば、特開昭63−230037号公報、特開昭63−109736号公報、特開平1−148148号公報、特開平2−23830号公報、特開平2−308756号公報等)がある。
【0004】
前記従来の各製法により、曳糸性及び/又は糸引性を有するチ−ズ様食品を製造し得るが、従来法により得られた製品は、2回の加熱によりオイルオフの増加、硬度の増加等、物性が大きく変化し、ガム状の食感となり製品の価値が著しく低下した。
【0005】
即ち、プロセスチ−ズ様のチ−ズ類を製造するためには、離水防止、過度のオイルオフの抑制、製造時の曳糸性の防止のために、乳化剤が使用されており、このため、得られたプロセスチ−ズ様のチ−ズ類は、曳糸性が不良であり、ナチュラルチ−ズ様の食感は、得られず、再加熱に対する耐性も極めて脆弱であった。従って、従来の製造法及び製品においては調理等に使用し、2回以上の加熱を行う場合には、不都合があった。
【0006】
【発明が解決しようとする課題】
本発明者らは、前記従来の製造方法及び配合では、製造することのできない、2回以上の加熱をしても曳糸性が良好であるとともに、食感が1回加熱製品と比較しても遜色ないプロセスチ−ズ様のチ−ズ類及びその製造法について、チ−ズ原料、製造工程を各方面から鋭意研究した結果、本発明を完成するに至った。
【0007】
本発明は、細菌的に安全なプロセスチ−ズ様のチ−ズ類でありながら、ナチュラルチ−ズの食感を有し、2回以上加熱した場合であっても、曳糸性及び加熱耐性に優れたチ−ズ様食品、並びにその製造法を提供する。
【0008】
【課題を解決するための手段】
前記課題を解決する本発明の第一の発明は、ナチュラル・チ−ズ100部(重量)に、ホエ−蛋白分離物を0.1〜20部(重量)の割合で添加して混合し、加熱し、殺菌し、乳化し、のち乳化物に引っ張り強度0.01kgf〜10kgfを加えながら急冷し、0.5〜10分間以内に25℃以下の品温に低下させることを特徴とする曳糸性及び加熱耐性に優れたチ−ズ様食品の製造法である。
【0009】
前記課題を解決する本発明の第二の発明は、本発明の製造法により得られる曳糸性及び加熱耐性に優れたチ−ズ様食品である。
【0010】
【発明の実施の形態】
次に本発明について詳細に説明するが、本発明の理解を容易にするために、最初に本発明の第の発明から説明する。
【0011】
本発明の方法において原料として使用するナチュラル・チ−ズは、熟成が十分進んでいないナチュラル・チ−ズ、又は熟成が進んだナチュラル・チ−ズのいずれも使用が可能である。熟成が十分進んでいないナチュラル・チ−ズとしては、モザレラチーズ、フローズン・チェダーチーズ、スカモルツァ・チーズ等を例示することができる。また、熟成が進んだナチュラル・チ−ズとしては、シャープチェダーチーズ、ゴーダチーズ、パルメザンチーズ、グリエールチーズ等を例示することができる。更に、これらのナチュラル・チ−ズを適宜混合して使用することも可能である。
【0012】
本発明の方法において原料として使用するWPIは、ホエ−蛋白含量が90%(重量。以下、特に断わりのない限り同じ。)以上であり、ホエ−蛋白質を高い割合で含有している製品であり、市販品を使用することもできる。また、公知の方法(例えば、月刊フードケミカル、第7巻、第2号、第68ページ、1991年等)によりホエーから製造することも可能である。ホエ−蛋白含量が90%未満の場合は、後記する試験例1から明らかなとおり、所望の曳糸性が得られない。
【0013】
前記のナチュラル・チ−ズ100部に対してWPI0.1〜20部を添加して均一に混合し、加熱し、殺菌し、乳化する。必要に応じて、食塩、安定剤、着色料等通常のプロセスチ−ズの製造に使用される副原料を添加することも可能である。
【0014】
次いで、乳化した混合物を急冷するが、この急冷工程において、引っ張り強度0.01〜10kgfの力を加えながら急冷し、0.5〜10分間以内に品温を25℃以下にするのが、本発明の方法における大きな特徴である。
【0015】
後記する試験例から明らかなとおり、急冷時における引っ張り強度が0.01〜10kgfの範囲外の場合、曳糸性が極端に低下し、引っ張り強度が0.1〜10kgfの範囲内、特に0.1〜1kgfの範囲内、において曳糸性が極めて良好である。
【0016】
後記する試験例から明らかなとおり、急冷時における冷却時間が、0.5〜10分間の範囲内で品温を25℃以下に調整した場合、曳糸性が良好であり、特に冷却時間が、0.5〜5分間の範囲内で品温を25℃以下に調整した場合、曳糸性が極めて良好となる。これに対して前記の範囲外の場合には、曳糸性が極端に低下する。
【0017】
尚、乳化した混合物を25℃以下の温度に冷却することは、当該技術分野において周知の事項であるが、引っ張り強度を与えて短時間に急冷することは、従来にない新規な工程である。
【0018】
次に本発明の第の発明について説明する。以上の方法により製造された本発明の曳糸性及び加熱耐性に優れたチ−ズ様食品は、2回以上加熱した場合であっても、曳糸性が保持されており、ナチュラル・チーズと同様の食感を有し、かつナチュラル・チ−ズと同様の物性が維持されており、調理に使用した場合極めて優れた性能を発揮する。即ち、オイルオフ等がなく、曳糸性があるので、使用目的に十分対応し得るのである。
【0019】
更に、本発明の曳糸性及び加熱耐性に優れたチ−ズ様食品は、各種加工(例えば、シュレッド等)においても優れた性能を有している。
【0020】
以上説明したとおり、本発明は、従来当該技術分野において存在しない、優れた物性を有する新規なチーズ様食品及びその製造法である。
【0021】
次に試験例を示して本発明を詳述する。
【0022】
試験例1
この試験は、各種添加物がチーズの曳糸性に及ぼす影響を調べるために行った。
【0023】
1)試料の調製
表1に示す添加割合でWPIを添加したことを除き、実施例1と同一の方法により製造した試料(試料1)、表1に示す添加割合でホエー蛋白濃縮物[ドイツのミライ社製。ホエー蛋白を70%含有する。whey protein concentrate。以下、WPCと略記する。)を添加したことを除き、実施例1と同一の方法により製造した試料(試料2)及び表1に示す添加割合でカゼイン(ニュージーランド・デイリー・ボード製。蛋白質を95%含有する。)を添加したことを除き、実施例1と同一の方法により製造した試料(試料3)を、それぞれ調製した。
【0024】
2)試験方法
耐熱性シャーレの中央部にL型コーンを載置し、前記L型コーンの全底面に、各試料20gを載置し、これを約230℃で1分加熱し、のち30秒間室温に放置し、溶融した各試料をストログラフ(STROGRAPH:東洋精機社製。W型)により、L型コーンを10cm/秒の速度で垂直引き上げ、各試料が切断するまでの長さ(cm)を測定し、曳糸性を試験した。尚、本発明における曳糸性の表示は、全てこの試験方法によるものである。
【0025】
3)試験結果
この試験の結果は表1に示すとおりである。表1から明らかなとおり、WPIを添加した試料1は、WPCを添加した試料2及びカゼインを添加した試料3と比較して顕著に曳糸性が増加することが認められた。WPIを添加した試料1においては、0.1〜20部添加した場合、曳糸性が20cm以上であり、特に1〜10部添加した場合、顕著に曳糸性が増加することが判明した。
【0026】
従って、本発明においては、WPIを0.1〜20部、望ましくは1〜10部、の割合でナチュラル・チーズに添加する。
【0027】
尚、ナチュラル・チーズ、WPI及び製造法を変更して試験を行ったが、ほぼ同様の結果が得られた。
【0028】
【表1】

Figure 0003732666
【0029】
試験例2
この試験は、2回以上の加熱による曳糸性を調べるために行った。
【0030】
1)試料の調製
試験例1においてWPIを添加した試料1(1回加熱した試料)を、約230℃で1分加熱し(2回加熱した試料)、5℃に冷却した試料を調製した。更に、前記2回加熱し、5℃に冷却した各試料を再度約230℃で1分加熱し(3回加熱した試料)、5℃に冷却し、試料を調製した。
【0031】
2)試験方法
各試料について試験例1と同一の方法により曳糸性を試験した。
【0032】
3)試験結果
この試験の結果は表2に示すとおりである。表2から明らかなとおり、WPI添加量0.1〜20部での1回加熱した試料と2回加熱した試料とでは、曳糸性に差はなく、25cm以上であり、3回加熱した試料においても曳糸性は、20cm以上であることが判明した。
【0033】
従って、本発明においては、WPIを0.1〜20部の割合、望ましくは1〜10部の割合でナチュラル・チーズに添加したものは、2回以上の加熱による曳糸性が良好であることが判明した。
【0034】
尚、ナチュラル・チーズ、WPI及び製造法を変更して試験を行ったが、ほぼ同様の結果が得られた。
【0035】
【表2】
Figure 0003732666
【0036】
試験例3
この試験は、急冷時の引っ張り強度が曳糸性に及ぼす影響を調べるために行った。
【0037】
1)試料の調製
表3に示す引っ張り強度で急冷したこと、及びWPIの添加割合を5部としたことを除き、実施例1と同一の方法により試料を調製した。
【0038】
2)試験方法
各試料について試験例1と同一の方法により曳糸性を試験した。
【0039】
3)試験結果
この試験の結果は表3に示すとおりである。表3から明らかなとおり、引っ張り強度が、0.01〜10kgfの範囲内であり、1回加熱した試料と2回加熱した試料とを比較した場合、曳糸性に差はなく、いずれも50cm以上あることが認められた。尚、3回加熱した試料においては、前記各試料よりも若干曳糸性が低下したが、20cm以上あることが判明した。
【0040】
従って、本発明においては、引っ張り強度を0.01〜10kgf、望ましくは0.1〜1kgf、の範囲内において急冷する。
【0041】
尚、ナチュラル・チーズ、WPI及び製造法を変更して試験を行ったが、ほぼ同様の結果が得られた。
【0042】
【表3】
Figure 0003732666
【0043】
試験例4
この試験は、急冷時の冷却時間が曳糸性に及ぼす影響を調べるために行った。
【0044】
1)試料の調製
表3に示す冷却時間により急冷したこと、及びWPIの添加割合を5部としたことを除き、実施例1と同一の方法により試料を調製した。
【0045】
2)試験方法
各試料について試験例1と同一の方法により曳糸性を試験した。
【0046】
3)試験結果
この試験の結果は表4に示すとおりである。表4から明らかなとおり、急冷時における冷却時間が、0.5〜10分間の範囲内において、品温を25℃以下に急冷した場合、1回加熱した試料と2回加熱した試料とでは、曳糸性に差はなく、いずれも50cm以上あることが認められた。尚、3回加熱した試料においては、前記各試料よりも若干曳糸性が低下したが、20cm以上あることが判明した。
【0047】
従って、本発明においては、冷却時間が、0.5〜10分間、望ましくは、0.5〜5分間、の範囲内において急冷する。
【0048】
尚、ナチュラル・チーズ、WPI及び製造法を変更して試験を行ったが、ほぼ同様の結果が得られた。
【0049】
【表4】
Figure 0003732666
【0050】
次に、実施例を示して本発明を、更に詳細に説明するが、本発明は以下の実施例に限定されるものではない。
【0051】
【実施例】
実施例1
モザレラチ−ズ(森永乳業社製)18kg及びチェダ−チ−ズ(森永乳業社製)12kgの混合物に、WPI(ドイツのミライ社製。ホエー蛋白含量95%。)3kg(10部)及び溶融塩(ヘキスト社製)0.03kgを添加し、ケトル型乳化機(クスナ−社製)を用いて80℃に加熱し、90rpmで撹拌しながら同温度で5分間保持して均一に溶融し、ポンプ(ト−ワテクノ社製)を用いて直径50mmの円筒状ノズルから押出し、成型し、引き伸し機(DIMA社製)により引っ張り強度0.5kgfで引き伸し、冷却槽(DIMA社製)に5分間浸漬して水冷し、品温を22℃に急冷し、曳糸性及び加熱耐性に優れたチ−ズ様食品約35kgを得た。
【0052】
得られた製品を試験例1と同一の方法により試験した結果、1回加熱時の曳糸性が90cmであり、2回加熱時の曳糸性が88cmであり、いずれも曳糸性及び加熱耐性に優れた製品であった。
【0053】
実施例2
モザレラチ−ズ(ニュ−ジ−ランド・デイリ−ボ−ド製)20kg及びゴ−ダ−チ−ズ(オランダ・デ−エム・ブイ社製)10kgの混合物に、WPI(アメリカのダビスコ社製。ホエー蛋白含量95%。)0.03kg(0.1部)、溶融塩(ヘキスト社製)0.06kg及び安定剤としてキサンタンガム(三栄源エフ・エフ・アイ社製)0.03kgを添加し、ケトル型乳化機(クスナ−社製)を用いて85℃に加熱し、80rpmで撹拌しながら同温度にて3分間保持して溶融し、ポンプ(ト−ワテクノ社製)を用いて直径50mmの円筒状ノズルから押出し、成型し、引き伸し機(DIMA社製)により引っ張り強度0.01kgfで引き伸し、冷却槽(本発明者らが先に出願した特開平7−177848号公報の図1に開示された装置。)に0.5分間浸漬して水冷し、品温を5℃に急冷し、曳糸性及び加熱耐性に優れたチ−ズ様食品約33kgを得た。
【0054】
得られた製品を試験例1と同一の方法により試験した結果、1回加熱時の曳糸性が40cmであり、2回加熱時の曳糸性が35cmであり、いずれも曳糸性及び加熱耐性に優れた製品であった。
【0055】
実施例3
WPIの添加割合を20部に変更したこと、引っ張り強度を10.0kgfに変更したこと、及び10分間で品温を25℃に急冷したことを除き、実施例1と同一の方法により、曳糸性及び加熱耐性に優れたチ−ズ様食品約33kgを得た。
【0056】
得られた製品を試験例1と同一の方法により試験した結果、1回及び2回の加熱時の曳糸性が、いずれも30cmであり、いずれも曳糸性及び加熱耐性に優れた製品であった。
【0057】
実施例4
WPIの添加割合を15部に変更したこと、引っ張り強度を0.05kgfに変更したこと、及び10分間で品温を20℃に急冷したことを除き、実施例1と同一の方法により、曳糸性及び加熱耐性に優れたチ−ズ様食品約33kgを得た。
【0058】
得られた製品を試験例1と同一の方法により試験した結果、1回加熱時の曳糸性が40cmであり、2回加熱時の曳糸性が35cmであり、いずれも曳糸性及び加熱耐性に優れた製品であった。
【0059】
実施例5
WPIの添加割合を0.5部に変更したこと、引っ張り強度を8.0kgfに変更したこと、及び5分間で品温を15℃に急冷したことを除き、実施例1と同一の方法により、曳糸性及び加熱耐性に優れたチ−ズ様食品約33kgを得た。得られた製品を試験例1と同一の方法により試験した結果、1回加熱時の曳糸性が50cmであり、2回加熱時の曳糸性が48cmであり、いずれも曳糸性及び加熱耐性に優れた製品であった。
【0060】
【発明の効果】
以上、詳細に説明したとおり、本発明は、ナチュラル・チ−ズ100部(重量)に、ホエ−蛋白分離物を0.1〜20部(重量)の割合で添加して混合し、加熱し、殺菌し、乳化し、のち乳化物に引っ張り強度0.01kgf〜10kgfを加えながら急冷し、0.5〜10分間以内に25℃以下の品温に低下させることを特徴とする曳糸性及び加熱耐性に優れたチ−ズ様食品の製造法、及びこの製造法により得られる曳糸性及び加熱耐性に優れたチ−ズ様食品であり、本発明により奏せられる効果は次のとおりである。
1)2回以上加熱した場合においても、曳糸性が保持されている。
2)2回以上加熱した場合においても、ナチュラル・チーズと同様の食感を有している。
3)2回以上加熱した場合においても、ナチュラル・チ−ズと同様の物性が維持されている。
4)2回以上加熱した場合においても、チーズにとって望ましくないオイルオフの量が少ない。
5)乳化した混合物を急冷するので、細菌に汚染されず、品質が安定している。[0001]
BACKGROUND OF THE INVENTION
The present invention contains whey-protein isolate [90% (by weight) or more of whey protein. Whey protein isolate. Hereinafter, abbreviated as WPI. ] And a natural cheese mixture as the main raw material, it has excellent spinnability when cooked by heating, sterilization and emulsification, and has low heat resistance with little deterioration of spinnability even if heated twice or more. The present invention relates to a seed-like food and a method for producing the same.
[0002]
[Prior art]
Many inventions have been disclosed as a method for producing a cheese having a stringiness or stringiness by heating, sterilizing, emulsifying raw material cheese (see, for example, JP-A-62-285755, (Kaihei 1-218548, JP-A-2-92239, JP-A-4-200388, JP-A-4-218334, JP-A-5-91834, JP-A-5-123104, etc.).
[0003]
In addition, many inventions have been disclosed regarding cheese-like foods using WPI and methods for producing the same (for example, JP-A-63-230037, JP-A-63-109736, JP-A-1- 148148, JP-A-2-23830, JP-A-2-308756, etc.).
[0004]
According to each of the above-mentioned conventional production methods, a cheese-like food having a stringiness and / or a stringiness can be produced, but the product obtained by the conventional method increases oil-off and increases hardness by heating twice. The physical properties changed greatly, resulting in a gummy texture and the value of the product significantly decreased.
[0005]
That is, in order to produce process seed-like seeds, an emulsifier is used for preventing water separation, suppressing excessive oil-off, and preventing stringiness during production. The resulting process seed-like seeds were poor in spinnability, did not give a natural cheese-like texture, and were extremely weak in resistance to reheating. Therefore, the conventional manufacturing method and product are inconvenient when used for cooking or the like and heated twice or more.
[0006]
[Problems to be solved by the invention]
The inventors of the present invention can not be produced by the conventional production method and blending, and the spinnability is good even when heated twice or more, and the texture is compared with the product heated once. As a result of extensive research on the raw materials of the process seeds and the production process of the process seed-like seeds and the production method thereof, which have no problem, the present invention has been completed.
[0007]
The present invention is a bacteriologically safe process seed-like seed, yet has a natural texture and has a stringiness and heat resistance even when heated twice or more. An excellent cheese-like food and a method for producing the same are provided.
[0008]
[Means for Solving the Problems]
The first invention of the present invention for solving the above-mentioned problems is to add 100 parts (weight) of natural seeds and add 0.1 to 20 parts (weight) of whey-protein isolate and mix, Heated, sterilized, emulsified, and then rapidly cooled while adding a tensile strength of 0.01 kgf to 10 kgf to the emulsion, and reduced to a product temperature of 25 ° C. or less within 0.5 to 10 minutes It is a method for producing a cheese-like food having excellent properties and heat resistance.
[0009]
The second invention of the present invention that solves the above-mentioned problems is a cheese-like food excellent in the stringiness and heat resistance obtained by the production method of the present invention.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in detail, but in order to facilitate understanding of the present invention, the first invention of the present invention will be described first .
[0011]
As the natural seed used as a raw material in the method of the present invention, either a natural seed that is not sufficiently matured or a natural seed that is matured can be used. Examples of natural cheeses that are not sufficiently matured include mozzarella cheese, frozen cheddar cheese, and scamorza cheese. Further, examples of the natural cheese that has been ripened include sharp cheddar cheese, gouda cheese, parmesan cheese, Guliers cheese, and the like. Furthermore, it is also possible to use these natural seeds in an appropriate mixture.
[0012]
The WPI used as a raw material in the method of the present invention is a product having a whey protein content of 90% (weight, hereinafter the same unless otherwise specified) and containing a high proportion of whey protein. A commercially available product can also be used. It can also be produced from whey by a known method (for example, monthly food chemical, Vol. 7, No. 2, page 68, 1991). When the whey-protein content is less than 90%, as will be apparent from Test Example 1 described later, the desired spinnability cannot be obtained.
[0013]
0.1 to 20 parts of WPI is added to 100 parts of the above natural seeds, mixed uniformly, heated, sterilized and emulsified. If necessary, it is also possible to add auxiliary materials used in the production of ordinary process seeds such as salt, stabilizers, and coloring agents.
[0014]
Next, the emulsified mixture is rapidly cooled. In this rapid cooling step, the product is cooled rapidly while applying a tensile strength of 0.01 to 10 kgf, and the product temperature is lowered to 25 ° C. or less within 0.5 to 10 minutes. This is a major feature of the inventive method.
[0015]
As is clear from the test examples described later, when the tensile strength at the time of rapid cooling is outside the range of 0.01 to 10 kgf, the spinnability is extremely lowered, and the tensile strength is within the range of 0.1 to 10 kgf. In the range of 1-1 kgf, the spinnability is very good.
[0016]
As is clear from the test examples described later, when the cooling time at the time of rapid cooling is adjusted to a temperature of 25 ° C. or less within the range of 0.5 to 10 minutes, the spinnability is good. When the product temperature is adjusted to 25 ° C. or less within the range of 0.5 to 5 minutes, the spinnability is extremely good. On the other hand, if it is out of the above range, the spinnability is extremely lowered.
[0017]
In addition, although it is a well-known matter in the said technical field to cool the emulsified mixture to the temperature of 25 degrees C or less, giving a tensile strength and quenching in a short time is a novel process which is not before.
[0018]
Next, the second invention of the present invention will be described. The cheese-like food with excellent spinnability and heat resistance of the present invention produced by the above method retains spinnability even when heated twice or more, and natural cheese and It has the same texture and maintains the same physical properties as natural seeds, and exhibits extremely excellent performance when used for cooking. That is, there is no oil-off, and there is a stringiness so that it can sufficiently meet the purpose of use.
[0019]
Furthermore, the cheese-like food excellent in spinnability and heat resistance of the present invention has excellent performance in various processing (for example, shred).
[0020]
As described above, the present invention is a novel cheese-like food having excellent physical properties that does not exist in the related art and a method for producing the same.
[0021]
Next, the present invention will be described in detail with reference to test examples.
[0022]
Test example 1
This test was conducted to examine the effect of various additives on the spinnability of cheese.
[0023]
1) Sample preparation A sample (sample 1) produced by the same method as in Example 1 except that WPI was added at the addition ratio shown in Table 1, and whey protein concentrate [Germany] at the addition ratio shown in Table 1. Made by Mirai. Contains 70% whey protein. whey protein concentrate. Hereinafter, abbreviated as WPC. ) Was added in the same manner as in Example 1 (Sample 2) and casein (New Zealand Daily Board, containing 95% protein) at the addition ratio shown in Table 1. A sample (sample 3) produced by the same method as in Example 1 was prepared.
[0024]
2) Test method An L-shaped cone was placed in the center of the heat-resistant petri dish, and 20 g of each sample was placed on the entire bottom surface of the L-shaped cone, which was heated at about 230 ° C. for 1 minute, and then for 30 seconds. The length of time (cm) until each sample is cut by allowing the sample to stand at room temperature and pulling up the L-shaped cone vertically at a speed of 10 cm / sec with a strograph (STROGRAPH: manufactured by Toyo Seiki Co., Ltd., W type). Was measured and the spinnability was tested. In addition, all the indications of the spinnability in this invention are based on this test method.
[0025]
3) Test results The results of this test are shown in Table 1. As is clear from Table 1, it was recognized that Sample 1 to which WPI was added significantly increased spinnability compared to Sample 2 to which WPC was added and Sample 3 to which casein was added. In Sample 1 to which WPI was added, it was found that when 0.1 to 20 parts were added, the spinnability was 20 cm or more, and particularly when 1 to 10 parts were added, the spinnability was significantly increased.
[0026]
Accordingly, in the present invention, WPI is added to natural cheese at a ratio of 0.1 to 20 parts, preferably 1 to 10 parts.
[0027]
In addition, although natural cheese, WPI, and the manufacturing method were changed and the test was done, the substantially same result was obtained.
[0028]
[Table 1]
Figure 0003732666
[0029]
Test example 2
This test was conducted in order to examine the spinnability by heating twice or more.
[0030]
1) Sample Preparation Sample 1 (sample heated once) to which WPI was added in Test Example 1 was heated at about 230 ° C for 1 minute (sample heated twice) and cooled to 5 ° C. Further, each sample heated twice and cooled to 5 ° C. was again heated at about 230 ° C. for 1 minute (sample heated three times) and cooled to 5 ° C. to prepare a sample.
[0031]
2) Test method The spinnability of each sample was tested by the same method as in Test Example 1.
[0032]
3) Test results The results of this test are shown in Table 2. As is apparent from Table 2, there is no difference in spinnability between the sample heated once and the sample heated twice with an added amount of WPI of 0.1 to 20 parts, which is 25 cm or more and the sample heated three times The spinnability was found to be 20 cm or more.
[0033]
Accordingly, in the present invention, WPI added to natural cheese in a proportion of 0.1 to 20 parts, preferably 1 to 10 parts, has good spinnability by heating twice or more. There was found.
[0034]
In addition, although natural cheese, WPI, and the manufacturing method were changed and the test was done, the substantially same result was obtained.
[0035]
[Table 2]
Figure 0003732666
[0036]
Test example 3
This test was conducted to examine the influence of the tensile strength during rapid cooling on the spinnability.
[0037]
1) Preparation of sample A sample was prepared by the same method as in Example 1 except that the sample was quenched with the tensile strength shown in Table 3 and the addition ratio of WPI was 5 parts.
[0038]
2) Test method The spinnability of each sample was tested by the same method as in Test Example 1.
[0039]
3) Test results The results of this test are shown in Table 3. As is apparent from Table 3, the tensile strength is in the range of 0.01 to 10 kgf, and there is no difference in the spinnability when the sample heated once and the sample heated twice are compared, both of which are 50 cm. It was recognized that there was more. In addition, in the sample heated three times, the spinnability was slightly lowered as compared with each sample, but it was found that the sample was 20 cm or more.
[0040]
Therefore, in the present invention, quenching is performed within a range of tensile strength of 0.01 to 10 kgf, preferably 0.1 to 1 kgf.
[0041]
In addition, although natural cheese, WPI, and the manufacturing method were changed and the test was done, the substantially same result was obtained.
[0042]
[Table 3]
Figure 0003732666
[0043]
Test example 4
This test was conducted to examine the effect of the cooling time during rapid cooling on the spinnability.
[0044]
1) Preparation of sample A sample was prepared by the same method as in Example 1 except that it was rapidly cooled by the cooling time shown in Table 3 and the addition ratio of WPI was 5 parts.
[0045]
2) Test method The spinnability of each sample was tested by the same method as in Test Example 1.
[0046]
3) Test results The results of this test are shown in Table 4. As is clear from Table 4, when the cooling time at the time of rapid cooling is within a range of 0.5 to 10 minutes, when the product temperature is rapidly cooled to 25 ° C. or less, with the sample heated once and the sample heated twice, There was no difference in the spinnability, and it was recognized that all were 50 cm or more. In addition, in the sample heated three times, the spinnability was slightly lowered as compared with each sample, but it was found that the sample was 20 cm or more.
[0047]
Therefore, in this invention, it cools rapidly within the range whose cooling time is 0.5 to 10 minutes, desirably 0.5 to 5 minutes.
[0048]
In addition, although natural cheese, WPI, and the manufacturing method were changed and the test was done, the substantially same result was obtained.
[0049]
[Table 4]
Figure 0003732666
[0050]
EXAMPLES Next, although an Example is shown and this invention is demonstrated further in detail, this invention is not limited to a following example.
[0051]
【Example】
Example 1
A mixture of 18 kg of Mozarellachizu (Morinaga Milk Industry) and 12 kg of Chedhachizu (Morinaga Milk Industry), 3 kg (10 parts) of WPI (Mirai, Germany, 95% whey protein content) and molten salt (0.03 kg from Hoechst) is added, heated to 80 ° C. using a kettle type emulsifier (manufactured by Kusner), and held at the same temperature for 5 minutes while stirring at 90 rpm to melt uniformly. (Towa Techno Co., Ltd.) was extruded from a cylindrical nozzle with a diameter of 50 mm, molded, stretched with a stretcher (DIMA Co., Ltd.) with a tensile strength of 0.5 kgf, and placed in a cooling tank (DIMA Co., Ltd.). It was immersed in water for 5 minutes and cooled with water, and the product temperature was rapidly cooled to 22 ° C. to obtain about 35 kg of a cheese-like food excellent in stringiness and heat resistance.
[0052]
The obtained product was tested by the same method as in Test Example 1. As a result, the spinnability at the first heating was 90 cm, and the spinnability at the second heating was 88 cm. It was a product with excellent resistance.
[0053]
Example 2
A mixture of 20 kg of Mozarellachiz (New Zealand Daily Board) and 10 kg of Goderz (D-M Buoy, The Netherlands), WPI (Davisco, USA). Whey protein content 95%.) 0.03 kg (0.1 part), 0.06 kg of molten salt (Hoechst) and xanthan gum (manufactured by Saneigen FFI Co., Ltd.) 0.03 kg as a stabilizer, It is heated to 85 ° C. using a kettle type emulsifier (manufactured by Kusner), melted by holding at the same temperature for 3 minutes while stirring at 80 rpm, and having a diameter of 50 mm using a pump (manufactured by Towa Techno Co., Ltd.). Extruded from a cylindrical nozzle, molded, stretched by a stretcher (manufactured by DIMA) with a tensile strength of 0.01 kgf, and a cooling tank (Japanese Patent Laid-Open No. 7-177848 filed earlier by the present inventors) Disclosed in 1 . Location) immersion and cooled with water for 0.5 minutes, then quenched product temperature to 5 ° C., excellent Ji in spinnability and heat resistance - was obtained's like food about 33 kg.
[0054]
The obtained product was tested by the same method as in Test Example 1. As a result, the spinnability at the first heating was 40 cm, and the spinnability at the second heating was 35 cm. It was a product with excellent resistance.
[0055]
Example 3
By using the same method as in Example 1, except that the addition ratio of WPI was changed to 20 parts, the tensile strength was changed to 10.0 kgf, and the product temperature was rapidly cooled to 25 ° C. in 10 minutes. About 33 kg of a cheese-like food having excellent properties and heat resistance was obtained.
[0056]
As a result of testing the obtained product by the same method as in Test Example 1, the spinnability at the time of heating once and twice was both 30 cm, and both were products excellent in spinnability and heat resistance. there were.
[0057]
Example 4
By using the same method as in Example 1, except that the WPI addition ratio was changed to 15 parts, the tensile strength was changed to 0.05 kgf, and the product temperature was rapidly cooled to 20 ° C. in 10 minutes. About 33 kg of a cheese-like food having excellent properties and heat resistance was obtained.
[0058]
The obtained product was tested by the same method as in Test Example 1. As a result, the spinnability at the first heating was 40 cm, and the spinnability at the second heating was 35 cm. It was a product with excellent resistance.
[0059]
Example 5
Except for changing the addition ratio of WPI to 0.5 parts, changing the tensile strength to 8.0 kgf, and rapidly cooling the product temperature to 15 ° C. in 5 minutes, About 33 kg of a cheese-like food having excellent spinnability and heat resistance was obtained. The obtained product was tested by the same method as in Test Example 1. As a result, the spinnability at the first heating was 50 cm, and the spinnability at the second heating was 48 cm. It was a product with excellent resistance.
[0060]
【The invention's effect】
As described above in detail, the present invention adds and mixes 0.1 to 20 parts (weight) of whey-protein isolate in 100 parts (weight) of natural seeds, and heats. Sterilized, emulsified, and then rapidly cooled while adding a tensile strength of 0.01 kgf to 10 kgf to the emulsion, and reduced to an article temperature of 25 ° C. or less within 0.5 to 10 minutes, and A method for producing a cheese-like food with excellent heat resistance, and a cheese-like food with excellent spinnability and heat resistance obtained by this production method. The effects exhibited by the present invention are as follows. is there.
1) The spinnability is maintained even when heated twice or more.
2) Even when heated twice or more, it has the same texture as natural cheese.
3) Even when heated twice or more, the same physical properties as natural seeds are maintained.
4) Even when heated twice or more, the amount of oil-off undesirable for cheese is small.
5) Since the emulsified mixture is rapidly cooled, it is not contaminated by bacteria and the quality is stable.

Claims (2)

ナチュラル・チ−ズ100部(重量)に、ホエ−蛋白分離物を0.1〜20部(重量)の割合で添加して混合し、加熱し、殺菌し、乳化し、のち乳化物に引っ張り強度0.01kgf〜10kgfを加えながら急冷し、0.5〜10分間以内に25℃以下の品温に低下させることを特徴とする曳糸性及び加熱耐性に優れたチ−ズ様食品の製造法。To 100 parts (weight) of natural seed, add whey-protein isolate at a ratio of 0.1 to 20 parts (weight), mix, heat, sterilize, emulsify, and then pull on the emulsion. Production of a cheese- like food excellent in spinnability and heat resistance, characterized by being rapidly cooled while adding strength 0.01 kgf to 10 kgf and being reduced to a product temperature of 25 ° C. or less within 0.5 to 10 minutes. Law. 請求項1に記載の製造法により得られる曳糸性及び加熱耐性に優れたチ−ズ様食品。 A cheese-like food excellent in stringiness and heat resistance obtained by the production method according to claim 1.
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