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JP3769223B2 - Post-fermented yogurt - Google Patents
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JP3769223B2 - Post-fermented yogurt - Google Patents

Post-fermented yogurt Download PDF

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Publication number
JP3769223B2
JP3769223B2 JP2001358346A JP2001358346A JP3769223B2 JP 3769223 B2 JP3769223 B2 JP 3769223B2 JP 2001358346 A JP2001358346 A JP 2001358346A JP 2001358346 A JP2001358346 A JP 2001358346A JP 3769223 B2 JP3769223 B2 JP 3769223B2
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Japan
Prior art keywords
yogurt
high viscosity
lactic acid
post
acid bacteria
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JP2001358346A
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JP2003158997A (en
Inventor
良治 景山
英輔 望月
裕司 平山
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Nippon Milk Community Co Ltd
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Nippon Milk Community Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、高温で高粘性産生能を有する乳酸菌をスターターとして用いて得ることのできる高粘度で流動性の良好な後発酵型ヨーグルト及びその製造法に関する。
【0002】
【従来の技術】
ヨーグルトの製造法には、その発酵の時期からみて、ヨーグルトミックスに乳酸菌スターターを添加し、これを発酵させ、得られる発酵産物(カード)を破砕して容器に充填する、いわゆる前発酵型といわれる製造法と、ヨーグルトミックスに乳酸菌スターターを添加し、これを容器に充填し、発酵を行って容器入りヨーグルトを製造する、いわゆる後発酵型といわれる製造法の2種の方法がある。
【0003】
近年、ヨーグルトは一人ずつ食することのできる個食用容器にヨーグルトミックスを充填し、発酵させ、発酵後直ちに出荷できるという利点から後発酵型ヨーグルトが主流となっている。また、他のヨーグルトに比較して粘度が高く、適度な流動性と滑らかな食感を呈するものが好まれている傾向もある。このような高粘度で適度な流動性と滑らかな食感を呈するヨーグルトを製造するには、ヨーグルトミックスに安定剤を添加する方法と、中温菌の乳酸菌スターターを用いる方法とがある。しかし、前者の安定剤を添加する方法は、安定剤特有のきめの粗い、糊感やもたつき感のある製品となり、さらに安定剤を添加しないという最近の傾向に反し、また、後者の中温菌の乳酸菌スターターを用いる方法は、発酵温度を低くし発酵時間を長くしなければならないので、生産効率が低下するという問題があった。
【0004】
【発明が解決しようとする課題】
本発明は、従来技術のこのような問題を解決するためになされたものである。すなわち、本発明は、安定剤を添加することなく、風味が良く、短い発酵時間で生産効率良く、高粘度で流動性の良好な後発酵型ヨーグルトを得ることを目的としてなされたものである。
【0005】
【課題を解決するための手段】
本発明は、このような課題を解決するためになされたものである。本発明者らは、後発酵型ヨーグルトの製造においてスターターとして使用する乳酸菌について種々検討したところ、ヨーグルトミックスに、高温菌で高粘性産生能を有するラクトバチルス・ブルガリクス(Lactobacillus bulgaricus) とストレプトコッカス・サーモフィルス(Streptococcus thermophilus) とからなる混合乳酸菌をスターターとして添加して容器に充填後発酵させると、高粘度で流動性の良好な後発酵型ヨーグルトを短時間のうちに製造できることを見出してなされたものである。しかも従来の後発酵型ヨーグルトのように安定剤(ゼラチン、ペクチン)、寒天等を添加することなく、製品はきめが細かく、風味がよく、従来の後発酵型ヨーグルトに無い物性と滑らかな組織とを有する後発酵型ヨーグルトを得ることができる。
【0006】
すなわち、本発明は、高温菌で高粘性産生能を有するラクトバチルス・ブルガリクス及びストレプトコッカス・サーモフィルスからなる混合乳酸菌スターターを使用することによって得ることのできる高粘度で流動性の良好な後発酵型ヨーグルトに関する。
また、本発明は、ヨーグルトミックスに、高温菌で高粘性産生能を有するラクトバチルス・ブルガリクスおよびストレプトコッカス・サーモフィルスからなる混合乳酸菌スターターを添加し、容器に充填し、発酵させて高粘度で流動性の良好な後発酵型ヨーグルトを製造する方法に関する。
本発明において、高粘度で流動性の良好な後発酵型ヨーグルトとは図1に示すように、ヨーグルトミックスを容器に充填し発酵させた直後のカードの剪断応力が高く、カードが破壊されると急激に剪断応力が低下する性質を有するもののことを言う。
【0007】
本発明において高温菌とは45℃で生育し、15℃で生育しない菌のことを言い(乳酸菌実験マニュアル p128)、本発明では高温菌であって、しかも、高粘性産生能を有する乳酸菌を用いるが、ラクトバチルス・ブルガリクスとしては、ラクトバチルス・ブルガリクス SBT 0098(FERM P-9440)、またはラクトバチルス・ブルガリクス SBT 0167(FERM P-9441)を、また、ストレプトコッカス・サーモフィルスとしては、ストレプトコッカス・サーモフィルス SBT 0113(FERM P-9443)、またはストレプトコッカス・サーモフィルス SBT 0104(FERM P-9442)が好ましく、特に、ラクトバチルス・ブルガリクス SBT 0098(FERM P-9440)とストレプトコッカス・サーモフィルス SBT 0113(FERM P-9443)を用いることが好ましい。
【0008】
【発明の実施の形態】
本発明における原料のヨーグルトミックスは、乳を原料としたものを用いる。乳としては、牛乳、脱脂乳、粉乳、練乳、生クリーム、乳蛋白等を例示することができる。この乳に、必要に応じて油脂、糖質その他従来のヨーグルトミックスの配合剤として知られているものを配合してもよい。ただし、安定剤のような発酵後の製品の品質や風味に悪影響を及ぼすものと、発酵に支障を及ぼすものは避けるべきである。
【0009】
これらの原料、例えば乳原料、バター、ショ糖を所定量計量し、50〜60℃に加温して溶解する。これを60〜70℃の温度で 100〜270kg/cm2 、好ましくは 140kg/ cm2 の均質圧で均質処理し、90〜95℃程度の温度に 5〜10分間保持して殺菌処理する。ついで、41℃程度に冷却する。この均質、殺菌及び冷却した原料液をヨーグルトミックスという。次にこのヨーグルトミックスに乳酸菌スターターを添加する。乳酸菌スターターの添加はヨーグルトミックスを容器に充填する直前に行うとよい。
【0010】
乳酸菌スターターとしては、高温菌で高粘性産生能を有するラクトバチルス・ブルガリクスとストレプトコッカス・サーモフィルスとからなる混合乳酸菌スターターが用いられる。混合乳酸菌スターターとして特に好適なものは、ラクトバチルス・ブルガリクス SBT 0098(FERM P-9440)とストレプトコッカス・サーモフィルス SBT 0113(FERM P-9443)とからなる混合乳酸菌スターターである。いずれも高温菌であって35〜45℃で好ましい生育を示し、また高粘性産生菌である。本発明ではラクトバチルス・ブルガリクス1重量部に対し、ストレプトコッカス・サーモフィルス2〜6重量部を混合し、混合乳酸菌スターターとして使用する。
【0011】
上記のようにしてヨーグルトミックスを調製し、高温菌で高粘性産生能を有する混合乳酸菌スターターを添加する。添加量は1〜5重量%が好ましい。次いで、これを容器、例えば個食用の合成樹脂製や紙製の容器等に充填後、開口部を蓋材でシールし、醗酵室に移送し発酵させる。発酵は40〜45℃で2〜3時間行い、酸度が0.6〜1.0重量%になったときに発酵を終了する。発酵終了後、5〜10℃に冷却して、きめが細かく、風味がよく、高粘度で流動性の良好な後発酵型ヨーグルトを高温短時間で得ることができる。本発明の後発酵型ヨーグルトは、生菌数は1.0×107〜1.0×109を含み、pH3.8〜4.8である性質を示すものが好ましい。
【0012】
次に、本発明の実施例を示すが本発明は、この実施例に限定して解釈されるべきものではない。
【実施例1】
(1) ヨーグルトミックスの調製
脱脂粉乳 9重量%、無塩バター 4重量%、砂糖 10重量%及び水 77重量%の割合で原料を混合し溶解した後、60℃に加温してホモジナイザーで150kg/cm2の均質圧で均質化した。そして、この溶液を90℃で10分間保持して加熱殺菌した後、41℃まで冷却してヨーグルトミックスを得た。
【0013】
(2) 乳酸菌スターターの調製
本発明品の乳酸菌スターターとして、ラクトバチルス・ブルガリクス SBT 0098(FERM P-9440)及びストレプトコッカス・サーモフィルス SBT 0113(FERM P-9443)からなる混合乳酸菌スターターを調製した。
また、対照品の乳酸菌スターターとして、ラクトバチルス・ブルガリクス SBT2118B(FERM P-11918)、ストレプトコッカス・サーモフィルス SBT 1020(FERM P-13956)からなる混合乳酸菌スターターを調製した。
【0014】
(3) 後発酵型ヨーグルトの製造
本発明品の混合乳酸菌スターター 3重量%を添加したヨーグルトミックス 100mlをカップ型紙容器(110ml容) に充填し、フィルム状蓋材でシールした。そして、温度41℃で乳酸酸度が 0.7%に到達するまで2.5時間発酵させ、冷却して、本発明の後発酵型ヨーグルトを製造した。このときの乳酸菌の菌数は1.0×109で、pHは4.5であった。
また、対照品の混合乳酸菌スターター 3重量%及び寒天 0.1重量%を添加したヨーグルトミックス100 mlをカップ型紙容器(110ml容) に充填し、フィルム状蓋材でシールした。そして、温度41℃で、乳酸酸度が0.7 %に到達するまで2.5時間発酵させ、冷却して対照品1の後発酵型ヨーグルトを製造した。このときの乳酸菌の菌数は1.0×109で、pHは4.5であった。
また、ヨーグルトミックスに寒天を添加せずに対照品1と同様の方法で、対照品2の後発酵型ヨーグルトを製造した。このときの乳酸菌の菌数は1.0×10でpHは4.5であった。
【0015】
本発明品も対照品も発酵温度を41℃にして条件を揃えたところ、乳酸酸度が0.7%に到達するのにいずれも2.5時間の発酵時間を要し、出来上がりの乳酸菌数もpHも同じであった。
【0016】
【試験例1】
実施例1で製造した本発明品および対照品について、その物性を評価するために、Hakke Rotovivisko RV2 粘度計で剪断応力を測定した。その結果を図1及び表1に示す。なお、剪断応力は、測定サンプルと測定器を10℃に保温し、サンプル6gを10mlピペットで採取し、次の測定条件で測定した。
1)0〜1.25分間で、剪断速度を0〜500(1/S)まで一定の加速度で上げる。
2)1.25〜2.5 分間で、剪断速度を 500〜0(1/S) まで一定の減速度で下げる。この工程の中で最大の剪断応力を測定値として表1に示した。また、図1には剪断速度の増加による剪断応力の変化を示した。
さらに、実施例1で製造した本発明品および対照品について、官能評価を行った。官能評価は、熟練パネラー10名に各試料10g(品温10℃)を食してもらい、組織の滑らかさ及び風味について、5点:大変好ましい、4点:好ましい、3点:どちらとも言えない、2点:好ましくない、1点:全く好ましくない、の5段階で評価し、その平均点(小数点第2位を四捨五入)で表わした。
【0017】
【表1】

Figure 0003769223
【0018】
本発明品は剪断応力の値も好ましく、粘度があるにもかかわらず適度な流動性を有し、組織も滑らかであり、風味も好ましかった。一方で対照品1及び2は、風味は好ましかったものの、剪断応力の値が好ましい値よりも低く、組織も脆く、適度な流動性や滑らかさを呈するものではなかった。
また、図1からもわかるように、本発明品はカードを破壊したときの剪断応力が高く、その後急激に剪断応力が低下した。一方で、対照品1及び2は、カードを破壊したときと、カード破壊後の剪断応力に変化はほとんどなかった。
この様に、本発明品と対照品1および2は出来上がりの乳酸酸度、菌数、及びそれらの値に達するのに要した発酵時間は同じであったが、組織の状態や物性値は大きく異なるものであった。
【0019】
【発明の効果】
本発明によると、きめが細かく、高粘度で流動性が良く、しかも、従来の後発酵型ヨーグルトと相違する物性を有する個食タイプの後発酵型ヨーグルトを提供することができる。また、本発明では、このような個食タイプの後発酵型ヨーグルトの製造時間を短縮することができる。
【図面の簡単な説明】
【図1】試験例1の本発明の混合乳酸菌スターターを用いた場合と、対照の混合乳酸菌スターターを用いた場合の剪断速度の増加による剪断応力の変化を示す。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a post-fermented yogurt having a high viscosity and good fluidity, which can be obtained by using a lactic acid bacterium having a high viscosity producing ability at a high temperature as a starter, and a method for producing the same.
[0002]
[Prior art]
The yogurt production method is said to be a so-called pre-fermentation type, in which a lactic acid bacteria starter is added to a yogurt mix, fermented, and the resulting fermented product (curd) is crushed and filled into a container. There are two methods: a production method and a so-called post-fermentation type production method in which a lactic acid bacteria starter is added to a yogurt mix, this is filled in a container, and fermented to produce a yogurt in a container.
[0003]
In recent years, post-fermented yogurt has become the mainstream because of the advantage that yogurt mix can be filled in individual food containers that can be eaten one by one, fermented, and shipped immediately after fermentation. In addition, there is a tendency that those having higher viscosity than other yogurts and exhibiting moderate fluidity and smooth texture are preferred. In order to produce such high-viscosity yogurt that exhibits moderate fluidity and smooth texture, there are a method of adding a stabilizer to the yogurt mix and a method of using a mesophilic lactic acid bacteria starter. However, the former method of adding a stabilizer is a product with a rough texture, a feeling of stickiness and a feeling of stickiness peculiar to the stabilizer, and contrary to the recent trend of not adding a stabilizer, The method using a lactic acid bacteria starter has a problem in that the production efficiency is lowered because the fermentation temperature must be lowered and the fermentation time must be lengthened.
[0004]
[Problems to be solved by the invention]
The present invention has been made to solve such problems of the prior art. That is, the present invention has been made for the purpose of obtaining a post-fermentation type yogurt having a good flavor, a short fermentation time, a high production efficiency, a high viscosity and a good fluidity without adding a stabilizer.
[0005]
[Means for Solving the Problems]
The present invention has been made to solve such problems. The present inventors have made various investigations on lactic acid bacteria used as a starter in the manufacture of the rear fermented yoghurt, the yoghurt mix, Lactobacillus bulgaricus (Lactobacillus bulgaricus) and Streptococcus thermophilus having a high viscosity production ability in the thermophilic bacterium It was made by discovering that when mixed lactic acid bacteria consisting of phyllos (Streptococcus thermophilus ) was added as a starter and fermented after filling into a container, high-viscosity and good fluidity post-fermented yogurt could be produced in a short time It is. Moreover, the product is fine and savory without adding stabilizers (gelatin, pectin), agar, etc. like conventional post-fermented yogurt, and has physical properties and smooth structure that are not found in conventional post-fermented yogurt. A post-fermented yogurt having the following can be obtained.
[0006]
That is, the present invention is a post-fermentation type with high viscosity and good fluidity that can be obtained by using a mixed lactic acid bacteria starter composed of Lactobacillus bulgaricus and Streptococcus thermophilus having high viscosity and ability to produce high viscosity. Regarding yogurt.
In addition, the present invention adds a mixed lactic acid bacteria starter consisting of Lactobacillus bulgaricus and Streptococcus thermophilus having high viscosity and high viscosity production ability to yoghurt mix, filled into a container, fermented and flowed with high viscosity The present invention relates to a method for producing post-fermented yogurt having good properties.
In the present invention, the post-fermentation type yogurt having high viscosity and good fluidity, as shown in FIG. 1, has a high shear stress of the curd immediately after the yogurt mix is filled in the container and fermented, and the curd is destroyed. It has a property that the shear stress rapidly decreases.
[0007]
In the present invention, a thermophilic bacterium refers to a bacterium that grows at 45 ° C. and does not grow at 15 ° C. (lactic acid bacteria experiment manual p128). In the present invention, a lactic acid bacterium that is a thermophilic bacterium and has a high viscosity producing ability is used. However, as Lactobacillus bulgaricus, Lactobacillus bulgaricus SBT 0098 (FERM P-9440), or Lactobacillus bulgaricus SBT 0167 (FERM P-9441), and Streptococcus thermophilus as Streptococcus Thermophilus SBT 0113 (FERM P-9443) or Streptococcus thermophilus SBT 0104 (FERM P-9442) is preferred, especially Lactobacillus bulgaricus SBT 0098 (FERM P-9440) and Streptococcus thermophilus SBT 0113 (FERM P-9443) is preferably used.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The raw yogurt mix in the present invention uses milk as a raw material. Examples of milk include milk, skim milk, powdered milk, condensed milk, fresh cream, milk protein, and the like. You may mix | blend what is known as a compounding agent of fats and oils, carbohydrates, and other conventional yogurt mixes with this milk as needed. However, those that adversely affect the quality and flavor of the product after fermentation, such as stabilizers, and those that interfere with fermentation should be avoided.
[0009]
A predetermined amount of these raw materials such as milk raw material, butter and sucrose are weighed and dissolved by heating to 50 to 60 ° C. This is homogenized at a temperature of 60 to 70 ° C. at a homogeneous pressure of 100 to 270 kg / cm 2, preferably 140 kg / cm 2, and sterilized by holding at a temperature of about 90 to 95 ° C. for 5 to 10 minutes. Then cool to about 41 ° C. This homogeneous, sterilized and cooled raw material liquid is called yoghurt mix. Next, a lactic acid bacteria starter is added to this yogurt mix. The addition of the lactic acid bacteria starter is preferably performed immediately before the yogurt mix is filled in the container.
[0010]
As the lactic acid bacteria starter, a mixed lactic acid bacteria starter composed of Lactobacillus bulgaricus and Streptococcus thermophilus having high viscosity and high viscosity production ability is used. A particularly suitable mixed lactic acid bacteria starter is a mixed lactic acid bacteria starter composed of Lactobacillus bulgaricus SBT 0098 (FERM P-9440) and Streptococcus thermophilus SBT 0113 (FERM P-9443). All are thermophilic bacteria, exhibiting favorable growth at 35 to 45 ° C., and are highly viscous producing bacteria. In the present invention, 2 to 6 parts by weight of Streptococcus thermophilus is mixed with 1 part by weight of Lactobacillus bulgaricus and used as a mixed lactic acid bacteria starter.
[0011]
A yogurt mix is prepared as described above, and a mixed lactic acid bacteria starter having high viscosity producing ability with high-temperature bacteria is added. The addition amount is preferably 1 to 5% by weight. Then, after filling this into a container, for example, a single-edible synthetic resin or paper container, the opening is sealed with a lid, and transferred to a fermentation room for fermentation. Fermentation is carried out at 40 to 45 ° C. for 2 to 3 hours, and the fermentation is terminated when the acidity reaches 0.6 to 1.0% by weight. After completion of fermentation, the mixture is cooled to 5 to 10 ° C., and a post-fermentation yogurt with fine texture, good flavor, high viscosity and good fluidity can be obtained in a short time at a high temperature. The post-fermented yogurt of the present invention preferably has a viable count of 1.0 × 10 7 to 1.0 × 10 9 and exhibits a property of pH 3.8 to 4.8.
[0012]
Next, although the Example of this invention is shown, this invention should not be limited and limited to this Example.
[Example 1]
(1) Preparation of yogurt mix <br/> Non-fat dry milk 9 wt%, unsalted butter 4 wt%, sugar 10 wt% and water 77 wt% And homogenized at a homogeneous pressure of 150 kg / cm2. This solution was kept at 90 ° C. for 10 minutes and sterilized by heating, and then cooled to 41 ° C. to obtain a yogurt mix.
[0013]
(2) as a lactic acid bacteria starter for preparation <br/> present invention product of lactic acid bacteria starter, mixed lactic acid bacteria starter consisting of Lactobacillus bulgaricus SBT 0098 (FERM P-9440) and Streptococcus thermophilus SBT 0113 (FERM P-9443) Was prepared.
In addition, a mixed lactic acid bacteria starter composed of Lactobacillus bulgaricus SBT2118B (FERM P-11918) and Streptococcus thermophilus SBT 1020 (FERM P-13956) was prepared as a control lactic acid bacteria starter.
[0014]
(3) Production of post-fermentation type yogurt 100 ml of yogurt mix to which 3% by weight of the mixed lactic acid bacteria starter of the present invention was added was filled in a cup-shaped paper container (110 ml) and sealed with a film-like lid. And it fermented for 2.5 hours until the lactic acid acidity reached | attained 0.7% at the temperature of 41 degreeC, it cooled, and the post-fermentation type yoghurt of this invention was manufactured. At this time, the number of lactic acid bacteria was 1.0 × 10 9 and the pH was 4.5.
In addition, 100 ml of yogurt mix to which 3% by weight of a mixed lactic acid bacteria starter and 0.1% by weight of agar as a control product were added was filled in a cup-shaped paper container (110 ml) and sealed with a film-like lid. Then, the mixture was fermented for 2.5 hours at a temperature of 41 ° C. until the lactic acid acidity reached 0.7%, and cooled to produce a post-fermented yogurt of Control Product 1. At this time, the number of lactic acid bacteria was 1.0 × 10 9 and the pH was 4.5.
Further, post-fermented yogurt of Control Product 2 was produced in the same manner as Control Product 1 without adding agar to the yogurt mix. At this time, the number of lactic acid bacteria was 1.0 × 10 and the pH was 4.5.
[0015]
When the fermentation temperature was set to 41 ° C. for both the present product and the control product, the fermentation time of 2.5 hours was required for the lactic acid acidity to reach 0.7%, and the number of finished lactic acid bacteria and pH were the same. there were.
[0016]
[Test Example 1]
In order to evaluate the physical properties of the product of the present invention and the control product produced in Example 1, shear stress was measured with a Hakke Rotovivisko RV2 viscometer. The results are shown in FIG. The shear stress was measured under the following measurement conditions by keeping the measurement sample and measuring instrument at 10 ° C., collecting 6 g of the sample with a 10 ml pipette.
1) Increase the shear rate at a constant acceleration from 0 to 500 (1 / S) in 0 to 1.25 minutes.
2) Decrease the shear rate at a constant deceleration from 500 to 0 (1 / S) in 1.25 to 2.5 minutes. The maximum shear stress in this process is shown in Table 1 as a measured value. FIG. 1 shows the change in shear stress due to the increase in shear rate.
Furthermore, the sensory evaluation was performed on the product of the present invention and the control product produced in Example 1. For sensory evaluation, 10 expert panelists eat 10 g of each sample (product temperature 10 ° C.), and the smoothness and flavor of the structure are 5 points: very preferable, 4 points: preferable, 3 points: neither can be said. Two points were evaluated, which was not preferable, and one point was not preferable at all. The average score (rounded to the first decimal place) was expressed.
[0017]
[Table 1]
Figure 0003769223
[0018]
The product of the present invention also had a favorable shear stress value, had an appropriate fluidity despite having viscosity, a smooth structure, and a favorable flavor. On the other hand, in the control products 1 and 2, although the flavor was favorable, the value of the shear stress was lower than the preferred value, the structure was brittle, and appropriate fluidity and smoothness were not exhibited.
Further, as can be seen from FIG. 1, the product of the present invention had a high shear stress when the card was broken, and then the shear stress suddenly decreased. On the other hand, in the control products 1 and 2, there was almost no change in the shear stress when the card was broken and after the card was broken.
Thus, although the product of the present invention and the control products 1 and 2 had the same lactic acidity, the number of bacteria, and the fermentation time required to reach these values, the state of the tissue and the physical property values were greatly different. It was a thing.
[0019]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the post-fermentation type yoghurt of the single meal type | mold which has a fine grain, high viscosity, good fluidity | liquidity, and has the physical property different from the conventional post-fermentation type yoghurt can be provided. Moreover, in this invention, the manufacturing time of such a single meal type post-fermentation type yoghurt can be shortened.
[Brief description of the drawings]
FIG. 1 shows changes in shear stress due to an increase in shear rate when the mixed lactic acid bacteria starter of the present invention of Test Example 1 is used and when a control mixed lactic acid bacteria starter is used.

Claims (3)

高温菌で高粘性産生能を有するラクトバチルス・ブルガリクス(Lactobacillus bulgaricus) SBT 0098(FERM P-9440)及びストレプトコッカス・サーモフィルス(Streptococcus thermophilus) SBT 0113(FERM P-9443) からなる混合乳酸菌スターターを使用して得ることのできる高粘度で流動性の良好な後発酵型ヨーグルト。 Lactobacillus bulgaricus SBT 0098 (FERM P-9440) and Streptococcus thermophilus SBT 0113 (FERM P-9443) mixed lactobacillus starter with high viscosity and high viscosity A post-fermentation yogurt with high viscosity and good fluidity. 剪断応力の最大値が 1.1×105mPa以上である請求項1に記載の高粘度で流動性の良好な後発酵型ヨーグルト。The post-fermentation yogurt having high viscosity and good fluidity according to claim 1, wherein the maximum value of shear stress is 1.1 x 10 5 mPa or more. ヨーグルトミックスに、高温菌で高粘性産生能を有するラクトバチルス・ブルガリクスSBT 0098(FERM P-9440)及びストレプトコッカス・サーモフィルスSBT 0113(FERM P-9443)からなる混合乳酸菌スターターを添加して、容器に充填し、発酵させることを特徴とする高粘度で流動性の良好な後発酵型ヨーグルトの製造法。To the yogurt mix, a mixed lactic acid bacteria starter consisting of Lactobacillus bulgaricus SBT 0098 (FERM P-9440) and Streptococcus thermophilus SBT 0113 (FERM P-9443), which have high viscosity and high viscosity, is added to the container. A method for producing post-fermented yogurt with high viscosity and good fluidity, characterized in that it is filled and fermented.
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