JP2005102602A - Oil-in-water emulsion - Google Patents

Oil-in-water emulsion Download PDF

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JP2005102602A
JP2005102602A JP2003341107A JP2003341107A JP2005102602A JP 2005102602 A JP2005102602 A JP 2005102602A JP 2003341107 A JP2003341107 A JP 2003341107A JP 2003341107 A JP2003341107 A JP 2003341107A JP 2005102602 A JP2005102602 A JP 2005102602A
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oil
water emulsion
alkali metal
emulsion
protein
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JP4316339B2 (en
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Kazuhiro Habara
一宏 羽原
Mitsuo Uozumi
充男 魚住
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Morinaga Milk Industry Co Ltd
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Morinaga Milk Industry Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide oil-in-water emulsion which even a person who has an allergic constitution can appreciate because substantially not containing protein and a resolvent of the protein turning to an allergen, excellent in emulsifying stability to heat or acid when added to coffee or cooked dish, and also having favorable appearance and flavor. <P>SOLUTION: The oil-in-water emulsion comprises oils and fats, succinate monoglyceride and alkaline metallic salt (except for carbonate). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、水中油型乳化物に関するものであり、特に、アレルゲンとなる蛋白質及び該蛋白質の分解物を実質的に含有しないため食物アレルギー体質の人も賞味できる水中油型乳化物に関する。   The present invention relates to an oil-in-water emulsion, and in particular, to an oil-in-water emulsion that can be enjoyed by people with food allergies because it does not substantially contain an allergen protein and a degradation product of the protein.

従来のコーヒーホワイトナー、料理用クリーム等の水中油型乳化物であるクリーム状食品は、熱や酸による乳化破壊を生じさせないことを目的として、乳化剤及びpH調整剤の他に蛋白質及びその分解物成分を含んでいるのが一般的であった。   Cream-like foods that are oil-in-water emulsions such as conventional coffee whiteners and cooking creams, in addition to emulsifiers and pH adjusters, and their degradation products, in order to prevent emulsion breakage due to heat and acid It was common to contain ingredients.

しかし、近年、食物アレルギーについての関心が高まっており、食物アレルギーの原因になるアレルゲンとして代表的な牛乳、卵、大豆等の蛋白質の含有量を低減させた食品の開発が望まれている。   However, in recent years, interest in food allergies has increased, and the development of foods with reduced protein content such as milk, eggs, and soybeans, which are typical allergens that cause food allergies, is desired.

そこで、乳化剤を工夫することにより、蛋白質の含有量を低減させた乳化組成物として、有機酸モノグリセリドと炭酸のアルカリ金属塩とを含有する乳化組成物が提案されている(例えば特許文献1参照)。
特公平3−67734号公報
Therefore, an emulsion composition containing an organic acid monoglyceride and an alkali metal carbonate is proposed as an emulsion composition in which the protein content is reduced by devising an emulsifier (see, for example, Patent Document 1). .
Japanese Patent Publication No. 3-67734

しかしながら、特許文献1に係る乳化組成物については、熱や酸に対しての乳化安定性が不充分であり、コーヒーに使用した場合には特に乳化が不安定であるという問題があった。   However, the emulsion composition according to Patent Document 1 has a problem that the emulsion stability to heat and acid is insufficient, and the emulsion is particularly unstable when used for coffee.

本発明は、上記従来技術の問題点に鑑み、アレルゲンとなる蛋白質及び該蛋白質の分解物を実質的に含有しないことでアレルギー体質の人も賞味でき、かつコーヒーや加熱料理に添加した際の熱又は酸に対して乳化安定性に優れており、外観・風味も良好な水中油型乳化物を提供することを目的とする。   In view of the above-mentioned problems of the prior art, the present invention can be enjoyed by allergic persons by substantially not containing an allergen protein and a degradation product of the protein, and heat when added to coffee or cooked food. Alternatively, an object of the present invention is to provide an oil-in-water emulsion that has excellent emulsification stability with respect to an acid and has a good appearance and flavor.

本発明は、油脂類と、コハク酸モノグリセリドと、アルカリ金属塩(炭酸塩を除く。)とを含有することを特徴とする水中油型乳化物を提供する。   The present invention provides an oil-in-water emulsion comprising oils and fats, succinic monoglyceride, and an alkali metal salt (excluding carbonate).

本発明によれば、アレルギー体質の人も賞味できるようにすることを目的としてアレルゲンとなる蛋白質及び該蛋白質の分解物を実質的に含ませないこととしてもコーヒーや加熱料理に添加した際の熱又は酸に対して乳化安定性に優れ、外観・風味も良好な水中油型乳化物とすることができる。   According to the present invention, the heat when added to coffee or cooked food can be substantially free of protein that becomes an allergen and a degradation product of the protein for the purpose of allowing people with allergies to appreciate it. Or it can be set as the oil-in-water type emulsion which is excellent in emulsification stability with respect to an acid, and whose external appearance and flavor are also favorable.

本発明の水中油型乳化物は、油脂類と、乳化剤であるコハク酸モノグリセリドと、アルカリ金属塩(炭酸塩を除く。)とを含む組成物である。
本発明における油脂類は、一般的な食用油が挙げられる。本発明では精製食用油を用いることが好ましい。具体的には、植物性油脂やラウリン系油脂が挙げられる。その中でも、乳化安定性の点からヤシ油等のラウリン系油脂又は菜種油が好ましい。精製食用油脂中の蛋白質濃度は、日本マーガリン工業会により1ppm以下であることが規定されている。したがって、精製食用油を用いれば、蛋白質濃度が1ppm以下である水中油型乳化物を容易に作ることができる。
水中油型乳化物中の油脂含有量は、乳化物に対して10〜40質量%が好ましく、15〜35質量%がより好ましい。油脂含有量が少ないとコーヒーや加熱料理に添加した際の白濁性や風味に与える効果が低くなり、また多いと安定な水中油型乳化状態を保つことが出来なくなる。
The oil-in-water emulsion of the present invention is a composition comprising fats and oils, succinic monoglyceride as an emulsifier, and an alkali metal salt (excluding carbonate).
Examples of the fats and oils in the present invention include general edible oils. In the present invention, it is preferable to use purified edible oil. Specific examples include vegetable oils and lauric oils. Among these, lauric fats and oils such as coconut oil or rapeseed oil are preferable from the viewpoint of emulsion stability. The protein concentration in refined edible fats and oils is regulated by the Japan Margarine Industry Association to be 1 ppm or less. Therefore, if purified edible oil is used, an oil-in-water emulsion having a protein concentration of 1 ppm or less can be easily prepared.
The oil / fat content in the oil-in-water emulsion is preferably 10 to 40% by mass and more preferably 15 to 35% by mass with respect to the emulsion. When the fat content is low, the effect on the cloudiness and flavor when added to coffee or cooked food is low, and when it is high, a stable oil-in-water emulsified state cannot be maintained.

本発明においては、乳化剤としてコハク酸モノグリセリドを用いる。
コハク酸モノグリセリドの含有量は、乳化物の安定性と風味に鑑み、乳化物に対して0.1〜2質量%が好ましい。コハク酸モノグリセリドの含有量が0.1質量%より少ないと乳化が不安定となり、2質量%より多いと風味に影響することとなる。
In the present invention, succinic monoglyceride is used as an emulsifier.
The content of succinic monoglyceride is preferably 0.1 to 2% by mass with respect to the emulsion in view of the stability and flavor of the emulsion. When the content of succinic acid monoglyceride is less than 0.1% by mass, emulsification becomes unstable, and when it is more than 2% by mass, the flavor is affected.

本発明においては、コハク酸モノグリセリドと併せてアルカリ金属塩を使用する。このアルカリ金属塩は、炭酸塩を除くアルカリ金属塩であればいずれであってもよい。炭酸塩を除くアルカリ金属塩としては、具体的には、クエン酸三ナトリウム、リン酸二水素一ナトリウム、リン酸三ナトリウム、及びリン酸三カリウムからなる群から選択される少なくとも1種以上のアルカリ金属塩が挙げられる。その中でも、クエン酸三ナトリウム又はリン酸三カリウムが好ましい。
これらのアルカリ金属塩の含有量は、乳化物の安定性と風味に鑑み、乳化物に対して0.01〜1質量%が好ましい。これらのアルカリ金属塩の含有量が0.01質量%より少ないと乳化が不安定となり、1質量%より多いと風味に影響することとなる。
In the present invention, an alkali metal salt is used in combination with succinic monoglyceride. The alkali metal salt may be any alkali metal salt excluding carbonate. Specifically, the alkali metal salt excluding carbonate is at least one alkali selected from the group consisting of trisodium citrate, monosodium dihydrogen phosphate, trisodium phosphate, and tripotassium phosphate. Metal salts are mentioned. Among these, trisodium citrate or tripotassium phosphate is preferable.
In view of the stability and flavor of the emulsion, the content of these alkali metal salts is preferably 0.01 to 1% by mass with respect to the emulsion. When the content of these alkali metal salts is less than 0.01% by mass, emulsification becomes unstable, and when the content is more than 1% by mass, the flavor is affected.

本発明の水中油型乳化物には、用途に応じて他の成分を添加することができる。例えば、練乳のように生苺にかけて食するクリーム状食品としての用途では、糖類又は糖アルコール類を含有させることにより、好ましい食味とボディー感を水中油型乳化物に与えることができる。糖類、糖アルコール類は、アレルゲンとなる蛋白質及びその分解物を実質的に含まないものであることが好ましい。その中でも、糖類としては、砂糖、ブドウ糖、麦芽糖、オリゴ糖、デキストリン等が挙げられる。また、糖アルコールとしては、食品に一般に使用される糖アルコールであるソルビトール、キシリトール、エリスリトール等が挙げられる。   Other components can be added to the oil-in-water emulsion of the present invention depending on the application. For example, in the use as a cream-like food eaten with ginger like condensed milk, a preferred taste and body feeling can be imparted to the oil-in-water emulsion by containing sugars or sugar alcohols. Saccharides and sugar alcohols are preferably substantially free of allergen proteins and their degradation products. Among them, examples of the saccharide include sugar, glucose, maltose, oligosaccharide, and dextrin. Examples of the sugar alcohol include sorbitol, xylitol, and erythritol, which are sugar alcohols generally used in foods.

本発明においては、上述した成分のほかに添加物として、好ましい風味、外観、保存性を付与する目的で香料、着色料、保存料等の成分を適宜配合することができる。これらの添加物もアレルゲンとなる蛋白質及びその分解物を実質的に含まないものであることが好ましい。   In the present invention, in addition to the components described above, components such as a fragrance, a colorant, and a preservative can be appropriately blended as additives in order to impart a preferable flavor, appearance, and preservability. These additives are also preferably substantially free of allergen proteins and their degradation products.

本発明の水中油型乳化物を製造するには、まず溶解水にアルカリ金属塩とその他糖類等の水溶性の添加物を混合し、昇温させて水相部とする。次に、油脂類を昇温融解し、これに乳化剤であるコハク酸モノグリセリドを添加して油相部とする。そして、水相部と油相部とを混合し、ミキサーにて予備乳化させる。次に、この混合液を昇温し、均質機にて均質化させ、その後、急冷させる。   In order to produce the oil-in-water emulsion of the present invention, first, an alkali metal salt and other water-soluble additives such as sugars are mixed in dissolved water, and the temperature is raised to obtain an aqueous phase part. Next, the oils and fats are heated and melted, and succinic acid monoglyceride as an emulsifier is added thereto to form an oil phase part. Then, the water phase part and the oil phase part are mixed and pre-emulsified with a mixer. Next, this mixed liquid is heated, homogenized by a homogenizer, and then rapidly cooled.

以下、実施例により、本発明をさらに詳しく説明する。本発明は、下記実施例に何ら制限されるものではない。なお、以下の実施例において、「%」は「質量%」を示す。
[実施例1]
Hereinafter, the present invention will be described in more detail by way of examples. The present invention is not limited to the following examples. In the following examples, “%” represents “mass%”.
[Example 1]

溶解水67.3%に、アルカリ金属塩であるクエン酸三ナトリウム0.2%と上白糖2.0%とを添加し、60〜70℃に昇温させて水相部を得た。油脂類である精製ヤシ油30%を60〜70℃に昇温融解し、これに乳化剤であるコハク酸モノグリセリド0.5%を添加して油相部を得た。水相部と油相部とを混合させ、ミキサーにて予備乳化を行った。次に、この混合液を80℃まで昇温させ、均質機(三丸機械工業製 流量200L/h)を用いて一段目を14.0MPa、二段目を1.0MPaの圧力にして均質化させた。その後、0〜10℃の冷蔵温度帯に急冷させて水中油型乳化物を得た。
水中油型乳化物の成分の配合量(単位 %)を表1に示す。
To 67.3% of dissolved water, 0.2% of trisodium citrate which is an alkali metal salt and 2.0% of super white sugar were added, and the temperature was raised to 60 to 70 ° C. to obtain an aqueous phase part. 30% of refined coconut oil, which is an oil and fat, was melted at 60 to 70 ° C., and 0.5% of succinic acid monoglyceride as an emulsifier was added thereto to obtain an oil phase part. The water phase part and the oil phase part were mixed and pre-emulsified with a mixer. Next, this mixed liquid is heated to 80 ° C. and homogenized by using a homogenizer (flow rate 200 L / h, manufactured by Sanmaru Kikai Kogyo Co., Ltd.) with the first stage having a pressure of 14.0 MPa and the second stage having a pressure of 1.0 MPa. I let you. Then, it was rapidly cooled to a refrigerated temperature range of 0 to 10 ° C. to obtain an oil-in-water emulsion.
Table 1 shows the amounts (unit%) of the components of the oil-in-water emulsion.

(評価方法)
得られた水中油型乳化物の外観の評価を行った。試料を目視観察し、凝集物が認められなかった場合を良好とした。
また、耐熱性及び耐酸性を評価するため、市販のインスタントコーヒー及び砂糖をそれぞれ2.5質量%及び3.0質量%の濃度で熱湯に溶解させ、得られたコーヒー液(85℃、pH4.77)100mLに、実施例1で得られた水中油型乳化物を2g添加し、コーヒー中の外観を目視で観察して評価した。白濁性が良く、油分が分離して表面に浮上(オイルオフ)しなかった場合を良好とした。以下、この評価方法を「コーヒーテスト」という。
結果を表1に示す。
(Evaluation methods)
The appearance of the obtained oil-in-water emulsion was evaluated. The sample was visually observed, and the case where no aggregate was observed was regarded as good.
Moreover, in order to evaluate heat resistance and acid resistance, commercially available instant coffee and sugar were dissolved in hot water at concentrations of 2.5% by mass and 3.0% by mass, respectively, and the obtained coffee liquid (85 ° C., pH 4. 77) To 100 mL, 2 g of the oil-in-water emulsion obtained in Example 1 was added, and the appearance in the coffee was visually observed and evaluated. The case where the white turbidity was good and the oil separated and did not float on the surface (oil off) was determined to be good. Hereinafter, this evaluation method is referred to as “coffee test”.
The results are shown in Table 1.

Figure 2005102602
Figure 2005102602

[実施例2−8、比較例1−4]
油脂、乳化剤、及びアルカリ金属塩の種類及び配合量並びに溶解水の配合量を種々変更した他は実施例1と同様にして、水中油型乳化物を製造した。具体的配合量を表1又は表2に示す。得られた各水中油型乳化物について実施例1と同様の評価方法を用いて、外観及びコーヒーテストについて評価した。結果を表1又は表2に示す。
[Example 2-8, Comparative Example 1-4]
An oil-in-water emulsion was produced in the same manner as in Example 1 except that the types and blending amounts of fats and oils, emulsifiers and alkali metal salts and the blending amount of dissolved water were variously changed. Specific blending amounts are shown in Table 1 or Table 2. Each oil-in-water emulsion thus obtained was evaluated for appearance and coffee test using the same evaluation method as in Example 1. The results are shown in Table 1 or Table 2.

Figure 2005102602
Figure 2005102602

実施例1−8と比較例1の結果とを比較すると、乳化剤としてコハク酸モノグリセリドと共に、炭酸塩を除くアルカリ金属塩を添加した実施例1−8の方が、コハク酸モノグリセリドのみを添加した比較例1よりも外観・風味及びコーヒーテストの結果は良好であった。この結果から、コハク酸モノグリセリドの他にアルカリ金属塩の存在が乳化に効果的であることが確認された。   Comparing the results of Example 1-8 and Comparative Example 1, in comparison with Example 1-8 in which an alkali metal salt excluding carbonate was added together with succinic acid monoglyceride as an emulsifier, only succinic acid monoglyceride was added. The appearance / flavor and coffee test results were better than in Example 1. From this result, it was confirmed that the presence of an alkali metal salt in addition to succinic acid monoglyceride is effective for emulsification.

次に、実施例1−8と比較例2、3の結果とを比較すると、乳化剤にコハク酸モノグリセリドを使用した実施例1−8の方が、他の乳化剤を用いた比較例2、3よりも外観・風味及びコーヒーテストの結果は良好であった。この結果から、乳化剤として蔗糖脂肪酸エステルやソルビタン脂肪酸エステルを使用した場合には乳化は安定せず、コハク酸モノグリセリドを使用すると乳化安定効果が大きくなることが確認された。   Next, when comparing the results of Example 1-8 and Comparative Examples 2 and 3, Example 1-8 using succinic monoglyceride as an emulsifier is more than Comparative Examples 2 and 3 using other emulsifiers. The appearance / flavor and coffee test were good. From this result, it was confirmed that when sucrose fatty acid ester or sorbitan fatty acid ester was used as an emulsifier, the emulsification was not stable, and when succinic monoglyceride was used, the emulsification stability effect was increased.

また、実施例5、8と比較例4の結果とを比較すると、炭酸塩でないアルカリ金属塩を添加した実施例5、8の方が、アルカリ金属の炭酸塩を添加した比較例4よりもコーヒーテストの結果は良好であった。この結果から、アルカリ金属の炭酸塩を使用した場合に比べて、炭酸塩でないアルカリ金属塩を使用した場合の方が乳化に優れていることが確認された。   In addition, comparing the results of Examples 5 and 8 with the results of Comparative Example 4, Examples 5 and 8 to which an alkali metal salt that is not a carbonate was added were more coffee than Comparative Example 4 to which an alkali metal carbonate was added. The test result was good. From this result, it was confirmed that the use of an alkali metal salt that is not a carbonate is superior to emulsification compared to the case of using an alkali metal carbonate.

以上述べたように実施例1−8で得られた水中油型乳化物は、アレルゲンとなる蛋白質及びその分解物の含有量を実質的に含有していないにも関わらず乳化安定性に優れ、かつ外観・風味が良好なものであった。


As described above, the oil-in-water emulsion obtained in Example 1-8 is excellent in emulsion stability even though it does not substantially contain the allergen protein and its degradation product, In addition, the appearance and flavor were good.


Claims (3)

油脂類と、コハク酸モノグリセリドと、アルカリ金属塩(炭酸塩を除く。)とを含有することを特徴とする水中油型乳化物。   An oil-in-water emulsion comprising oils and fats, succinic monoglyceride, and an alkali metal salt (excluding carbonate). アレルゲンとなる蛋白質及び該蛋白質の分解物の含有量が1ppm以下である請求項1に記載の水中油型乳化物。   The oil-in-water emulsion according to claim 1, wherein the content of the protein that becomes an allergen and a degradation product of the protein is 1 ppm or less. 前記アルカリ金属塩が、
クエン酸三ナトリウム、リン酸二水素一ナトリウム、リン酸三ナトリウム、及びリン酸三カリウムからなる群から選択される少なくとも1種以上のアルカリ金属塩である請求項1又は2に記載の水中油型乳化物。

The alkali metal salt is
The oil-in-water type according to claim 1 or 2, which is at least one alkali metal salt selected from the group consisting of trisodium citrate, monosodium dihydrogen phosphate, trisodium phosphate, and tripotassium phosphate. Emulsion.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012504407A (en) * 2008-10-06 2012-02-23 ネステク ソシエテ アノニム Low protein and protein free liquid creamer, liquid creamer concentrate and powdered creamer, and methods for producing them

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012504407A (en) * 2008-10-06 2012-02-23 ネステク ソシエテ アノニム Low protein and protein free liquid creamer, liquid creamer concentrate and powdered creamer, and methods for producing them

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