JP2014212735A - Gelatinous nutritive composition - Google Patents
Gelatinous nutritive composition Download PDFInfo
- Publication number
- JP2014212735A JP2014212735A JP2013093125A JP2013093125A JP2014212735A JP 2014212735 A JP2014212735 A JP 2014212735A JP 2013093125 A JP2013093125 A JP 2013093125A JP 2013093125 A JP2013093125 A JP 2013093125A JP 2014212735 A JP2014212735 A JP 2014212735A
- Authority
- JP
- Japan
- Prior art keywords
- gel
- protein
- casein
- breaking strength
- composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- A23L1/06—
-
- A23L1/30—
Abstract
Description
本発明は、良質な蛋白質を高濃度で含み、適切なゲルの破断強度であり、かつ風味が良好なゲル状栄養組成物に関する。 The present invention relates to a gel-like nutritional composition that contains a high-quality protein at a high concentration, has an appropriate gel breaking strength, and has a good flavor.
近年、医療介護業界において「ＱＯＬの向上」が重要視されている｛ＱＯＬ：Ｑｕａｌｉｔｙ ｏｆ Ｌｉｆｅ（生活の質）｝。ＱＯＬの低下として挙げられる最も大きな問題は、寝たきりの患者における褥瘡（床ずれ）である。この症状は、摂取する栄養の不足、特に蛋白質成分の不足により発症しやすいことが知られている。患者や高齢者の栄養不足に対応するため、医療介護施設内に、ＮＳＴ（Ｎｕｔｒｉｔｉｏｎ Ｓｕｐｐｏｒｔ Ｔｅａｍ）と呼ばれる、栄養管理を職種の壁を越えて実践する集団が結成されている。このような背景に基づき、ＮＳＴ活動で適切な栄養を容易に摂取できる食品が求められている。特に、蛋白質成分は栄養成分として重要であるにも関わらず、食の細くなりがちな高齢者は、通常の食品から摂取しづらいので、蛋白質成分を高含有する食品のニーズが高くなってきている。 In recent years, “improvement of QOL” has been regarded as important in the medical care industry {QOL: Quality of Life}. The biggest problem listed as lowering QOL is pressure ulcers (bed sores) in bedridden patients. It is known that this symptom is likely to develop due to a lack of nutrition, particularly a protein component. In order to cope with the nutritional deficiencies of patients and the elderly, a group called Nutrition Support Team (NST) that practices nutrition management across the barriers of occupation is formed in medical care facilities. Based on this background, there is a demand for foods that can easily take appropriate nutrition through NST activities. In particular, although protein components are important as nutritional components, elderly people who tend to be thin are difficult to consume from normal foods, so there is an increasing need for foods that contain high protein components. .
医療介護業界のみならず、若齢者から高齢者まで健康に人生を送りたいとの願望を持った人たちが増加し、ジョギングやウェイトトレーニング等の運動が行われるようになってきている。これは運動により代謝を促し蓄積脂肪を消費する目的のほか、筋肉の増強による基礎代謝量の向上を目的としている。これらを効率よく実施するためには、運動に併せて効果的な栄養補給が望まれる。特に、筋肉の構成成分である蛋白質を、不足することなく良質なかたちで補給することが効果的である。 In addition to the medical care industry, an increasing number of people who wish to live a healthy life from young people to senior citizens are exercising, and exercises such as jogging and weight training are being carried out. In addition to the purpose of accelerating metabolism by exercising and consuming accumulated fat, it aims to improve basal metabolism by strengthening muscles. In order to carry out these efficiently, effective nutrition supplementation is desired in conjunction with exercise. In particular, it is effective to replenish protein, which is a component of muscle, in a high quality form without being deficient.
良質な蛋白質食品として肉類、魚類、卵類、豆類等が知られている。ところが、種々の疾患により咀嚼や嚥下の能力が低下した患者や高齢者にとって、これらのほとんどの食品は咀嚼するのに硬く、嚥下するのに飲み込みにくい摂食しにくい形態（物性）である。一方、運動に併せて蛋白質を摂取したい人たちにとって、肉類、魚類、卵類、豆類等は調理を必要とするため非常に煩わしい。このため、運動前後に粉末状プロテイン等の摂取が利用されているが、これらは一旦水に溶解させてから飲む必要があり簡易的とはいえない。よって用時調整が不要な吸い口付きのパウチゼリーが販売されているが、これらの容器では吸い込みやすくするためにゲルが柔らかいことが必須である。 Meat, fish, eggs, beans, and the like are known as high-quality protein foods. However, for patients and elderly people whose ability to chew and swallow have been reduced due to various diseases, most of these foods are hard to chew and are difficult to swallow to swallow (physical properties). On the other hand, meat, fish, eggs, beans, etc. are very troublesome for people who want to take protein in conjunction with exercise because they require cooking. For this reason, intake of powdered protein and the like is used before and after exercise, but these need to be dissolved once in water and cannot be said to be simple. Therefore, pouch jelly with a mouthpiece that does not require adjustment at the time of use is sold, but in these containers, it is essential that the gel is soft in order to facilitate inhalation.
良質な蛋白質食品の他の例として乳酸菌飲料やヨーグルト等の乳類が知られている。咀嚼や嚥下の能力が低下した患者や高齢者にとって、これらは比較的摂食しやすい形態であるが、蛋白質含量が低く、例えば、乳酸菌飲料の蛋白質成分含有量は０．５〜２質量％であり、一般的なヨーグルトではその蛋白質成分含有量はせいぜい４質量％である。また吸い口付きパウチゼリー入りのプロテインゼリーの蛋白質成分含有量もせいぜい２〜５質量％である。 Other examples of high-quality protein foods include lactic acid bacteria beverages and milk such as yogurt. For patients and elderly people with reduced chewing and swallowing abilities, these are relatively easy to eat, but the protein content is low, for example, the protein component content of lactic acid bacteria beverages is 0.5-2% by mass. In general yogurt, the protein component content is at most 4% by mass. Moreover, the protein component content of the protein jelly containing the pouch jelly with the mouthpiece is 2 to 5% by mass at most.
医療介護用や運動補給用を問わず、蛋白質を多く含む液状またはゲル状の加工食品が販売されている。しかし、これらの多くは蛋白質含有量が充分でなかったり、蛋白質の質を示すアミノ酸スコアが低かったり、飲食に適さない物性であったり、特有の悪い風味を有したりしていた。 Regardless of whether it is for medical care or exercise supplement, liquid or gel processed foods containing a large amount of protein are on the market. However, many of these have insufficient protein content, have low amino acid scores indicating protein quality, have physical properties that are not suitable for eating and drinking, and have a peculiar bad taste.
特許文献１には、高水分高蛋白質を含有するゲルが開示されている。しかし、総合乳蛋白質を使用することを開示又は示唆をしていない。さらに、実施例１及び２では、アミノ酸スコアが低く（概算値で２２及び３０）、栄養価が低い。さらに、実施例３及び４では、高アミノ酸スコア（概算値で７２及び７８）の例が開示されているが、この技術では、ゲルの破断強度が高すぎて、実用上、前記のような病人や老人のような、咀嚼、嚥下困難者用の食品として充分満足できるものとはいえない。したがって、アミノ酸スコアが高く、ゲルの破断強度が充分低いゲルが達成されておらず、病人や老人のような、咀嚼、嚥下困難者用の食品として充分満足できるものではなく、健常者であっても飲食しやすい形態ではない。 Patent Document 1 discloses a gel containing a high moisture and high protein. However, it does not disclose or suggest the use of synthetic milk proteins. Further, in Examples 1 and 2, the amino acid score is low (approximate values 22 and 30) and the nutritional value is low. Furthermore, in Examples 3 and 4, examples of high amino acid scores (approximate values 72 and 78) are disclosed. However, in this technique, the gel break strength is too high, and thus the above-mentioned sick people are practically used. It cannot be said that it is sufficiently satisfactory as a food for people with difficulty in chewing or swallowing such as elderly people. Therefore, a gel with a high amino acid score and a sufficiently low breaking strength of the gel has not been achieved, and it is not satisfactory as a food for people with mastication and difficulty swallowing, such as sick people and elderly people. Is not easy to eat and drink.
特許文献２には、厚生省高齢者用食品試験法による測定で５×１０５Ｎ／ｍ２以下の硬さを有し、デキストリン又は還元デキストリンを用いた高栄養固形状食品が開示されている。しかし、総合乳蛋白質を使用することを開示又は示唆をしていない。さらに、これらの用途はかまぼこやチーズのものであり、実用上、高齢者の咀嚼、嚥下に充分適した物性とはいえない。 Patent Document 2 discloses a highly nutritious solid food using a dextrin or reduced dextrin having a hardness of 5 × 10 5 N / m 2 or less as measured by a food test method for elderly people from the Ministry of Health and Welfare. However, it does not disclose or suggest the use of synthetic milk proteins. Furthermore, these uses are for kamaboko and cheese, and it cannot be said that they are practically suitable for chewing and swallowing of elderly people.
特許文献３には、カゼインナトリウム、寒天およびカラギーナンを用いたゲル状油脂配合食品用組成物が開示されている。しかし、この技術では、易嚥下性やゲルの破断強度について言及されておらず、例えば、実施例３に示されているゲル強度２５５ｇ／ｃｍ２（約２．５×１０４Ｎ／ｍ２）では、高齢者の咀嚼、嚥下に充分適したゲルとは言えない。 Patent Document 3 discloses a composition for a gel-like oil and fat blended food using sodium caseinate, agar, and carrageenan. However, in this technique, no mention is made of the swallowability and the breaking strength of the gel. For example, the gel strength shown in Example 3 is 255 g / cm 2 (about 2.5 × 10 4 N / m 2 ). Therefore, it cannot be said that the gel is suitable for chewing and swallowing of the elderly.
特許文献４には、加熱ゲル化性蛋白質（乳ホエイ蛋白質、一部の大豆蛋白質、一部の鶏卵蛋白質等）を必須とするゲル状食品組成物が開示されている。この技術によれば、高蛋白質でアミノ酸スコアが高く、レトルト殺菌処理により常温保存可能である等の特徴を有するゲル状食品組成物が提供される。しかしながら、近年、風味的な要求の高まっている市場において、加熱ゲル化性蛋白質の使用による加熱臭の点から、汎用化の難しい技術であるといえる。 Patent Document 4 discloses a gel food composition essentially comprising a heat-gelling protein (milk whey protein, some soybean protein, some chicken egg protein, etc.). According to this technique, a gel food composition having features such as high protein, high amino acid score, and ability to be stored at room temperature by retort sterilization is provided. However, it can be said that it is a difficult technology for general use in the market where flavor demands are increasing in recent years from the viewpoint of heating odor due to the use of heat-gelling protein.
特許文献５には、蛋白質を高含有でき、風味が爽やかであり、ざらつきが少ない飲料、ゼリー等の水性食品が開示されており、これらは乳や大豆や鶏卵等の蛋白質分解物を使用することで、酸性下でも蛋白質の凝集物を微粒子化し、ざらつきなく安定化するものである。しかし、ｐＨ３〜５であるため、酸味を嫌う傾向にある高齢者には不向きであり、さらには酸味によるむせかえしにより、誤嚥を誘発し肺炎の原因となる。 Patent Document 5 discloses water-based foods such as beverages and jellies, which can contain a high amount of protein, have a refreshing flavor, and have little roughness, and these use protein degradation products such as milk, soybeans and chicken eggs. Thus, protein agglomerates are finely divided even under acidic conditions and stabilized without roughness. However, since it is pH 3-5, it is unsuitable for elderly people who tend to dislike acidity, and further, aspiration caused by acidity induces aspiration and causes pneumonia.
特許文献６、特許文献７及び特許文献８には、高カロリーでありながら、粘性が低く、蛋白質の凝集や沈澱がない流動食が開示されており、そのなかで全乳蛋白質が使用されている。しかし、これらの先行特許文献には液状栄養食のみが開示されており、本発明のゲル状栄養組成物とは、組成及び物性が明らかに異なる。 Patent Literature 6, Patent Literature 7 and Patent Literature 8 disclose a liquid food that is high in calories but low in viscosity and free from protein aggregation and precipitation, and whole milk protein is used therein. . However, only these liquid nutritional foods are disclosed in these prior patent documents, and the composition and physical properties are clearly different from the gel-like nutritional composition of the present invention.
非特許文献１及び非特許文献２には、各種乳タンパク質素材の組成と、その溶液の濃度と粘度の関係が示され、カゼインとホエイの比率が９０：１０である総合乳タンパク質（ＭＣＩ）が最も粘度が低いことが記載されている。しかし、これらをゲル化させてゲル状栄養組成物とすることは、開示又は示唆がされていない。 Non-Patent Document 1 and Non-Patent Document 2 show the composition of various milk protein materials, the relationship between the concentration and viscosity of the solution, and the total milk protein (MCI) in which the ratio of casein to whey is 90:10. The lowest viscosity is described. However, there is no disclosure or suggestion of gelling these to obtain a gel-like nutritional composition.
非特許文献３及び非特許文献４には、精密濾過等で得られたカゼインミセルに関する水への溶解性、保水性、起泡性及びレンネットゲルに関する物性が記載されている。しかし、これらをゲル化させてゲル状栄養組成物とすることは、開示又は示唆がされていない。なお、レンネットゲルとは、哺乳動物の胃等から得られた酵素によりカゼインミセルの溶解性を低下させ凝固させたチーズの製造に用いられる方法であり、増粘多糖類でゲル化させた際のいわゆるゼリーのゲル化とは全く異なるメカニズムであり、一般的に硬いゲルとなる。 Non-Patent Document 3 and Non-Patent Document 4 describe solubility in water, water retention, foaming properties and physical properties of rennet gel related to casein micelles obtained by microfiltration and the like. However, there is no disclosure or suggestion of gelling these to obtain a gel-like nutritional composition. Rennet gel is a method used for the production of cheese that has been solidified by reducing the solubility of casein micelles using enzymes obtained from the stomach of mammals, etc. When gelled with thickening polysaccharides This is a completely different mechanism from the so-called gelation of jelly, and generally becomes a hard gel.
上記のとおり、良質な蛋白質を高濃度で含み、適切なゲルの破断強度であり、かつ風味が良好なゲル状栄養組成物は、これまでになかった。
そこで、本発明は、良質な蛋白質を高濃度で含み、適切なゲルの破断強度であり、かつ風味が良好なゲル状栄養組成物を提供することである。
As described above, there has never been a gel-like nutritional composition containing a high-quality protein at a high concentration, having an appropriate gel breaking strength, and having a good flavor.
Therefore, the present invention is to provide a gel-like nutritional composition that contains a high-quality protein at a high concentration, has an appropriate gel breaking strength, and has a good flavor.
本発明者らは、鋭意検討したところ、総合乳蛋白質中のカゼインとホエイ蛋白質を特定の比率にしたゲル状食品組成物が、良質な蛋白質を高濃度で含み、適切なゲルの破断強度であり、かつ風味が良好なゲル状栄養組成物であることを見出し、本発明を完成させた。
本発明は、以下の通りである。
As a result of intensive studies, the present inventors have found that a gel-like food composition having a specific ratio of casein and whey protein in a total milk protein contains a high-quality protein at a high concentration and has an appropriate gel breaking strength. And it discovered that it was a gel-like nutritional composition with favorable flavor, and completed this invention.
The present invention is as follows.
１．ゲル化剤及び総合乳蛋白質を含むゲル状栄養組成物であって、
アミノ酸スコアが８０〜１００であり、
該組成物中の蛋白質含量が６〜２０質量％であり、
ゲルの破断強度が１８００〜１００００Ｎ／ｍ２であり、並びに
該総合乳蛋白質中のカゼインとホエイ蛋白質の比率が８３：１７〜１００：０である、
ことを特徴とするゲル状栄養組成物。
２．前記カゼインとホエイ蛋白質の比率が８５：１５〜１００：０であることを特徴とする前項１に記載のゲル状栄養組成物。
３．前記ゲルの破断強度が１９００〜６０００Ｎ／ｍ２であることを特徴とする前項１又は２に記載のゲル状栄養組成物。
４．前記総合乳蛋白質は、精密濾過により脱脂乳から得られることを特徴とする前項１〜３のいずれか１に記載のゲル状栄養組成物。
1. A gel-like nutritional composition comprising a gelling agent and a total milk protein,
The amino acid score is 80-100,
The protein content in the composition is 6 to 20% by mass,
The breaking strength of the gel is 1800 to 10000 N / m 2 , and the ratio of casein to whey protein in the total milk protein is 83:17 to 100: 0,
A gel-like nutritional composition characterized by the above.
2. 2. The gel nutrition composition according to item 1 above, wherein the ratio of casein to whey protein is 85:15 to 100: 0.
3. 3. The gel nutrition composition according to item 1 or 2, wherein the gel has a breaking strength of 1900 to 6000 N / m 2 .
4). 4. The gel nutrition composition according to any one of items 1 to 3, wherein the total milk protein is obtained from skim milk by microfiltration.
本発明によれば、良質な蛋白質を高濃度で含み、適切なゲルの破断強度であり、かつ風味が良好なゲル状栄養組成物を提供できる。 According to the present invention, it is possible to provide a gel-like nutritional composition that contains a high-quality protein at a high concentration, has an appropriate gel breaking strength, and has a good flavor.
（ゲル状栄養組成物）
本発明のゲル状栄養組成物とは、ヒトを含む動物が食するためのゲル状の食品である。
該組成物の基本組成は、総合乳蛋白質、ゲル化剤、水から構成され、好ましくは、糖質、食物繊維、ビタミン、ミネラル、風味剤等が含まれている（添加されている）。
加えて、本発明のゲル状栄養組成物は、テトラパック、テーブルカップ、ポーションカップ、アルミパウチ、チアパック糖の容器に充填したゼリー、プリン等の形態である。
(Gel nutrition composition)
The gel nutrition composition of the present invention is a gel food for animals including humans to eat.
The basic composition of the composition is composed of a total milk protein, a gelling agent, and water, and preferably contains (added to) sugar, dietary fiber, vitamins, minerals, flavoring agents, and the like.
In addition, the gel-like nutrition composition of the present invention is in the form of jelly, pudding or the like filled in a container of tetrapack, table cup, portion cup, aluminum pouch, or thiapack sugar.
（アミノ酸スコア）
本発明のゲル状栄養組成物は、アミノ酸スコアが８０以上であることが好ましい。アミノ酸スコアとは、食品中の蛋白質当たりの必須アミノ酸量を、１９８５年にＦＡＯ／ＷＨＯ／ＵＮＵが合同で発表したアミノ酸パターンと比較し、最も不足するアミノ酸に関して、その割合を百分率で示した数値であり、すべてのアミノ酸を充足するものは１００とする数値である。なお、本発明ではアミノ酸パターンの年齢区分のうち、一般的に用いられる２〜５歳用を用いて計算している。アミノ酸スコアが低い食品の場合は、高蛋白質であってもその栄養価値は低い。蛋白質栄養補給食品であれば、最低でも８０以上、望ましくは９０以上、より望ましくは１００である。
(Amino acid score)
The gel nutrition composition of the present invention preferably has an amino acid score of 80 or more. The amino acid score is a numerical value that indicates the percentage of essential amino acids per protein in foods compared to the amino acid pattern jointly published by FAO / WHO / UNU in 1985, and the percentage of the most deficient amino acids. Yes, the value that satisfies all amino acids is 100. In the present invention, the calculation is performed using the generally used age groups of 2 to 5 years among the age categories of the amino acid pattern. In the case of a food with a low amino acid score, even if it is a high protein, its nutritional value is low. In the case of a protein nutritional supplement, the minimum is 80 or more, desirably 90 or more, and more desirably 100.
（蛋白質含量）
本発明のゲル状栄養組成物は、蛋白質含量が６〜２０質量％であり、好ましくは７〜２０質量％、より好ましくは８〜２０質量％、最も好ましくは９〜２０質量％である。蛋白質含量が、６質量％より少ない場合には、蛋白質補給食品としての価値が低いが、２０質量％より多い場合には、ゲルが固くなり、破断強度も高く、風味も悪く良好な物性を示さない。
(Protein content)
The gel nutrition composition of the present invention has a protein content of 6 to 20% by mass, preferably 7 to 20% by mass, more preferably 8 to 20% by mass, and most preferably 9 to 20% by mass. When the protein content is less than 6% by mass, the value as a protein supplement is low. However, when the protein content is more than 20% by mass, the gel becomes hard, the breaking strength is high, the flavor is poor, and good physical properties are exhibited. Absent.
（ゲルの破断強度）
本発明のゲル状栄養組成物の適切なゲルの破断強度は１８００〜１００００Ｎ／ｍ２である。ゲルの破断強度とは、硬さを示す指標であり、咀嚼しやすさや、吸い口付きパウチ容器からの吸い込みやすさを表す。ゲルの破断強度が、１８００Ｎ／ｍ２より小さいと実質上ゲルとしての保形性を有さない。また、１００００Ｎ／ｍ２より大きいと、咀嚼能力が低下した患者や高齢者にとって咀嚼しにくい硬さであり、また吸い口付きパウチ容器からも容易に吸い出せない。ゲルの破断強度は、好ましくは１９００〜６０００Ｎ／ｍ２であり、より好ましくは、２０００〜５５００Ｎ／ｍ２であり、最も好ましくは２１００〜５３００Ｎ／ｍ２である。
ゲルの破断強度の測定方法は、直径５〜７ｃｍ、高さ２５ｍｍの容器に充填し、２０℃で１２時間以上放置したゲルに、直径１．６ｃｍの円筒形プランジャーを、圧縮速度１．０ｍｍ／秒でゲル中に進入させ、その破断点の応力を測定する。
(Gel break strength)
A suitable gel breaking strength of the gel nutrition composition of the present invention is 1800-10000 N / m 2 . The breaking strength of the gel is an index indicating hardness, and represents the ease of chewing and the ease of suction from a pouch container with a mouthpiece. When the breaking strength of the gel is less than 1800 N / m 2 , the gel has substantially no shape retention. On the other hand, if it is greater than 10,000 N / m 2 , it is hard to chew for patients and elderly people who have reduced chewing ability, and it cannot be easily sucked out of a pouch container with a mouthpiece. The breaking strength of the gel is preferably 1900 to 6000 N / m 2 , more preferably 2000 to 5500 N / m 2 , and most preferably 2100 to 5300 N / m 2 .
The method for measuring the breaking strength of the gel is that a cylindrical plunger with a diameter of 1.6 cm is placed on a gel filled in a container having a diameter of 5 to 7 cm and a height of 25 mm and left at 20 ° C. for 12 hours or more, and a compression speed of 1.0 mm. Permeate into the gel at / second and measure the stress at the break.
（ゲルの破断距離）
本発明のゲルの破断距離とは、破断強度を測定する際にプランジャーがゲルと接しゲルの中に進入し始めた時点を０とし、破断点までの進入した距離を指す。
本発明のゲル状栄養組成物のゲルの破断距離は、３．０〜１０．０ｍｍであり、好ましくは３．５〜７．０ｍｍであり、最も好ましくは３．５〜６．０ｍｍである。
(Gel break distance)
The rupture distance of the gel of the present invention refers to the distance that the plunger entered when reaching the rupture point when the rupture strength was measured when the plunger contacted the gel and started to enter the gel.
The gel breaking distance of the gel nutrition composition of the present invention is 3.0 to 10.0 mm, preferably 3.5 to 7.0 mm, and most preferably 3.5 to 6.0 mm.
（ゲルの破断後の応力低下率）
本発明のゲルの破断後の応力低下率とは、破断強度を測定する際にプランジャーがゲル中に進入し、ゲルが破断したあとに応力の低下が見られ、再び増加する現象が見られるが、応力の破断点に対する低下分を百分率で示したものである。破断後に応力が０Ｎ／ｍ２まで低下した場合は１００％、全く低下しない場合は０％である。破断後の応力の低下率が大きいほどゲル形成が良好で、飲食時の食感が「プルン」として付着性が低く嚥下等に好ましく、食べたときの官能的な印象としても心地よい。低下率が小さいと飲食時の食感が「ベタ」っとして付着性が高く嚥下等に好ましくなく、食べたときの官能的な印象としても心地悪い。
本発明のゲル状栄養組成物のゲルの破断後の応力低下率は、１５％以上であり、好ましくは１８％以上であり、より好ましくは２０％以上であり、さらに好ましくは２５％以上であり、最も好ましくは３０％以上である。
(Stress reduction rate after gel rupture)
The stress reduction rate after breakage of the gel of the present invention means that when the break strength is measured, the plunger enters the gel, the stress is reduced after the gel is broken, and the phenomenon is increased again. Is a percentage of the decrease in stress relative to the breaking point. When the stress decreases to 0 N / m 2 after fracture, it is 100%, and when the stress does not decrease at all, it is 0%. The greater the rate of decrease in stress after rupture, the better the gel formation, and the texture during eating and drinking is “prune”, which is less adhesive and preferable for swallowing, etc. It is also comfortable as a sensual impression when eaten. When the rate of decrease is small, the texture during eating and drinking is “sticky” and the adhesiveness is high, which is undesirable for swallowing and the like, and it is uncomfortable as a sensual impression when eating.
The stress reduction rate after the gel breakage of the gel nutrition composition of the present invention is 15% or more, preferably 18% or more, more preferably 20% or more, and further preferably 25% or more. Most preferably, it is 30% or more.
（総合乳蛋白質とは）
総合乳蛋白質とは、ＴＭＰ（Ｔｏｔａｌ Ｍｉｌｋ Ｐｒｏｔｅｉｎ）、乳蛋白質濃縮物、ＭＰＣ（Ｍｉｌｋ Ｐｒｏｔｅｉｎ Ｃｏｎｃｅｎｔｒａｔｅ）、全乳蛋白質とも呼ばれる。一般に総合乳蛋白質の製造方法は、牛乳から遠心分離等により脱脂された脱脂乳から、濾過により乳糖やミネラル等の低分子成分を除いて得られる。総合乳蛋白質の主成分はカゼインとホエイ蛋白質である。脱脂乳に酸成分等を加えた際に、沈澱物として得られるカゼイン、その上澄みに含まれるホエイ蛋白質は商業的によく利用され栄養学的な価値も高い蛋白質成分であるが、総合乳蛋白質はカゼインとホエイ蛋白質を分ける工程がないため両方の成分を含む。総合乳蛋白質中におけるカゼインとホエイ蛋白質の比率は、脱脂乳中における比率と変わることなく、おおよそ８：２である。
総合乳蛋白質は、酸沈澱により分画されたカゼインとホエイ蛋白質を再び混合した蛋白質の混合物とは全く異なる性質を持つ。なぜなら、総合乳蛋白質は、牛乳中で認められるカゼインのミセル構造が維持されているからである。逆に酸沈澱により分画されたカゼインは、酸変性により既にミセル構造が破壊されており、ランダムな伸びた分子構造になっている。また、カゼインミセルは、その構造中に不溶なカルシウムを保持しているが、酸処理されるとカルシウムは溶出し、ホエイ蛋白質が存在する上澄みへ移行し、ホエイ蛋白質や乳糖等が取り除かれる際に、一緒に取り残されてしまう。よって、カゼインとホエイ蛋白質の混合物は、総合乳蛋白質と比較すると、カルシウム含有量と、その存在形態が全く異なる。
(What is comprehensive milk protein?)
The total milk protein is also called TMP (Total Milk Protein), milk protein concentrate, MPC (Milk Protein Concentrate), and whole milk protein. In general, a method for producing a total milk protein is obtained by removing low molecular components such as lactose and minerals by filtration from skim milk defatted from milk by centrifugation or the like. The main components of total milk protein are casein and whey protein. Casein obtained as a precipitate when skim milk is added with acid components, and whey protein contained in the supernatant are protein components that are often used commercially and have high nutritional value. Since there is no process for separating casein and whey protein, both components are included. The ratio of casein to whey protein in the total milk protein is approximately 8: 2 without changing from the ratio in skim milk.
The total milk protein has completely different properties from a protein mixture obtained by remixing casein and whey protein fractionated by acid precipitation. This is because the synthetic milk protein maintains the micellar structure of casein found in milk. Conversely, the casein fractionated by acid precipitation has a micelle structure already destroyed by acid modification and has a randomly elongated molecular structure. Casein micelles retain insoluble calcium in their structure, but when they are treated with acid, calcium elutes and moves to the supernatant where whey protein is present, and when whey protein or lactose is removed. , Will be left together. Therefore, the mixture of casein and whey protein is completely different in calcium content and form of existence as compared with the total milk protein.
（本発明に用いる総合乳蛋白質）
本発明に用いる総合乳蛋白質は、本発明のゲル状栄養組成物中において、カゼインとホエイ蛋白質の比率が、８３：１７〜１００：０であり、好ましくは８５：１５〜１００：０であり、より好ましくは８８：１２〜１００：０であり、さらに好ましくは９０：１０〜１００：０であり、最も好ましくは９２：８〜１００：０である。または、８３：１７〜９９．９：０．１であり、好ましくは８５：１５〜９９．９：０．１であり、より好ましくは８８：１２〜９９．９：０．１であり、さらに好ましくは９０：１０〜９９．９：０．１であり、最も好ましくは９２：８〜９９．９：０．１である。
なお、総合乳蛋白質中のカゼインとホエイ蛋白質の比率において、ホエイ蛋白質の比率が１７％以上であると、下記実施例の結果より、風味が悪く、外観の状態も悪く及び破断強度も適切ではない。
本発明に用いる総合乳蛋白質は、一般的な総合乳蛋白質と比較して粘度が低い。また、酸沈澱により分画されたカゼインと比較しても、圧倒的に粘度が低い。これは、本発明の総合乳蛋白質がミセル構造を維持しているためであり、分画されたカゼインがランダムな伸びた分子構造になり絡み合っているのとは大きく異なっている。
(Total milk protein used in the present invention)
The total milk protein used in the present invention has a ratio of casein to whey protein of 83:17 to 100: 0, preferably 85:15 to 100: 0, in the gel nutrition composition of the present invention. More preferably, it is 88: 12-100: 0, More preferably, it is 90: 10-100: 0, Most preferably, it is 92: 8-100: 0. Or 83:17 to 99.9: 0.1, preferably 85:15 to 99.9: 0.1, more preferably 88:12 to 99.9: 0.1, Preferably it is 90: 10-99.9: 0.1, Most preferably, it is 92: 8-99.9: 0.1.
In addition, in the ratio of casein and whey protein in the total milk protein, if the ratio of whey protein is 17% or more, the result of the following examples shows that the taste is bad, the appearance is bad, and the breaking strength is not appropriate. .
The total milk protein used in the present invention has a lower viscosity than a general total milk protein. In addition, the viscosity is overwhelmingly lower than that of casein fractionated by acid precipitation. This is because the total milk protein of the present invention maintains a micelle structure, which is very different from the case in which the fractionated casein has a randomly elongated molecular structure and is intertwined.
（本発明に用いる総合乳蛋白質の製造方法）
本発明に用いる総合乳蛋白質の製造方法は、好ましくは、脱脂乳から、限外濾過ではなく精密濾過により得られる。精密濾過膜の孔径は通常０．０５〜１０μｍであり（限外濾過膜の孔径は０．００１〜０．０１μｍ）、限外濾過では除かれない一部のホエイ蛋白質も精密濾過では取り除かれる。このため、精密濾過によって得られる総合乳蛋白質は、ホエイ蛋白質の割合が低減され、カゼインの割合が高められた総合乳蛋白質となる。
(Method for producing total milk protein used in the present invention)
The method for producing the total milk protein used in the present invention is preferably obtained from skim milk by microfiltration instead of ultrafiltration. The pore size of the microfiltration membrane is usually 0.05 to 10 μm (the pore size of the ultrafiltration membrane is 0.001 to 0.01 μm), and some whey proteins that are not removed by ultrafiltration are also removed by microfiltration. For this reason, the total milk protein obtained by microfiltration becomes a total milk protein in which the ratio of whey protein is reduced and the ratio of casein is increased.
（本発明のゲル状栄養組成物に用いる総合乳蛋白質）
一般にゼリーは、飲料等と比較して、流動性が悪く熱伝達性が低いため、熱殺菌を施す時間を長く取らなければならない。熱殺菌の時間が長くなれば、蛋白質の熱変性により分離凝集が進み、ゲル強度は硬くなり、風味も悪化する。
しかし、本発明のゲル状栄養組成物は、上記の長い熱殺菌時間を経ても、蛋白質の熱変性により分離凝集が進みにくく、ゲル強度は硬くならず、風味も悪化しないことを下記実施例で確認している。この理由は、以下のようなメカニズムで説明できると考える。
本発明に用いる総合乳蛋白質は、カゼインが小さくコンパクトにまとまったミセル構造を持つ。これにより、ゲル状栄養組成物に用いた場合、酸沈澱により得られたカゼイン（またはその塩であるカゼイネート）と比較して、ゲル化剤によるゲルネットワークの構造を阻害しにくく、柔らかくともしっかりしたまとまりのあるゲルとなり、このためにゲル強度が硬くならないと考えられる。
また、加熱臭成分の生成は、乳蛋白質のポリペプチド鎖中のジスルフィド結合の開裂に始まるラジカル反応機構によって起こることが知られている（特開平１０−２９５３４１、特開２００４−２０１６０１等）。上記の小さくコンパクトにまとまったカゼインのミセル構造が、加熱中のゲル化剤高分子の溶液中において、成分生成の機構を阻害する形で働いており、このために本発明のゲル状栄養組成物は風味が悪化しないと考えられる。
(Integrated milk protein used in the gel nutrition composition of the present invention)
In general, jelly has poor fluidity and low heat transfer compared to beverages and the like, so it must take a long time for heat sterilization. If the time for heat sterilization becomes longer, separation and aggregation proceed due to heat denaturation of the protein, the gel strength becomes harder, and the flavor deteriorates.
However, the gel nutrition composition of the present invention shows that separation and aggregation are difficult to proceed due to thermal denaturation of the protein even after the long heat sterilization time, the gel strength does not become hard, and the flavor does not deteriorate in the following examples. I have confirmed. The reason for this can be explained by the following mechanism.
The total milk protein used in the present invention has a small micellar structure with small casein. As a result, when used in a gel-like nutritional composition, compared to casein obtained by acid precipitation (or caseinate, which is a salt thereof), it is difficult to inhibit the structure of the gel network by the gelling agent, and it is soft and firm. It becomes a coherent gel, and it is considered that the gel strength does not become hard due to this.
In addition, it is known that the generation of a heated odor component is caused by a radical reaction mechanism starting from cleavage of a disulfide bond in a polypeptide chain of milk protein (Japanese Patent Laid-Open Nos. 10-295341, 2004-201601, etc.). The small and compact casein micelle structure works in a form that inhibits the mechanism of component generation in the solution of the gelling polymer during heating. For this reason, the gel-like nutritional composition of the present invention Is considered not to deteriorate the flavor.
（ゲル化剤）
本発明に用いるゲル化剤とは、水に溶解または分散して粘稠性を生じる高分子物質である増粘安定剤のうち、液体のものをゼリー状に固める作用のあるものをいう。具体的には、カラギーナン、寒天等の硫酸多糖類；キサンタンガム、ジェランガム、ペクチン等のカルボキシル多糖類；デンプン等のリン酸多糖類；ローカストビーンガム、ゼラチン等の種子多糖類が挙げられる。好ましくは硫酸多糖類、カルボキシル多糖類、さらに好ましくは寒天、ジェランガム、カラギーナン、最も好ましくは寒天、脱アシル型ジェランガム、κカラギーナンが挙げられる。
(Gelling agent)
The gelling agent used in the present invention refers to a thickening stabilizer that is a polymer substance that dissolves or disperses in water and produces a viscosity, and has a function of solidifying a liquid in a jelly form. Specific examples include sulfate polysaccharides such as carrageenan and agar; carboxyl polysaccharides such as xanthan gum, gellan gum, and pectin; phosphate polysaccharides such as starch; seed polysaccharides such as locust bean gum and gelatin. Preferred are sulfate polysaccharide, carboxyl polysaccharide, more preferably agar, gellan gum, carrageenan, most preferably agar, deacylated gellan gum, and kappa carrageenan.
（糖質）
本発明のゲル状栄養組成物で使用できる糖質は、特に限定されないが、例えば、ブドウ糖、果糖等の単糖類、蔗糖（上白糖、グラニュー糖）、乳糖、トレハロース等の二糖類、オリゴ糖、デキストリン、澱粉、異性化糖、還元水飴、還元デキストリン等を例示でき、好ましくは、蔗糖である。また甘味付けのため高甘味度甘味料を使用でき、使用できる高甘味度甘味料は、特に限定されないが、例えば、アセスルファムカリウム、アスパルテーム、スクラロース、ネオテーム、ステビア、サッカリン等やそれらの製剤を例示でき、好ましくは、スクラロースまたはその製剤である。
加えて、ゲル状栄養組成物に含まれる糖質の検出方法は、例えば、原材料表示等の情報と糖以外（水、蛋白質、脂質、食物繊維、ミネラル分）の含量分析を行い、差し引いて算出する「差し引きの糖質法」を利用できる。また、別の検出方法としては、糖質を直接検出する方法として、ガスクロマトグラフ法や高速液体クロマトグラフ法等も利用できる。例えば、ガスクロマトグラフ法では、キャリアーガスを窒素又はヘリウムとしてカラムによる分離を行ったのち、水素炎イオン化検出器で検出し、検出位置により分子種を特定し、ピーク面積から濃度を計算する方法を例示できる。また高速液体クロマトグラフ法では、移動相をアセトニトリル−水などとしてカラムによる分離を行ったのち、屈折率検出器で検出し、検出位置により分子種を特定し、ピーク面積から濃度を計算するなどの方法を例示できる。
(Sugar)
The saccharides that can be used in the gel nutrition composition of the present invention are not particularly limited, and examples thereof include monosaccharides such as glucose and fructose, disaccharides such as sucrose (super white sugar and granulated sugar), lactose and trehalose, oligosaccharides, Examples include dextrin, starch, isomerized sugar, reduced starch syrup, reduced dextrin, and preferably sucrose. In addition, a high-intensity sweetener can be used for sweetening, and the high-intensity sweetener that can be used is not particularly limited, and examples thereof include acesulfame potassium, aspartame, sucralose, neotame, stevia, saccharin, and the like, and preparations thereof. Preferably, it is sucralose or a preparation thereof.
In addition, the method for detecting carbohydrates contained in gel-like nutritional compositions is calculated by subtracting information such as information on raw materials and other substances (water, proteins, lipids, dietary fiber, minerals), etc. You can use the “subtracted carbohydrate method”. As another detection method, a gas chromatographic method, a high performance liquid chromatographic method, or the like can be used as a method for directly detecting a carbohydrate. For example, in the gas chromatographic method, the carrier gas is nitrogen or helium, separated by a column, then detected by a flame ionization detector, the molecular species is specified by the detection position, and the concentration is calculated from the peak area. it can. In high-performance liquid chromatography, the mobile phase is separated by column using acetonitrile-water, etc., then detected by a refractive index detector, the molecular species is specified by the detection position, and the concentration is calculated from the peak area. A method can be illustrated.
（風味剤）
本発明のゲル状栄養組成物で使用できる風味剤は、特に限定されないが、例えば、カスタードフレーバー、バニラフレーバー、ミルクフレーバー、プリンフレーバー、ヨーグルトフレーバー、バターフレーバー、アップルフレーバー、オレンジフレーバー、グレープフレーバー、バナナフレーバー、ピーチフレーバー、マンゴーフレーバー、メロンフレーバー、ストロベリーフレーバー、ブルーベリーフレーバー、パイナップルフレーバー、フルーツミックスフレーバー、コーヒーフレーバー、ココアフレーバー、チョコレートフレーバー、豆乳フレーバー等を例示でき、好ましくは、カスタードフレーバーである。
(Flavoring agent)
The flavoring agent that can be used in the gel nutrition composition of the present invention is not particularly limited. For example, custard flavor, vanilla flavor, milk flavor, pudding flavor, yogurt flavor, butter flavor, apple flavor, orange flavor, grape flavor, banana Examples include flavors, peach flavors, mango flavors, melon flavors, strawberry flavors, blueberry flavors, pineapple flavors, fruit mix flavors, coffee flavors, cocoa flavors, chocolate flavors, soy milk flavors, and preferably custard flavors.
（カルシウム含有量）
本発明のゲル状栄養組成物は、カルシウムを高含有することが好ましい。なぜなら、高齢者にとっては骨粗鬆症が広く一般的な問題として認識されているためであり、カルシウム摂取量と骨折発生率との関連を検討した疫学研究では有意な関連を認めている。
本発明のゲル状栄養組成物の「蛋白質１ｇ当たりのカルシウム含量（ｍｇ）」は、７〜２００ｍｇ、好ましくは１０〜１５０ｍｇ、より好ましくは２０〜１００ｍｇ、最も好ましくは２５〜８０ｍｇである。
カルシウムを始めとする二価の陽イオンは、蛋白質の凝集を促進する作用があり、蛋白質を高含有するゲルにおいては、凝集がザラツキとして感じられたり、蛋白質変性によりゲルが硬くなりすぎたりして、カルシウムを高濃度で含有させることは困難であった。しかし、本発明のゲル状栄養組成物は、蛋白質を高含有するゲルであるにもかかわらず、下記実施例の結果から明らかなように、優れた外観の状態（食感均一性）を示している。
(Calcium content)
The gel nutrition composition of the present invention preferably contains a high amount of calcium. This is because osteoporosis is widely recognized as a general problem for the elderly, and an epidemiological study examining the relationship between calcium intake and fracture incidence has found a significant relationship.
The “calcium content (mg) per gram of protein” of the gel nutrition composition of the present invention is 7 to 200 mg, preferably 10 to 150 mg, more preferably 20 to 100 mg, and most preferably 25 to 80 mg.
Divalent cations such as calcium have the effect of promoting protein aggregation, and in gels containing a high amount of protein, the aggregation may be felt as rough, or the protein may become too hard due to protein denaturation. It was difficult to contain calcium at a high concentration. However, although the gel-like nutrition composition of the present invention is a gel containing a high amount of protein, as shown in the results of the following examples, the gel-like nutritional composition exhibits an excellent appearance (texture uniformity). Yes.
（他の成分）
本発明のゲル状栄養組成物に使用するその他の原材料は、本発明の目的から逸脱しなければ、特には限定されず一般に食用として利用されているものを使用できる。
脂質としては、例えば、ナタネ油、大豆油、コーン油、ヤシ油、パーム油、パーム核油、ヒマワリ油、オリーブ油、米油、シソ油等の植物性油脂、牛脂、豚脂、乳脂、魚油等の動物性油脂、中鎖脂肪油が使用できる。
食物繊維としては、例えば、難消化性デキストリン、サイクロデキストリン等の水溶性食物繊維や、微結晶セルロース等の不溶性食物繊維等が挙げられる。
ミネラルとしては、例えば、ナトリウム、カリウム、カルシウム、マグネシウム、リン、クロム、モリブデン、マンガン、鉄、銅、亜鉛、セレン、ヨウ素、硫黄、塩素等が挙げられ、その原料としては、水酸化物、塩化物、硫酸塩、炭酸塩、リン酸塩、縮合リン酸塩、クエン酸塩、乳酸塩、酢酸塩、コハク酸塩、酒石酸塩、グルコン酸塩、カゼイネート等が使用できる。また蛋白質に含まれるミネラル、酵母に含まれるミネラル、その他のミネラル等も使用できる。
ビタミンとしては、例えば、ビタミンＡ、ビタミンＢ群、ビタミンＣ、ビタミンＤ、ビタミンＥ、ビタミンＫ、パントテン酸、葉酸、ナイアシン、ビオチン等が挙げられる。
乳化剤としては、食用として使用されるものであればいずれでも構わない。例えば、モノグリセライド、ポリグリセライド、レシチン、リゾレシチン、高純度レシチン、有機酸モノグリセライド、ソルビタン脂肪酸エステル、ショ糖脂肪酸エステル等が挙げられる。
また、必要により、香料、着色剤、果汁等を加えても良い。
(Other ingredients)
Other raw materials used in the gel nutrition composition of the present invention are not particularly limited, and those generally used for food can be used without departing from the object of the present invention.
Examples of lipids include vegetable oils such as rapeseed oil, soybean oil, corn oil, palm oil, palm oil, palm kernel oil, sunflower oil, olive oil, rice oil, perilla oil, beef fat, pork fat, milk fat, fish oil, etc. Animal fats and oils of middle chain can be used.
Examples of dietary fiber include water-soluble dietary fiber such as indigestible dextrin and cyclodextrin, and insoluble dietary fiber such as microcrystalline cellulose.
Examples of the mineral include sodium, potassium, calcium, magnesium, phosphorus, chromium, molybdenum, manganese, iron, copper, zinc, selenium, iodine, sulfur, chlorine, and the raw materials include hydroxide, chloride. Products, sulfate, carbonate, phosphate, condensed phosphate, citrate, lactate, acetate, succinate, tartrate, gluconate, caseinate and the like can be used. Moreover, the mineral contained in protein, the mineral contained in yeast, other minerals, etc. can be used.
Examples of vitamins include vitamin A, vitamin B group, vitamin C, vitamin D, vitamin E, vitamin K, pantothenic acid, folic acid, niacin, biotin and the like.
Any emulsifier may be used as long as it is used for food. Examples thereof include monoglyceride, polyglyceride, lecithin, lysolecithin, high-purity lecithin, organic acid monoglyceride, sorbitan fatty acid ester, sucrose fatty acid ester and the like.
Moreover, you may add a fragrance | flavor, a coloring agent, fruit juice, etc. as needed.
（ｐＨ）
本発明のゲル状栄養組成物のｐＨは５〜９であり、好ましくは５〜８であり、最も好ましくは約６である。ｐＨが５より低い場合は総合乳蛋白質が酸沈澱してしまい本発明の効果を発揮しにくい。またｐＨが９より高い場合は食品として適さない。
(PH)
The pH of the gel nutrition composition of the present invention is 5-9, preferably 5-8, and most preferably about 6. When the pH is lower than 5, the total milk protein is acid-precipitated and it is difficult to exert the effect of the present invention. Moreover, when pH is higher than 9, it is not suitable as a foodstuff.
（ゲル状栄養組成物の製造方法）
本発明のゲル状栄養組成物の製造方法は、本発明の目的から逸脱しなければ、特には限定されず一般な方法を使用できる。
例えば、各種原料を水に投入し、プロペラ撹拌しながら加温し充分に溶解させる。ゲル化剤の溶解温度と蛋白質の変性温度を考慮し、ゲル化剤を６０℃以上、好ましくは７５℃以上、最も好ましくは９０℃以上の条件で溶解した後に、７０℃以下まで冷却し蛋白質原料を溶解すると良い。最終的に水分調整し、可能であれば均質化を行った方が蛋白質成分の均質性から好ましい。均質化のための機械、条件は特に限定されないが、例えば、高圧ホモジナイザーを用いて、３〜７５ＭＰａで均質化する。好ましくは１０ＭＰａ以上、より好ましくは３０ＭＰａ以上で、処理回数は２回以上が好ましい。また、菌による腐敗を避けるための加熱滅菌処理を行う必要がある。加熱滅菌の方法は、通常２つの方法が行われる。１つは調合液を短時間で加熱滅菌した後に、無菌的に密封可能容器に充填するＵＨＴ・無菌充填法であり、もう１つは、密封可能容器に充填した後に長時間加熱滅菌するレトルト法であり、そのいずれでも構わない。
一般的にはレトルト殺菌で製造されるが、レトルト法は長時間加熱されるため、熱によるゲル状栄養組成物へのダメージが過酷であり、風味の悪化や分離や凝集が起きたりゲルが硬くなったりしやすい。しかし、本発明のゲル状栄養組成物は、レトルト法によっても、良質な蛋白質を高濃度で含み、適切なゲルの破断強度であり、かつ風味が良好なゲル状栄養組成物を得ることができる。
また、レトルト法は、ＵＨＴ・無菌充填法とは異なり、滅菌後に均質化処理を行うことができないため、凝集物や沈殿物を再分散できず、レトルト法の方が良好な品質を保つために高度な技術が求められる。レトルト滅菌条件は、滅菌されうる条件ならいずれでも構わないが、一般的に１１０〜１３０℃で１分〜２時間である。本発明の効果を発揮し易いレトルト滅菌条件は、１１０〜１２０℃で１５分〜２時間であり、さらに発揮し易い条件は、１１０〜１１５℃で３０分〜１時間である。また、加熱による局所的な変質や焦げを抑制するため、回転または揺動または摺動させながら滅菌することが望まれる。
(Method for producing gel-like nutritional composition)
The method for producing the gel nutrition composition of the present invention is not particularly limited as long as it does not depart from the object of the present invention, and a general method can be used.
For example, various raw materials are put into water, heated with propeller stirring, and sufficiently dissolved. Considering the dissolution temperature of the gelling agent and the denaturation temperature of the protein, the gelling agent is dissolved at a temperature of 60 ° C. or higher, preferably 75 ° C. or higher, most preferably 90 ° C. or higher, and then cooled to 70 ° C. or lower. It is better to dissolve. It is preferable from the homogeneity of the protein component that the moisture is finally adjusted and homogenized if possible. Although the machine and conditions for homogenization are not particularly limited, for example, homogenization is performed at 3 to 75 MPa using a high-pressure homogenizer. It is preferably 10 MPa or more, more preferably 30 MPa or more, and the number of treatments is preferably 2 or more. Moreover, it is necessary to perform a heat sterilization treatment to avoid spoilage due to bacteria. There are usually two methods of heat sterilization. One is the UHT / aseptic filling method, in which the liquid mixture is sterilized by heating in a short time and then aseptically filled into a sealable container, and the other is a retort method in which heat-sterilization is performed for a long time after filling the sealable container. Any of them may be used.
Generally, it is manufactured by retort sterilization. However, since the retort method is heated for a long time, the damage to the gel-like nutritional composition due to heat is severe, and flavor deterioration, separation and aggregation occur, and the gel is hard. It is easy to become. However, the gel-like nutritional composition of the present invention can provide a gel-like nutritional composition that contains a high-quality protein at a high concentration, has an appropriate gel breaking strength, and has a good flavor even by the retort method. .
In addition, unlike the UHT / aseptic filling method, the retort method cannot be homogenized after sterilization, so that aggregates and precipitates cannot be redispersed, and the retort method has better quality. Advanced technology is required. The retort sterilization condition may be any condition as long as it can be sterilized, but is generally 110 to 130 ° C. for 1 minute to 2 hours. Retort sterilization conditions that easily exert the effect of the present invention are 110 minutes to 120 ° C. for 15 minutes to 2 hours, and conditions that are more easily exhibited are 110 to 115 ° C. for 30 minutes to 1 hour. Further, in order to suppress local alteration and scorching due to heating, it is desired to sterilize while rotating, swinging or sliding.
以下に具体例を挙げて本発明を詳細に説明するが、本発明はこれらの例に限定されない。 Hereinafter, the present invention will be described in detail with specific examples, but the present invention is not limited to these examples.
本発明を具体例に基づいてさらに詳細に説明する。 The present invention will be described in more detail based on specific examples.
（蛋白質含有量の測定）
本発明の蛋白質含有量の測定は、ケルダール法を用いて窒素量を測定し、窒素−蛋白質換算係数を６．２５として算出して行った。
(Measurement of protein content)
The protein content of the present invention was measured by measuring the amount of nitrogen using the Kjeldahl method and calculating the nitrogen-protein conversion coefficient as 6.25.
（カルシウム含有量の測定）
本発明のカルシウム含有量の測定は、原子吸光光度法もしくは誘導結合プラズマ発光分析法により算出して行った。
(Measurement of calcium content)
The measurement of the calcium content of the present invention was performed by calculation by atomic absorption spectrophotometry or inductively coupled plasma emission spectrometry.
（アミノ酸スコアの測定）
本発明でのアミノ酸スコアの測定は、トリプトファンは高速液体クロマトグラフ法を用い、その他のアミノ酸はアミノ酸自動分析法を用いて、すべてのアミノ酸含量を測定し、アミノ酸スコアを算出した。
(Measurement of amino acid score)
In the measurement of the amino acid score in the present invention, the amino acid score was calculated by measuring the content of all amino acids using tryptophan using a high performance liquid chromatographic method and using the amino acid automatic analysis method for other amino acids.
（風味の評価）
本発明の風味の評価方法は、５名（年齢２５〜６０才の男性３名、女性２名）のパネルにより試料のゲルの試食を実施し、風味を官能的に評価した。
記号；評価基準
○；蛋白質特有の腐敗臭や苦味がなく良好と５名全員が評価した
△；蛋白質特有の腐敗臭や苦味がなく良好と１〜４名が評価した
×；蛋白質特有の腐敗臭や苦味がなく良好と評価した人がいなかった
(Evaluation of flavor)
In the flavor evaluation method of the present invention, the sample gel was sampled by a panel of 5 persons (3 males and 25 females aged 25 to 60 years old), and the flavor was evaluated sensorily.
Symbol: Evaluation criteria ○; No rot or bitterness peculiar to protein and good by 5 people △; 1 to 4 people evaluated good without odor and bitterness peculiar to protein ×; Nobody evaluated it as good with no bitterness
（外観の状態及び食感均一性の評価）
外観の状態及び食感均一性の評価は、以下を基準として評価した。
記号；評価基準
○；分離や凝集が無く均一な状態である
△；分離または凝集があるが、その程度はわずかであり飲食可能
×；分離または凝集があり、飲食に適さない
(Evaluation of appearance and texture uniformity)
The appearance state and texture uniformity were evaluated based on the following.
Symbol: Evaluation criteria ○: There is no separation or aggregation and it is in a uniform state. Δ: There is separation or aggregation, but the degree is slight and can be eaten. ×: There is separation or aggregation and is not suitable for eating and drinking.
（破断強度）
本発明のゲルの破断強度の測定方法は、直径５〜７ｃｍ、高さ２５ｍｍの容器に充填し、２０℃で１２時間以上放置したゲルに、直径１．６ｃｍの円筒形プランジャーを圧縮速度１．０ｍｍ／秒でゲル中に進入させ、その破断点の応力を測定した。試験は１試料につき４回行い、その平均値で示した。測定値は荷重応力（ｇ）として得られ、それを単位Ｎ／ｍ２に換算したものを評価に用いた。測定に使用した機器はＹＡＭＡＤＥＮ ＲＨＥＯＮＥＲ ＲＥ−３３０５（株式会社山電社製）である。
(Breaking strength)
The method for measuring the breaking strength of the gel according to the present invention is as follows. A cylindrical plunger having a diameter of 1.6 cm is placed on a gel filled in a container having a diameter of 5 to 7 cm and a height of 25 mm and left at 20 ° C. for 12 hours or more. The gel was allowed to enter the gel at 0.0 mm / second, and the stress at the breaking point was measured. The test was performed 4 times per sample, and the average value was shown. The measured value was obtained as a load stress (g), and the value converted into the unit N / m 2 was used for evaluation. The instrument used for the measurement is YAMADEN RHEONER RE-3305 (manufactured by Yamaden Co., Ltd.).
（ゲルの破断距離）
本発明のゲルの破断強度の測定方法は、直径５〜７ｃｍ、高さ２５ｍｍの容器に充填し、２０℃で１２時間以上放置したゲルに、直径１．６ｃｍの円筒形プランジャーを圧縮速度１．０ｍｍ／秒でゲル中に進入させ、その破断するまでの進入距離を測定した。試験は１試料につき４回行い、その平均値で示した。測定に使用した機器はＹＡＭＡＤＥＮ ＲＨＥＯＮＥＲ ＲＥ−３３０５（株式会社山電社製）である。
(Gel break distance)
The method for measuring the breaking strength of the gel according to the present invention is as follows. A cylindrical plunger having a diameter of 1.6 cm is placed on a gel filled in a container having a diameter of 5 to 7 cm and a height of 25 mm and left at 20 ° C. for 12 hours or more. The gel was allowed to enter the gel at a rate of 0.0 mm / second, and the approach distance until it broke was measured. The test was performed 4 times per sample, and the average value was shown. The instrument used for the measurement is YAMADEN RHEONER RE-3305 (manufactured by Yamaden Co., Ltd.).
（破断後の応力低下率）
本発明の破断後の応力低下率の測定方法は、直径５〜７ｃｍ、高さ２５ｍｍの容器に充填し、２０℃で１２時間以上放置したゲルに、直径１．６ｃｍの円筒形プランジャーを圧縮速度１．０ｍｍ／秒でゲル中に進入させ、その破断点の応力に対する、破断後の応力の低下率（％）を測定した。試験は１試料につき４回行い、その平均値で示した。
(Stress reduction rate after fracture)
The method for measuring the rate of reduction in stress after fracture according to the present invention is that a cylindrical plunger having a diameter of 1.6 cm is compressed into a gel filled in a container having a diameter of 5 to 7 cm and a height of 25 mm and left at 20 ° C. for 12 hours or more. The gel was allowed to enter the gel at a speed of 1.0 mm / sec, and the reduction rate (%) of the stress after fracture relative to the stress at the fracture point was measured. The test was performed 4 times per sample, and the average value was shown.
（原材料）
実施例及び比較例に用いた原材料の詳細を次に示す。
ＭＣＩ：総合乳蛋白質（カゼイン：ホエイ＝９０：１０）
「ミルカＭＣＩ８０」｛日本新薬（株）製｝
ＭＣＩ：総合乳蛋白質（カゼイン：ホエイ＝９２：８）
「ＰＲＯＤＩＥＴ８５Ｂ」｛サンブライト（株）製｝
ＭＰＣ：総合乳蛋白質（カゼイン：ホエイ＝８０：２０）
「ＭＰＣ８０」｛ＤＭＶジャパン（株）製｝
カゼインＮａ：「インスタンラックＳ」｛中央商工（株）製、商品名｝
分離大豆蛋白質：「ＳＵＰＲＯ７１０」｛デュポン株式会社（株）ソレイ事業部製｝
乳ホエイ蛋白質：「ラクプロダン８０」｛アーラ・フーズ・イングレディエンツ・ジャパン（株）製、商品名｝
上白糖：「精製上白糖ＥＳ」｛塩水港精糖（株）製｝
スクラロース製剤「サンスイートＳＵ−２００」｛三栄源エフエフアイ（株）製｝
寒天：「伊那寒天Ｍ−８」｛伊那食品工業（株）製｝
脱アシル型ジェランガム：「ケルコゲル」｛三栄源エフエフアイ（株）製｝
κカラギーナン：「カラギニンＣＳＫ−１」｛三栄源エフエフアイ（株）製｝
香料製剤：「カスタードフレーバー」｛小川香料（株）製｝
(raw materials)
Details of the raw materials used in Examples and Comparative Examples are shown below.
MCI: Total milk protein (Casein: Whey = 90: 10)
“Milka MCI80” {manufactured by Nippon Shinyaku Co., Ltd.}
MCI: Total milk protein (Casein: Whey = 92: 8)
"PRODIET85B" {manufactured by Sunbright Co., Ltd.}
MPC: Total milk protein (Casein: Whey = 80: 20)
“MPC80” {manufactured by DMV Japan Ltd.}
Casein Na: “Instan Lack S” {product name, manufactured by Chuo Shoko Co., Ltd.}
Isolated soy protein: “SUPRO710” {manufactured by DuPont Co., Ltd. Solei Division}
Milk whey protein: "Lacprodan 80" {Ara Foods Ingredients Japan Co., Ltd., trade name}
Super white sugar: “Purified super white sugar ES” {manufactured by Shimizu Minato Sugar Co., Ltd.}
Sucralose preparation “Sunsweet SU-200” {manufactured by Saneigen FFI Co., Ltd.}
Agar: "Inagar M-8" {manufactured by Ina Food Industry Co., Ltd.}
Deacylated gellan gum: “Kelcogel” {manufactured by Saneigen FFI Co., Ltd.}
κ Carrageenan: “Carrageenin CSK-1” {manufactured by Saneigen FFI Co., Ltd.}
Fragrance preparation: “Custard flavor” {made by Ogawa Fragrance Co., Ltd.}
（実施例１）
本発明のゲル状栄養組成物の代表例である実施例１のゲル状栄養組成物の製造方法は以下の通りである。
寒天０．４質量％を、水８０質量％に分散させたあと、９５℃以上まで加熱することで該寒天を溶解させ、６０℃まで降温させた。精密濾過により脱脂乳からホエイ蛋白質の一部が除去されてできる総合乳蛋白質ＭＣＩ（カゼイン：ホエイ＝９０：１０）９．２１質量％及び上白糖６．７５質量％を、ゆっくりと、溶解させた寒天液に投入し、充分に攪拌溶解させ、さらに、カスタードフレーバー０．１質量％を加えた。最後に、温水で全量を１００質量％に補水し、全量を２０００ｇとした。この液を、直径５〜７ｃｍ、高さ２５ｍｍの容器に充填密封し、１１５℃３０分間のレトルト殺菌（加熱後１５分間冷却）を行った（参照：表１の配合表）。
Example 1
The manufacturing method of the gel nutrition composition of Example 1 which is a representative example of the gel nutrition composition of this invention is as follows.
After 0.4% by mass of agar was dispersed in 80% by mass of water, the agar was dissolved by heating to 95 ° C. or higher, and the temperature was lowered to 60 ° C. A total milk protein MCI (casein: whey = 90: 10) of 9.21% by mass and 6.75% by weight of sucrose dissolved by removing a part of whey protein from skim milk by microfiltration was slowly dissolved. The solution was put into an agar solution and sufficiently dissolved by stirring, and 0.1% by mass of custard flavor was further added. Finally, the whole amount was replenished to 100% by mass with warm water to make the total amount 2000 g. This liquid was filled and sealed in a container having a diameter of 5 to 7 cm and a height of 25 mm, and retort sterilization (cooled for 15 minutes after heating) at 115 ° C. for 30 minutes (see: Formulation Table in Table 1).
（実施例１の評価）
実施例１の評価の結果を表１に示す。
蛋白質含量は７質量％であり、アミノ酸スコアは１００である。また、風味は５名全員が良好（○）と評価し、状態（外観）も分離や凝集が無く均一な状態（○）であった。ゲルの破断強度は、２１５１Ｎ／ｍ２であり、破断後の応力低下率も２０％と嚥下性が良好な飲食に適した物性であった。
(Evaluation of Example 1)
The evaluation results of Example 1 are shown in Table 1.
The protein content is 7% by mass and the amino acid score is 100. In addition, all five people evaluated the flavor as good (◯), and the state (appearance) was uniform (◯) without separation or aggregation. The breaking strength of the gel was 2151 N / m 2 , and the stress reduction rate after breaking was 20%, which was a physical property suitable for eating and drinking with good swallowability.
（実施例２の製造及び評価）
表１に記載の配合量に従い、実施例１と同様の製造方法により、実施例２のゲル状栄養組成物を製造した。
実施例２の評価の結果を表１に示す。
蛋白質含量は９質量％であり、アミノ酸スコアは１００である。また、風味は５名全員が良好（○）と評価し、状態（外観）も分離や凝集が無く均一な状態（○）であった。ゲルの破断強度は３４５０Ｎ／ｍ２であり、破断後の応力低下率も２５％と嚥下性が良好な飲食に適した物性であった。よって、総合乳蛋白質の量を変えても良好な栄養組成物が得られた。
(Production and evaluation of Example 2)
According to the blending amounts shown in Table 1, the gel nutritional composition of Example 2 was produced by the same production method as in Example 1.
The evaluation results of Example 2 are shown in Table 1.
The protein content is 9% by mass and the amino acid score is 100. In addition, all five people evaluated the flavor as good (◯), and the state (appearance) was uniform (◯) without separation or aggregation. The breaking strength of the gel was 3450 N / m 2 , and the stress reduction rate after breaking was 25%, which is a physical property suitable for eating and drinking with good swallowability. Therefore, a good nutritional composition was obtained even if the amount of the total milk protein was changed.
（実施例３の製造及び評価）
表１に記載の配合量に従い、実施例１と同様の製造方法により、実施例３のゲル状栄養組成物を製造した。なお、実施例１とは異なり、上白糖ではなく、スクラロース製剤を使用した。
実施例３の評価の結果を表１に示す。
蛋白質含量は１２質量％であり、アミノ酸スコアは１００である。また風味は５名中５名が良好（○）と評価し、状態（外観）も分離や凝集が無く均一な状態（○）であった。ゲルの破断強度は５１９９Ｎ／ｍ２であり、破断後の応力低下率も２０％と嚥下性が良好な飲食に適した物性であった。よって、総合乳蛋白質の量及び糖類の種類を変えても良好な栄養組成物が得られた。
(Production and evaluation of Example 3)
According to the blending amounts shown in Table 1, the gel-like nutritional composition of Example 3 was produced by the same production method as in Example 1. Unlike Example 1, sucralose preparation was used instead of super white sugar.
The evaluation results of Example 3 are shown in Table 1.
The protein content is 12% by mass and the amino acid score is 100. The taste was evaluated as good (◯) by 5 out of 5 people, and the state (appearance) was uniform (◯) without separation or aggregation. The breaking strength of the gel was 5199 N / m 2 , and the stress reduction rate after breaking was 20%, which is a physical property suitable for eating and drinking with good swallowability. Therefore, a good nutritional composition was obtained even if the amount of the total milk protein and the type of saccharide were changed.
（実施例４の製造及び評価）
表１に記載の配合量に従い、実施例２と同様の製造方法により、実施例４のゲル状栄養組成物を製造した。なお、実施例２とは異なり、寒天ではなく、脱アシル型ジェランガムを使用した。
実施例４の評価の結果を表１に示す。
蛋白質含量は９質量％であり、アミノ酸スコアは１００である。また風味は５名全員が良好（○）と評価し、状態（外観）も分離や凝集が無く均一な状態（○）であった。ゲルの破断強度は４０４７Ｎ／ｍ２であり、破断後の応力低下率も４０％と嚥下性が良好な飲食に適した物性であった。よって、総合乳蛋白質の量及びゲル化剤の種類を変えても良好な栄養組成物が得られた。
(Production and evaluation of Example 4)
According to the blending amounts shown in Table 1, the gel nutrition composition of Example 4 was produced by the same production method as in Example 2. Unlike Example 2, deacylated gellan gum was used instead of agar.
The evaluation results of Example 4 are shown in Table 1.
The protein content is 9% by mass and the amino acid score is 100. In addition, all five persons evaluated that the flavor was good (◯), and the state (appearance) was uniform (◯) without separation or aggregation. The breaking strength of the gel was 4047 N / m 2 , and the stress reduction rate after breaking was 40%, which is a physical property suitable for eating and drinking with good swallowability. Therefore, a good nutritional composition was obtained even when the amount of the total milk protein and the kind of the gelling agent were changed.
（実施例５の製造及び評価）
表１に記載の配合量に従い、実施例１と同様の製造方法により、実施例５のゲル状栄養組成物を製造した。なお、実施例１とは異なり、寒天ではなく、κカラギーナンを使用した。
実施例５の評価の結果を表１に示す。
蛋白質含量は７質量％であり、アミノ酸スコアは１００である。また、風味は５名全員が良好（○）と評価し、状態（外観）も分離や凝集が無く均一な状態（○）であった。ゲルの破断強度は３４５０Ｎ／ｍ２であり、破断後の応力低下率も３０％と嚥下性が良好な飲食に適した物性であった。よって、ゲル化剤の種類を変えても良好な栄養組成物が得られた。
(Production and evaluation of Example 5)
According to the blending amounts shown in Table 1, the gel-like nutritional composition of Example 5 was produced by the same production method as in Example 1. Unlike Example 1, κ carrageenan was used instead of agar.
The evaluation results of Example 5 are shown in Table 1.
The protein content is 7% by mass and the amino acid score is 100. In addition, all five people evaluated the flavor as good (◯), and the state (appearance) was uniform (◯) without separation or aggregation. The breaking strength of the gel was 3450 N / m 2 , and the stress reduction rate after breaking was 30%, which is a physical property suitable for eating and drinking with good swallowability. Therefore, a good nutritional composition was obtained even if the kind of the gelling agent was changed.
（実施例６の製造及び評価）
表１に記載の配合量に従い、実施例２と同様の製造方法により、実施例６のゲル状栄養組成物を製造した。なお、実施例２とは異なり、総合乳蛋白質中のカゼインとホエイ蛋白質の比率を９０：１０ではなく、９２：８とした。
実施例６の評価の結果を表１に示す。
蛋白質含量は９質量％であり、アミノ酸スコアは１００である。また、風味は５名全員が良好（○）と評価し、状態（外観）も分離や凝集が無く均一な状態（○）であった。ゲルの破断強度は３３３２Ｎ／ｍ２であり、破断後の応力低下率も２９％と嚥下性が良好な飲食に適した物性であった。よって、総合乳蛋白質中のカゼインとホエイ蛋白質の比率を９０：１０から９２：８に変えても良好な栄養組成物が得られた。
(Production and evaluation of Example 6)
According to the blending amounts shown in Table 1, the gel nutrition composition of Example 6 was produced by the same production method as in Example 2. Unlike Example 2, the ratio of casein to whey protein in the total milk protein was not 90:10 but 92: 8.
The evaluation results of Example 6 are shown in Table 1.
The protein content is 9% by mass and the amino acid score is 100. In addition, all five people evaluated the flavor as good (◯), and the state (appearance) was uniform (◯) without separation or aggregation. The breaking strength of the gel was 3332 N / m 2 , and the stress reduction rate after breaking was 29%, which was a physical property suitable for eating and drinking with good swallowability. Therefore, even if the ratio of casein and whey protein in the total milk protein was changed from 90:10 to 92: 8, a good nutritional composition was obtained.
（比較例１の製造及び評価）
表１に記載の配合量に従い、実施例１と同様の製造方法により、比較例１のゲル状栄養組成物を製造した。なお、実施例１とは異なり、総合乳蛋白質中のカゼインとホエイ蛋白質の比率を９０：１０ではなく、８０：２０（脱脂乳から乳糖やミネラルが限外濾過により除去されるが、ホエイ蛋白質は保持されたままのＭＰＣ）とした。
比較例１の評価の結果を表１に示す。
蛋白質特有の腐敗臭や苦味がなく良好と１〜４名が評価（△）し、状態（外観）も分離や凝集があり、飲食に適さない状態（×）であった。さらに、ゲルの破断強度は１３３４１Ｎ／ｍ２であり、非常に硬く飲食に適さない物性であった。
(Production and evaluation of Comparative Example 1)
According to the blending amounts shown in Table 1, the gel nutrition composition of Comparative Example 1 was produced by the same production method as in Example 1. Unlike Example 1, the ratio of casein to whey protein in the total milk protein was not 90:10, but 80:20 (lactose and minerals were removed from skim milk by ultrafiltration. MPC as retained).
The evaluation results of Comparative Example 1 are shown in Table 1.
1 to 4 persons evaluated (△) that there was no spoilage smell and bitterness peculiar to proteins, and the state (appearance) was separated and agglomerated, and was in a state unsuitable for eating and drinking (x). Furthermore, the breaking strength of the gel was 13341 N / m 2 and was very hard and unsuitable for eating and drinking.
（比較例２の製造及び評価）
表１に記載の配合量に従い、実施例１と同様の製造方法により、比較例２の栄養組成物を製造した。なお、実施例１とは異なり、総合乳蛋白質ではなく、ガゼインＮａ（酸沈澱により分画されたカゼインを、炭酸Ｎａや水酸化Ｎａで中和して得られたもの）を使用した。
比較例２の評価の結果を表１に示す。
蛋白質特有の腐敗臭や苦味がなく良好と１〜４名が評価（△）し、ゲル化しなかった。さらに、蛋白質１ｇ当たりのカルシウム含量（ｍｇ）は０であった。ゲル化せず、飲食に適さない物性であった。
(Production and evaluation of Comparative Example 2)
According to the blending amounts shown in Table 1, the nutritional composition of Comparative Example 2 was produced by the same production method as in Example 1. Unlike Example 1, not casei milk protein but casein Na (obtained by neutralizing casein fractionated by acid precipitation with sodium carbonate or sodium hydroxide) was used.
The results of evaluation of Comparative Example 2 are shown in Table 1.
One to four people evaluated it as good (no rot and bitterness peculiar to protein) and did not gel. Furthermore, the calcium content (mg) per gram of protein was 0. It did not gel and was a physical property unsuitable for eating and drinking.
（比較例３の製造及び評価）
表１に記載の配合量に従い、実施例５と同様の製造方法により、比較例３のゲル状栄養組成物を製造した。なお、実施例５とは異なり、総合乳蛋白質ではなく、分離大豆蛋白質を使用した。
比較例３の評価の結果を表１に示す。
蛋白質特有の腐敗臭や苦味がなく良好と評価した人がいなかった（×）、状態（外観）も分離や凝集があり、飲食に適さない状態（×）であった。さらに、ゲルの破断強度は１２９９Ｎ／ｍ２であり、ゲル状としては柔らかく飲食に適さない物性であった。加えて、蛋白質１ｇ当たりのカルシウム含量（ｍｇ）が非常に低かった。
(Production and Evaluation of Comparative Example 3)
According to the blending amounts shown in Table 1, the gel nutrition composition of Comparative Example 3 was produced by the same production method as in Example 5. Unlike Example 5, isolated soybean protein was used instead of total milk protein.
The evaluation results of Comparative Example 3 are shown in Table 1.
There was no person who evaluated that it was good without the spoilage smell and bitterness peculiar to protein (x), and the state (appearance) was separated and aggregated, and was in a state unsuitable for eating and drinking (x). Further, the breaking strength of the gel is 1299N / m 2, was physical property unsuitable for soft food is gelled. In addition, the calcium content (mg) per gram of protein was very low.
（比較例４、５及び６の製造及び評価）
表１に記載の配合量に従い、実施例１と同様の製造方法により、比較例４のゲル状栄養組成物を製造した。なお、実施例１とは異なり、総合乳蛋白質ではなく、乳ホエイ蛋白質を使用した。なお、比較例５は、比較例４とは異なり、寒天ではなく、脱アシル型ジェランガムを使用した。また、比較例６は、比較例４とは異なり、寒天ではなく、κカラギーナンを使用した。
比較例４、５及び６の評価の結果を表１に示す。
比較例４、５及び６のいずれもが、蛋白質特有の腐敗臭や苦味がなく良好と評価した人がいなかった（×）。さらに、ゲルの破断強度が過剰であり硬すぎ、飲食に適さない物性であった。加えて、ゲル化剤は、物性に影響を与えないことを確認した。
(Production and evaluation of Comparative Examples 4, 5 and 6)
According to the blending amounts shown in Table 1, the gel nutrition composition of Comparative Example 4 was produced by the same production method as in Example 1. Unlike Example 1, milk whey protein was used instead of total milk protein. In Comparative Example 5, unlike Comparative Example 4, deacylated gellan gum was used instead of agar. Further, unlike Comparative Example 4, Comparative Example 6 used κ carrageenan instead of agar.
The evaluation results of Comparative Examples 4, 5, and 6 are shown in Table 1.
None of Comparative Examples 4, 5, and 6 had a person who evaluated it as good because there was no spoilage odor or bitterness peculiar to proteins (×). Furthermore, the breaking strength of the gel was excessive and too hard, and the physical properties were not suitable for eating and drinking. In addition, it was confirmed that the gelling agent does not affect the physical properties.
（結論）
上記実施例及び比較例により、良質な蛋白質を高濃度で含み、適切なゲルの破断強度であり、かつ風味が良好なゲル状栄養組成物は、実施例１〜６のゲル状栄養組成物であった。
すなわち、ゲル化剤及び総合乳蛋白質を含むゲル状栄養組成物であって、アミノ酸スコアが８０〜１００であり、組成物中の蛋白質含量が６〜２０質量％であり、ゲルの破断強度が１８００〜１００００Ｎ／ｍ２であり、並びに該総合乳蛋白質中のカゼインとホエイ蛋白質の比率が８３：１７〜１００：０であることを特徴とするゲル状栄養組成物は、良質な蛋白質を高濃度で含み、ゲルの破断強度が適切で、かつ風味が良好なゲル状栄養組成物である。
(Conclusion)
According to the above examples and comparative examples, the gel-like nutritional composition of Examples 1 to 6 contains the high-quality protein at a high concentration, has an appropriate gel breaking strength, and has a good flavor. there were.
That is, a gel-like nutritional composition containing a gelling agent and a total milk protein, the amino acid score is 80 to 100, the protein content in the composition is 6 to 20% by mass, and the gel breaking strength is 1800. ~10000N / m 2, and the ratio of casein and whey proteins in the total milk protein is 83: 17 to 100: 0 gelled nutritional composition, which is a is a high concentration of high-quality protein It is a gel-like nutritional composition that contains the gel with suitable breaking strength and good flavor.
良質な蛋白質を高濃度で含み、適切なゲルの破断強度であり、かつ風味が良好なゲル状栄養組成物を提供できる。 A gel-like nutritional composition containing a high-quality protein at a high concentration, having an appropriate gel breaking strength, and having a good flavor can be provided.
Claims (4)
アミノ酸スコアが８０〜１００であり、
該組成物中の蛋白質含量が６〜２０質量％であり、
ゲルの破断強度が１８００〜１００００Ｎ／ｍ２であり、並びに
該総合乳蛋白質中のカゼインとホエイ蛋白質の比率が８３：１７〜１００：０である、
ことを特徴とするゲル状栄養組成物。
A gel-like nutritional composition comprising a gelling agent and a total milk protein,
The amino acid score is 80-100,
The protein content in the composition is 6 to 20% by mass,
The breaking strength of the gel is 1800 to 10000 N / m 2 , and the ratio of casein to whey protein in the total milk protein is 83:17 to 100: 0,
A gel-like nutritional composition characterized by the above.
The gel nutrition composition according to claim 1, wherein a ratio of the casein to the whey protein is 85:15 to 100: 0.
Gel nutritional composition according to claim 1 or 2, wherein the breaking strength of the gel is 1900~6000N / m 2.
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