JP4338945B2 - Water-soluble polymer with improved solubility - Google Patents

Description

【００３８】
【実施例２】
実施例１で用いたα−化馬鈴薯澱粉（Ｅｘ．４、５）、実施例１で調製した対照例１の顆粒状品（Ｅｘ．６〜９）及び対照例２の顆粒状品（Ｅｘ．１０）に試料Ｎｏ．４のオクテニルコハク酸澱粉を表２に示す含量になるように混合して得た水溶性高分子を実施例１の評価基準に従って評価し、その結果を表２に示す。
【００３９】
【表２】

【００４０】
【実施例３】
実施例１に於いて、α−化馬鈴薯澱粉に替えてβ−澱粉である市販の馬鈴薯澱粉９５部と試料Ｎｏ．３を５部とし、試料Ｎｏ．２のオクテニルコハク酸澱粉を１０％濃度で含む液４０部を９０℃に加熱し、室温に冷却して調製して噴霧液として用いた他は同様にして平均粒径約２５０μｍの馬鈴薯澱粉の顆粒状品を得た。 水８６部に醤油４部、砂糖２部、食塩０．５部、調味料（アミノ酸など）１．５部、ゴマ油０．５部、コショウ０．１部を加えて調製した沸騰している中華ス−プ１００部に軽く攪拌しながら得られた水溶性高分子５部を加えて中華あんを調製した。その際、ダマの生成はなく、容易に均一な粘性が得られた。
【００４１】
【実施例４】
実施例１に於いて、α−化馬鈴薯澱粉に替えてキサンタンガム２０部、グア−ガム３０部、及び実施例１で用いたα−化馬鈴薯澱粉４０部、マルトデキストリン１０部を用い、噴霧液として試料Ｎｏ．４のオクテニルコハク酸澱粉を１５％濃度で含む液６０部を用いた他は同様にして平均粒径約３５０μｍの顆粒状とした。得られた水溶性高分子１．５部を１００部の牛乳に加え、１０秒後に軽く攪拌したところ、ダマの生成もなく速やかに嚥下障害者用として適度な飲み易い粘性が得られた。
【００４２】
【実施例５】
α−化ワキシ−コ−ンスタ−チ「マツノリンＦＡ−１０２」（松谷化学工業社製）１．０部と試料Ｎｏ．４のオクテニルコハク酸澱粉０．２部を混合して得た水溶性高分子に、全脂粉乳１１．５部、砂糖２．０部、コ−ンパウダ−３部、食塩１．０部を加えて混合して即席コ−ンポタ−ジュを調製し、これに熱湯１８０部を注いで軽くかき混ぜることにより、適度で均一な粘性を有するコ−ンポタ−ジュが即座に得られた。
【００４３】
【実施例６】
α−化タピオカ澱粉「マツノリンＭ−２２」（松谷化学工業社製）２０部、キサンタンガム１０部、マルトデキストリン「パインフロ−」（松谷化学工業社製）６５部、試料Ｎｏ．３のオクテニルコハク酸澱粉５部を混合して転動層造粒機「ニュ−マルメライザ−ＮＱ３５０」（不二パウダル社製）に投入し、噴霧液として試料Ｎｏ．４のオクテニルコハク酸澱粉の１０％水溶液３０部を用いて造粒して平均粒径が約２００ｍμの顆粒状とした。得られた水溶性高分子２部を市販の茶飲料１００部に加え、約１０秒後に軽く攪拌することにより、嚥下障害者用の飲料として適度な粘性がダマの生成もなく、スム−スに得られた。[0001]
[Industrial application fields]
The present invention relates to a water-soluble polymer having improved solubility. More specifically, the present invention relates to a water-soluble polymer that is easily dispersed and dissolved without causing lumps when dissolved in liquid food such as water, juice, and soup. Its purpose is to provide molecules.
[0002]
[Prior art]
Water-soluble polymers such as starch, α-modified starch, and xanthan gum dissolve in cold water or hot water to produce viscosity, and as a thickener in foods that require instant viscosity application, It is used for imparting the viscosity of foods that can be prepared simply by adding cold water or hot water, such as powder sauces, instant desserts, and instant noodle powder sources.
[0003]
In recent years, the population of persons with dysphagia who have difficulty in swallowing food has increased with the increase in the elderly population. For people with dysphagia, non-viscous liquid foods such as tea, juice, and soup are prone to accidental aspiration of food accidentally entering the trachea. In this case, it is necessary to add viscosity to various foods, and it is necessary for anyone to be instantly imparted with viscosity. It has been demanded.
[0004]
However, since water-soluble polymers are highly viscous and strongly hydrophilic, adding water to hot food, hot water, juice, or other liquid foods with simple agitation can cause lumps and cannot be dissolved. There was a problem.
[0005]
As an improvement method,
(1) Use a powerful high-speed stirrer such as a homomixer (2) Mix and dissolve with easily soluble materials such as sugar, powdered candy, dextrin and powder seasoning (3) Granulate (4) Alco (5) A combination of these methods has been adopted depending on the purpose.
[0006]
Among these methods, there are no special machines or restrictions on the components to be added, and a granulated method is widely used as an effective means. However, especially for the purpose of imparting viscosity for dysphagic persons, There are various types of foods, the degree of viscosity is various, and even a thickening agent that has been improved to such an extent that it can be added and dissolved while stirring may be used by various people. In the case of stirring after that, even if it was obtained by combining (2) and (3), which were the most effective means in the past, the formation of lumps could not be completely prevented.
[0007]
In this way, the water-soluble polymer used as a thickening agent for foods for dysphagia in particular has been used in a variety of foods, such as stirring after a while after being added to a wide range of foods. However, there is a need for a water-soluble polymer that can achieve the purpose of imparting viscosity without causing lumps, that is, has a significantly improved solubility.
[0008]
[Problems to be solved by the invention]
The problem to be solved by the present invention is a water-soluble polymer used as a thickening agent for liquid foods including water, and can be easily dissolved without causing lumps even if the dissolution method is rough. Thus, the object is to provide a water-soluble polymer whose solubility is remarkably improved.
[0009]
[Means for Solving the Problems]
As a result of intensive studies in view of the present situation, the present inventors have found that octenyl succinic acid starch can be incorporated into a water-soluble polymer, and the present invention has been completed.
That is, the present invention relates to a water-soluble polymer containing 0.3 to 20% by mass of octenyl succinate starch, preferably the water-soluble polymer is granulated, and particularly preferably octenyl succinate starch. The present invention relates to a water-soluble polymer having improved solubility obtained by granulating into a granule using a binder.
[0010]
Operation and configuration of the invention
The water-soluble polymer with improved solubility according to the present invention can be used in foods prepared by adding water or hot water, such as instant soups and instant noodle powder sources, and boiled soups. It can be used for foods that are added to give viscosity, such as foods such as Chinese bean paste, and foods that require instant viscosity application, such as foods for dysphagia. These foods are in a temperature range from a low temperature to a boiled state as long as they are in a liquid state depending on their types and forms.
[0011]
In the present invention, such foods that are instantly required to be viscous are hereinafter collectively referred to as water or liquid foods unless otherwise specified. Therefore, the term “liquid food” includes water and hot water, and the term “water” includes hot water and foods as described above.
[0012]
In the present invention, the water-soluble polymer refers to a polymer (except for psyllium) composed of a carbohydrate for food that dissolves or swells in water and produces a viscosity at a relatively low concentration, and is simply separated and purified. Includes any physical or chemical treatment. Specifically, β-starch containing modified starch, α-modified starch containing modified starch, xanthan gum, locust bean gum, guar gum, tamarind gum, konjac mannan, gellan gum, sodium alginate, tara gum, agar, Examples thereof include carboxymethyl cellulose. Among these, the temperature of the liquid food used is selected in consideration of a viscous texture in which a water-soluble carbohydrate that expresses the conditional viscosity is desired.
[0013]
These water-soluble polymers have strong hydrophilicity and high viscosity, so when added to liquid food, the surface in contact with the liquid is gelatinized and becomes partially highly viscous, making it difficult for water to penetrate inside. Is paste-like and the inside is a lump-like lump, or the inside is once paste-like, but even when stirred with a bowl-like lump, it does not become a uniform paste, so-called lumps cannot be dissolved Have a problem. The current state of this improvement method is as described above, and when it is dissolved together with a seasoning such as a powder soup, or when it is added and dissolved while stirring under a certain condition, it does not matter so much. For people with disabilities, it is required to add only water-soluble polymers to liquid foods to give viscosity, and not only various foods are targeted, but also those who prepare them add various water-soluble polymers After a while, there was a case of stirring after a while, and in such an application, the state of the art has not been satisfactory. The water-soluble polymer of the present invention has solubility that can cope with such applications. That is, the improved solubility of the present invention means that it can be easily dispersed and dissolved in such applications without causing lumps.
[0014]
The octenyl succinic acid starch used in the present invention is obtained by esterifying octenyl succinic anhydride into starch according to a conventional method. The degree of esterification that is prescribed for food use by the US FDA (Food and Drug Administration), that is, a product obtained by esterifying starch with an amount of octenyl succinic anhydride not exceeding 3 mass% is effective. In addition, it is also effective to use a partially decomposed product of starch or dextrin by treatment with acid, oxidizing agent, enzyme or heat before or after reacting octenyl succinic anhydride.
[0015]
Octenyl succinic acid starch obtained by reacting natural starch with octenyl succinic anhydride dissolves in hot water but is insoluble in cold water, and the same applies to a partially decomposed product of starch treated with an acid or an oxidizing agent. In order to make this type soluble in cold water, it is gelatinized using a drum dryer, spray dryer, extruder, etc. and dried to form α-starch, or gelatinized to produce enzyme and / or Alternatively, it can be performed by means such as decomposition with an acid to form a dextrin type.
[0016]
The raw material starch used to produce this octenyl succinic acid starch is a commercially available starch such as potato starch, corn starch, wheat starch, tapioca starch, rice starch, waxy corn starch, sago starch, etc. However, since the water-soluble polymer obtained is excellent in transparency and can be used for a wide range of foods including foods that require transparency, the waxy cone star is used. -Preferred are those selected from chi, potato starch, tapioca starch, and rice bran starch.
[0017]
The present invention is to provide a water-soluble polymer having improved solubility, which is achieved by incorporating 0.3 to 20% by mass of the above-mentioned octenyl succinic acid starch in the water-soluble polymer. If the content of octenyl succinic acid starch is less than 0.3% by mass, the effect of improving the solubility is insufficient, and if it exceeds 20% by mass, the dispersion in water becomes poor, resulting in dissolution. It tends to get worse.
[0018]
If the content of octenyl succinic acid starch is within this range, the effect of improving the solubility is noticeable, but among them, the content becomes more prominent, so the type of food used and other food ingredients are included. However, the degree of solubility desired varies depending on the degree of recognition of the user and the like, and the difficulty in solubility depends on the type of water-soluble polymer used, so the content is determined in consideration of them. For example, when easily soluble components such as seasonings, dextrin, and sugars are included, the content of octenyl succinic acid starch can be reduced.
[0019]
Although octenyl succinic acid starch is not necessarily dissolved in cold water depending on its type, it may be soluble in cold water when added to water-soluble polymer even when viscosity is imparted using hot water. The effect of the invention is easily expressed and desirable, and it is gelatinized in the process of inclusion to make it soluble in cold water, or a cold water soluble type is used.
[0020]
As a method of adding octenyl succinic acid starch to a water-soluble polymer,
(A) Mixing powdered or granulated water-soluble polymer and cold water soluble type octenyl succinic acid starch (B) Adding the water-soluble polymer before the drying step during preparation or purification (C) ( Prepare the water-soluble polymer excessively contained in B) and mix with the water-soluble polymer not contained (D) Granulate (A) mixed in powder form (E) Binder when granulating (F) Using octenyl succinic acid starch solution as a combination of these methods as appropriate.
[0021]
All of these methods are effective and can be appropriately selected depending on the type of desired water-soluble polymer, the type of food to be used, etc., but the method of (E) granulating octenyl succinic acid starch as a binder Compared with other methods, the present invention can be implemented more effectively, and the content of octenyl succinic acid starch can be reduced when the same effect is achieved.
[0022]
Granulation can be carried out using methods such as stirring granulation, extrusion granulation, tumbling granulation, fluidized bed granulation and the like generally performed in the fields of food and medicine. In particular, since fluidized bed granulation involves spraying, granulating, and drying a binder at the same time, spraying an aqueous solution of octenyl succinic acid starch as a binder results in binding of water-soluble polymers and the surface of the granules with octenyl succinic acid starch. The effect of the present invention is further manifested in the coated shape.
[0023]
For fluidized bed granulation, a conventional fluidized bed granulator is used, and warm air (intake air) temperature is 30 to 120 ° C, preferably 70 to 100 ° C, product temperature 25 to 70 ° C, preferably 35 to 60 ° C. The binder is sprayed while flowing the water-soluble polymer to the extent. The amount of spray is determined by the difficulty of granulation (increase the amount of spray if granulation is difficult) and the degree of granules desired (increase the amount of spray when the particle size of the granules is increased) It is about 10-70 mass parts with respect to 100 mass parts of water-soluble polymers.
[0024]
When fluidized bed granulation is performed using octenyl succinate starch as a binder as a preferred form, an aqueous solution of the starch is sprayed. The viscosity of the spray solution is preferably as low as possible because uniform spraying is possible, and the concentration of the spray solution is limited by the viscosity of the octenyl succinate starch. In order to increase the content, it is necessary to spray a high-concentration solution. In that case, octenyl succinic acid starch having a low viscosity can be used, and a low-concentration solution can be used when the content may be small. High viscosity can also be used. Generally, a low viscosity type, such as a dextrin type, tends to be slightly inferior in the effect of improving the solubility at the same content. The viscosity was lowered by reducing the molecular weight to some extent, that is, the viscosity measured at a concentration of 20% by mass and 30 ° C. was 15 to 500 mPa.s. It is preferable to use an octenyl succinate starch of about s because it can be adjusted to a desired spray concentration according to the desired content.
[0025]
In the case of a type that dissolves in cold water, the octenyl succinate starch aqueous solution is dissolved in cold water to a desired concentration. In the type that dissolves in hot water, it is dispersed in water to a desired concentration and heated to about 90 ° C. to obtain an aqueous solution. The concentration at that time is determined by the desired content and the amount of spray solution, and these are determined by the desired degree of solubility of the water-soluble polymer. That is, in the case of a water-soluble polymer having very poor solubility, or when it is desired to further improve the solubility, the content is increased and the particle diameter of the granule is increased. That is, the concentration of the aqueous solution to be sprayed is increased, and the amount of sprayed liquid is increased.
[0026]
In this case, to increase the content, the concentration is inevitably increased or the amount of spray liquid is increased. Therefore, a part of the octenyl succinic acid starch necessary for these adjustments is preliminarily soluble in water. The same effect can be obtained by mixing with molecules and granulating them. The octenyl succinic acid starch to be mixed at this time is preferably of a type that dissolves in cold water.
[0027]
In the present invention, those granulated in this way are more preferred, but the degree of granules at that time is preferably about 90 to 500 μm in terms of the average particle size. If it is too fine, the effect of granulating tends to be poor, and if it is too large, the dissolution rate may be too slow depending on the purpose of use. The particle size is adjusted by the amount of spray liquid, the spray speed, and the size of spray droplets.
[0028]
Since the solubility of the water-soluble polymer with improved solubility obtained in the present invention is remarkably improved, only the water-soluble polymer can be added to various liquid foods by a rough method. Suitable for thickening agents for foods for dysphagia that impart viscosity, but is not limited to this, foods that need instant viscosity, such as instant soup, instant noodle soup, Chinese anse Any food that can make use of the characteristics of the water-soluble polymer of the present invention can be used.
[0029]
The present invention is achieved by adding octenyl succinic acid starch to a water-soluble polymer, and for the purpose of the present invention, it is not necessary to add any other food material or food additive. If necessary depending on the type, a desired food material and food additive can be appropriately used. For example, sugars such as glucose, fructose, sugar, maltose, lactose, trehalose, powdered starch syrup, reduced powdered starch syrup, maltodextrin, reduced maltodextrin, various oligosaccharides, high sweetness such as aspartame, stevia Sweeteners, acidulants such as citric acid, malic acid, lactic acid and succinic acid, dairy products such as powdered milk and skim milk powder, flour such as wheat flour, cornflower and rice flour, egg products such as dried egg yolk and dried egg white Physiologically active substances such as indigestible dextrin, polydextros, crystalline cellulose, vitamins, minerals, polyphenols, isoflavones, chitosan, propolis, health supplement materials, salt, powdered miso , Emulsification of seasonings such as powdered soy sauce and powdered animal and plant extracts, glycerin fatty acid esters, sucrose fatty acid esters, phospholipids, etc. Other, powdered juices, spices, dried vegetables, powdered fats and oils, perfumes, and the like colorants.
[0030]
【Example】
Next, the present invention will be described in more detail with reference examples and examples. In Reference Examples and Examples, “part” means “part by mass” and “%” means “mass%”.
[0031]
[Reference Example 1]
Suspend 100 parts of waxy cone starch in 120 parts of water and add 2.5 parts of octenyl succinic anhydride while maintaining the pH at 7.5 to 9.3 using a 3% aqueous solution of sodium hydroxide. The sample was neutralized with hydrochloric acid, washed with water, dehydrated and dried. 1 octenyl succinic acid starch was obtained.
[0032]
[Reference Example 2]
100 parts of tapioca starch was suspended in 130 parts of 4% aqueous sulfuric acid, treated at 45 ° C. for 8 hours, neutralized to pH 9.3 with caustic soda, and esterified in the same manner as in Reference Example 1 to give 20%, 30% The viscosity at 125 ° C is 125 mPa.s. The octenyl succinic acid starch of sample 2 of s was obtained.
[0033]
[Reference Example 3]
Sample No. obtained in Reference Examples 1 and 2 Samples No. 1 and No. 2 were each made into 40% strength aqueous suspensions, which were converted into α-form by a conventional method using a drum dryer and dissolved in cold water. 3 (high viscosity), sample no. 4 (low viscosity) octenyl succinate starch was obtained.
[0034]
[Example 1]
100 parts of α-modified potato starch “Matsunoline M” (manufactured by Matsutani Chemical Industry Co., Ltd.) is placed in a small fluidized bed apparatus (laboratory granulator manufactured by Okawara Seisakusho, FLO-5 type), and α- Sample No. 5 was added to 50 parts of water while fluidizing the starch. A solution of 4 octenyl succinic acid starch (expressed as OS starch in the table) at a concentration shown in Table 1 was sprayed (Ex. 1 to 3) to granulate to an average particle size of about 300 μm. The control example 1 was similarly granulated with 50 parts of water, and the control example 2 was replaced with α-modified potato starch and 75 parts of α-modified potato starch and maltodextrin “Paindex 2” (manufactured by Matsutani Chemical Co., Ltd.). 25 parts of the mixture was similarly granulated with 50 parts of water.
[0035]
3 parts of the obtained granular water-soluble polymer was added to 100 parts of water at 20 ° C., and lightly stirred after 10 seconds, and the solubility was evaluated according to the following criteria. The results are shown in Table 1.
[0036]
<Evaluation criteria>
A: No formation of lumps is observed, dispersibility is very good, and viscosity is very smooth. O: Even if there is some formation of lumps, it disappears easily by continuing a little stirring. Good dispersibility and smooth development of viscosity Δ: Slightly much lumps are formed and does not disappear when the stirring is continued for a while, or dispersibility is slightly poor, and it takes a little time to develop viscosity ×: Many lumps are formed and do not disappear even if stirring is continued, or dispersibility is poor, and it takes time to develop viscosity.
[Table 1]

[0038]
[Example 2]
The α-modified potato starch (Ex. 4, 5) used in Example 1, the granular product (Ex. 6 to 9) of Control Example 1 prepared in Example 1, and the granular product (Ex. 10) in Sample No. A water-soluble polymer obtained by mixing 4 octenyl succinic acid starches to a content shown in Table 2 was evaluated according to the evaluation criteria of Example 1, and the results are shown in Table 2.
[0039]
[Table 2]

[0040]
[Example 3]
In Example 1, 95 parts of commercially available potato starch which is β-starch instead of α-modified potato starch and sample No. 3 is 5 parts, and sample No. 40 parts of a liquid containing 10% octenyl succinic acid starch was heated to 90 ° C., cooled to room temperature, and used as a spray liquid. Granules of potato starch having an average particle size of about 250 μm I got a product. Boiling Chinese prepared by adding 86 parts of water, 4 parts of soy sauce, 2 parts of sugar, 0.5 parts of salt, 1.5 parts of seasonings (such as amino acids), 0.5 part of sesame oil, and 0.1 parts of pepper. Chinese anse was prepared by adding 5 parts of the water-soluble polymer obtained while stirring lightly to 100 parts of the soup. At that time, there was no generation of lumps and a uniform viscosity was easily obtained.
[0041]
[Example 4]
In Example 1, 20 parts of xanthan gum, 30 parts of guar gum, 40 parts of α-modified potato starch and 10 parts of maltodextrin used in Example 1 were used in place of α-formed potato starch as a spray solution. Sample No. A granule having an average particle diameter of about 350 μm was obtained in the same manner except that 60 parts of a solution containing 4 octenyl succinate starch at a concentration of 15% was used. When 1.5 parts of the obtained water-soluble polymer was added to 100 parts of milk and gently stirred after 10 seconds, a moderately easy-to-drink viscosity was obtained for dysphagia without any formation of lumps.
[0042]
[Example 5]
α-Condensed waxy cone “Matsunoline FA-102” (manufactured by Matsutani Chemical Co., Ltd.) 1.0 part and sample No. 4 parts of octenyl succinic acid starch of 4 parts was mixed with water-soluble polymer 11.5 parts of whole milk powder, 2.0 parts of sugar, 3 parts of powder, 1.0 part of salt. An instant cooking potage was prepared by mixing, and 180 parts of hot water was poured into this and lightly stirred to obtain a quick cooking pottery having an appropriate and uniform viscosity.
[0043]
[Example 6]
α-tapioca starch “Matsunoline M-22” (manufactured by Matsutani Chemical Industry Co., Ltd.) 20 parts, xanthan gum 10 parts, maltodextrin “Pine Flow” (manufactured by Matsutani Chemical Industry Co., Ltd.) 65 parts, sample no. No. 3 octenyl succinic acid starch 5 parts was mixed and charged into a rolling bed granulator “New Malmerizer-NQ350” (Fuji Powder Co., Ltd.). Granules were prepared using 30 parts of a 10% aqueous solution of No. 4 octenyl succinate starch to give granules having an average particle size of about 200 mμ. By adding 2 parts of the obtained water-soluble polymer to 100 parts of a commercially available tea drink and stirring it lightly after about 10 seconds, it has a moderate viscosity as a drink for people with dysphagia. Obtained.

Claims (3)

  A water-soluble polymer comprising a carbohydrate having an improved solubility containing 0.3 to 20% by mass of octenyl succinate starch (excluding psyllium).   2. The water-soluble polymer comprising a carbohydrate with improved solubility according to claim 1, wherein the water-soluble polymer comprising a carbohydrate is granulated.   3. The water-soluble polymer comprising a carbohydrate with improved solubility according to claim 2, wherein octenyl succinate starch is used as a binder at the time of granulation to contain at least a part of the content.