JP2019176790A - Film material for coated powder formation, and coated powder - Google Patents

Film material for coated powder formation, and coated powder Download PDF

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JP2019176790A
JP2019176790A JP2018068032A JP2018068032A JP2019176790A JP 2019176790 A JP2019176790 A JP 2019176790A JP 2018068032 A JP2018068032 A JP 2018068032A JP 2018068032 A JP2018068032 A JP 2018068032A JP 2019176790 A JP2019176790 A JP 2019176790A
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oil
powder
water
film material
coating
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JP7102864B2 (en
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由紀子 猪股
Yukiko Inomata
由紀子 猪股
宮崎 厚徳
Atsunori Miyazaki
厚徳 宮崎
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NOF Corp
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Abstract

To provide a film material for coated powder formation, that can achieve both barrier to the outside and water dispersibility.SOLUTION: In order to solve the problem, a particulate film material for coated powder formation, containing an oil/fat (A) having a solid fat content at 35°C of 20 to 100% and a melting point of 40 to 70°C, an emulsifier (B), and a water-soluble excipient, and in which: the content of the oil/fat (A) is 40 to 75 mass%, the content of the emulsifier (B) is 2.5 to 13 mass%, and the content of the water-soluble excipient (C) is 22.5 to 45 mass%; and the differential scanning calorimetry endothermic peak temperature is 40 to 70°C and the average particle size is 10 to 150 μm, is provided.SELECTED DRAWING: Figure 1

Description

本発明は、粉末表面の被覆に用いられる膜材、および、これを用いて得られる被覆粉末に関する。   The present invention relates to a film material used for coating a powder surface, and a coating powder obtained using the film material.

油脂コーティング技術は、粉末表面に固体油脂組成物を物理的に衝突・展延させて被覆する技術である。核となる粉末を固体油脂組成物で被覆し、外界と遮断することによって、粉末同士の接触を回避したり、各粉末物質の化学反応を抑制したりすることができる。例えば、特許文献1には、脂質粉体と芯物質を混合し芯物質が脂質で被覆された脂質被覆物を製造する方法が開示され、脂質被覆物において芯物質が十分に被覆されることで、保存時に団粒化することなく長期にわたり安定であることが開示されている。   The oil / fat coating technique is a technique in which a solid oil / fat composition is physically collided and spread on a powder surface. By covering the core powder with the solid oil composition and blocking it from the outside, contact between the powders can be avoided or chemical reaction of each powder substance can be suppressed. For example, Patent Document 1 discloses a method for producing a lipid coating in which a lipid powder and a core material are mixed and the core material is coated with lipid, and the core material is sufficiently coated in the lipid coating. It is disclosed that it is stable for a long time without aggregation during storage.

最近では、被覆粉末には新たな機能が求められるようになってきた。粉末飲料や入浴剤等の用途においては、水へ分散ないし溶解させて用いる場合があり、その際、水への分散性が要求される。例えば、特許文献2においては、粒子表面を親水性素材で予め被覆した粉末油脂を膜材として用い、吸湿性粉末からなる芯材を被覆することによって、水への親和性を向上させる方法が開示されている。   Recently, new functions have been required for coating powders. In applications such as powdered beverages and bath additives, they may be used by being dispersed or dissolved in water, and in that case, dispersibility in water is required. For example, Patent Document 2 discloses a method for improving affinity for water by using powdered fats and oils whose particle surfaces are previously coated with a hydrophilic material as a film material and coating a core material made of a hygroscopic powder. Has been.

特開2007−261985号公報JP 2007-261985 A 特開2001−017093号公報JP 2001-017093 A

上記の開示技術では、良好な水分散性を有しているため、吸湿性粉末からなる芯材が溶解した後、膜材による「油浮き」を防止することができる。しかしながら、油脂コーティング技術の利点である外界との遮断性については十分に検討されていない。そこで、油脂コーティング技術の分野において、外界との遮断性と水分散性とを両立させることのできる被覆粉末形成用膜材が求められている。   Since the disclosed technology has good water dispersibility, after the core material made of the hygroscopic powder is dissolved, “oil floating” by the film material can be prevented. However, the shielding from the outside, which is an advantage of the oil and fat coating technology, has not been sufficiently studied. Therefore, in the field of oil and fat coating technology, a coating powder forming film material that can achieve both a barrier property to the outside world and a water dispersibility has been demanded.

そこで、本発明の課題は、外界との遮断性と水分散性とを両立させることのできる被覆粉末形成用膜材を提供することである。   Then, the subject of this invention is providing the membrane | film | coat material for coating powder formation which can make the interruption | blocking property with an external field, and water dispersibility compatible.

本発明者らは、前記の課題に鑑み、鋭意検討した結果、特定融点かつ特定の固体脂含有量を有する油脂を乳化剤、水溶性賦形剤と特定量組み合わせて用いることにより、上記の課題を解決できることの知見を得て、本発明を完成するに至った。
すなわち、本発明は、次の〔1〕および〔2〕である。
As a result of intensive studies in view of the above problems, the present inventors have used the above-mentioned problems by using oils having a specific melting point and a specific solid fat content in combination with an emulsifier and a water-soluble excipient. Obtaining knowledge that it can be solved, the present invention has been completed.
That is, the present invention includes the following [1] and [2].

〔1〕35℃における固体脂含量が20〜100%、融点が40〜70℃である油脂(A)、乳化剤(B)、および水溶性賦形剤(C)を含有し、油脂(A)の含有量が40〜75質量%、乳化剤(B)の含有量が2.5〜13質量%、および水溶性賦形剤(C)の含有量が22.5〜45質量%であり、示差走査熱量測定の吸熱ピークが40〜70℃、平均粒子径が10〜150μmである粒子状の被覆粉末形成用膜材。
〔2〕前記の〔1〕の被覆粉末形成用膜材からなる被覆層を、粉末の表面に有する被覆粉末。
[1] Oil and fat (A) containing a solid fat content at 35 ° C. of 20 to 100% and a melting point of 40 to 70 ° C., an emulsifier (B), and a water-soluble excipient (C) The content of the emulsifier (B) is 2.5 to 13% by mass, and the content of the water-soluble excipient (C) is 22.5 to 45% by mass. A particulate coating powder forming film material having an endothermic peak in scanning calorimetry of 40 to 70 ° C. and an average particle diameter of 10 to 150 μm.
[2] A coating powder having a coating layer made of the coating powder forming film material according to [1] on the surface of the powder.

本発明によれば、外界との遮断性と水分散性とを両立させることのできる被覆粉末形成用膜材を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the membrane | film | coat material for coating powder formation which can make the interruption | blocking property with an external field and water dispersibility compatible is provided.

被覆粉末形成用膜材を用いて作製した被覆粉末を、水に分散させた画像である。It is the image which disperse | distributed the coating powder produced using the film | membrane material for coating powder formation in water.

[被覆粉末形成用膜材]
本発明の被覆粉末形成用膜材は、油脂(A)、乳化剤(B)、および水溶性賦形剤(C)を含有する。以下に各成分について詳述する。
[Film material for coating powder formation]
The film | membrane material for coating powder formation of this invention contains fats and oils (A), an emulsifier (B), and a water-soluble excipient | filler (C). Each component is described in detail below.

<油脂(A)>
本発明に用いる油脂(A)は、35℃における固体脂含量が20〜100%、融点が40〜70℃である。
本発明でA成分として使用できる油脂は、35℃における固体脂含量が20〜100%であり、下限値としては、好ましくは50%以上であり、より好ましくは70%以上である。35℃における固体脂含量が低すぎると、混合によるコーティング処理で良好な被覆物を得ることが困難になり、良好な加工適性が得られなくなる。
油脂の固体脂含量は、日本油化学会制定である基準油脂分析試験法(2.2.9−2003)に準じ、NMR装置は、 PRAXIS MODEL SFC−900Aを使用し測定することができる。
<Oil and fat (A)>
The fat (A) used in the present invention has a solid fat content at 35 ° C. of 20 to 100% and a melting point of 40 to 70 ° C.
The fats and oils that can be used as the component A in the present invention have a solid fat content at 35 ° C. of 20 to 100%, and the lower limit is preferably 50% or more, more preferably 70% or more. If the solid fat content at 35 ° C. is too low, it becomes difficult to obtain a good coating by a coating process by mixing, and good processability cannot be obtained.
The solid fat content of fats and oils can be measured using the PRAXIS MODEL SFC-900A in accordance with the standard fat and oil analysis test method (2.2.9-2003) established by the Japan Oil Chemical Society.

また、油脂(A)の融点は40〜70℃であり、下限値としては、好ましくは45℃以上であり、より好ましくは50℃以上である。上限値としては、好ましくは65℃以下であり、より好ましくは60℃以下である。融点が低すぎると、被覆粉末形成用膜材として使用した際に加工適性が低下し、高すぎると被覆粉末形成用膜材の製造が困難になる。
油脂(A)の融点は、基準油脂分析試験法「2.2.4.2 融点(上昇融点)」に準じて測定することができる。
Moreover, melting | fusing point of fats and oils (A) is 40-70 degreeC, As a lower limit, Preferably it is 45 degreeC or more, More preferably, it is 50 degreeC or more. As an upper limit, Preferably it is 65 degrees C or less, More preferably, it is 60 degrees C or less. If the melting point is too low, the processability decreases when it is used as a coating powder forming film material, and if it is too high, the production of the coating powder forming film material becomes difficult.
The melting point of the fat (A) can be measured according to the standard fat analysis method “2.2.4.2 Melting point (increased melting point)”.

本発明の被覆粉末形成用膜材、上記の性質を有する油脂であれば、特に限定されないが、例えば、植物性油や動物性油を含む食用油脂、鉱物油などを使用することができる。さらに、前記の食用油脂を分別したもの、水素添加した硬化物等も使用できる。前記の成分は、適宜1種単独で、または2種以上のものを配合して選ぶことができる。   Although it will not specifically limit if it is the film | membrane material for coating powder formation of this invention and the fats and oils which have said property, For example, edible fats and oils, a mineral oil, etc. containing vegetable oil and animal oil can be used. Furthermore, what fractionated said edible oil and fat, the hydrogenated hardened | cured material, etc. can be used. The above-mentioned components can be selected as appropriate alone or in combination of two or more.

食用油脂として、具体的にはパーム油、ナタネ油、大豆油、綿実油、コーン油、ヤシ油、パーム核油、米油、ゴマ油、オリーブ油、カカオ脂、サフラワー油、ヒマワリ油、月見草油、ボラージ油、ホホバ油、シソ油、エゴマ油、落花生油、米油等の天然の植物油脂;牛脂、豚脂、魚油、乳脂、鶏油、鯨油、マグロ油、イワシ油、サバ油、サンマ油、カツオ油、ニシン油、肝油、バター等の天然の動物油脂;またはこれら単独あるいは組み合わせの硬化油、極度硬化油、分別油、エステル交換油が挙げられ、さらに、中鎖脂肪酸トリグリセリドなどの合成トリグリセリドなどを配合した油脂が挙げられる。例えば、固体脂含量や融点の低い油脂は、前記の油脂成分と混合して固体脂含量を20〜100%、融点を40〜70℃と調製し、使用することもできる。   As edible oils and fats, specifically palm oil, rapeseed oil, soybean oil, cottonseed oil, corn oil, coconut oil, palm kernel oil, rice oil, sesame oil, olive oil, cocoa butter, safflower oil, sunflower oil, evening primrose oil, borage Natural vegetable oils such as oil, jojoba oil, perilla oil, sesame oil, peanut oil, rice oil; beef tallow, pork fat, fish oil, milk fat, chicken oil, whale oil, tuna oil, sardine oil, mackerel oil, saury oil, bonito Natural animal fats such as oil, herring oil, liver oil, butter; or these alone or a combination of hardened oil, extremely hardened oil, fractionated oil, transesterified oil, and synthetic triglycerides such as medium chain fatty acid triglycerides The blended fats and oils are mentioned. For example, fats and oils with a low solid fat content and a low melting point can be used by mixing with the above fat components and preparing a solid fat content of 20 to 100% and a melting point of 40 to 70 ° C.

本発明の被覆粉末形成用膜材における油脂(A)の含有量は、40〜75質量%であり、下限値としては、45質量%以上であり、より好ましくは50質量%以上である。上限値としては、好ましくは70質量%以下であり、より好ましくは60質量%以下である。油脂(A)の含有量が低すぎると被覆性能が低下し、高すぎると加工適性が低下する。   Content of the fats and oils (A) in the film | membrane material for coating powder formation of this invention is 40-75 mass%, and is 45 mass% or more as a lower limit, More preferably, it is 50 mass% or more. As an upper limit, Preferably it is 70 mass% or less, More preferably, it is 60 mass% or less. When the content of the oil (A) is too low, the coating performance is lowered, and when it is too high, the workability is lowered.

<乳化剤(B)>
本発明に用いる乳化剤(B)は、油脂(A)を乳化させられるものであれば特に限定されないが、例えば、オクテニルコハク酸デンプンナトリウム、グリセリン脂肪酸ナトリウム、カゼインナトリウム、モノグリセライド、有機酸モノグリセライド等のグリセリン脂肪酸エステル、ポリグリセリン脂肪酸エステル、ポリグリセリン縮合リシノール酸エステル、ショ糖脂肪酸エステル、ソルビタン脂肪酸エステル、プロピレングリコール脂肪酸エステル、レシチン、サポニンなどが挙げられ、好ましくは、オクテニルコハク酸デンプンナトリウム、グリセリン脂肪酸ナトリウム、カゼインナトリウム、グリセリン脂肪酸エステルが挙げられる。
これらの乳化剤は単独で用いてもよいし、2種以上を組み合わせて用いてもよい。
<Emulsifier (B)>
The emulsifier (B) used in the present invention is not particularly limited as long as it can emulsify the fat (A). For example, glycerol fatty acid such as sodium octenyl succinate, sodium glycerin fatty acid, sodium caseinate, monoglyceride, organic acid monoglyceride, etc. Ester, polyglycerin fatty acid ester, polyglycerin condensed ricinoleic acid ester, sucrose fatty acid ester, sorbitan fatty acid ester, propylene glycol fatty acid ester, lecithin, saponin, and the like, preferably starch sodium octenyl succinate, sodium glycerin fatty acid, sodium caseinate And glycerin fatty acid ester.
These emulsifiers may be used alone or in combination of two or more.

本発明の被覆粉末形成用膜材における乳化剤(B)の含有量は、2.5〜13質量%であり、下限値としては、4質量%以上であり、より好ましくは5質量%以上である。上限値としては、好ましくは10量%以下であり、より好ましくは8質量%以下である。乳化剤(B)の含有量が低すぎると水への分散性が得られず、高すぎると被覆粉末形成用膜材にした後に凝結しやすくなったりする。   Content of the emulsifier (B) in the film | membrane material for coating powder formation of this invention is 2.5-13 mass%, and is 4 mass% or more as a lower limit, More preferably, it is 5 mass% or more. . As an upper limit, Preferably it is 10 mass% or less, More preferably, it is 8 mass% or less. If the content of the emulsifier (B) is too low, dispersibility in water cannot be obtained, and if it is too high, it tends to coagulate after forming a coating powder forming film material.

<水溶性賦形剤(C)>
本発明に用いる水溶性賦形剤(C)は、被覆粉末形成用膜材の成形性や、水への分散性を向上させるために用いられる。水溶性賦形剤(C)としては、特に限定されないが、例えば、乳糖や加工澱粉、脱脂粉乳やトレハロース、麦芽糖やデキストリンなどの糖質や、ポリエチレングリコール、ポリプロピレングリコールなどのポリアルキレングリコールなどが挙げられ、好ましくは、デキストリン、乳糖、脱脂粉乳が挙げられる。本発明に用いる水溶性賦形剤(C)は、水溶性であるので水への分散性が良好で良質な被覆物を得ることができる。
本発明の被覆粉末形成用膜材における水溶性賦形剤(C)の含有量は22.5〜45質量%であり、下限値としては、好ましくは30質量%以上であり、より好ましくは35質量%以上である。上限値としては、好ましくは、44質量%以下であり、より好ましくは40質量%以下である。水溶性賦形剤(C)の含有量が低すぎると加工適性が低下し、高すぎると被覆性能が低下する。
<Water-soluble excipient (C)>
The water-soluble excipient (C) used in the present invention is used for improving the moldability of the coating powder-forming film material and the dispersibility in water. The water-soluble excipient (C) is not particularly limited, and examples thereof include sugars such as lactose, processed starch, skim milk powder, trehalose, maltose, and dextrin, and polyalkylene glycols such as polyethylene glycol and polypropylene glycol. Preferably, dextrin, lactose and nonfat dry milk are mentioned. Since the water-soluble excipient (C) used in the present invention is water-soluble, a good-quality coating with good dispersibility in water can be obtained.
Content of the water-soluble excipient | filler (C) in the film | membrane material for coating powder formation of this invention is 22.5-45 mass%, As a lower limit, Preferably it is 30 mass% or more, More preferably, 35 It is at least mass%. As an upper limit, Preferably, it is 44 mass% or less, More preferably, it is 40 mass% or less. If the content of the water-soluble excipient (C) is too low, the processability is lowered, and if it is too high, the coating performance is lowered.

<その他の成分>
本発明の被覆粉末形成用膜材は、上記の(A)〜(C)成分に加えて、その他の成分を配合することできる。
その他の成分としては、被覆粉末形成用膜材において、水分散性等の性質を阻害しない成分であればよく、例えば、蛋白質、炭水化物、酸化防止剤、安定剤、無機塩等が挙げられる。
<Other ingredients>
In addition to the components (A) to (C), the coating powder forming film material of the present invention can contain other components.
Other components may be any components that do not inhibit properties such as water dispersibility in the coating powder forming film material, and examples thereof include proteins, carbohydrates, antioxidants, stabilizers, inorganic salts, and the like.

本発明の被覆粉末形成用膜材は、示差走査熱量測定の吸熱ピーク温度が40〜70℃であり、下限値としては、好ましくは45℃以上であり、より好ましくは50℃以上である。上限値としては、好ましくは60℃以下であり、より好ましくは55℃以下である。示差走査熱量測定の吸熱ピーク温度が40℃未満であると、加工適性が低下する。
なお、本発明の被覆粉末形成用膜材における示差走査熱量測定の吸熱ピーク温度は、被覆粉末形成用膜材の結晶化成分が融解する温度である。吸熱ピーク温度の測定方法は、示差走査熱量測定装置、Thermo plus DSC8230を用いて測定を行うことができ、吸収ピークの頂点の温度である。
The film material for forming a coated powder of the present invention has an endothermic peak temperature in differential scanning calorimetry of 40 to 70 ° C., and the lower limit is preferably 45 ° C. or higher, more preferably 50 ° C. or higher. As an upper limit, Preferably it is 60 degrees C or less, More preferably, it is 55 degrees C or less. When the endothermic peak temperature of differential scanning calorimetry is less than 40 ° C., the workability is lowered.
The endothermic peak temperature of differential scanning calorimetry in the coating powder forming film material of the present invention is a temperature at which the crystallization component of the coating powder forming film material melts. The endothermic peak temperature can be measured using a differential scanning calorimeter, Thermo plus DSC 8230, and is the temperature at the peak of the absorption peak.

本発明の被覆粉末形成用膜材は粒子状である。前記の粒子の平均粒子径は10〜150μmであり、下限値としては、好ましくは50μm以上であり、より好ましくは60μm以上である。下限値としては100μm以下であり、より好ましくは80μm以下である。
被覆粉末形成用膜材の平均粒子径を、上記の範囲内とすることで、芯材物質へ満遍なく被覆することができ、外界との遮断性を向上させることができる。
平均粒子径の測定は、レーザー回折式粒度分布測定装置を用いて測定することができる。
The film | membrane material for coating powder formation of this invention is a particulate form. The average particle diameter of the particles is 10 to 150 μm, and the lower limit is preferably 50 μm or more, and more preferably 60 μm or more. As a lower limit, it is 100 micrometers or less, More preferably, it is 80 micrometers or less.
By setting the average particle diameter of the coating powder forming film material within the above range, the core material can be uniformly coated, and the shielding property from the outside can be improved.
The average particle diameter can be measured using a laser diffraction particle size distribution measuring apparatus.

<被覆粉末形成用膜材の調製方法>
本発明の被覆粉末形成用膜材は定法により、上記の粒径範囲の粒子状として調製することができる。一般には、乳化工程および乾燥工程を経て製造することができる。
<乳化工程>
乳化工程は、油脂(A)と乳化剤(B)と水溶性賦形剤(C)を混合した水溶液を乳化する工程である。例えば、タンクに準備された温水に、乳化剤(B)と水溶性賦形剤(C)を攪拌しながら投入し溶解したあとで、攪拌を続けながら油脂(A)を投入し粗乳化させ、次いで、この粗乳化液を均質化機で乳化させる。
均質化機での乳化については、ラインミキサーやマントンゴーリン型ホモジナイザーの使用が好ましい。マントンゴーリン型ホモジナイザ−の場合は10MPa以上の処理条件が好ましく、より好ましくは20MPa、最も好ましくは30MPa以上である。この乳化によって油滴が1.0μm以下まで微細化されていることが、そのあとの工程や保管において酸化を抑制するために好ましい。
<Method for Preparing Film Material for Coating Powder Formation>
The film material for forming a coating powder of the present invention can be prepared in the form of particles in the above particle size range by a conventional method. Generally, it can manufacture through an emulsification process and a drying process.
<Emulsification process>
An emulsification process is a process of emulsifying the aqueous solution which mixed fats and oils (A), the emulsifier (B), and the water-soluble excipient | filler (C). For example, in the warm water prepared in the tank, the emulsifier (B) and the water-soluble excipient (C) are added with stirring and dissolved, and then the fat (A) is added and coarsely emulsified while stirring, The crude emulsion is emulsified with a homogenizer.
For emulsification in a homogenizer, use of a line mixer or a Manton Gorin type homogenizer is preferred. In the case of a Manton gorin type homogenizer, the treatment conditions are preferably 10 MPa or more, more preferably 20 MPa, and most preferably 30 MPa or more. It is preferable that the oil droplets are refined to 1.0 μm or less by this emulsification in order to suppress oxidation in the subsequent process and storage.

<乾燥工程>
乾燥工程は、乳化工程により乳化された乳化液を乾燥機で水分を蒸発させる工程である。例えば、乳化工程により乳化された乳化液をスプレードライヤーなどの乾燥機にて水分を蒸発させ乾燥させる。乾燥機はフリーズドライヤーやドラムドライヤーやスプレードライヤーや真空ベルト乾燥機等が例示される。スプレードライヤーは高度不飽和脂肪酸の酸化を抑制するために、熱風温度を100〜120℃、排風温度を70〜90℃とすることが好ましい。また乾燥の後、適宜粉砕、篩過、充填を行うが、粉砕の際に混合を兼ねて粉末流動性を向上させるために微粒二酸化ケイ素を添加しても構わない。そのあと適宜、粉砕、篩過、充填を行う。
<Drying process>
A drying process is a process of evaporating a water | moisture content with the dryer for the emulsion emulsified by the emulsification process. For example, the emulsified liquid emulsified in the emulsification step is dried by evaporating moisture with a dryer such as a spray dryer. Examples of the dryer include a freeze dryer, a drum dryer, a spray dryer, and a vacuum belt dryer. The spray dryer preferably has a hot air temperature of 100 to 120 ° C and an exhaust air temperature of 70 to 90 ° C in order to suppress oxidation of highly unsaturated fatty acids. Further, after drying, pulverization, sieving, and filling are performed as appropriate, but in the case of pulverization, fine silicon dioxide may be added in order to improve mixing and powder flowability. Thereafter, pulverization, sieving, and filling are performed as appropriate.

[被覆粉末]
本発明の被覆粉末は、前記の被覆粉末形成用膜材からなる被覆層を粉末の表面に有する。
本発明の被覆粉末は、本発明の被覆粉末形成用膜材を用いて定法により形成することができる。具体的には、被覆粉末形成用膜材と粉末状の芯剤物質それぞれを混合することにより行うことができる。
混合時の温度は20〜45℃の温度である。20℃未満では、被覆粉末形成用膜材が芯剤物質に効率よく付着できず、良好な被覆物を得ることができない。45℃を超えると、被覆粉末形成用膜材から油分の染み出しが生じやすくなり、良好な被覆物を得ることができないため好ましくない。
[Coating powder]
The coating powder of this invention has the coating layer which consists of said film | membrane material for coating powder formation on the surface of powder.
The coated powder of the present invention can be formed by a conventional method using the film material for forming a coated powder of the present invention. Specifically, the coating powder forming film material and the powdery core material can be mixed.
The temperature at the time of mixing is 20-45 degreeC. If it is less than 20 degreeC, the film | membrane material for coating powder formation cannot adhere efficiently to a core material, and a favorable coating cannot be obtained. Exceeding 45 ° C. is not preferable because oil oozes out easily from the coating powder forming film material and a good coating cannot be obtained.

混合時には、被覆粉末形成用膜材と芯剤物質の粉末が互いに接触・衝突することになるが、具体的には公知のミキサー、高能率粉体混合装置、高速気流の対流により粉体を混合接触させる装置等を使用する。これらの装置は、粉体を互いに接触・衝突させるとともに、装置内壁および補助具と接触・衝突させ被覆粉末形成用膜材を芯剤物質に付着・被覆させる。   During mixing, the coating powder forming membrane material and the core material powder come into contact with and collide with each other. Specifically, the powder is mixed by a known mixer, high-efficiency powder mixing device, or high-speed airflow convection. Use a contact device. In these apparatuses, the powder is brought into contact with and collided with each other, and the inner wall of the apparatus and the auxiliary tool are brought into contact with and collided to adhere and coat the coating powder forming film material onto the core material.

芯材物質としては、特に限定されないが、食塩、重曹、塩化マグネシウムなどの無機塩類;クエン酸、酒石酸、フマル酸などの有機酸類;グルコース、フラクトース、ガラクトースなどの単糖類、マルトース、ラクトース、シュクロース、トレハロースなどの二糖類、その他エリスリトール、ソルビトール、マンニトール、マルチトール、ラクチトール、パラチニット、キシリトールなどの糖類粉末;生薬エキス、野菜エキス、肉エキス、畜肉エキス、担子菌エキス、緑貝エキス、グルタイーストエキス、モルトエキスなどの天然抽出エキス粉末;トマト、ナス、ニンジンなどの野菜粉末;ワサビ、マスタード、ジンジャー、唐辛子などの香辛料粉末;アミラーゼ、プロテアーゼ、リパーゼなどの酵素粉末;酵母、ビフィズス菌、乳酸菌などの有用生菌粉末;ビタミンB群、ビタミンC、葉酸、ニコチン酸アミドなどの水溶性ビタミン、ビタミンA、D、E、Kなどの脂溶性ビタミンなどのビタミン粉末;スピルリナ、クロレラ、高麗ニンジン、霊芝、アガリスク、マイタケ、イチョウ葉、ウコン、ブルーベリー、各種ハーブ類、オオバコ、アロエ、茶、花粉、ガルシニア、ギムネマなどの植物体、藻類、菌糸体の粉末;キチン、キトサン、コラーゲンなどの粉末;その他ローヤルゼリー、プロポリス、核酸、レシチン、サポニン、ステロール類、カルニチン、セラミド、カテキン、サメ軟骨、ヘム鉄などの粉末、さらには粉末香料、ペプチド粉末、コンソメ粉末、色素粉末、ヘム鉄粉末などが挙げられる。これらは単独で用いてもよいし、2種以上を組み合わせて用いてもよい。これらの芯材の平均粒径は特に限定されないが、これらの芯材の平均粒子径は特に制限はないが、通常10μm〜3mm、好ましくは100μm〜1mmの範囲である。   The core material is not particularly limited, but inorganic salts such as sodium chloride, sodium bicarbonate and magnesium chloride; organic acids such as citric acid, tartaric acid and fumaric acid; monosaccharides such as glucose, fructose and galactose; maltose, lactose and sucrose , Disaccharides such as trehalose, other sugar powders such as erythritol, sorbitol, mannitol, maltitol, lactitol, palatinit, xylitol; Natural extract powder such as malt extract; vegetable powder such as tomato, eggplant, carrot; spice powder such as wasabi, mustard, ginger, chili; enzyme powder such as amylase, protease, lipase; yeast, bifidobacteria, lactic acid bacteria, etc. Useful live bacteria powder: Vitamin B group, vitamin C, water-soluble vitamins such as folic acid, nicotinamide, and vitamin powders such as fat-soluble vitamins such as vitamins A, D, E, and K; spirulina, chlorella, ginseng, ganoderma , Agarisk, maitake, ginkgo biloba, turmeric, blueberry, herbs, psyllium, aloe, tea, pollen, garcinia, gymnema and other plants, algae, mycelium powder; chitin, chitosan, collagen powder; other royal jelly , Propolis, nucleic acid, lecithin, saponin, sterols, carnitine, ceramide, catechin, shark cartilage, heme iron, and the like, powder fragrance, peptide powder, consomme powder, pigment powder, heme iron powder and the like. These may be used alone or in combination of two or more. The average particle diameter of these core materials is not particularly limited, but the average particle diameter of these core materials is not particularly limited, but is usually in the range of 10 μm to 3 mm, preferably 100 μm to 1 mm.

[被覆粉末形成用膜材の用途]
本発明の被覆粉末形成用膜材は、例えばパン、ビスケット、ゼリー等のパン・菓子類;ヨーグルト、ハム等の乳肉加工食品;味噌、ソース、ドレッシング等の調味料;豆腐、麺類の加工食品;カプセル状、タブレット状、顆粒状等にした健康食品等の飲食品や、入浴剤、化粧料などを挙げることができる。
[Applications of coating powder forming film materials]
The film material for forming a coated powder of the present invention includes, for example, bread and confectionery such as bread, biscuits and jelly; processed milk food such as yogurt and ham; seasonings such as miso, sauce and dressing; processed food such as tofu and noodles; Examples include foods and beverages such as health foods in the form of capsules, tablets, granules, bathing agents, cosmetics, and the like.

以下に実施例を挙げて本発明を具体的に説明する。実施例中の配合量は質量基準である。   The present invention will be specifically described below with reference to examples. The compounding quantity in an Example is a mass reference | standard.

<被覆粉末形成用膜材の調整>
表1に示す配合組成で以下の方法により被覆粉末形成用膜材を製造した。
<水相の調整>
温水(80℃)に、乳化剤(B)、水溶性賦形剤(C)を溶解した。
<被覆粉末形成用膜材の製造>
水相を攪拌しながら油脂(A)を投入して、粗乳化液を調整した。この粗乳化液をマントンゴーリン型ホモジナイザーで乳化させ(30MPa)、スプレードライヤーを用いて乾燥を行い(熱風温度150℃、排風温度85℃)、得られた乾燥物を粉砕することで被覆粉末形成用膜材を得た。
<Adjustment of coating powder forming film material>
A film material for forming a coated powder was produced by the following method with the composition shown in Table 1.
<Adjustment of aqueous phase>
The emulsifier (B) and the water-soluble excipient (C) were dissolved in warm water (80 ° C.).
<Manufacture of membrane material for coating powder formation>
While stirring the aqueous phase, the oil (A) was added to prepare a crude emulsion. This crude emulsion is emulsified with a Manton Gorin type homogenizer (30 MPa), dried using a spray dryer (hot air temperature 150 ° C., exhaust air temperature 85 ° C.), and the resulting dried product is pulverized to form a coating powder A membrane material was obtained.

<被覆粉末の形成>
表1に示す配合で製造した被覆粉末形成用膜材10質量部、重曹90質量部を用いて、バーチカルグラニュレーター((株)パウレック製)で20分間処理して被覆粉末を製造した。
<Formation of coating powder>
Using 10 parts by weight of the coating powder forming membrane material and 90 parts by weight of baking soda produced by the formulation shown in Table 1, the coating powder was produced by treating with a vertical granulator (manufactured by POWREC Co., Ltd.) for 20 minutes.

次に、各例における評価法を示す。
(1)固体脂含量(SFC)
上記の被覆粉末形成用膜材の製造に用いられた油脂(A)の固体脂含量を測定した。NMR装置(PRAXIS MODEL SFC−900A)を用いて測定を行った。
(2)示差走査熱量測定の吸熱ピーク
上記の製造例で得られた、被覆粉末形成用膜材について、10℃/分の条件で昇温させて示差走査熱量測定の吸熱ピーク温度を測定した。示差走査熱量測定装置(Thermo plus DSC8230)を用いて測定を行った。
Next, the evaluation method in each example is shown.
(1) Solid fat content (SFC)
The solid fat content of the fat (A) used for the production of the coating powder forming membrane material was measured. Measurement was performed using an NMR apparatus (PRAXIS MODEL SFC-900A).
(2) Endothermic peak of differential scanning calorimetry The temperature of the endothermic peak of differential scanning calorimetry was measured by raising the temperature of the coating powder forming film material obtained in the above production example under the conditions of 10 ° C / min. Measurement was performed using a differential scanning calorimeter (Thermo plus DSC8230).

(3)平均粒子径
上記で得られた被覆粉末形成用膜材を、島津製作所製レーザー回折式粒度分布測定装置(SALD−2100)を用いて粒度を測定し、メディアン径を算出した。
(3) Average particle diameter The particle size of the film material for coating powder formation obtained above was measured using a laser diffraction particle size distribution analyzer (SALD-2100) manufactured by Shimadzu Corporation, and the median diameter was calculated.

(4)加工適性
高速攪拌混合機(バーチカルグラニュレーター((株)パウレック製))を用いて重曹と混合処理を行った。処理後、機械の槽内に油脂の染み出しが認められるか否かを目視にて確認し、以下のとおり評価した。○以上を実用に供することができる合格範囲と判定した。
◎:油脂の染み出しが全くない
○:粉全体がしっとりしてダマが認められるが、槽内に油滴は認められない
×:油脂の染み出しがひどく、槽内に油滴が認められる
(4) Processing suitability Using a high-speed stirring mixer (vertical granulator (manufactured by POWREC Co., Ltd.)), mixing with sodium bicarbonate was performed. After the treatment, it was visually confirmed whether or not oil and fat ooze out in the tank of the machine and evaluated as follows. ○ The above was determined as the acceptable range for practical use.
◎: No oil or fat oozes ○: The whole powder is moist and lumps are observed, but no oil droplets are observed in the tank ×: Fat and oil ooze out severely, and oil droplets are recognized in the tank

(5)被覆・遮断性
上記の被覆粉末の形成で得られた重曹と、クエン酸を質量比で1:1となるようにアルミスティックに充填後、ヒートシールで封をし、温度40℃、湿度75質量%環境下にて90日間保存試験を行った。水埋没法によって、保存前と保存後との体積変化を測定し、被覆・遮断性の評価を行った。被覆・遮断性が悪い場合は、アルミスティック内で重曹とクエン酸が反応し、二酸化炭素が発生するため、アルミスティックの体積変化が大きくなる。
(6)水への分散性
上記で得られた被覆粉末を、水へ添加した際の水面への浮き具合、水への分散具合を図1の如く、目視にて確認し、以下の通り評価した。○を実用に供することができる合格範囲と判定した。
○:水へ完全に分散している
×:水へ全く分散しない
(5) Covering / barrier property After filling the aluminum stick so that the baking soda obtained by forming the above coating powder and citric acid have a mass ratio of 1: 1, it is sealed with a heat seal, and the temperature is 40 ° C. A storage test was conducted for 90 days in a humidity of 75% by mass. The volume change between before and after storage was measured by water immersion method, and the covering and blocking properties were evaluated. When the covering and blocking properties are poor, sodium bicarbonate and citric acid react in the aluminum stick to generate carbon dioxide, and the volume change of the aluminum stick increases.
(6) Dispersibility in water When the coating powder obtained above is added to water, the floating condition on the water surface and the dispersion condition in water are confirmed visually as shown in FIG. 1 and evaluated as follows. did. ○ was determined to be an acceptable range for practical use.
○: Completely dispersed in water ×: Not dispersed in water at all

表1に示す結果から、本発明の被覆粉末形成用膜材を用いた実施例1〜4の被覆粉末は、加工適性、被覆・遮断性、水への分散性の点で優れていることがわかる。油脂(A)の固体脂含量(SFC)が大きい油脂(A)を用いた実施例1、3〜4は、被覆・遮断性でより優れた効果を発揮することがわかった。   From the results shown in Table 1, the coating powders of Examples 1 to 4 using the coating powder forming membrane material of the present invention are excellent in terms of workability, coating / blocking properties, and water dispersibility. Recognize. It was found that Examples 1 and 3 to 4 using the fats and oils (A) having a large solid fat content (SFC) of the fats and oils (A) exhibited more excellent effects in covering and blocking properties.

比較例1、2は、油脂(A)の固体脂含量が20%未満であり、水溶性賦形剤(C)の含有量が22.5質量%未満であり、かつ膜材の吸熱ピークが40℃未満であることから、加工適性や被覆・遮断性に劣ることがわかった。比較例3は、油脂(A)の固体脂含量が20%未満であり、膜材の吸熱ピークが40℃未満であることから、被覆・遮断性が劣ることがわかった。比較例4は水溶性賦形剤(B)、乳化剤(C)を含まない被覆粉末形成用膜材を用いたものであり、被覆粉末の、水に対する分散性が劣ることがわかった。   In Comparative Examples 1 and 2, the solid fat content of the fat (A) is less than 20%, the content of the water-soluble excipient (C) is less than 22.5% by mass, and the endothermic peak of the film material is Since it was less than 40 degreeC, it turned out that it is inferior to workability, covering, and interruption | blocking property. In Comparative Example 3, the solid fat content of the fat (A) was less than 20%, and the endothermic peak of the film material was less than 40 ° C., so it was found that the coating / blocking properties were inferior. Comparative Example 4 uses a film material for forming a coating powder that does not contain a water-soluble excipient (B) and an emulsifier (C), and it was found that the dispersibility of the coating powder in water is poor.

Claims (2)

35℃における固体脂含量が20〜100%、融点が40〜70℃である油脂(A)、乳化剤(B)、および水溶性賦形剤(C)を含有し、油脂(A)の含有量が40〜75質量%、乳化剤(B)の含有量が2.5〜13質量%、および水溶性賦形剤(C)の含有量が22.5〜45質量%であり、示差走査熱量測定の吸熱ピーク温度が40〜70℃、平均粒子径が10〜150μmである粒子状の被覆粉末形成用膜材。   Oil and fat (A), emulsifier (B), and water-soluble excipient (C) having a solid fat content at 35 ° C. of 20 to 100% and a melting point of 40 to 70 ° C. Is 40 to 75% by mass, the content of the emulsifier (B) is 2.5 to 13% by mass, and the content of the water-soluble excipient (C) is 22.5 to 45% by mass. Differential scanning calorimetry An endothermic peak temperature of 40 to 70 ° C. and an average particle diameter of 10 to 150 μm are used as a particulate coating powder forming film material. 請求項1の被覆粉末形成用膜材からなる被覆層を、粉末の表面に有する被覆粉末。

A coated powder having a coating layer comprising the film material for forming a coated powder according to claim 1 on the surface of the powder.

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JP2001017093A (en) * 1999-07-01 2001-01-23 Nof Corp Fat-coated composition and its production
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