JPH0697962B2 - Method for producing highly oil-absorbing porous powder - Google Patents
Method for producing highly oil-absorbing porous powderInfo
- Publication number
- JPH0697962B2 JPH0697962B2 JP60141860A JP14186085A JPH0697962B2 JP H0697962 B2 JPH0697962 B2 JP H0697962B2 JP 60141860 A JP60141860 A JP 60141860A JP 14186085 A JP14186085 A JP 14186085A JP H0697962 B2 JPH0697962 B2 JP H0697962B2
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- starch
- oil
- powder
- weight
- porous powder
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- Grain Derivatives (AREA)
- Edible Oils And Fats (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は澱粉又は穀粉を原料とする高吸油能を有する多
孔質粉体の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a method for producing a porous powder using starch or cereal flour as a raw material and having a high oil absorption ability.
従来から、液体又は半固体の油脂類が食品、化粧品、医
薬品など極めて広い範囲で大量に使用されている。しか
し、液体や半固体は取り扱い上不便であること、また、
種々の製品形態の多様化した粉末製品が要望されるよう
になったことから、液体や半固体の油脂類の粉末化技術
が必要になってきた。BACKGROUND ART Conventionally, liquid or semi-solid fats and oils have been used in large amounts in a very wide range such as foods, cosmetics and pharmaceuticals. However, liquids and semi-solids are inconvenient to handle, and
With the growing demand for diversified powder products in various product forms, there has been a need for a technique for powdering liquid or semi-solid fats and oils.
液体又は半固体の油脂の粉末化法についてはすでにいく
つかの技術が開発されている。例えば、ゼラチンなどを
用いて油脂をカプセル化する方法、又、糖類、デキスト
リン、蛋白質、乳化剤などと共に油脂を乳化後、噴霧乾
燥する方法がよく知られている。しかし、これらの方法
は高価な装置が必要な上、少量多品種の油脂を粉末化す
るには不適当である。Several techniques have already been developed for powdering liquid or semi-solid fats and oils. For example, a method of encapsulating fats and oils using gelatin and the like, and a method of emulsifying the fats and oils with sugars, dextrins, proteins, emulsifiers and the like and then spray-drying are well known. However, these methods require expensive equipment and are not suitable for pulverizing a small amount of various kinds of fats and oils.
一方、澱粉を主成分とし、これを適切な装置と適度な条
件でα化、乾燥、粉砕することにより、吸油性粉体を製
造する方法が知られている。エクストルーダーやドラム
ドライヤーが代表的装置である。しかし、このような方
法によって得られる澱粉は薄片状であり澱粉1g当たり液
体油を2ml程度しか吸収させることができないのが現状
である。又、発泡剤を使用したほとんどα化していない
多孔質澱粉の製造法が知られており、該多孔質澱粉は吸
油性が比較的大きいが、α化が不十分なため食品におい
ては食感が悪くなるし、化粧品などではつぶつぶ感が残
るなどの問題点がある。On the other hand, there is known a method of producing an oil-absorbing powder by using starch as a main component, and gelatinizing, drying and pulverizing the starch with an appropriate device and under appropriate conditions. Extruders and drum dryers are typical devices. However, under the present circumstances, the starch obtained by such a method is flaky and can absorb only about 2 ml of liquid oil per 1 g of starch. Further, a method for producing a non-gelatinized porous starch using a foaming agent is known, and the porous starch has a relatively large oil absorption property, but since the gelatinization is insufficient, it has a texture in food. There is a problem that it becomes worse and that cosmetics have a feeling of being crushed.
以上の現状に鑑み、本発明者らは次の点に注目し研究を
行った。In view of the above-mentioned present conditions, the present inventors paid attention to the following points and conducted research.
（１）高価な装置を必要とせず、混合するだけで極めて
簡便に液体又は半固体状の油脂を粉末化できること。(1) Liquid or semi-solid fats and oils can be powdered very simply by mixing without requiring an expensive device.
（２）吸油能が非常に高いこと（1gの澱粉が少なくとも
3ml以上の液体油を吸油し、なおかつ粉体であるこ
と）。(2) Very high oil absorption (at least 1 g of starch
It must absorb 3 ml or more of liquid oil and be a powder).
（３）澱粉又は澱粉を70重量％以上含有する穀粉を原料
とし、且つ得られた粉体は常温の水で膨潤、水和するこ
と。(3) Starch or cereal flour containing 70% by weight or more of starch is used as a raw material, and the obtained powder is swollen and hydrated with water at room temperature.
これら（１）〜（３）の条件を満たすことにより、簡便
に液体又は半固体状油脂を粉末化でき、かつ食品や化粧
品に用いても問題がない高吸油性能を有する粉体を得る
ことが可能となる。By satisfying these conditions (1) to (3), it is possible to easily obtain a powder having a high oil-absorption capability, which can easily powder a liquid or semi-solid fat and oil and has no problem even when used in foods and cosmetics. It will be possible.
本発明者らは研究の結果、澱粉又は澱粉を70重量％以上
含有する穀粉が、その澱粉質のα化度が80％以上であ
り、ある特定条件の多孔質粉体になるとき、上記三条件
を満たすことを見出し本発明を完成するに至った。As a result of research conducted by the present inventors, when starch or a flour containing 70% by weight or more of starch has a degree of gelatinization of starch of 80% or more and becomes a porous powder under a certain specific condition, the above three The inventors have found that the conditions are satisfied and completed the present invention.
粉体中の澱粉のα化度が80％以上であり、粉体の孔径が
１〜15μｍであり、且つ、比表面積が３〜15m2/gである
高吸油性多孔質粉体を得る方法において、澱粉又は澱粉
を70重量％以上含む穀粉に水又は温水を加え加熱して、
α化度80％以上となるうように澱粉をα化させ、得られ
た澱粉又は穀粉のα化物を−30℃以下の温度で急速凍結
し、続いて、乾燥、粉砕することを特徴とする上記高吸
油性多孔質粉体の製造方法に係わるものである。Method for obtaining highly oil-absorbing porous powder in which the degree of gelatinization of starch in the powder is 80% or more, the pore size of the powder is 1 to 15 μm, and the specific surface area is 3 to 15 m 2 / g In, starch or flour containing 70% by weight or more of starch is heated by adding water or warm water,
It is characterized in that the starch is pregelatinized so that the degree of pregelatinization is 80% or more, and the pregelatinized product of the obtained starch or flour is rapidly frozen at a temperature of -30 ° C or lower, followed by drying and pulverizing. The present invention relates to a method for producing the above highly oil-absorbing porous powder.
本発明における多孔質粉体は、その孔径すなわち孔の直
径が１〜15μｍの範囲内にあることにより高吸油性を示
す。特に３〜10μｍの孔が総孔数中80％以上あることが
望ましい。孔径１μｍ未満では吸油速度が低下するし、
逆に15μｍより大きくなると油脂保持力が低下すると同
時に粉体性が低下する。ただし、製造中に多孔質粉体の
一部が破壊されて15μｍよりも大きい孔径のものが存在
したり、１μｍ未満の孔径のものが存在する場合もある
が、吸油力が低下しない程度に少量ならばその存在はさ
しつかえない。本発明では孔径の測定は走査電子顕微鏡
による直接観察法で求めた。The porous powder in the present invention exhibits a high oil absorption property because the pore diameter, that is, the diameter of the pores, is in the range of 1 to 15 μm. In particular, it is desirable that 80% or more of the total number of pores having a diameter of 3 to 10 μm be present. If the pore size is less than 1 μm, the oil absorption rate will decrease,
On the other hand, when it is larger than 15 μm, the oil and fat holding power is lowered and at the same time the powder property is lowered. However, in some cases, some of the porous powder is destroyed during production and there are pores with a diameter larger than 15 μm, and there are pores with a diameter less than 1 μm. If so, its existence is ok. In the present invention, the pore size was measured by a direct observation method using a scanning electron microscope.
粉体の比表面積は３〜15m2/g、好ましくは５〜13m2/gで
あり、この範囲の比表面積を有するものは高吸油性を示
す。比表面積が3m2/g未満では吸油能は2ml/g以下となる
し、逆に15m2/gより大きい場合は孔径が小さくなり過
ぎ、吸油性が低下する。本発明における比表面積値はオ
ーア式比表面積計により窒素ガスを用いて測定した。The specific surface area of the powder is 3 to 15 m 2 / g, preferably 5 to 13 m 2 / g, and those having a specific surface area within this range exhibit high oil absorption. If the specific surface area is less than 3 m 2 / g, the oil absorption capacity will be 2 ml / g or less, while if it is more than 15 m 2 / g, the pore size will be too small and the oil absorption will be reduced. The specific surface area value in the present invention was measured by using an Oer type specific surface area meter using nitrogen gas.
本発明における「高吸油性の多孔質粉体」とは、澱粉又
は澱粉を70重量％以上含有する穀粉を原料とし、これに
種々の加工を加えて、乾燥、粉砕したもので、吸油能が
3ml/g以上のものを指す。本発明でいう「吸油能」と
は、下記の測定法で得られる値である。The "highly oil-absorbing porous powder" in the present invention is a starch or a flour containing 70% by weight or more of starch as a raw material, subjected to various processes, dried, and pulverized, and has an oil absorption ability.
It means 3ml / g or more. The “oil absorption capacity” in the present invention is a value obtained by the following measuring method.
測定法;105℃で１時間乾燥した吸油性多孔質粉体1gを10
0mlのガラスビーカーにとる。次に該吸油性多孔質粉体
にビューレットから菜種油を滴下しながらガラス棒で撹
拌混合する。粉体が吸油しきれず、滲出した菜種油がビ
ーカー壁に付着し始めた時点における菜種油滴下量（m
l）を吸油能と定義する。操作は全て20℃で行う。Measuring method: 10 g of oil-absorbing porous powder dried at 105 ° C for 1 hour
Take in a 0 ml glass beaker. Next, the rapeseed oil is dripped from the burette into the oil-absorbing porous powder while stirring and mixing with a glass rod. The amount of rapeseed oil dropped (m when the rapeseed oil exuded from the powder could not absorb oil and began to adhere to the beaker wall)
l) is defined as oil absorption capacity. Perform all operations at 20 ° C.
通常の生澱粉類、α化澱粉類、穀粉類では吸油能が0.5m
l/g以下である。一方、本発明による高吸油性多孔質粉
体の吸油能は少なくとも3ml/g以上の値を示す。Ordinary raw starch, pregelatinized starch, and cereal flour have an oil absorption capacity of 0.5 m
l / g or less. On the other hand, the oil absorption capacity of the highly oil-absorbing porous powder according to the present invention shows a value of at least 3 ml / g or more.
本発明の原料として用いる澱粉は食用に供されるすべて
の澱粉であり、具体例を挙げれば、トウモロコシ澱粉、
ジャガイモ澱粉、サツマイモ澱粉、米澱粉、くず澱粉、
サゴ澱粉、タピオカ澱粉などである。又、これらを酵素
や酸で加水分解したデキストリンを用いてもよいが、加
水分解度が高くなるに従い吸油量が低下するのでDE10以
下のものが望ましい。The starch used as the raw material of the present invention is any starch that is used for food, and specific examples include corn starch,
Potato starch, sweet potato starch, rice starch, litter starch,
Examples include sago starch and tapioca starch. Further, dextrin obtained by hydrolyzing these with an enzyme or an acid may be used. However, since the oil absorption decreases as the degree of hydrolysis increases, those having a DE of 10 or less are preferable.
又、澱粉を70重量％以上含有する穀粉類も使用に適して
いる。その例としては小麦粉、大麦粉、米粉、ソバ粉、
トウモロコシ粉などのほか、ジャガイモ粉、サツマイモ
粉などが挙げられる。Also, flours containing 70% by weight or more of starch are suitable for use. Examples include wheat flour, barley flour, rice flour, buckwheat flour,
In addition to corn flour, potato flour, sweet potato flour, etc. may be mentioned.
以上の澱粉又は澱粉を70重量％以上含有する穀粉は、そ
れぞれ単独で用いても良く、また２種以上混合して使用
しても良い。又、吸油能が低下しない範囲で蛋白質、糖
類、多糖類など澱粉以外の食用成分を併用できるが、少
なくとも澱粉を70重量％以上含むことが必要である。The above-mentioned starch or cereal flour containing 70% by weight or more of starch may be used alone or in combination of two or more kinds. Further, edible ingredients other than starch, such as proteins, sugars and polysaccharides, can be used in combination as long as the oil absorption ability is not deteriorated, but it is necessary to contain at least 70% by weight of starch.
澱粉又は澱粉を70重量％以上含む穀粉から高吸油性多孔
質粉体を製造する好適な方法は次の通りである。A preferred method for producing a highly oil-absorbing porous powder from starch or cereal flour containing 70% by weight or more of starch is as follows.
まず、澱粉又は澱粉を70重量％以上含む穀粉に水又は温
水を加え70℃以上に加熱し、澱粉をα化させる。この
時、澱粉のα化度は少なくとも80％以上あることが必要
である。80％未満では十分な吸油量が得られない上に、
食品などに利用したざらつき感が残ることがあり好まし
くない。又、澱粉又は澱粉を70重量％以上含む穀粉に対
する水又は温水量の比は前者５〜20重量部に対して後者
95〜80重量部が好ましい。水又は温水量がこの比率より
大き過ぎても、小さ過ぎても吸油量は低下する。First, water or warm water is added to starch or cereal flour containing 70% by weight or more of starch and heated to 70 ° C. or higher to gelatinize the starch. At this time, the degree of gelatinization of starch must be at least 80% or more. If it is less than 80%, sufficient oil absorption cannot be obtained, and
It is not preferable because it may leave a rough feeling when used for foods. The ratio of water or warm water to starch or cereal flour containing 70% by weight or more of starch is 5 to 20 parts by weight of the former to the latter.
95 to 80 parts by weight is preferred. If the amount of water or hot water is too large or too small, the oil absorption amount will decrease.
次にこうして得た澱粉又は澱粉を70重量％以上含む穀粉
のα化物を急速に凍結する。凍結は−30℃以下の温度で
10分以内に急速完全凍結することが望ましい。又、この
凍結工程では凍結速度を大きくするためにα化物を薄く
のばすか、細い線状にすることが望ましい。凍結方法と
しては、液体窒素、液体空気などの極低温ガスを噴霧
又はこれに浸漬する方法、ブラインに浸漬する方法、
冷却金属板、ガラス板などに接触させる方法、冷却
空気による方法、冷却エタノールに浸漬する方法等が
あり、これら〜の方法を全て使用することができ
る。Next, the starch thus obtained or the gelatinized product of cereal flour containing 70% by weight or more of starch is rapidly frozen. Freezing at temperatures below -30 ° C
Rapid complete freezing within 10 minutes is desirable. Further, in this freezing step, it is desirable that the α-form is thinly spread or formed into a fine linear shape in order to increase the freezing rate. As the freezing method, liquid nitrogen, a method of spraying or immersing a cryogenic gas such as liquid air, a method of immersing in a brine,
There are a method of contacting with a cooling metal plate and a glass plate, a method of using cooling air, a method of immersing in cooling ethanol, and the like, and all of these methods can be used.
続いて、完全凍結した澱粉又は澱粉を70重量％以上含む
穀粉のα化物の乾燥を行う。乾燥処理は凍結したα化物
の氷結晶が融解しない条件で行う必要がある。例えば、
凍結真空乾燥法が代表的な方法として挙げられる。その
他の方法として、−１℃以下の温度下でエタノール脱水
する方法も有効である。上記の凍結真空乾燥や凍結エタ
ノール脱水は澱粉又は澱粉を70重量％以上含む澱粉の水
分含量が15重量％以下になるまでを行う。この後、更に
加熱乾燥、真空乾燥等を行い、水分含量を更に低下させ
ることも可能である。Subsequently, the completely frozen starch or the gelatinized product of the flour containing 70% by weight or more of starch is dried. It is necessary to perform the drying treatment under the condition that the frozen ice crystals of the α-compound do not melt. For example,
A freeze vacuum drying method is a representative method. As another method, a method of dehydrating ethanol at a temperature of -1 ° C or lower is also effective. The above freeze-vacuum drying and frozen ethanol dehydration are performed until the water content of starch or starch containing 70% by weight or more of starch becomes 15% by weight or less. After this, it is also possible to further heat dry, vacuum dry, etc. to further reduce the water content.
このようにして得た乾燥物は粉砕機により粉砕し、篩分
けを行う。乾燥後の粉体の粒度は特に制限されないが、
20〜100メッシュ程度にすることが望ましい。The dried product thus obtained is pulverized by a pulverizer and sieved. The particle size of the powder after drying is not particularly limited,
It is desirable that the mesh size is about 20 to 100 mesh.
本発明の高吸油性多孔質粉体は、従来のそれに比し油脂
類をより多く吸収、保持することができる。ここで言う
「油脂類」とは、液体又は半固体の油脂類全てが含まれ
る。例えば大豆油、コーン油、綿実油、菜種油、パーム
油、ヤシ油、魚油、牛脂、豚脂、鯨油などが例示される
ほか、これらの油脂の水素添加物、エステル交換物、分
別物なども含まれる。The highly oil-absorbing porous powder of the present invention can absorb and retain a larger amount of fats and oils as compared with the conventional ones. The term “oils and fats” as used herein includes all liquids and semi-solids fats and oils. Examples include soybean oil, corn oil, cottonseed oil, rapeseed oil, palm oil, coconut oil, fish oil, beef tallow, lard, whale oil, and the like, and also include hydrogenated products, transesterified products, and fractionated products of these oils and fats. .
又、油脂以外の液状又は半固体状のすべての油溶性物質
も同様に吸収することができる。「油溶性物質」とは、
例えば、油溶性界面活性剤、炭化水素、有機溶剤などで
ある。油溶性界面活性剤としてはモノ不飽和脂肪酸グリ
セリンエステル、炭素数８以下のモノ飽和脂肪酸グリセ
リンエステル、不飽和脂肪酸ソルビタンエステル、ポリ
オキシエチレン不飽和脂肪酸ソルビタンエステル等が挙
げられる。炭化水素としては、流動パラフィン、リモネ
ン等が、有機溶剤としてはプロピレングリコール、エタ
ノール、メタノール等が挙げられる。又、油溶性フレー
バー等にも適用できる。In addition, all liquid- or semi-solid oil-soluble substances other than fats and oils can be similarly absorbed. What is an "oil-soluble substance"?
For example, oil-soluble surfactants, hydrocarbons, organic solvents and the like. Examples of the oil-soluble surfactant include monounsaturated fatty acid glycerin ester, monosaturated fatty acid glycerin ester having 8 or less carbon atoms, unsaturated fatty acid sorbitan ester, polyoxyethylene unsaturated fatty acid sorbitan ester and the like. Examples of the hydrocarbon include liquid paraffin and limonene, and examples of the organic solvent include propylene glycol, ethanol and methanol. It can also be applied to oil-soluble flavors and the like.
実施例１ トウモロコシ澱粉10重量部に対し、水を90重量部加え、
加熱撹拌しながらα化度が90％の澱粉α化物を製造し
た。これをドライアイス−アセトン（約−70℃）で10分
間急速完全凍結し、次に真空凍結乾燥した。次いで、粉
砕機を用い、真空乾燥物を粉砕後、篩分けして30メッシ
ュ通過の高吸油性多孔質粉体を得た。Example 1 90 parts by weight of water was added to 10 parts by weight of corn starch,
While heating and stirring, a starch α-form having a degree of α-formation of 90% was produced. This was flash-freeze-dried for 10 minutes with dry ice-acetone (about -70 ° C) and then vacuum freeze-dried. Then, the vacuum dried product was pulverized using a pulverizer and then sieved to obtain a highly oil-absorbing porous powder having a 30-mesh size.
実施例２ トウモロコシ澱粉10重量部に対し、水を90重量部加え、
加熱撹拌しながらα化度が100％の澱粉α化物を製造し
た。これをドライアイス−アセトン（約−70℃）で急速
凍結し、次に真空凍結乾燥した。次いで、粉砕機を用
い、真空乾燥物を粉砕後、篩分けして30メッシュ通過の
高吸油性多孔質粉体を得た。Example 2 90 parts by weight of water was added to 10 parts by weight of corn starch,
While heating and stirring, a starch α-form having a degree of α-formation of 100% was produced. This was snap frozen with dry ice-acetone (-70 ° C) and then vacuum freeze dried. Then, the vacuum dried product was pulverized using a pulverizer and then sieved to obtain a highly oil-absorbing porous powder having a 30-mesh size.
実施例３ 澱粉含量75％の薄力小麦粉２重量部に対し、水を98重量
部加え、加熱撹拌しながらα化度が98％の小麦粉α化物
を得た。これを液体窒素で急速凍結した後、真空凍結乾
燥を行った。次に、これを粉砕機を用い粉砕し、篩分け
して20メッシュ通過の高吸油性多孔質粉体を得た。Example 3 98 parts by weight of water was added to 2 parts by weight of weak wheat flour having a starch content of 75%, and an α-form of wheat flour with a degree of gelatinization of 98% was obtained with heating and stirring. This was rapidly frozen with liquid nitrogen and then vacuum freeze-dried. Next, this was crushed using a crusher and sieved to obtain a highly oil-absorbing porous powder having 20 meshes.
実施例４ ジャガイモ澱粉５重量部に対し、水を95重量部加え、加
熱撹拌しながらα化度が85％のジャガイモ澱粉α化物を
得た。この澱粉α化物100gをあらかじめドライアイスで
−70℃まで冷却したエタノール1kgに浸漬し、10分間急
速凍結した。急速凍結後、温度を−５℃まで上げ、１時
間撹拌し、脱水した。次いでアルコールを濾過して除
き、更に真空下でエタノールを完全に除去した。最後に
粉砕機を用い粉砕し、篩分けして20メッシュ通過の高吸
油性多孔質粉体を得た。Example 4 To 5 parts by weight of potato starch, 95 parts by weight of water was added, and the mixture was heated and stirred to obtain an α-form of potato starch having a degree of gelatinization of 85%. 100 g of this starch α-form was immersed in 1 kg of ethanol which had been previously cooled to −70 ° C. with dry ice, and rapidly frozen for 10 minutes. After rapid freezing, the temperature was raised to -5 ° C, stirred for 1 hour, and dehydrated. The alcohol was then filtered off and the ethanol was completely removed under vacuum. Finally, it was pulverized using a pulverizer and sieved to obtain a highly oil-absorbing porous powder having a 20-mesh size.
実施例５ ジャガイモ澱粉５重量部に対し、水を95重量部加え、加
熱撹拌しながらα化度100％のジャガイモ澱粉α化物を
得た。この澱粉α化物100gをあらかじめドライアイスで
−70℃まで冷却したエタノール1kgに浸漬し、10分間急
速凍結した。急速凍結後、温度を−５℃まで上昇させ、
１時間撹拌し、脱水した。次いでアルコールを濾過して
除き、更に真空下でエタノールを完全に除去した。最後
に粉砕機を用い粉砕し、篩分けして20メッシュ通過の高
吸油性多孔質粉体を得た。Example 5 95 parts by weight of water was added to 5 parts by weight of potato starch, and the mixture was heated and stirred to obtain an α-form of potato starch having a degree of α-formation of 100%. 100 g of this starch α-form was immersed in 1 kg of ethanol which had been previously cooled to −70 ° C. with dry ice, and rapidly frozen for 10 minutes. After quick freezing, raise the temperature to -5 ° C,
The mixture was stirred for 1 hour and dehydrated. The alcohol was then filtered off and the ethanol was completely removed under vacuum. Finally, it was pulverized using a pulverizer and sieved to obtain a highly oil-absorbing porous powder having a 20-mesh size.
比較例１ トウモロコシ澱粉10重量部に対し、水を90重量部加え、
加熱撹拌しながらα化度が100％の澱粉α化物を製造し
た。これを−20℃フリーザーで30分間緩慢凍結した後、
実施例１と同一の方法で真空凍結乾燥、粉砕、篩分けし
て30メッシュ通過の粉体を得た。Comparative Example 1 90 parts by weight of water was added to 10 parts by weight of corn starch,
While heating and stirring, a starch α-form having a degree of α-formation of 100% was produced. After slowly freezing this in a -20 ° C freezer for 30 minutes,
Vacuum freeze-drying, pulverization and sieving were carried out in the same manner as in Example 1 to obtain a powder of 30 mesh.
比較例２ トウモロコシ澱粉10重量部に対し、水を90重量部加え、
加熱撹拌しながらα化度が30％の澱粉α化物を製造し
た。次に、実施例１と同一の方法で急速凍結、真空凍結
乾燥、粉砕、篩分けして30メッシュ通過の粉体を得た。Comparative Example 2 90 parts by weight of water was added to 10 parts by weight of corn starch,
While heating and stirring, a starch α-form having a degree of α-formation of 30% was produced. Then, in the same manner as in Example 1, rapid freezing, vacuum freeze drying, pulverization and sieving were carried out to obtain a powder of 30 mesh.
この粉体は、電子顕微鏡による観察では粉末表面の一部
にしか孔が認められず（10〜20μｍ）、比表面積が著し
く小さかった。The powder was found to have pores (10 to 20 μm) in only a part of the surface of the powder when observed by an electron microscope, and had a very small specific surface area.
比較例３ トウモロコシ澱粉10重量部に対し、水を90重量部加え、
加熱撹拌しながらα化度が100％の澱粉α化物を製造し
た。これを液体窒素中で急速凍結した。次にこれを真空
凍結乾燥した後、粉砕機を用いて粉砕し、篩分けして30
メッシュ通過の粉体を得た。Comparative Example 3 90 parts by weight of water was added to 10 parts by weight of corn starch,
While heating and stirring, a starch α-form having a degree of α-formation of 100% was produced. It was snap frozen in liquid nitrogen. It is then freeze-dried in a vacuum and then crushed using a crusher and sieved to 30
A powder that passed through the mesh was obtained.
比較例４ 澱粉含量75％の薄力小麦粉１重量部に対し、水を99重量
部加え、加熱撹拌しながらα化度が98％の小麦粉α化物
を得た。これを液体窒素中で急速凍結した後、真空凍結
乾燥を行った。次に、これを粉砕機を用いて粉砕し、篩
分けして20メッシュ通過の粉体を得た。Comparative Example 4 99 parts by weight of water was added to 1 part by weight of low-strength wheat flour having a starch content of 75%, and while heating and stirring, a wheat flour α-form having an α-degree of 98% was obtained. This was rapidly frozen in liquid nitrogen and then vacuum freeze-dried. Next, this was crushed using a crusher and sieved to obtain a powder of 20 mesh.
試験例１ 実施例１〜５及び比較例１〜４で製造した粉体について
吸油能、α化度、孔径、比表面積及び水溶性を測定し
た。測定結果は第１表に示した。又、測定法は次に示す
方法を用いた。Test Example 1 The oil absorption capacity, the degree of alpha formation, the pore size, the specific surface area and the water solubility of the powders produced in Examples 1 to 5 and Comparative Examples 1 to 4 were measured. The measurement results are shown in Table 1. The measuring method used was as follows.
＜吸油能の測定＞ 粉体1gを100mlガラスビーカーにとり、菜種油をビュー
レットで滴下しながら撹拌混合した。吸油しきれずに分
離した油脂がビーカー壁に付着し始めた時点における菜
種油滴下量（ml）を吸油能とした。<Measurement of Oil Absorption Capacity> 1 g of the powder was placed in a 100 ml glass beaker, and rapeseed oil was added dropwise with a burette to stir and mix. The oil absorption capacity was defined as the rapeseed oil drop amount (ml) at the time when the separated oils and fats could not be absorbed completely and began to adhere to the beaker wall.
＜α化度の測定＞ グルコアミラーゼ法を用いた。<Measurement of Degree of Alpha Formation> The glucoamylase method was used.
＜孔径測定＞ 走査型電子顕微鏡（日本電子JSM-840）を用い、金蒸着
した後、観察し、孔の直径を測定した。<Measurement of Pore Diameter> Using a scanning electron microscope (JEOL JSM-840), after vapor deposition of gold, observation was performed to measure the diameter of the hole.
＜比表面積測定＞ 島津製作所製オーア式比表面積計2100D型により、窒素
ガスを用いて測定した。<Measurement of specific surface area> The specific surface area was measured with an Oaur type specific surface area meter 2100D manufactured by Shimadzu Corporation using nitrogen gas.
＜水溶性＞ 粉体1gを100mlの水に加え、撹拌後、水不溶の白色粒子
が残る量を肉眼観察して判定した。<Water-Solubility> 1 g of powder was added to 100 ml of water, and after stirring, the amount of white particles insoluble in water was visually observed and judged.
〔発明の効果〕 本発明の高吸油性多孔質粉体は、吸油性が優れ、食品、
医薬品、化粧品等で使われる液体又は半固体状を有する
油脂類は勿論のこと、炭化水素類、油溶性界面活性剤な
どをも多量に吸収することができる特性を有する。 [Effects of the Invention] The highly oil-absorbing porous powder of the present invention has excellent oil absorbency, food,
It has a property that it can absorb a large amount of hydrocarbons, oil-soluble surfactants, etc., as well as liquid or semi-solid oils and fats used in pharmaceuticals, cosmetics and the like.
従って、本発明品を用いれば、従来取り扱いが不便とさ
れていた油溶性の液状又は半固体状物（油脂など）を、
簡便に粉末化することが可能になる。Therefore, by using the product of the present invention, an oil-soluble liquid or semi-solid substance (oil and fat etc.) which has been conventionally inconvenient to handle,
It becomes possible to powder easily.
Claims (1)
粉体の孔径が１〜15μｍであり、且つ、比表面積が３〜
15m2/gである高吸油性多孔質粉体を得る方法において、
澱粉又は澱粉を70重量％以上含む穀粉に水又は温水を加
え加熱して、α化度80％以上となるように澱粉をα化さ
せ、得られた澱粉又は穀粉のα化物を−30℃以下の温度
で急速凍結し、続いて、乾燥、粉砕することを特徴とす
る上記高吸油性多孔質粉体の製造方法。1. The degree of gelatinization of starch in the powder is 80% or more,
The pore size of the powder is 1 to 15 μm, and the specific surface area is 3 to
In the method of obtaining a highly oil-absorbing porous powder which is 15 m 2 / g,
Water or warm water is added to starch or cereal flour containing 70% by weight or more of starch to pregelatinize the starch so that the degree of pregelatinization becomes 80% or more. The method for producing a highly oil-absorbing porous powder, which comprises rapidly freezing at a temperature of, followed by drying and pulverizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60141860A JPH0697962B2 (en) | 1985-06-28 | 1985-06-28 | Method for producing highly oil-absorbing porous powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60141860A JPH0697962B2 (en) | 1985-06-28 | 1985-06-28 | Method for producing highly oil-absorbing porous powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS623752A JPS623752A (en) | 1987-01-09 |
| JPH0697962B2 true JPH0697962B2 (en) | 1994-12-07 |
Family
ID=15301847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60141860A Expired - Fee Related JPH0697962B2 (en) | 1985-06-28 | 1985-06-28 | Method for producing highly oil-absorbing porous powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0697962B2 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4382347B2 (en) * | 2002-12-27 | 2009-12-09 | 日本ケンタッキー・フライド・チキン株式会社 | Non-fried food clothing and method for producing non-fried food using the same |
| JP5273631B2 (en) | 2004-02-27 | 2013-08-28 | 塩水港精糖株式会社 | Fat solution and / or solid solution of saccharide-fat soluble material, method for producing the same |
| FI120625B (en) * | 2005-08-17 | 2009-12-31 | Valtion Teknillinen | Starch based fiber web filler and coating pigment composition and process for its manufacture |
| US20100330369A1 (en) * | 2008-02-22 | 2010-12-30 | Cargill Incorporated | Pregelatinized starches as carrier materials for liquid components |
| JP6085217B2 (en) * | 2013-04-25 | 2017-02-22 | 上野製薬株式会社 | Powdered oil |
| JP2014236687A (en) * | 2013-06-07 | 2014-12-18 | 茂雄 斎藤 | Powder-type perilla oil |
| US10098833B1 (en) * | 2014-11-24 | 2018-10-16 | Amelia Vaughn | Formulation and method of use |
| JP6855001B2 (en) * | 2016-11-24 | 2021-04-07 | 池田食研株式会社 | Manufacturing method of oil-soluble substance-impregnated food |
| IL258463A (en) * | 2018-03-29 | 2018-06-03 | Strauss Group Ltd | Freeze-dried food products and process of preparing same |
| WO2021084663A1 (en) * | 2019-10-30 | 2021-05-06 | 株式会社日清製粉グループ本社 | Production method for pregelatinized grain flour |
| CN112773928B (en) * | 2021-01-05 | 2021-09-21 | 珠海原妙医学科技股份有限公司 | Starch-based fluffy particles and preparation method and application thereof |
| WO2024029516A1 (en) * | 2022-08-01 | 2024-02-08 | 東和薬品株式会社 | Porous carrier particles, functional component-carried particles, and method for producing porous carrier particles |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5755385A (en) * | 1980-09-20 | 1982-04-02 | Hitachi Ltd | Heat exchanger for cloth dryer with dehumidifying function |
-
1985
- 1985-06-28 JP JP60141860A patent/JPH0697962B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5755385A (en) * | 1980-09-20 | 1982-04-02 | Hitachi Ltd | Heat exchanger for cloth dryer with dehumidifying function |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS623752A (en) | 1987-01-09 |
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