JPS59120638A - Homogenization of microcrystalline cellulose suspension - Google Patents
Homogenization of microcrystalline cellulose suspensionInfo
- Publication number
- JPS59120638A JPS59120638A JP57234642A JP23464282A JPS59120638A JP S59120638 A JPS59120638 A JP S59120638A JP 57234642 A JP57234642 A JP 57234642A JP 23464282 A JP23464282 A JP 23464282A JP S59120638 A JPS59120638 A JP S59120638A
- Authority
- JP
- Japan
- Prior art keywords
- suspension
- microcrystalline cellulose
- pressure
- solid content
- orifice
- 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
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 67
- 229920000168 Microcrystalline cellulose Polymers 0.000 title claims abstract description 48
- 235000019813 microcrystalline cellulose Nutrition 0.000 title claims abstract description 48
- 239000008108 microcrystalline cellulose Substances 0.000 title claims abstract description 48
- 229940016286 microcrystalline cellulose Drugs 0.000 title claims abstract description 48
- 238000000265 homogenisation Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims description 12
- 239000007787 solid Substances 0.000 abstract description 17
- 230000009471 action Effects 0.000 abstract description 4
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 3
- 235000010980 cellulose Nutrition 0.000 abstract description 3
- 229920002678 cellulose Polymers 0.000 abstract description 3
- 239000001913 cellulose Substances 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract description 3
- 229920000742 Cotton Polymers 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000006185 dispersion Substances 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 238000009775 high-speed stirring Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- 229920003169 water-soluble polymer Polymers 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 240000003550 Eusideroxylon zwageri Species 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000011950 custard Nutrition 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 235000015243 ice cream Nutrition 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 235000011962 puddings Nutrition 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/44—Mixers in which the components are pressed through slits
- B01F25/441—Mixers in which the components are pressed through slits characterised by the configuration of the surfaces forming the slits
- B01F25/4412—Mixers in which the components are pressed through slits characterised by the configuration of the surfaces forming the slits the slits being formed between opposed planar surfaces, e.g. pushed again each other by springs
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Jellies, Jams, And Syrups (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- General Preparation And Processing Of Foods (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は水媒体中に懸濁している微結晶セルロースをさ
らに均質化することにより極めて態濁安定性にすぐれた
微結晶セルロース懸濁液を製造する方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a microcrystalline cellulose suspension with extremely excellent suspension stability by further homogenizing microcrystalline cellulose suspended in an aqueous medium. .
木材パルプあるいはコットンリンターのようなセルロー
ス原料を酸で処理して非晶部分を除去し、結晶部分の微
粒子を取得したものが微結晶セルロースである。微結晶
セルロースは粉末状で、主として薬品錠剤の賦形剤とし
て使用されている（特公昭４０−２６２７４）。また、
ソフトクリーム、カスタードプリン、シロップ、フライ
の衣、ドレッシング、ソース等の食品への添加について
も多くの出願があるが、これらは微結晶セルロースを水
に添加し、攪拌して得られる懸濁液が示す増粘性、分散
安定性、ゲル形成性などの効果を利用したものである（
例えば、特開昭５６−４５１７０）。しかし、微結晶セ
ルロースがそのような効果を示すためにはかなり高濃度
で使用する必要があり、添加量が多くなると微結晶セル
ロースのきめの粗さのために舌ざわりが悪くなる傾向が
ある。Microcrystalline cellulose is obtained by treating cellulose raw materials such as wood pulp or cotton linters with acid to remove the amorphous portion and obtain fine particles of the crystalline portion. Microcrystalline cellulose is in powder form and is mainly used as an excipient for pharmaceutical tablets (Japanese Patent Publication No. 40-26274). Also,
There are many applications for adding microcrystalline cellulose to foods such as soft serve ice cream, custard pudding, syrup, fried batter, dressing, and sauce. It takes advantage of the effects of thickening, dispersion stability, and gel-forming properties (
For example, JP-A-56-45170). However, in order for microcrystalline cellulose to exhibit such an effect, it must be used at a fairly high concentration, and when the amount added is large, the texture of microcrystalline cellulose tends to be poor due to its coarse texture.
上記の欠点を改善するため、特に食品用途向に水溶性高
分子を添加した微結晶セルロースが製造されている（例
えば、特開昭５４−１５７８７５）。In order to improve the above-mentioned drawbacks, microcrystalline cellulose to which a water-soluble polymer is added has been produced especially for food applications (for example, Japanese Patent Application Laid-Open No. 157875/1983).
しかしながら、その微粉末は吸湿性が高かったり、水に
分散させた状態では腐敗しやすかったり、粘性が加熱に
よって低下したりする問題がある。However, the fine powder has problems in that it is highly hygroscopic, is easily putrefied when dispersed in water, and its viscosity decreases when heated.
本発明者等は安定性、均質性にすぐれたセルロースの水
懸濁体について研究した結果、微結晶セルロースを水中
で特殊な方法で均質化することにより、非常に低い固形
分濃度でも安定な分散性と高い粘性を示す懸濁液を得る
ことに成功した。As a result of research into aqueous suspensions of cellulose with excellent stability and homogeneity, the present inventors found that by homogenizing microcrystalline cellulose in water using a special method, stable dispersion was achieved even at extremely low solid content concentrations. We succeeded in obtaining a suspension exhibiting high properties and high viscosity.
すなわち、本発明は微結晶セルロースの懸濁液を小径オ
リフィスを通過させるに際し、その懸濁液に少なくとも
２００ｋｇ／ｃｍ２の圧力差で高速度を与え、次にこれ
を衝突させて急速に減速することにより剪断および切断
作用を行なわせる工程と、この工程を繰り返して微結晶
セルロース懸濁液が実質的に安定な懸濁液となるように
する工程とからなる微結晶セルロース懸濁液の均質化方
法に関するものである。That is, the present invention provides a method for passing a suspension of microcrystalline cellulose through a small-diameter orifice, applying a high velocity to the suspension with a pressure difference of at least 200 kg/cm2, and then colliding with the suspension to rapidly decelerate the suspension. A method for homogenizing a microcrystalline cellulose suspension, comprising the steps of applying shearing and cutting action to the microcrystalline cellulose suspension, and repeating this step until the microcrystalline cellulose suspension becomes a substantially stable suspension. It is related to.
本発明の実施に好適な均質化装置は乳製品業者などで広
く使われているエマルジョンおよび分散体製造用の高圧
用均質化装置である。この種の均質化装置とその作動機
構についてはよく知られており、例えばＣｈｅｍｉｃａ
ｌ Ｅｎｇｉｎｅｅｒｉｎｇ １３（５）８６−９２（
１９７４）にも記載されている。Homogenizers suitable for carrying out the present invention are high-pressure homogenizers for producing emulsions and dispersions, which are widely used in dairy industries and the like. Homogenizers of this type and their operating mechanisms are well known, e.g.
l Engineering 13(5)86-92(
1974).
均質化装置については図面を参照して、その概要を説明
する。この種装置では低粘性懸濁液にエネルギーを加え
て狭い場所から高速で流出させるようになっている。こ
の装置の心臓部は高圧ポンプの放出端に装置されている
均質化装置の弁装置と弁座装置である。第１図に代表的
な弁装置を示してある。弁装置１に懸濁液を矢印で示す
ように流入させる。この液の流入場所では懸濁液は高圧
下にあるが、低速度の状態である。この液が弁４と弁座
２間の狭い間隙に形成された小径オリフィス３中に進入
するにつれ圧力の作動により、その速度は２００ｍ／秒
まで急速に加速される。オリフィス３の入口側と出口側
との間で圧力は降下する。懸濁液が弁４と弁座２の間か
ら出てくるときにオリフィスを取り囲んでいる衝突リン
グ５に衝突し、その高速度は減速される。An outline of the homogenizing device will be explained with reference to the drawings. This type of device applies energy to a low-viscosity suspension to force it to flow out of a narrow space at high speed. The heart of this device is the valve system and valve seat system of the homogenizer, which is installed at the discharge end of the high-pressure pump. A typical valve device is shown in FIG. The suspension is allowed to flow into the valve device 1 as indicated by the arrow. At this point of entry, the suspension is under high pressure but at low velocity. As this liquid enters the small diameter orifice 3 formed in the narrow gap between the valve 4 and the valve seat 2, its velocity is rapidly accelerated to 200 m/s by pressure action. The pressure drops between the inlet and outlet sides of the orifice 3. As the suspension emerges from between the valve 4 and the valve seat 2, it hits the impingement ring 5 surrounding the orifice and its high velocity is reduced.
本発明の実施に際しては、微結晶セルロース粉末は勿論
、あるいは微結晶セルロース製造工程中酸加水分解後、
酸を中和除去した段階の水湿微結晶セルロースを用いる
ことができる。均質懸濁液製造時における微結晶セルロ
ース分散量は重量百分率で量大１５％であり、好ましく
は約１〜１０％の範囲である。In carrying out the present invention, microcrystalline cellulose powder is of course used, or after acid hydrolysis during the microcrystalline cellulose production process,
Wet microcrystalline cellulose that has been neutralized and removed from the acid can be used. The amount of microcrystalline cellulose dispersed in the homogeneous suspension is approximately 15% by weight, preferably in the range of about 1 to 10%.
この懸濁液を前記均質化装置に導入して少なくとも２０
０ｋｇ／ｃｍ２、好ましくは３５０〜５６０ｋｇ／ｃｍ
２の圧力を加える。その後、この懸濁液は均質化装置を
何回も通過させることでゲル状の安定な懸濁液となる。This suspension was introduced into the homogenizer for at least 20 min.
0kg/cm2, preferably 350-560kg/cm
Apply 2 pressure. This suspension is then passed through a homogenizer many times to form a stable gel-like suspension.
懸濁液の温度は、それが均質化装置内を通過するにつれ
上昇する。均質化装置通過の際の圧力の降下と温度上昇
の相互作用が本発明による安定な微結晶セルロースのゲ
ル状懸濁液を生成させるのに必要であると考えられる。The temperature of the suspension increases as it passes through the homogenizer. It is believed that the interplay of pressure drop and temperature rise during passage through the homogenizer is necessary to produce a stable gel-like suspension of microcrystalline cellulose according to the present invention.
本発明の説明にあたり、懸濁液の安定量および粘度は具
体的には次の測定方法によって得た数値を用いる。In explaining the present invention, the stable amount and viscosity of the suspension are specifically determined by the following measuring method.
（１）安定量；微結晶セルロースのゲル状懸濁液を水で
稀釈して０．５重量％の分散液を調製する。(1) Stable amount: A gel suspension of microcrystalline cellulose is diluted with water to prepare a 0.5% by weight dispersion.
これを１００ｍｌのメスシリンダーに入れ室温で１時間
放置した後に生ずる透明な上澄液量をＡｍｌとしたとき
な安定量は１００−Ａで定■される値である。When this is placed in a 100 ml measuring cylinder and allowed to stand at room temperature for 1 hour, the amount of transparent supernatant liquid produced is defined as Aml, and the stable amount is determined by 100-A.
（２）粘度；Ｂ型（ブルックフィールド型）粘度計を用
い、２５℃で測定し、ローター回転数６０ｒｐｍでの測
定値を示す。(2) Viscosity: Measured at 25°C using a B-type (Brookfield type) viscometer, and the measured value is shown at a rotor rotation speed of 60 rpm.
なお、安定量は固形分濃度が高いほど高い値が得られる
が、本発明に云う実質的安定な懸濁液とは上記の方法で
測定した０．５重量％懸濁液の１００−Ａが６０以上で
あり、２重量％懸濁液の粘度が３００ｃｐｓ以上の値を
有するものを指す。Note that the higher the solid content concentration, the higher the stable amount obtained, but a substantially stable suspension as referred to in the present invention is defined as a 0.5% suspension of 100-A measured by the above method. 60 or more, and the viscosity of a 2% by weight suspension is 300 cps or more.
本発明によって得られる均質化された微結晶セルロース
懸濁液は比較的低濃度でも分散安定作用、増粘作用を有
し、粒子が滑らかであるため食品添加用などに好適であ
る。The homogenized microcrystalline cellulose suspension obtained by the present invention has a dispersion stabilizing effect and a thickening effect even at a relatively low concentration, and has smooth particles, so it is suitable for use as food additive.
以下に実施例をあげて本発明を説明する。The present invention will be explained below with reference to Examples.
実施例１．
木材パルプ（針葉樹材、サルファイト法、α−セルロー
ス含量９４％）１０ｋｇを０．５％塩酸水溶液７０ｌに
分散させ、これをグラスライニングした加圧釜に仕込ん
だ。これを１２０〜１３０℃（１．５〜２．０ｋｇ／ｃ
ｍ２Ｇ）で１時間加水分解処理し冷却した後、塩酸をア
ンモニア水溶液で中和した。次いで塩化物イオンが検出
されなくなるまで水洗を繰り返し、ディスクリファイナ
ーで磨砕した後、噴霧乾燥機で乾燥し、微粉末状の微結
晶セルロースを得た。Example 1. 10 kg of wood pulp (softwood wood, sulfite method, α-cellulose content 94%) was dispersed in 70 liters of a 0.5% hydrochloric acid aqueous solution, and this was placed in a glass-lined pressure cooker. This is heated to 120-130℃ (1.5-2.0kg/c
After hydrolysis treatment with m2G) for 1 hour and cooling, the hydrochloric acid was neutralized with an ammonia aqueous solution. Next, washing with water was repeated until chloride ions were no longer detected, and after grinding with a disc refiner, drying was performed with a spray dryer to obtain microcrystalline cellulose in the form of a fine powder.
この微結晶セルロース４０ｇを水２ｌに分散させ、２重
量％の微結晶セルロース懸濁液を調製した。これをＧａ
ｕｌｉｎ均質化装置（１５Ｍ−８ＴＡ）に常温（約２５
℃）で仕込み、５６０ｋｇ／ｃｍ２の圧力で２０回通過
せた。懸濁液は通過回数が増すにつれて粘稠なゲル状に
なってくる。２０回通過時点で液温は９４℃となり、懸
濁液の状態は安定なゲル状態であった。このものの安定
量は１００（０．５重量％固形分濃度）であり、粘度は
５８０ｃｐｓ（２重量％固形分濃度）であった。40 g of this microcrystalline cellulose was dispersed in 2 liters of water to prepare a 2% by weight microcrystalline cellulose suspension. Ga this
Place the ulin homogenizer (15M-8TA) at room temperature (approx.
℃) and passed 20 times at a pressure of 560 kg/cm2. As the number of passes increases, the suspension becomes more viscous and gel-like. At the time of 20 passes, the liquid temperature was 94°C, and the suspension was in a stable gel state. The stable amount of this product was 100 (0.5% solids concentration), and the viscosity was 580 cps (2% solids concentration).
実施例２〜４．
均質化装置通過回数と生成物の特性の関連を把握するた
めの実験を行なった。実施例１と全く同様の実験を行な
い、通過回数だけを５、１０、１５回と変化させた。得
られたゲル状微結晶セルロース懸濁液の特性を第１表に
示す。Examples 2-4. An experiment was conducted to understand the relationship between the number of passes through the homogenizer and the characteristics of the product. An experiment was conducted in exactly the same manner as in Example 1, except that the number of passes was changed to 5, 10, and 15 times. Table 1 shows the properties of the gel-like microcrystalline cellulose suspension obtained.
実施例５．
均質化装置通過時の懸濁液温度の影響をみるための実験
を行なった。Example 5. An experiment was conducted to examine the influence of suspension temperature when passing through a homogenizer.
実施例１で用いたと同じ微結晶セルロース４０ｇを水２
ｌに分散させた懸濁液を調製し、これを８０℃に加熱し
た。これを均質化装置に仕込み、５６０ｋｇｃｍ２の圧
力で３回通過させた。40g of the same microcrystalline cellulose used in Example 1 was added to 22g of water.
A suspension was prepared and heated to 80°C. This was placed in a homogenizer and passed through it three times at a pressure of 560 kgcm2.
３回通過終了時点で液温は８２℃であり、安定なゲル状
の微結晶セルロース懸濁液が得られた。At the end of three passes, the liquid temperature was 82°C, and a stable gel-like microcrystalline cellulose suspension was obtained.
これの安定量および粘度を測定したところ、それぞれ１
００および６１０ｃｐｓの値を得た。When we measured the stable amount and viscosity of this, we found that each
Values of 00 and 610 cps were obtained.
この結果から懸濁液スラリー予め加熱しておくことで、
粘度、手ざわり（滑らかさ）等の点で、より少ない通過
回数ですむことが確認された。From this result, by preheating the suspension slurry,
It was confirmed that fewer passes were required in terms of viscosity, texture (smoothness), etc.
実施例６〜９．
均質化装置通過時の懸濁液固形分濃度の影響をみるため
の実験を行なった。実施例１〜４と同じ微結晶セルロー
スを用い、同様の手順で実験を行なった。ただ、懸濁液
固形分濃度を６重量％とした。即ち、微結晶セルロース
１２０ｇを水２０ｌに分散させた。実験の条件と得られ
たゲル状の微結晶セルロース懸濁液の特性を第２表に示
す。Examples 6-9. An experiment was conducted to examine the influence of the suspension solid content concentration when passing through a homogenizer. Experiments were conducted using the same microcrystalline cellulose as in Examples 1 to 4 and following the same procedure. However, the solid content concentration of the suspension was 6% by weight. That is, 120 g of microcrystalline cellulose was dispersed in 20 liters of water. Table 2 shows the experimental conditions and the properties of the gel-like microcrystalline cellulose suspension obtained.
比較例１〜６
通常の高速攪拌下で微結晶セルロースと水の混合物を処
理した時、どの程度の固形分濃度で粘稠ゲル状液を与え
るか実験を行なった。Comparative Examples 1 to 6 An experiment was conducted to determine at what solid content concentration a viscous gel-like liquid can be obtained when a mixture of microcrystalline cellulose and water is treated under normal high-speed stirring.
各固形分濃度になるよう微結晶セルロースと水との混合
物をホモミキサーを用い、１０，０００ｒｐｍで５分間
処理した（日本薬局方に準拠）。A mixture of microcrystalline cellulose and water was treated using a homomixer at 10,000 rpm for 5 minutes to achieve each solid concentration (based on the Japanese Pharmacopoeia).
実施例と同様に得られた懸濁液の安定量および粘度を測
定した。結果を第３表に示す。The stable amount and viscosity of the obtained suspension were measured in the same manner as in Examples. The results are shown in Table 3.
本表から判るように、ゲル状の懸濁液を与えるためには
固形分濃度が１５〜２０重量％以上必要である。また、
安定量はいずれも低い値を示しており、稀薄懸濁値にし
たとき、分散安定性は全くないといってもよい。さらに
ゲル状物の指で感じる滑らかさは先述の実施例に比べる
といずれも劣っていた。As can be seen from this table, in order to provide a gel-like suspension, the solid content concentration must be 15 to 20% by weight or more. Also,
All of the stable amounts showed low values, and it can be said that there is no dispersion stability at all when the dilute suspension value is used. Furthermore, the smoothness felt by the fingers of the gel-like material was inferior to that of the previous examples.
実施例で得た均質化微結晶セルロース懸濁液と比較例で
得た通常の攪拌方法で分散させた微結晶セルロース懸濁
液の固形分濃度〜粘度の関係を第２図に示す。図から本
発明によって得た懸濁液の増粘性が大きいことがよくわ
かる。FIG. 2 shows the relationship between solid content concentration and viscosity of the homogenized microcrystalline cellulose suspension obtained in the Examples and the microcrystalline cellulose suspension dispersed by a conventional stirring method obtained in the Comparative Example. It can be clearly seen from the figure that the suspension obtained by the present invention has a large thickening property.
比較例７
微結晶セルロースには水溶性高分子でコーティングした
ものが特に食用品グレードとして市販されている。水溶
性高分子の添加により懸濁安定性が改良されており、コ
ロイダルグレードと称する。コロイダルグレードの微結
晶セルロースを比較例１〜６と同じ方法により、高速攪
拌下水中に分散させ懸濁液を作成した。Comparative Example 7 Microcrystalline cellulose coated with a water-soluble polymer is commercially available, especially as food grade. Suspension stability has been improved by the addition of water-soluble polymers and is called a colloidal grade. Colloidal grade microcrystalline cellulose was dispersed in water under high speed stirring to create a suspension in the same manner as in Comparative Examples 1 to 6.
上記懸濁液、比較例１〜６で得た微結晶セルロース懸濁
液および実施例で得た均質化懸濁液のそれぞれの固形分
濃度とそれぞれの試料の当該濃度での安定性（それぞれ
の固形分濃度の懸濁液を１００ｍｌのメスシリンダーに
入れ、室温で１時間放置した後に生ずる透明な上澄み液
量をＡｍｌとしたとき（１００−Ａ）ｍｌで表わす）を
測定した結果を第３図に示す。この結果から本発明の懸
濁液が極めて低い固形分濃度でも高い安定性を示すもの
であることがわかる。コロイダルグレードの微結晶セル
ロースは純粋の微結晶セルロースよりも安定性が高いが
、本発明の方法によって得た製品に比べると低い値を示
した。The solid content concentration of the above suspension, the microcrystalline cellulose suspension obtained in Comparative Examples 1 to 6, and the homogenized suspension obtained in Example, and the stability of each sample at the relevant concentration (each Figure 3 shows the results of measuring the amount of clear supernatant liquid (expressed in Aml) (100-A) when a suspension with a solid content concentration is placed in a 100ml graduated cylinder and left at room temperature for 1 hour. Shown below. This result shows that the suspension of the present invention exhibits high stability even at extremely low solid content concentrations. Colloidal grade microcrystalline cellulose showed higher stability than pure microcrystalline cellulose, but lower values compared to the product obtained by the method of the invention.
第１図は本発明を実施するのに用いた均質化装置の概略
断面図およびその要部拡大図である。
１、弁装置、２、弁座、３、小径オリフィス４、弁、５
、衝突オリフィス
第２図は微結晶セルロース懸濁液の固形分濃度と粘度の
関係を示す。
Ｉ、本発明の方法を用いた均質化懸濁液ＩＩ、通常の高
速攪拌による懸濁液
第３図は微結晶セルロース懸濁液の固形分濃度と安定性
の関係を示す。
ＩＩＩ、本発明の方法を用いた均質化混濁液ＩＶ、コロ
イダルグレード微結晶セルロースの高速攪拌懸濁液
Ｖ、一般グレード微結晶セルロースの高速攪拌懸濁液
第２図
嗜（町ン旬し巧≦礎−丁１１４１りづう；Ｍ 度（Ｎ°
〕。）ｆ：）３図FIG. 1 is a schematic cross-sectional view and an enlarged view of the essential parts of a homogenizing device used to carry out the present invention. 1. Valve device, 2. Valve seat, 3. Small diameter orifice 4. Valve, 5
, Collision Orifice Figure 2 shows the relationship between solid content concentration and viscosity of a microcrystalline cellulose suspension. I. Suspension homogenized using the method of the present invention II. Suspension prepared by conventional high-speed stirring FIG. 3 shows the relationship between solid content concentration and stability of microcrystalline cellulose suspensions. III. Homogenized suspension using the method of the present invention IV, Highly stirred suspension of colloidal grade microcrystalline cellulose V, Highly stirred suspension of general grade microcrystalline cellulose Figure 2 Foundation - 1141 Rizu; M degree (N°
]. )f:)3 figure
Claims (1)
るに際し、その懸濁液に少なくとも２００ｋｇ／ｃｍ２
の圧力差で高速度を与え、次にこれを衝突させて急速に
減速させることにより、剪断および切断作用を行なわせ
る工程と前記工程を繰り返して前記微結晶セルロースが
実質的に安定な懸濁液となるようにする工程とからなる
微結晶セルロース懸濁液の均質化方法。When passing a suspension of microcrystalline cellulose through a small diameter orifice, the suspension contains at least 200 kg/cm2.
A step of applying a high velocity with a pressure difference of A method for homogenizing a microcrystalline cellulose suspension, comprising the steps of:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57234642A JPS59120638A (en) | 1982-12-25 | 1982-12-25 | Homogenization of microcrystalline cellulose suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57234642A JPS59120638A (en) | 1982-12-25 | 1982-12-25 | Homogenization of microcrystalline cellulose suspension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59120638A true JPS59120638A (en) | 1984-07-12 |
| JPS6230220B2 JPS6230220B2 (en) | 1987-07-01 |
Family
ID=16974220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57234642A Granted JPS59120638A (en) | 1982-12-25 | 1982-12-25 | Homogenization of microcrystalline cellulose suspension |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59120638A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5269470A (en) * | 1991-10-01 | 1993-12-14 | Oji Paper Co., Ltd. | Method of producing finely divided fibrous cellulose particles |
| JP2012525448A (en) * | 2009-05-01 | 2012-10-22 | エフピーイノベイションズ | Control of the iridescent wavelength of nanocrystalline cellulose films |
| US10883226B2 (en) | 2016-02-03 | 2021-01-05 | Kemira Oyj | Process for producing microfibrillated cellulose and a product thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56100801A (en) * | 1979-12-26 | 1981-08-13 | Itt | Microfibrous cellulose and its manufacture |
| JPS57105148A (en) * | 1980-10-31 | 1982-06-30 | Itt | Production of food containing fine fibrous cellulose |
-
1982
- 1982-12-25 JP JP57234642A patent/JPS59120638A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56100801A (en) * | 1979-12-26 | 1981-08-13 | Itt | Microfibrous cellulose and its manufacture |
| JPS57105148A (en) * | 1980-10-31 | 1982-06-30 | Itt | Production of food containing fine fibrous cellulose |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5269470A (en) * | 1991-10-01 | 1993-12-14 | Oji Paper Co., Ltd. | Method of producing finely divided fibrous cellulose particles |
| JP2012525448A (en) * | 2009-05-01 | 2012-10-22 | エフピーイノベイションズ | Control of the iridescent wavelength of nanocrystalline cellulose films |
| US10883226B2 (en) | 2016-02-03 | 2021-01-05 | Kemira Oyj | Process for producing microfibrillated cellulose and a product thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6230220B2 (en) | 1987-07-01 |
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