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JPH04108341A - Method for improving blood plasma - Google Patents

Method for improving blood plasma

Info

Publication number
JPH04108341A
JPH04108341A JP2224266A JP22426690A JPH04108341A JP H04108341 A JPH04108341 A JP H04108341A JP 2224266 A JP2224266 A JP 2224266A JP 22426690 A JP22426690 A JP 22426690A JP H04108341 A JPH04108341 A JP H04108341A
Authority
JP
Japan
Prior art keywords
plasma
protein
adsorbent
concentration
adjusted
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.)
Pending
Application number
JP2224266A
Other languages
Japanese (ja)
Inventor
Koichi Misawa
孝一 三澤
Shuji Saito
斉藤 修司
Takashi Haneki
貴志 羽木
Noriaki Kadota
門田 則昭
Yoshiro Toda
戸田 義郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tosoh Corp
Taiyo Kagaku KK
Original Assignee
Tosoh Corp
Taiyo Kagaku KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tosoh Corp, Taiyo Kagaku KK filed Critical Tosoh Corp
Priority to JP2224266A priority Critical patent/JPH04108341A/en
Publication of JPH04108341A publication Critical patent/JPH04108341A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To obtain a plasma protein containing little ill-odor and coloring substances using an industrially suitable process in high recovery by contacting a plasma with an adsorbent under specific condition. CONSTITUTION:Blood plasma having improved quality can be prepared by contacting plasma with an adsorbent (e.g. activated carbon, silica get, alginic acid or polyacrylic acid) at a protein concentration of 2-5%, a liquid temperature of 20-30 deg.C and pH 3-5. The obtained improved plasma solution is returned to neutral pH condition or concentrated as necessary.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、血漿の改良方法に関するものである。[Detailed description of the invention] (Industrial application field) The present invention relates to a method for improving plasma.

(従来の技術) 血液は遠心分離することにより、血球成分と血漿成分に
分けられる。この血漿成分は加熱するとゲル化するとい
う特性を持っているので、ハム、ソーセージなどの食品
添加物として利用されている。
(Prior Art) Blood is separated into blood cell components and plasma components by centrifugation. This plasma component has the property of turning into a gel when heated, so it is used as a food additive for foods such as ham and sausage.

従来、血漿は遠心分離した後、チルドの状態で使用され
たり、そのままスプレードライなどの方法で乾燥して使
用されている。しかし、産業的に通常利用されている血
漿は、加熱してゲル化させると、得られるゲルが着色し
ていたり、異臭がするという問題点があり、そのため利
用が限られている。
Conventionally, plasma has been centrifuged and then used in a chilled state, or directly dried by a method such as spray drying. However, plasma that is commonly used industrially has the problem that when it is heated to gel, the resulting gel is colored and has a strange odor, which limits its use.

そこで血漿の用途を広げるために、異臭及び着色の原因
物質を除去する方法が期待されている。
Therefore, in order to expand the uses of plasma, a method for removing substances that cause off-odor and coloration is expected.

(発明が解決しようとする課題) 本発明の目的は、簡単な操作により、異臭及び着色物質
の少ない血漿由来の蛋白質を、回収率良く、濾過速度が
早く、吸着剤の除去効率を向上し、工業的有利に生産す
ることができる処理方法を提供することにある。
(Problems to be Solved by the Invention) The purpose of the present invention is to obtain plasma-derived proteins with low off-odor and colored substances through simple operations, with a high recovery rate, a fast filtration rate, and an improved adsorbent removal efficiency. It is an object of the present invention to provide a processing method that allows industrially advantageous production.

(課題を解決するための手段) 本発明者らはすでに血漿の改良方法について検討を行い
特許出願している(特願昭83−290107、特願昭
63−290108 、特願昭83−312963 、
特願平l−38293、特願平1−38294 、特願
平1−70502、特願平1−70503 、特願平1
−151538、特願平1−216020)。
(Means for Solving the Problems) The present inventors have already studied and applied for patents on a method for improving plasma (Japanese Patent Application No. 83-290107, Japanese Patent Application No. 63-290108, Japanese Patent Application No. 83-312963,
Japanese Patent Application No. 1-38293, Japanese Patent Application No. 1-38294, Japanese Patent Application No. 1-70502, Japanese Patent Application No. 1-70503, Japanese Patent No. 1-1
-151538, patent application No. 1-216020).

しかし工業的に生産することに関しては血漿蛋白質の回
収率が悪い、濾過速度が遅い、吸着剤の除去効率を向上
させなければならないといった課題が残されていた。
However, when it comes to industrial production, there remain problems such as poor recovery of plasma proteins, slow filtration rate, and the need to improve the removal efficiency of the adsorbent.

本発明者らは、さらに鋭意検討した結果、血漿を特定の
蛋白質濃度、特定の液温、特定のpHに調整し、吸着剤
を用いて処理することにより工業的に適した血漿蛋白質
を得ることを見い出だし、本発明を完成するに至った。
As a result of further intensive studies, the present inventors have found that industrially suitable plasma proteins can be obtained by adjusting plasma to a specific protein concentration, specific liquid temperature, and specific pH, and treating it with an adsorbent. They discovered this and completed the present invention.

すなわち本発明は、血漿を、蛋白質濃度が2〜5%、液
温か20〜30℃、p113〜5の条件下、吸着剤と接
触させ、血漿の改良を行うことを特徴とする血漿の改良
方法である。以下、本発明の詳細な説明する。
That is, the present invention provides a method for improving plasma, which is characterized in that the plasma is improved by contacting the plasma with an adsorbent under conditions of a protein concentration of 2 to 5%, a liquid temperature of 20 to 30°C, and a p113 to 5 condition. It is. The present invention will be explained in detail below.

本発明に使用する血漿は動物の血液より得られたものを
使用する。このとき溶血等により血球成分が血漿中に含
まれていても、−向に差し支えない。
The plasma used in the present invention is obtained from animal blood. At this time, even if blood cell components are contained in the plasma due to hemolysis or the like, there is no problem in the negative direction.

血漿中の蛋白質濃度については、血漿溶液を水等により
希釈し、蛋白質濃度2〜5%、好ましくは3〜4%に調
整し、吸着剤を用いて処理する。
Regarding the protein concentration in plasma, the plasma solution is diluted with water or the like to adjust the protein concentration to 2 to 5%, preferably 3 to 4%, and then treated using an adsorbent.

それは、通常、産業的に作られる血漿の蛋白質濃度は6
〜8%程度であり、その濃度のまま吸着剤を用いて処理
すると濃度が高すぎるため、蛋白質が変性しやすく、用
いた吸着剤の濾別が非常に困難になり、吸着剤の除去効
率や蛋白回収率か悪くなるからである。従って蛋白質濃
度の上限は59゜である。一方、蛋白質濃度が低すぎる
と処理効率が悪いため、その下限は2%である。
The protein concentration of industrially produced plasma is usually 6
The concentration is about ~8%, and if treated with an adsorbent at that concentration, the concentration will be too high, and the protein will easily denature, making it extremely difficult to filter out the adsorbent used, and reducing the removal efficiency of the adsorbent. This is because the protein recovery rate will be poor. Therefore, the upper limit of protein concentration is 59°. On the other hand, if the protein concentration is too low, the processing efficiency will be poor, so the lower limit is 2%.

処理温度については、血漿中に含まれているアルブミン
が熱変性せず、かつ、ヘモグロビンが変性しやすい温度
、即ち20〜30℃で処理する。通常、雑菌の増殖や、
蛋白質の変性を防ぐために4℃程度の低温で処理するこ
とが多いが、それてはヘモグロビンの除去効率が悪いか
らである。
Regarding the treatment temperature, the treatment is performed at a temperature at which albumin contained in plasma is not thermally denatured and hemoglobin is easily denatured, that is, 20 to 30°C. Usually, the growth of bacteria,
In order to prevent protein denaturation, processing is often carried out at a low temperature of about 4°C, but this is because hemoglobin removal efficiency is low.

plについては3〜5で処理する。それは、ヘモグロビ
ンの除去効率かよく、雑菌の増殖も防げるからである。
Regarding pl, process 3 to 5. This is because it has high hemoglobin removal efficiency and prevents the growth of bacteria.

pn調整には、塩酸、燐酸、酢酸など、得られた血漿を
食品添加物として使用する場合を考慮して、食品製造工
程上使用が認められているものを用いることが望ましい
For pn adjustment, it is desirable to use hydrochloric acid, phosphoric acid, acetic acid, etc. that are approved for use in food manufacturing processes, considering the use of the obtained plasma as a food additive.

次にここで用いられる吸着剤としては、例えば活性炭、
コロイド珪酸(例えば、シリカゲル、軽質無水珪酸、酸
性白土)、パーライト、ラジオライト、けいそう土等が
あげられ、その使用量は血漿の接触時間や蛋白質回収率
との兼ね合いによるが、約0.5〜30%好ましくは、
5〜20%である。
Next, as the adsorbent used here, for example, activated carbon,
Examples include colloidal silicic acid (e.g. silica gel, light anhydrous silicic acid, acid clay), perlite, radiolite, diatomaceous earth, etc. The amount used depends on the balance with plasma contact time and protein recovery rate, but is approximately 0.5 ~30% preferably
It is 5-20%.

また吸着剤としてカルボキシル基を有する高分子電解質
(例えば、アルギン酸、アルギン酸ナトリウム、ポリア
クリル酸、ポリアクリル酸ナトリウム、カルボキシメチ
ルセルロース)なども用いられ、その使用量は約0.0
01〜0.2%である。吸着剤は2種以上組み合わせて
用いることもできる。
Polymer electrolytes having carboxyl groups (e.g., alginic acid, sodium alginate, polyacrylic acid, sodium polyacrylate, carboxymethylcellulose) are also used as adsorbents, and the amount used is approximately 0.0
01-0.2%. Two or more kinds of adsorbents can also be used in combination.

血漿との接触のさせ方には特に限定はなく、バッチ法、
カラム法いずれの方法も使用できる。
There are no particular restrictions on the method of contact with plasma; batch methods,
Any column method can be used.

以上のようにして得られた改良血漿溶液は、必要に応じ
てpHを中性領域に戻したり、濃縮したりすれば良い。
The improved plasma solution obtained as described above may be returned to a neutral pH range or concentrated as necessary.

(発明の効果) 本発明の方法で処理することにより、異臭及び着色物質
の少ない血漿蛋白質を、工業的に適した方法で回収率良
く得ることかできる。即ち本発明方法によればヘモグロ
ビン濃度が約0.040未満で、悪臭及び着色物質の少
ない改良血漿を、蛋白質回収率が約85%以上と高い回
収率で得ることができる。
(Effects of the Invention) By processing according to the method of the present invention, plasma proteins with less off-odor and colored substances can be obtained with a high recovery rate by an industrially suitable method. That is, according to the method of the present invention, improved plasma having a hemoglobin concentration of less than about 0.040 and less malodor and colored substances can be obtained with a high protein recovery rate of about 85% or more.

(実施例) 以下実施例により本発明を更に詳細に説明するが、本発
明はこれらの実施例のみに限定されるものではない。
(Examples) The present invention will be explained in more detail with reference to Examples below, but the present invention is not limited to these Examples.

各実施例において、蛋白質含量はビュウレット試薬で定
量し、又、ヘモグロビン含量は410 nmのヘミンの
吸光度をnj定することにより求めた。又、蛋白質中の
ヘモグロビン濃度は、ヘミン吸光度(A)と蛋白質濃度
(mg/ml、  (B))との比(A)/ (B)と
して表した。
In each Example, the protein content was determined using Biuret's reagent, and the hemoglobin content was determined by determining the absorbance of hemin at 410 nm. Further, the hemoglobin concentration in the protein was expressed as the ratio (A)/(B) of the hemin absorbance (A) and the protein concentration (mg/ml, (B)).

実施例1.2、比較例1〜13 豚の血液を遠心分離して血漿を得た後、その血漿を膜濃
縮や水道水で希釈することにより、各濃度の豚血漿(蛋
白質u m 1fli90% 119ci % 896
.59o129o)を調整した。
Example 1.2, Comparative Examples 1 to 13 After centrifuging pig blood to obtain plasma, the plasma was membrane concentrated or diluted with tap water to obtain pig plasma of various concentrations (protein um 1fli 90%). 119ci% 896
.. 59o129o) were adjusted.

上記のように調整したサンプルの液温を、5℃、15℃
、25℃に調整した後、それぞれのサンプルの蛋白質量
に対して活性炭を20重量%、アルギン酸ナトリウムを
0.2重−%加えた後、塩酸を加えることによりpHを
4に調整した。そのままの状態で、5時間攪拌した後、
加えた活性炭や沈澱物を濾別除去した。得られた溶液に
水酸化ナトリウムを加えることによりpHを7に調整し
た。このようにして得られたおのおののサンプルの処理
前、処理後の上滑の蛋白質量及びヘモグロビン量を測定
した。
The liquid temperature of the sample adjusted as above was adjusted to 5°C and 15°C.
After adjusting the temperature to 25° C., 20% by weight of activated carbon and 0.2% by weight of sodium alginate were added to the protein amount of each sample, and the pH was adjusted to 4 by adding hydrochloric acid. After stirring for 5 hours,
The added activated carbon and precipitate were removed by filtration. The pH was adjusted to 7 by adding sodium hydroxide to the resulting solution. The amount of protein and hemoglobin in the upper layer of each sample thus obtained was measured before and after treatment.

又、処理前の蛋白質量を100%として、処理後の蛋白
回収率を求めた。その結果を表1にまとめた。
In addition, the protein recovery rate after treatment was determined by setting the amount of protein before treatment as 100%. The results are summarized in Table 1.

表1から明らかなように、実施例では蛋白回収率も良く
、ヘモグロン濃度も低値の改良血漿が得られた。
As is clear from Table 1, improved plasma with good protein recovery and low hemoglone concentration was obtained in the Examples.

実施例3,4、比較例14〜16 豚の血液を遠心分離して血漿を得た後、その血漿を膜濃
縮や水道水で希釈することにより、各濃度の豚血漿(蛋
白質a m 1696.119o、 89o、59o1
29o)を調整した。
Examples 3 and 4, Comparative Examples 14 to 16 Pig blood was centrifuged to obtain plasma, and then the plasma was membrane concentrated or diluted with tap water to obtain various concentrations of pig plasma (protein am 1696. 119o, 89o, 59o1
29o) was adjusted.

上記のように調整したサンプル500 mlに塩酸を加
えることによりpI(を4に調整し、活性炭209oを
加え、25℃で室温で3時間攪拌した。沈澱物を濾別す
るためにフィルターペーパー(直径12.5cm)でブ
フナー濾過を行った。サンプル500m1の濾過終了ま
でに要する時間を比較した。結果を表2に示す。表2か
ら明らかなように、実施例では濾過時間が短く、操作が
簡便であった。
The pI (pI) was adjusted to 4 by adding hydrochloric acid to 500 ml of the sample prepared as above, activated carbon 209° was added, and the mixture was stirred at 25°C and room temperature for 3 hours. Buchner filtration was performed using a filter with a diameter of 12.5 cm.The time required to complete the filtration of 500 ml of sample was compared.The results are shown in Table 2.As is clear from Table 2, the filtration time was short in the example, and the operation was simple. Met.

実施例5,6、比較例17 豚の血液を遠心分離して血漿(比較例17)を得た後、
その血漿を0.01%アルギン酸ナトリウム溶液で蛋白
質濃度4%(実施例5)、2%(実施例6)に調整した
Examples 5 and 6, Comparative Example 17 After centrifuging pig blood to obtain plasma (Comparative Example 17),
The plasma was adjusted to a protein concentration of 4% (Example 5) and 2% (Example 6) with a 0.01% sodium alginate solution.

上記のように調整したサンプルの液温を、25℃に調整
した後、それぞれのサンプルの蛋白質量に対して活性炭
を30重量96加えた後、塩酸を加えることによりpH
を4に調整した。そのままの状態で、5時間攪拌した後
、加えた活性炭や沈澱物を濾別除去した。得られた溶液
に水酸化ナトリウムを加えることによりpHを7に調整
した。このようにして得られたおのおののサンプルの処
理前、処理後の上滑の蛋白質量及びヘモグロビン量を測
定した。
After adjusting the liquid temperature of the samples adjusted as above to 25℃, activated carbon was added at 30% by weight based on the protein amount of each sample, and then the pH was adjusted by adding hydrochloric acid.
was adjusted to 4. After stirring as it was for 5 hours, the added activated carbon and precipitate were removed by filtration. The pH was adjusted to 7 by adding sodium hydroxide to the resulting solution. The amount of protein and hemoglobin in the upper layer of each sample thus obtained was measured before and after treatment.

又、処理前の蛋白質量を100%として、処理後の蛋白
回収率を求めた。その結果を表3にまとめた。
In addition, the protein recovery rate after treatment was determined by setting the amount of protein before treatment as 100%. The results are summarized in Table 3.

表3から明らかなように、実施例では蛋白回収率も良く
、ヘモグロン濃度も低値の改良血漿が得られた。
As is clear from Table 3, in the Examples, improved plasma with good protein recovery and low hemoglone concentration was obtained.

Claims (1)

【特許請求の範囲】[Claims] 血漿を、蛋白質濃度が2〜5%、液温が20〜30℃、
pH3〜5の条件下、吸着剤と接触させ、血漿の改良を
行うことを特徴とする血漿の改良方法。
Plasma has a protein concentration of 2 to 5%, a liquid temperature of 20 to 30°C,
A method for improving plasma, which comprises improving plasma by bringing it into contact with an adsorbent under conditions of pH 3 to 5.
JP2224266A 1990-08-28 1990-08-28 Method for improving blood plasma Pending JPH04108341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2224266A JPH04108341A (en) 1990-08-28 1990-08-28 Method for improving blood plasma

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2224266A JPH04108341A (en) 1990-08-28 1990-08-28 Method for improving blood plasma

Publications (1)

Publication Number Publication Date
JPH04108341A true JPH04108341A (en) 1992-04-09

Family

ID=16811085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2224266A Pending JPH04108341A (en) 1990-08-28 1990-08-28 Method for improving blood plasma

Country Status (1)

Country Link
JP (1) JPH04108341A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000504569A (en) * 1996-02-09 2000-04-18 ソシエテ デ プロデユイ ネツスル ソシエテ アノニム Ice crystal growth inhibitor
US7495416B2 (en) 2003-11-14 2009-02-24 Sony Corporation Battery pack, battery protection processing apparatus, and startup control method of the battery protection processing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000504569A (en) * 1996-02-09 2000-04-18 ソシエテ デ プロデユイ ネツスル ソシエテ アノニム Ice crystal growth inhibitor
US7495416B2 (en) 2003-11-14 2009-02-24 Sony Corporation Battery pack, battery protection processing apparatus, and startup control method of the battery protection processing apparatus

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