JPS63123415A - Filter for filtering yeast - Google Patents

Filter for filtering yeast

Info

Publication number
JPS63123415A
JPS63123415A JP61266648A JP26664886A JPS63123415A JP S63123415 A JPS63123415 A JP S63123415A JP 61266648 A JP61266648 A JP 61266648A JP 26664886 A JP26664886 A JP 26664886A JP S63123415 A JPS63123415 A JP S63123415A
Authority
JP
Japan
Prior art keywords
yeast
filter
pore diameter
average pore
layer
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
JP61266648A
Other languages
Japanese (ja)
Inventor
Hiroshi Hasegawa
宏 長谷川
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
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 NGK Insulators Ltd filed Critical NGK Insulators Ltd
Priority to JP61266648A priority Critical patent/JPS63123415A/en
Publication of JPS63123415A publication Critical patent/JPS63123415A/en
Pending legal-status Critical Current

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  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
  • Filtering Materials (AREA)

Abstract

PURPOSE:To manufacture a filter to remove yeast only by making the average pore diameter of a fine grain layer of a porous filter in the range from 2mum to 10mum and the thickness of said fine grain layer at least ten times as much as the average pore diameter. CONSTITUTION:The average pore diameter of a fine grain layer 1 of a filter for removing yeast is made 2-10mum, preferably 5-10mum. The thickness of the layer is ten times as much as the average pore diameter of more, preferably 15-500 times as much. The suitable materials of the fine grain layer 1 and a substrate layer 2 are ceramics such as silica, alumina, silica-alumina, mullite, zirconia, carbon, cordierite, SiC and the like. By utilizing said yeast removing filter for filtering yeast solution, protein colloidal substance permeates the filter, and yeast only can be removed completely with minimized pressure loss, making regeneration easy.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、ビール、ワインなどの飲料あるいはしょう油
9食酢などの食品等を生産するに際し、液中に含まれる
酵母を完全に除去し味に関係する蛋白コロイド物質だけ
を直接濾過で透過させるのに使用する酵母除去フィルタ
ーに関するものである。
Detailed Description of the Invention (Industrial Application Field) The present invention completely removes yeast contained in the liquid when producing beverages such as beer and wine, or foods such as soy sauce and vinegar. This invention relates to a yeast removal filter that is used to directly filter out only relevant protein colloid substances.

(従来の技術) 従来、酵母のみを除去し蛋白コロイド物質だけを透過さ
せるための直接濾過方法としては、濾布。
(Prior Art) Conventionally, a filter cloth has been used as a direct filtration method to remove only yeast and allow only protein colloid substances to pass through.

濾紙、有機膜等を用いるだけのノンプレコート濾過法お
よび濾布、濾紙、有機膜、金網、セラミックフィルター
に濾過助剤を担持させて用いるプレコート濾過法が知ら
れている。
A non-precoat filtration method using only filter paper, an organic membrane, etc. and a precoat filtration method using a filter cloth, filter paper, organic membrane, wire mesh, or ceramic filter carrying a filter aid are known.

(発明が解決しようとする問題点) しかしながら、上述した従来の濾過法においては以下の
ような種々の欠点があった。すなわち、ノンプレコート
濾過においては、濾過機構が内部濾過のため目詰まりが
速く濾過速度の低下が大きいと共に目詰まり後は逆洗再
生がほとんど不可能であるばかりでなく、濾過材の強度
が弱く酵母が流出する危険があった。また、プレコート
濾過においては、濾過助剤を用いるといえども濾過機構
が内部濾過であるため、蛋白コロイド物質も濾過材によ
り捕捉されてしまう欠点があった。さらに、濾過助剤層
が振動などに対してはく離しやすく酵母の流出の危険が
あると共に、濾過助剤のランニングコストが高くなる欠
点もあった。
(Problems to be Solved by the Invention) However, the above-mentioned conventional filtration methods have various drawbacks as described below. In other words, in non-precoat filtration, since the filtration mechanism is an internal filtration, clogging occurs quickly and the filtration rate decreases significantly.After clogging, backwashing is almost impossible, and the strength of the filter material is weak and yeast There was a risk of leakage. Furthermore, in precoat filtration, even though a filter aid is used, the filtration mechanism is an internal filtration, so there is a drawback that protein colloid substances are also captured by the filter material. Furthermore, the filter aid layer tends to peel off due to vibrations, etc., posing a risk of yeast leakage, and the running cost of the filter aid increases.

本発明の目的は上述した不具合を解消して、濾過すべき
液中に含まれる酵母のみを完全に除去し、蛋白コロイド
物質だけを直接濾過で透過させるのに好適な酵母除去フ
ィルターを提供しようとするものである。
The purpose of the present invention is to solve the above-mentioned problems and provide a yeast removal filter suitable for completely removing only the yeast contained in the liquid to be filtered and allowing only protein colloid substances to pass through by direct filtration. It is something to do.

(問題点を解決するための手段) 本発明の酵母除去フィルターは、濾過部材として多孔質
フィルターを使用して蛋白コロイド物質と酵母を含むス
ラリー液中の酵母を除去する酵母濾過フィルターにおい
て、前記多孔質フィルターの細粒層の平均細孔径が2μ
m以上10μm以下で、細粒層の層厚がその平均細孔径
の10倍以上であることを特徴とするものである。
(Means for Solving the Problems) The yeast removal filter of the present invention uses a porous filter as a filtration member to remove yeast from a slurry containing a protein colloid substance and yeast. The average pore diameter of the fine particle layer of the quality filter is 2μ
m or more and 10 μm or less, and the thickness of the fine grain layer is 10 times or more the average pore diameter.

(作 用) 上述した構成において、所定の平均細孔径と層厚を有す
る細粒層により、濾過すべき液中のサブミクロンオーダ
ーの蛋白コロイド物質のみを透過させて、数μm以上の
酵母(例えばビール酵母3〜10μm)のみを完全に除
去することができる。また、助剤を使用していないため
、逆洗再生も容易に行なうことができる。
(Function) In the above-mentioned configuration, the fine particle layer having a predetermined average pore diameter and layer thickness allows only submicron-order protein colloid substances in the liquid to be filtered to permeate, and yeasts of several μm or more (e.g. Only brewer's yeast (3-10 μm) can be completely removed. Furthermore, since no auxiliary agent is used, backwashing and regeneration can be performed easily.

なお、本発明において細粒層の平均細孔径を2〜10μ
mと限定した理由は、後述する細粒層の平均細孔径に対
する濾過速度および濾液中の酵母数を示す第1表から明
らかなように、細粒層の平均細孔径が2μ所未満である
と濾過速度が極端に悪化すると共に、10μmを超える
と濾液中に酵母が流出するためである。なお、この平均
細孔径は5〜10μmであるとさらに好ましい。
In addition, in the present invention, the average pore diameter of the fine grain layer is 2 to 10 μm.
The reason why it is limited to m is that, as is clear from Table 1 which shows the filtration rate and the number of yeast in the filtrate with respect to the average pore diameter of the fine grain layer, which will be described later, if the average pore diameter of the fine grain layer is less than 2μ, This is because the filtration rate becomes extremely poor and yeast flows out into the filtrate if the diameter exceeds 10 μm. In addition, this average pore diameter is more preferably 5 to 10 μm.

また、細粒層の層厚については同じく後述する第1表か
ら、層厚が平均細孔径の大きさの10倍以下の薄い場合
には酵母が流出し好ましくないため平均細孔径の10倍
以上と規定したが、あまり厚すぎると酵母は流出しない
がフィルター圧損が大きくなるため、15〜500倍が
好ましい。
Regarding the thickness of the fine grain layer, from Table 1, which will also be described later, if the layer thickness is less than 10 times the average pore diameter, yeast will flow out, which is undesirable, so it is more than 10 times the average pore diameter. However, if it is too thick, the yeast will not flow out, but the filter pressure loss will increase, so it is preferably 15 to 500 times.

(実施例) 第1図(a)、 (blはそれぞれ本発明の酵母濾過フ
ィルターの一実施例を示す部分断面図で、第1図(a)
は細粒層lのみの単層構造の例を、また第1図中)は細
粒層1と支持層2との二層構造の例を示している。これ
らの酵母濾過フィルターにおいては、細粒層1の平均細
孔径は2〜10μm、好ましくは5〜10μmとすると
ともに、その層厚は平均細孔径の10倍以上、好ましく
は15〜500倍となるように、従来公知の方法で作製
している。また、支持N2の平均細孔径は細粒層の平均
細孔径よりも大きい平均細孔径であればよいが、本実施
例では5〜200μm5好ましくは10〜100μmと
なるよう構成している。また、第1図(blに示す二層
構造のフィルターにおける細粒層1はフィルターの内側
または外側のどちらか一方に設けられていればよい。細
粒N1および支持層2の材質としては、シリカ、アルミ
ナ、シリカ−アルミナ、ムライト。
(Example) Fig. 1(a) and (bl are partial cross-sectional views showing an example of the yeast filtration filter of the present invention, respectively; Fig. 1(a)
1 shows an example of a single-layer structure with only a fine-grain layer 1, and FIG. 1) shows an example of a two-layer structure with a fine-grain layer 1 and a support layer 2. In these yeast filtration filters, the average pore diameter of the fine particle layer 1 is 2 to 10 μm, preferably 5 to 10 μm, and the layer thickness is 10 times or more, preferably 15 to 500 times the average pore diameter. It is manufactured using a conventionally known method. Further, the average pore diameter of the support N2 may be larger than the average pore diameter of the fine grain layer, but in this example, it is configured to be 5 to 200 μm, preferably 10 to 100 μm. In addition, the fine grain layer 1 in the two-layer structure filter shown in FIG. 1 (bl) may be provided on either the inside or outside of the filter. , alumina, silica-alumina, mullite.

ジルコニア、カーボン、コージェライト、 SiC等の
セラミックスが好適であるが、これに限定されるもので
はなく本発明で限定した平均細孔径の条件を達成できる
ものであれば例えば焼結金属等も使用できることはいう
までもない。
Ceramics such as zirconia, carbon, cordierite, and SiC are suitable, but the material is not limited thereto, and sintered metals can also be used as long as they can achieve the average pore diameter conditions defined in the present invention. Needless to say.

第2図は上述した二層構造の酵母除去フィルターのうち
内側コート品を使用して直接濾過を行なう方法を説明す
るための線図である。細粒層11と支持JW12とから
構成される本発明の酵母除去フィルターに供給された蛋
白コロイド13と酵母14とを含むスラリー液は、2〜
5 m/HRの速度で除去フィルターを通過する。これ
により、蛋白コロイド13だけが酵母除去フィルターを
通り抜けて濾過液となると共に、酵母14は酵母除去フ
ィルターの細粒層11を通り抜けないため細粒層11の
表面に堆積して、スラリー液を濾過することができる。
FIG. 2 is a diagram for explaining a method of performing direct filtration using the inner coated product of the above-mentioned two-layered yeast removal filter. The slurry liquid containing the protein colloid 13 and yeast 14 supplied to the yeast removal filter of the present invention, which is composed of the fine particle layer 11 and the support JW 12, is
Pass through the removal filter at a speed of 5 m/HR. As a result, only the protein colloid 13 passes through the yeast removal filter and becomes the filtrate, and the yeast 14 does not pass through the fine particle layer 11 of the yeast removal filter, so it is deposited on the surface of the fine particle layer 11, and the slurry liquid is filtered. can do.

また、逆洗再生時には、スラリー液の流れを逆にして逆
洗用の液体を流せば節単に堆積物等を除去することがで
きる。
Furthermore, during backwashing and regeneration, deposits and the like can be easily removed by reversing the flow of the slurry liquid and flowing the backwashing liquid.

以下、実際の例について説明する。An actual example will be explained below.

尖施炎 第1図(b)に示す本発明の二層構造の酵母除去フィル
ターを使用して、酵母濃度100個/ccの生ビール原
液を、入口圧力1 kg/cm”、濾過速度3 m/H
Rの定速濾過を温度20℃で実施して、細粒層の平均細
孔径および厚さに対する濾液中の酵母および蛋白コロイ
ド除去率とフィルター圧損ΔPを測定した。なお、この
ときの酵母除去フィルターとしては内側に細粒層が存在
する内側コート品を使用した。結果を第1表に示す。
Using the two-layered yeast removal filter of the present invention shown in Figure 1(b), a draft beer stock solution with a yeast concentration of 100 cells/cc was filtered at an inlet pressure of 1 kg/cm'' and a filtration speed of 3 m/cc. H
Constant rate filtration of R was carried out at a temperature of 20° C., and the removal rate of yeast and protein colloids in the filtrate and the filter pressure drop ΔP with respect to the average pore diameter and thickness of the fine particle layer were measured. In addition, as the yeast removal filter at this time, an inner-coated product with a fine particle layer present inside was used. The results are shown in Table 1.

第  1  表 第1表の結果から、本発明範囲内の細粒層の平均細孔径
および厚さを有する酵母除去フィルターは、フィルター
圧損ΔPが小さいとともに蛋白コロイドは透過し酵母の
みを100%除去することが可能であり、本発明の目的
を達成できることがわかった。すなわち、細粒層の平均
細孔径が2〜10μmでかつその厚さが平均細孔径の1
0倍以上である酵母除去フィルターが、蛋白コロイドを
完全透過しかつ酵母のみを100%除去することができ
た。
Table 1 From the results shown in Table 1, a yeast removal filter having a fine particle layer with an average pore diameter and thickness within the range of the present invention has a small filter pressure drop ΔP, allows protein colloid to pass through, and removes only yeast by 100%. It has been found that this is possible and that the object of the present invention can be achieved. That is, the average pore diameter of the fine grain layer is 2 to 10 μm, and the thickness is 1 of the average pore diameter.
The yeast removal filter, which is 0 times or more, completely permeated the protein colloid and was able to remove 100% of only the yeast.

なお、細粒層の厚さは平均細孔径の10倍以上であれば
酵母のみを完全に除去することが可能であるが、厚さが
厚くなるほどフィルター圧損も大きくなるため好ましく
は500倍程度までの厚さで使用する必要がある。
If the thickness of the fine particle layer is at least 10 times the average pore diameter, it is possible to completely remove only yeast, but the thicker the thickness, the greater the filter pressure loss, so it is preferably about 500 times the average pore diameter. It must be used at a thickness of

(発明の効果) 以上詳細に説明したところから明らかなように、本発明
の酵母除去フィルターによれば、細粒層の平均細孔径の
大きさの規定と層厚の規定との相乗効果により、蛋白コ
ロイド物質を透過させ酵母のみをスラリー液中から完全
に除去することができ、圧力損失も小さく濾材の再生洗
浄が可能でランニングコストが廉価でかつ高品質の製品
を得ることができる。
(Effects of the Invention) As is clear from the detailed explanation above, according to the yeast removal filter of the present invention, due to the synergistic effect of the regulation of the average pore diameter of the fine particle layer and the regulation of the layer thickness, Only yeast can be completely removed from the slurry by passing through protein colloid substances, pressure loss is small, filter media can be regenerated and washed, and running costs are low and high quality products can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図(a)、 (b)はそれぞれ本発明の酵母濾過フ
ィルターの一実施例を示す部分断面図、 第2図は第1図(b)に示す二層構造の酵母除去フィル
ターを使用して直接濾過を行なう方法を説明するための
線図である。 1.11・・・細粒層    2,12・・・支持層1
3・・・蛋白コロイド   14・・・酵母第1図 (a) (b)
Figures 1(a) and (b) are partial cross-sectional views showing one embodiment of the yeast filtration filter of the present invention, and Figure 2 is a partial cross-sectional view showing an embodiment of the yeast filter of the present invention. FIG. 2 is a diagram for explaining a method of directly performing filtration. 1.11...Fine grain layer 2,12...Support layer 1
3... Protein colloid 14... Yeast Figure 1 (a) (b)

Claims (1)

【特許請求の範囲】 1、濾過部材として多孔質フィルターを使用して蛋白コ
ロイド物質と酵母を含むスラリー液中の酵母を除去する
酵母濾過フィルターにおいて、前記多孔質フィルターの
細粒層の平均細孔径が2μm以上10μm以下で、細粒
層の層厚がその平均細孔径の10倍以上であることを特
徴とする酵母除去フィルター。 2、前記多孔質フィルターが、細粒層と細粒層の平均細
孔径よりも大きい平均細孔径を有する支持層との二層構
造よりなる特許請求の範囲第1項記載の酵母除去フィル
ター。
[Scope of Claims] 1. In a yeast filtration filter that uses a porous filter as a filtration member to remove yeast from a slurry liquid containing a protein colloid substance and yeast, an average pore diameter of a fine particle layer of the porous filter; is 2 μm or more and 10 μm or less, and the layer thickness of the fine particle layer is 10 times or more the average pore diameter. 2. The yeast removal filter according to claim 1, wherein the porous filter has a two-layer structure including a fine particle layer and a support layer having an average pore diameter larger than the average pore diameter of the fine particle layer.
JP61266648A 1986-11-11 1986-11-11 Filter for filtering yeast Pending JPS63123415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61266648A JPS63123415A (en) 1986-11-11 1986-11-11 Filter for filtering yeast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61266648A JPS63123415A (en) 1986-11-11 1986-11-11 Filter for filtering yeast

Publications (1)

Publication Number Publication Date
JPS63123415A true JPS63123415A (en) 1988-05-27

Family

ID=17433750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61266648A Pending JPS63123415A (en) 1986-11-11 1986-11-11 Filter for filtering yeast

Country Status (1)

Country Link
JP (1) JPS63123415A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02180608A (en) * 1989-01-06 1990-07-13 Toshiba Corp Apparatus for treating water produced in cask for use in transportation of used fuel
JPH0523194A (en) * 1991-07-19 1993-02-02 Hitachi Plant Eng & Constr Co Ltd Method for separating protein by membrane
JPH0562930U (en) * 1992-01-31 1993-08-20 日本電気ホームエレクトロニクス株式会社 Switch device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02180608A (en) * 1989-01-06 1990-07-13 Toshiba Corp Apparatus for treating water produced in cask for use in transportation of used fuel
JPH0523194A (en) * 1991-07-19 1993-02-02 Hitachi Plant Eng & Constr Co Ltd Method for separating protein by membrane
JPH0562930U (en) * 1992-01-31 1993-08-20 日本電気ホームエレクトロニクス株式会社 Switch device

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