WO2010110424A1 - リパーゼ粉末組成物の製造方法 - Google Patents
リパーゼ粉末組成物の製造方法 Download PDFInfo
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- WO2010110424A1 WO2010110424A1 PCT/JP2010/055373 JP2010055373W WO2010110424A1 WO 2010110424 A1 WO2010110424 A1 WO 2010110424A1 JP 2010055373 W JP2010055373 W JP 2010055373W WO 2010110424 A1 WO2010110424 A1 WO 2010110424A1
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- oil
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
- C12N11/14—Enzymes or microbial cells immobilised on or in an inorganic carrier
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- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
- C12N11/02—Enzymes or microbial cells immobilised on or in an organic carrier
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- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
- C12N11/02—Enzymes or microbial cells immobilised on or in an organic carrier
- C12N11/10—Enzymes or microbial cells immobilised on or in an organic carrier the carrier being a carbohydrate
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
- C12N11/02—Enzymes or microbial cells immobilised on or in an organic carrier
- C12N11/10—Enzymes or microbial cells immobilised on or in an organic carrier the carrier being a carbohydrate
- C12N11/12—Cellulose or derivatives thereof
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- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/16—Hydrolases (3) acting on ester bonds (3.1)
- C12N9/18—Carboxylic ester hydrolases (3.1.1)
- C12N9/20—Triglyceride splitting, e.g. by means of lipase
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- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/98—Preparation of granular or free-flowing enzyme compositions
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/34—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving hydrolase
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y301/00—Hydrolases acting on ester bonds (3.1)
- C12Y301/01—Carboxylic ester hydrolases (3.1.1)
- C12Y301/01003—Triacylglycerol lipase (3.1.1.3)
Definitions
- the present invention relates to a method for producing a lipase powder composition capable of pulverizing an immobilized lipase while suppressing dust.
- Lipases are widely used in esterification reactions of various carboxylic acids such as fatty acids with alcohols such as monoalcohols and polyhydric alcohols, and transesterification reactions between a plurality of carboxylic acid esters. Of these, transesterification is an important technique for the production of various fatty acid esters, sugar esters and steroids, including the modification of animal and vegetable fats and oils.
- lipase an oil and fat hydrolase, as a catalyst for these reactions
- the transesterification reaction can be carried out under mild conditions of room temperature to about 70 ° C., which suppresses side reactions compared to conventional chemical reactions.
- the lipase as a catalyst is a natural product, so safety is high.
- the target product can be produced efficiently due to its substrate specificity and position specificity.
- a technique for pulverizing and using the immobilized lipase immobilized on a carrier has been developed (Patent Document 1).
- lipase may develop allergic symptoms due to contact with the skin or inhalation by breathing.
- the immobilized lipase powder composition it is necessary to ensure the safety of the operator, for example, a lot of dust is generated in the process of pulverizing the immobilized lipase, and as a result, there is a concern about allergic diseases.
- the present invention provides a method for producing a pulverized product of a lipase powder composition capable of pulverizing an immobilized lipase without generating off-flavors or smoke of the raw material to be pulverized while suppressing generation of dust. Objective.
- the present invention relates to the ratio of the immobilized lipase and the hydrophilic powder in the production of the pulverized product of the lipase powder composition containing the hydrophilic powder such as the immobilized lipase and cellulose, and the oil wetting procedure when performing the wet grinding. It was made based on the knowledge that the above-mentioned problems can be solved by making it specific.
- the present invention is a method for producing a pulverized product of an immobilized lipase in which a lipase derived from Thermomyces is immobilized on a silica carrier and a lipase powder composition containing a hydrophilic powder other than the silica carrier, the hydrophilic powder being A step of infiltrating with oil, a step of separating the hydrophilic powder wetted with oil from the oil to obtain an oil-containing hydrophilic powder, the hydrophilic powder and the immobilization of the oil-containing hydrophilic powder and the immobilized lipase before wetting with oil Providing a production method characterized by comprising a step of mixing at a ratio of 0.45: 1 to 0.85: 1 based on the mass of the modified lipase, and a step of pulverizing the resulting mixture, and performing each step in the order described above To do.
- the present invention is a method for pulverizing an immobilized lipase in which a lipase derived from Thermomyces is immobilized on a silica carrier, and the oil-containing hydrophilic powder obtained by wetting a hydrophilic powder with oil into the immobilized lipase,
- a pulverization method comprising mixing at a ratio of 0.45: 1 to 0.85: 1 based on the mass of a hydrophilic powder and an immobilized lipase before wetting with oil, and pulverizing the mixture.
- the immobilized lipase can be appropriately pulverized without generating a strange odor or smoke of the material to be pulverized while suppressing dust.
- the immobilized lipase used in the present invention is obtained by immobilizing a lipase derived from Thermomyces sp. On a silica carrier.
- the average particle size of the immobilized lipase is preferably about 300 to 1000 ⁇ m.
- Such an immobilized lipase can be obtained as, for example, Lipozyme TL-IM from Novozymes Japan K.K.
- the hydrophilic powder used in the present invention is preferably a powder having a function as a filter aid and a function of suppressing dust, and an inorganic filter aid such as celite and organic filtration such as fibers such as cellulose and pulverized products thereof. Any auxiliary can be preferably used for this purpose.
- organic filter aids particularly organic polymer filter aids are preferable, and cellulose and the like are particularly preferable.
- the cellulose used by this invention is not specifically limited, For example, what is marketed by Nippon Paper Chemical Co., Ltd. by the brand name KC flock etc. can be used.
- Cellulose is also preferably in the form of powder, and preferably has an average particle size of 10 to 90 ⁇ m.
- a hydrophilic powder such as cellulose is first wetted with oil.
- the type of oil is not particularly limited as long as it can wet the lipase and hydrophilic powder used in the present invention to an extent suitable for wet grinding, but edible oil is preferable, for example, rapeseed oil, MCT (medium chain saturated fatty acid triglyceride). , Soybean oil, sunflower oil, safflower oil, corn oil, cottonseed oil, grape seed oil, rice bran oil, and mixtures thereof.
- As the edible oil unrefined oil, deoxidized oil, decolorized oil, dewaxed oil, deodorized oil and the like can be used.
- the ratio (mass) of rapeseed decolorized oil and MCT in the mixture is preferably 5: 1 to 10: 1, for example, about 9: 1.
- the amount of oil relative to the hydrophilic powder can be appropriately determined by those skilled in the art as to the amount by which the hydrophilic powder is evenly mixed with the oil and the hydrophilic powder is wetted.
- the hydrophilic powder can be sufficiently wetted with the oil by adding oil having a mass of 2.4 to 3.0 times, for example, about 2.5 times the weight of the hydrophilic powder.
- the hydrophilic powder wetted with oil as described above is separated from the oil to obtain an oil-containing hydrophilic powder.
- the separation method include filtration and centrifugation, and filtration is preferred.
- the method of filtration is not particularly limited and can be determined by those skilled in the art.
- the degree to which oil is removed by filtration varies depending on the hydrophilic powder used and the type of oil, but the oil content of the oil-containing hydrophilic powder is 1 to 1.4 relative to the mass of the hydrophilic powder before being wetted with oil. By removing the oil to the extent of doubling, appropriate processing can be performed in the subsequent pulverization step.
- the above-mentioned immobilized lipase is added to the oil-containing hydrophilic powder obtained as described above, and the mass of the hydrophilic powder and the immobilized lipase before wetting with oil is 0.45: 1 to 0.85: 1, preferably 0.45: 1 to Mix at a ratio of 0.7: 1, most preferably 0.5: 1.
- it can grind
- the mixture obtained as described above is pulverized using a normal pulverizer.
- a pulverizer a mortar, a shear friction pulverizer, a cutter pulverizer, a stone mill (my colloid, mascoloider), a coffee mill, a power mill, a pin mill, an impact pulverizer (hammer mill, ball mill), a roll type
- a pulverizer a pulverizer
- an airflow pulverizer a homogenizer
- an ultrasonic crusher a pin mill is preferably used among the above.
- a fine impact mill 100UPZ manufactured by Hosokawa Micron Corporation is preferably pulverized at a rotational speed of 10,000 to 12,000 rpm.
- the average particle size of the pulverized immobilized lipase obtained by the above pulverization is, for example, 1 ⁇ m or more and less than 300 ⁇ m, preferably an average particle size of 1 to 200 ⁇ m, more preferably an average particle size of 1 to 100 ⁇ m, particularly The average particle size is preferably 20 to 100 ⁇ m.
- the above pulverization is preferably performed in the presence of dry ice.
- the dry ice is preferably supplied to the pulverizer in a pulverized state in order to efficiently perform the pulverization together with the mixture of the immobilized lipase and the oil-containing hydrophilic powder in the pulverizer.
- the degree of dry ice crushing can vary depending on the type of grinder used. Dry ice may be added at the start of pulverization, but since the pulverization of the mixture of immobilized lipase and oil-containing hydrophilic powder is performed continuously, it is preferably present throughout the pulverization process. Dry ice is appropriately supplied at intervals or continuously.
- the dry ice and the mixture may be mixed in advance and supplied to the pulverizer, but the dry ice and the mixture may be separately supplied to the pulverizer and mixed and pulverized in the pulverizer.
- the amount of dry ice can be appropriately determined by those skilled in the art.
- the amount of dry ice is, for example, 0.5% with respect to the mass of the mixture of cellulose to be crushed (hydrophilic powder) and immobilized lipase. Up to 2 times, preferably about 1 time, dry ice can be added throughout the grinding process.
- the generation of dust during pulverization can be further suppressed by performing the pulverization step in the presence of dry ice as described above.
- the hydrophilic powder in wet-grinding the mixture of immobilized lipase and hydrophilic powder, first, only the hydrophilic powder is wetted with oil, filtered and then mixed with the immobilized lipase in advance. Compared with the case where the mixture of the immobilized lipase and the hydrophilic powder is wetted in oil and then filtered and pulverized, the generation of dust can be appropriately suppressed and pulverization can be appropriately performed.
- Examples 1-2 and Comparative Examples 1-3 (Examination of ratio between hydrophilic powder and immobilized lipase)
- a hydrophilic powder weigh 2500 g of KC Flock w-300G (cellulose powder: manufactured by Nippon Paper Chemical Co., Ltd.) into a stainless steel jug, and add 5580 g of rapeseed decoloring oil (rapeseed oil: manufactured by Nisshin Oillio Group), ODO (medium chain fatty acid) (Triglyceride: Nisshin Oillio Group, Inc.) 620 g of mixed oil was added and stirred well until the cellulose and oil were evenly mixed.
- KC Flock w-300G cellulose powder: manufactured by Nippon Paper Chemical Co., Ltd.
- ODO medium chain fatty acid
- Examples 1 and 2 have better pulverization and better dust generation than Comparative Examples 1 to 3.
- Comparative Examples 4 to 8 (examination of the order of oil wetting) After mixing the hydrophilic powder and the immobilized lipase, pulverization was performed by changing the order so as to wet the oil.
- TL-IM immobilized lipase: manufactured by Novozymes Japan Co., Ltd.
- KC Flock w-300G cellulose powder: manufactured by Nippon Paper Chemicals Co., Ltd.
- rapeseed decoloring oil rapeseed oil: Nissin) Oily Group Co., Ltd.
- ODO Medium chain fatty acid triglyceride: Nisshin Oilio Group Co., Ltd.
- Example 3 Weighing 2000 g of KC Flock w-300G (cellulose powder: Nippon Paper Chemicals Co., Ltd.), 4500 g of rapeseed bleaching oil (rapeseed oil: Nisshin Oillio Group) and ODO (medium chain fatty acid triglyceride: Nisshin Oillio Group) 500 g was added and stirred well, followed by pressure filtration to obtain 4229 g of cellulose cake (oil-containing hydrophilic powder).
- rapeseed bleaching oil rapeseed oil: Nisshin Oillio Group
- ODO medium chain fatty acid triglyceride
- TL-IM immobilized lipase: manufactured by Novozymes Japan Co., Ltd.
- TL-IM immobilized lipase: manufactured by Novozymes Japan Co., Ltd.
- a fine impact mill 100UPZ Pulver: manufactured by Hosokawa Micron Co., Ltd.
- the amount of dust of 4 ⁇ m or less was measured by gravimetric analysis according to the work environment evaluation standard of the Industrial Safety and Health Act. The results are shown in Table-3.
- Example 4 Weighing 2000 g of KC Flock w-300G (cellulose powder: Nippon Paper Chemicals Co., Ltd.), 4500 g of rapeseed bleaching oil (rapeseed oil: Nisshin Oillio Group) and ODO (medium chain fatty acid triglyceride: Nisshin Oillio Group) 500 g was added and stirred well, followed by pressure filtration to obtain 4339 g of a cellulose cake (oil-containing hydrophilic powder).
- rapeseed bleaching oil rapeseed oil: Nisshin Oillio Group
- ODO medium chain fatty acid triglyceride
- the cellulose cake was mixed with 4000 g of TL-IM (immobilized lipase: Novozymes Japan Co., Ltd.), and pulverized at a rotation speed of 10,000-12,000 rpm using a fine impact mill 100 UPZ (Pin mill: Hosokawa Micron Co., Ltd.). .
- the dry ice crushed into powder was intermittently charged into a mixture of cellulose cake and TL-IM continuously pulverized by a fine impact mill 100UPZ at intervals of about 5 minutes, and pulverized with the cellulose cake.
- the amount of dry ice charged at one time was 100 to 130 g.
- the amount of dust of 4 ⁇ m or less was measured by gravimetric analysis according to the work environment evaluation standard of the Industrial Safety and Health Act. The results are shown in Table-3.
- Example 5 Weighing 2000 g of KC Flock w-300G (cellulose powder: Nippon Paper Chemicals Co., Ltd.), 4500 g of rapeseed bleaching oil (rapeseed oil: Nisshin Oillio Group) and ODO (medium chain fatty acid triglyceride: Nisshin Oillio Group) 500 g) was added and stirred well, followed by pressure filtration to obtain 4183 g of cellulose cake (oil-containing hydrophilic powder).
- rapeseed bleaching oil rapeseed oil: Nisshin Oillio Group
- ODO medium chain fatty acid triglyceride: Nisshin Oillio Group
- the cellulose cake was mixed with 4000 g of TL-IM (immobilized lipase: Novozymes Japan Co., Ltd.), and pulverized at a rotation speed of 10,000-12,000 rpm using a fine impact mill 100 UPZ (Pin mill: Hosokawa Micron Co., Ltd.). .
- a total of 8000 g of dry ice pulverized in powder form was continuously charged into a mixture of cellulose cake and TL-IM, which was continuously pulverized by a fine impact mill 100UPZ, and pulverized with the cellulose cake.
- the amount of dust of 4 ⁇ m or less was measured by gravimetric analysis according to the work environment evaluation standard of the Industrial Safety and Health Act. The results are shown in Table-3.
- Comparative Example 9 5000 g of TL-IM (immobilized lipase: manufactured by Novozymes Japan Co., Ltd.) was pulverized using a fine impact mill 100UPZ (Pin mill: manufactured by Hosokawa Micron Co., Ltd.) at a rotational speed of 10,000 to 12,000 rpm.
- the amount of dust of 4 ⁇ m or less at this time was measured by gravimetric analysis according to the work environment evaluation standard of the Industrial Safety and Health Act. The results are shown in Table-3. Table 3 Comparison of dust amount * The smaller the amount of dust, the better.
- Examples 3 to 5 have a smaller amount of dust generated than Comparative Example 9, and are a favorable working environment.
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Abstract
Description
このリパーゼを油性原料中に均一に分散させ、かつエステル交換反応を高い活性で行うために、担体に固定化した固定化リパーゼを粉砕して使用する技術が開発されている(特許文献1)。しかしながら、リパーゼは皮膚への接触や呼吸による吸引によりアレルギー症状を発症することがある。固定化リパーゼ粉末組成物の製造においては、固定化リパーゼを粉砕する工程で粉塵が多く発生し、その結果アレルギー症の懸念があるなど、作業者の安全を確保する必要がある。
すなわち、本発明は、サーモマイセス属由来のリパーゼをシリカ担体に固定化した固定化リパーゼ及びシリカ担体以外の親水性粉末を含有するリパーゼ粉末組成物の粉砕品の製造方法であって、親水性粉末を油で浸潤する工程、油で湿潤した親水性粉末を油から分離して含油親水性粉末を得る工程、前記含油親水性粉末と前記固定化リパーゼを、油に湿潤する前の親水性粉末及び固定化リパーゼの質量を基準として0.45:1~0.85:1の比率で混合する工程、及び得られた混合物を粉砕する工程を含み、かつ上記の順に各工程を行うことを特徴とする製造方法を提供する。
また、本発明は、サーモマイセス属由来のリパーゼをシリカ担体に固定化した固定化リパーゼの粉砕方法であって、親水性粉末を油で湿潤して得た含油親水性粉末を前記固定化リパーゼに、油に湿潤する前の親水性粉末及び固定化リパーゼの質量を基準として0.45:1~0.85:1の比率で混合し、その混合物を粉砕することを特徴とする粉砕方法を提供する。
一方、本発明で用いる親水性粉末とは、ろ過助剤としての機能及び粉塵を抑制する機能を有する粉末が好ましく、セライトなどの無機ろ過助剤及びセルロースなどの繊維やその粉砕物などの有機ろ過助剤であればこの目的のために好ましく使用できる。これのうち、有機ろ過助剤、特に有機高分子ろ過助剤が好ましく、なかでもセルロースなどが好ましい。
本発明で用いるセルロースは特に限定はされず、例えば日本製紙ケミカル株式会社から商品名KCフロックで発売されているもの等を使用することができる。セルロースも粉状であるのが好ましく、平均粒子径10~90μmであるのが好ましい。
また、親水性粉末に対する油の量は、親水性粉末が油と満遍なく混ざって親水性粉末が湿潤する量を当業者が適宜決定することができる。例えば、親水性粉末に対して質量で2.4~3.0倍、例えば2.5倍程度の油を加えることにより、親水性粉末を十分に油で湿潤させることができる。
ドライアイスは粉砕開始時に加えてもよいが、固定化リパーゼと含油親水性粉末の混合物の粉砕は連続的に行われるため、粉砕の工程全体に亘って存在することが好ましく、従って、粉砕の工程中に間隔を空けて、または連続的にドライアイスが適宜供給される。ドライアイスと該混合物は予め混合して粉砕機に供給してもよいが、ドライアイスと該混合物を別々に粉砕機に供給し、粉砕機内で混合・粉砕してもよい。
また、ドライアイスの量は当業者が適宜決定することが可能であり、親水性粉末としてセルロースを使用する場合、粉砕するセルロース(親水性粉末)と固定化リパーゼの混合物の質量に対して例えば0.5~2倍、好ましくは1倍程度のドライアイスを、粉砕の工程全体に亘って添加することができる。
本発明では、上記のように粉砕の工程をドライアイスの存在下で行うことによって、粉砕時の粉塵の発生をさらに抑制することができる。
次に本発明を実施例により詳細に説明する。
親水性粉末としてKCフロックw-300G(セルロースパウダー:日本製紙ケミカル株式会社製)2500gをステンレスジョッキに量り取り、これに菜種脱色油(菜種油:日清オイリオグループ社製)5580g、ODO(中鎖脂肪酸トリグリセリド:日清オイリオグループ社製)620gの混合油を添加し、セルロースと油が満遍なく混ざるまでよく攪拌した。その後、加圧ろ過を行い混合油を除去し、セルロースケーキ(含油親水性粉末)5250gを得た。
表-1に示した配合でセルロースケーキとTL-IM(固定化リパーゼ:ノボザイムズジャパン株式会社製)をビニール袋を用い混合し、ファインインパクトミル100UPZ(ピンミル:ホソカワミクロン株式会社製)を用い回転数10,000~12,000rpmにて粉砕を行い粉砕状況および粉塵を観察し比較を行った。結果を表-1に示す。
親水性粉末と固定化リパーゼを混合した後に油湿潤を行うように順番を変えて粉砕を行った。
TL-IM(固定化リパーゼ:ノボザイムズジャパン株式会社製)をステンレスジョッキに量り取り、そこにKCフロックw-300G(セルロースパウダー:日本製紙ケミカル株式会社製)および菜種脱色油(菜種油:日清オイリオグループ社製):ODO(中鎖脂肪酸トリグリセリド:日清オイリオグループ社製)=9:1の混合油を表-2に示す割合で混合し、よく攪拌した。その後加圧ろ過を行い混合油を除去し、セルロースと酵素の混合ケーキを得た。ファインインパクトミル100UPZ(ピンミル:ホソカワミクロン株式会社製)を用い回転数10,000~12,000rpmにて粉砕を行なったときの状態を比較した。結果を表-2に示す。
KCフロックw-300G(セルロースパウダー:日本製紙ケミカル株式会社製)2000gを量り取り、そこに菜種脱色油(菜種油:日清オイリオグループ株式会社製)4500gおよびODO(中鎖脂肪酸トリグリセリド:日清オイリオグループ社製)500gを加えよく攪拌後、加圧ろ過を行なってセルロースケーキ(含油親水性粉末)4229gを得た。セルロースケーキにTL-IM(固定化リパーゼ:ノボザイムズジャパン株式会社製)4000gを混ぜ合わせ、ファインインパクトミル100UPZ(ピンミル:ホソカワミクロン株式会社製)を用い回転数10,000~12,000rpmにて粉砕を行い、4μm以下の粉塵量を労働安全衛生法の作業環境評価基準に則り重量分析法にて測定した。結果を表-3に示す。
KCフロックw-300G(セルロースパウダー:日本製紙ケミカル株式会社製)2000gを量り取り、そこに菜種脱色油(菜種油:日清オイリオグループ株式会社製)4500gおよびODO(中鎖脂肪酸トリグリセリド:日清オイリオグループ社製)500gを加えよく攪拌後、加圧ろ過を行ってセルロースケーキ(含油親水性粉末)4339gを得た。セルロースケーキにTL-IM(固定化リパーゼ:ノボザイムズジャパン株式会社製)4000gを混ぜ合わせ、ファインインパクトミル100UPZ(ピンミル:ホソカワミクロン株式会社製)を用い回転数10,000~12,000rpmにて粉砕を行った。粉末状に砕いたドライアイスをおよそ5分間隔で連続的にファインインパクトミル100UPZで粉砕されるセルロースケーキとTL-IMの混合物へ間欠投入し、セルロースケーキとともに粉砕した。また一回のドライアイス投入量は100~130gであった。4μm以下の粉塵量を労働安全衛生法の作業環境評価基準に則り重量分析法にて測定した。結果を表-3に示す。
KCフロックw-300G(セルロースパウダー:日本製紙ケミカル株式会社製)2000gを量り取り、そこに菜種脱色油(菜種油:日清オイリオグループ株式会社製)4500gおよびODO(中鎖脂肪酸トリグリセリド:日清オイリオグループ社製)500gを加えよく攪拌後、加圧ろ過を行なってセルロースケーキ(含油親水性粉末)4183gを得た。セルロースケーキにTL-IM(固定化リパーゼ:ノボザイムズジャパン株式会社製)4000gを混ぜ合わせ、ファインインパクトミル100UPZ(ピンミル:ホソカワミクロン株式会社製)を用い回転数10,000~12,000rpmにて粉砕を行った。連続的にファインインパクトミル100UPZで粉砕されるセルロースケーキとTL-IMの混合物へ粉末状に砕いたドライアイス合計8000gを連続的に投入し、セルロースケーキとともに粉砕した。4μm以下の粉塵量を労働安全衛生法の作業環境評価基準に則り重量分析法にて測定した。結果を表-3に示す。
TL-IM(固定化リパーゼ:ノボザイムズジャパン株式会社製)5000gをファインインパクトミル100UPZ(ピンミル:ホソカワミクロン株式会社製)を用い回転数10,000~12,000rpmにて粉砕を行なった。この時の4μm以下粉塵量を労働安全衛生法の作業環境評価基準に則り重量分析法にて測定した。結果を表-3に示す。
表-3 粉塵量の比較
※粉塵量は少ないほど良好である。
Claims (6)
- サーモマイセス属由来のリパーゼをシリカ担体に固定化した固定化リパーゼ及びシリカ担体以外の親水性粉末を含有するリパーゼ粉末組成物の粉砕品の製造方法であって、親水性粉末を油で浸潤する工程、油で湿潤した親水性粉末を油から分離して含油親水性粉末を得る工程、前記含油親水性粉末と前記固定化リパーゼを、油に湿潤する前の親水性粉末及び固定化リパーゼの質量を基準として0.45:1~0.85:1の比率で混合する工程、及び得られた混合物を粉砕する工程を含み、かつ上記の順に各工程を行うことを特徴とする製造方法。
- 含油親水性粉末の含油量が、油に湿潤させる前の親水性粉末の質量に対して1~1.4倍である、請求項1記載の製造方法。
- 粉砕の工程をドライアイスの存在下で行うことを特徴とする、請求項1又は2記載の製造方法。
- 親水性粉末がセルロースである、請求項1~3のいずれか1項記載の製造方法。
- 粉砕された固定化リパーゼの平均粒子径が1μm以上で300μm未満である、請求項1~4のいずれか1項記載の製造方法。
- サーモマイセス属由来のリパーゼをシリカ担体に固定化した固定化リパーゼの粉砕方法であって、親水性粉末を油で湿潤して得た含油親水性粉末を前記固定化リパーゼに、油に湿潤する前の親水性粉末及び固定化リパーゼの質量を基準として0.45:1~0.85:1の比率で混合し、その混合物を粉砕することを特徴とする粉砕方法。
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| US13/260,142 US8911980B2 (en) | 2009-03-27 | 2010-03-26 | Method for producing lipase powder compositions |
| CN201080023308.8A CN102449146B (zh) | 2009-03-27 | 2010-03-26 | 脂肪酶粉末组合物的制造方法 |
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| TW201038733A (en) | 2010-11-01 |
| TWI504745B (zh) | 2015-10-21 |
| US20120021483A1 (en) | 2012-01-26 |
| CN102449146B (zh) | 2014-06-18 |
| US8911980B2 (en) | 2014-12-16 |
| CN102449146A (zh) | 2012-05-09 |
| MY159455A (en) | 2017-01-13 |
| JP2010227005A (ja) | 2010-10-14 |
| KR20120009457A (ko) | 2012-02-01 |
| JP5494913B2 (ja) | 2014-05-21 |
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