JP5080828B2 - 固定化酵素を用いた有用物質の製造方法 - Google Patents
固定化酵素を用いた有用物質の製造方法 Download PDFInfo
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Enzymes And Modification Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Description
上の点から好ましい。
かくすることにより、2液相の液体混合物(反応液)の酵素塔内の流れが均一になる。
DuoliteA−568(Rohm and Hass社製、粒径分布100〜1000μm)1重量部をN/10のNaOH溶液10質量部中で1時間攪拌した。ろ過した後10質量部のイオン交換水で洗浄し500mMの酢酸緩衝液(pH7)10質量部でpHの平衡化を行なった。その後50mMの酢酸緩衝液(pH7)10質量部で2時間ずつ2回pHの平衡化を行なった。この後ろ過を行ない担体を回収した後、エタノール5質量部でエタノール置換を30分行なった。ろ過した後、リシノール酸を1質量部含むエタノール5質量部を加え30分間、リシノール酸を担体に吸着させた。ろ過によって担体を回収した後、50mMの酢酸緩衝液(pH7)5質量部で30分ずつ4回洗浄し、エタノールを除去し、ろ過して担体を回収した。その後市販のリパーゼ(リパーゼAY、アマノ天野製薬(株))1質量部を50mMの酢酸緩衝液(pH7)9質量部に溶解した酵素液と5時間接触させ、固定化を行なった。ろ過し、固定化酵素を回収して50mMの酢酸緩衝液(pH7)10質量部で洗浄を行なうことにより、固定化していない酵素やタンパクを除去した。その後実際に分解を行なう菜種油を4質量部加え12時間攪拌した。以上の操作はいずれも20℃で行なった。その後ろ過して油脂と分離し、固定化酵素とした。その結果、2700U/g(乾燥重量)の加水分解活性(発現すべき活性)を示す固定化リパーゼが得られた。固定化酵素の重量基準の平均粒子径は451μmであった。
横断面の形状が11.4mm×11.4mmの矩形(代表長さ16mm)であるジグザグ状の仕切板(図2に相当、肉厚1mm、高さ1300mm)を、閉じていない部分の長さが2mmとなるように縦方向に装填したジャケット付きのステンレス製カラム(内径70mm、高さ1500mm)に、前記固定化リパーゼ1.3kg(乾燥重量)を充填し(充填高さ1300mm)、ジャケットにて35℃に保温した。カラム上部より菜種油と蒸留水を重量比10:6で混合した液を4.3kg/Hrで送液し、加水分解反応を行った。その結果を表1に示す。なお、表中の分解率は、分析により求めた酸価をケン化価で除することにより算出した。なお、酸価は、American Oil Chemists.Society Official Method Ca 5a−40に記載の方法により、またケン化価はAmerican Oil Chemists.Society Official Method Cd 3a−94に記載の方法により測定した。
横断面の形状が40mm×40mmの矩形(代表長さ56mm)で閉じてない部分の長さが1mmとなるように、組合せ用スリット入り仕切板(図4に相当、板厚2mm、高さ300mm)を組合せて装填したジャケット付きのステンレス製カラム(内径200mm、高さ1500mm)に、前記固定化リパーゼを乾燥ベースで11.5kg充填(充填高さ1500mm)し、ジャケットにて35℃に保温した。カラム上部より菜種油と蒸留水を重量比10:6で混合した液を30kg/Hrで送液し、加水分解反応を行った。その結果を表1に示す。
ステンレス製カラムに仕切板を装填せず、また前記固定化リパーゼを乾燥ベースで1.4kg充填(内径70mm、充填高さ1300mm)した以外は実施例1と同様の手順で加水分解反応を行った。結果を表1に示す。
ステンレス製カラムに仕切板を装填せず、また前記固定化リパーゼを乾燥ベースで12.7kg充填(内径200mm、充填高さ1500mm)した以外は実施例2と同様の手順で加水分解反応を行った。結果を表1に示す。
Claims (5)
- 固定化リパーゼを充填した固定床型反応塔に油相基質及び水相基質からなる液体混合物を供給し、同一方向に並流させて加水分解反応を行う脂肪酸類の製造方法において、一の管の横断面が少なくとも一部が閉じていない代表長さが100mm以下の円形状又は多角形状である複数の管状構造が形成されるよう固定床型反応塔の縦方向に仕切板を挿入した固定床型反応塔を用い、該管状構造内に固定化リパーゼを充填し、該管状構造内に前記液体混合物を供給する脂肪酸類の製造方法。
- 前記円形状又は多角形状の横断面における閉じていない部分の長さが、0.1〜10mmである請求項1記載の脂肪酸類の製造方法。
- 固定床型反応塔の縦方向に挿入した仕切板が、上下方向に複数段に分割されているものである請求項1又は2記載の脂肪酸類の製造方法。
- 固定床型反応塔の縦方向に挿入した仕切板が、横方向に複数部分に分割されているものである請求項1〜3のいずれか1項に記載の脂肪酸類の製造方法。
- 固定床型反応塔の縦方向に挿入した仕切板と固定床型反応塔内壁との間隙の最も狭い部分が1mm以上である請求項1〜4のいずれか1項に記載の脂肪酸類の製造方法。
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