JP2014532427A - 微生物によるn−ブチルアルデヒドの生産 - Google Patents
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Abstract
【選択図】図3C
Description
Claims (20)
- n−ブチルアルデヒドを生産する方法であって、
(a)培地中、炭素源で微生物を培養する段階であって、前記微生物が少なくとも1つの異種遺伝子を発現するよう操作され、少なくとも1つの天然遺伝子の削除によって前記炭素源からn−ブチルアルデヒドへの変換が可能である段階と、
(b)産生された前記n−ブチルアルデヒドを、n−ブチルアルデヒドの累積収率が少なくとも1.5g/Lになるようガスストリッピング工程によって前記培地から回収する段階と
を含み、前記培養する段階において前記回収する段階を実施する方法。 - 前記少なくとも1つの異種遺伝子が、アセチル−CoAアセチルトランスフェラーゼ、3−ヒドロキシアシル−CoAデヒドロゲナーゼ、クロトニル−CoAヒドラターゼ、ブチリル−CoAデヒドロゲナーゼ、トランス−エノイル−CoAレダクターゼおよびブタナールデヒドロゲナーゼからなる群より選択される、請求項1に記載の方法。
- 前記微生物が、atoB、crt、hbdおよびbldhの発現を可能にする人工オペロンを発現するよう遺伝子改変されている、請求項1に記載の方法。
- 前記微生物が、ldhA、adhE、frdBC、ptaおよびyqhDからなる群より選択される少なくとも1つの遺伝子の発現が減少するか消失するよう遺伝子改変されている、請求項1に記載の方法。
- 前記ガスストリッピング工程が、毎分少なくとも1容積のスパージ速度でストリッピングガスをスパージすることを含み、前記培養の時間が24時間以内である、請求項1に記載の方法。
- 前記回収する段階を、40時間の培養時間以内に累積収率が2.0g/Lになるよう実施する、請求項1に記載の方法。
- 前記微生物が、エシェリキア属(Escherichia)、コリネバクテリウム属(Corynebacterium)、クロストリジウム属(Clostridium)、ザイモノナス属(Zymonomas)、サルモネラ属(Salmonella)、ロドコッカス属(Rhodococcus)、シュードモナス属(Pseudomonas)、バチルス属(Bacillus)、ラクトバチルス属(Lactobacillus)、エンテロコッカス属(Enterococcus)、アルカリゲネス属(Alcaligenes)、クレシエラ属(Klesiella)、パエニバチルス属(Paenibacillus)、アルスロバクター属(Arthrobacter)、ブレビバクテリウム属(Brevibacterium)、ピキア属(Pichia)、カンジダ属(Candida)、ハンセヌラ属(Hansenula)、シネココッカス属(Synechococcus)、シネコシスティス属(Synechocystis)、アナベナ属(Anabaena)、ラルストニア属(Ralstonia)、ラクトコッカス属(Lactococcus)およびサッカロミセス属(Saccharomyces)からなる群より選択される属に属する、請求項1に記載の方法。
- 前記微生物が大腸菌(E.coli)である、請求項1に記載の方法。
- 気相でn−ブチルアルデヒドをn−ブタノールに還元する段階をさらに含む、請求項8に記載の方法。
- n−ブチルアルデヒドを凝縮し、液相で前記n−ブチルアルデヒドをn−ブタノールに還元する段階をさらに含む、請求項1に記載の方法。
- n−ブチルアルデヒドを生産する方法であって、
(a)培地中、炭素源で微生物を培養する段階であって、前記微生物が少なくとも1つの異種遺伝子を発現するよう操作され、少なくとも1つの天然遺伝子の削除によって前記炭素源からn−ブチルアルデヒドへの変換が可能である段階と、
(b)産生された前記n−ブチルアルデヒドを、24時間の培養時間以内に最大累積収率の50%(MCY50)を得るのに効果的な条件下でスパージする段階を含むガスストリッピング工程によって前記培地から回収する段階と
を含み、前記培養する段階において前記回収する段階を実施する方法。 - 前記培養する段階が、少なくとも18時間にわたるバッチ培養で培養することを含む、請求項11に記載の方法。
- 前記MCY50を20時間以内に回収する、請求項11に記載の方法。
- 前記MCY50が少なくとも1g/Lである、請求項13に記載の方法。
- n−ブチルアルデヒドを生産する方法であって、
(a)培地中、炭素源で微生物を培養する段階であって、前記微生物が少なくとも1つの異種遺伝子を発現するよう操作され、少なくとも1つの天然遺伝子の削除によって前記炭素源からn−ブチルアルデヒドへの変換が可能である段階と、
(b)産生された前記n−ブチルアルデヒドを、溶解n−ブチルアルデヒドを生存閾値濃度縮未満の濃度に維持するのに効果的なスパージ速度でのガスストリッピング工程によって前記培地から回収する段階と
を含み、前記培養する段階において前記回収する段階を実施する方法。 - 前記ガスストリッピング工程が、連続的なスパージングを用いるものである、請求項15に記載の方法。
- 前記連続的なスパージングが、毎分少なくとも1容積のスパージ速度である、請求項16に記載の方法。
- 前記溶解n−ブチルアルデヒドの濃度を1.0g/L未満に維持する、請求項15に記載の方法。
- n−ブチルアルデヒドを生産する方法であって、
(a)炭素源で微生物を培養する段階であって、前記微生物が少なくとも1つの異種遺伝子を発現するよう操作され、少なくとも1つの天然遺伝子の削除によって前記炭素源からn−ブチルアルデヒドへの変換が可能である段階と、
(b)産生された前記n−ブチルアルデヒドを、細胞密度の純減少を少なくとも40時間まで防ぐのに効果的なスパージ速度でのガスストリッピング工程によって培養ブロスから回収する段階と
を含み、前記培養する段階において前記回収する段階を実施する方法。 - 前記スパージ速度が、少なくとも24時間にわたって細胞密度の純増加をもたらすのに効果的なものである、請求項19に記載の方法。
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PCT/US2012/063288 WO2013067325A1 (en) | 2011-11-03 | 2012-11-02 | Microbial production of n-butyraldehyde |
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EP3056561A1 (de) | 2015-02-16 | 2016-08-17 | Evonik Degussa GmbH | Mikroorganismen mit reduzierter Enzymaktivität |
WO2017190056A1 (en) * | 2016-04-28 | 2017-11-02 | William Marsh Rice University | Conversion of 1-carbon compounds to products |
CN111334445B (zh) * | 2018-12-19 | 2021-08-03 | 中国科学院微生物研究所 | 长链二元酸生产菌株及其制备方法和应用 |
CN109536423B (zh) * | 2019-01-11 | 2022-06-07 | 宁夏医科大学 | 一种蜡样芽孢杆菌的培养方法及其专用培养基 |
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BR112014010715A2 (pt) | 2017-05-02 |
CA2854450A1 (en) | 2013-05-10 |
EP2773761A4 (en) | 2015-06-17 |
KR20150006412A (ko) | 2015-01-16 |
AU2015246110B2 (en) | 2017-03-30 |
US20140322774A1 (en) | 2014-10-30 |
AU2012332325B2 (en) | 2015-07-16 |
CN104254609A (zh) | 2014-12-31 |
EP2773761B1 (en) | 2019-03-06 |
KR20170096226A (ko) | 2017-08-23 |
EP2773761A1 (en) | 2014-09-10 |
CN104254609B (zh) | 2017-09-19 |
ES2728279T3 (es) | 2019-10-23 |
JP6272767B2 (ja) | 2018-01-31 |
WO2013067325A1 (en) | 2013-05-10 |
US9777297B2 (en) | 2017-10-03 |
KR101796983B1 (ko) | 2017-11-13 |
AU2012332325A1 (en) | 2014-05-22 |
US20180010155A1 (en) | 2018-01-11 |
AU2017202804B2 (en) | 2018-09-13 |
CA2854450C (en) | 2020-04-21 |
AU2015246110A1 (en) | 2015-11-12 |
BR112014010715B1 (pt) | 2021-10-26 |
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