Natural heterogeneous catalysis with immobilised oxidase biocatalysts.

Natural heterogeneous catalysis with immobilised oxidase biocatalysts.
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DOI:
10.1039/d0ra03618h
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发表时间:
2020-05-20
期刊:
影响因子:
3.9
通讯作者:
--
中科院分区:
化学3区
文献类型:
--
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描述了使用分子氧允许有价值的化学品的多功能氧化的固定化氧化酶生物催化剂的产生。工程化半乳糖氧化酶(GOase)变体M1和M3-5,工程化胆碱氧化酶(AcCO 6)和单胺氧化酶当共价连接在固体支持物上时,MAO-ND 9显示出长期稳定性和数周内的可重复使用性,在稳定性方面优于其游离对应物(超过20倍),在60 °C下的耐热性,以及对纯有机溶剂如己烷和甲苯的耐受性。这些耐用的多相氧化催化剂可以在每次反应后回收,并可多次重复使用,用于不同底物的氧化。描述了使用分子氧允许有价值的化学品的多功能氧化的固定化氧化酶生物催化剂的产生。
The generation of immobilised oxidase biocatalysts allowing multifunctional oxidation of valuable chemicals using molecular oxygen is described. Engineered galactose oxidase (GOase) variants M1 and M3–5, an engineered choline oxidase (AcCO6) and monoamine oxidase (MAO-N D9) displayed long-term stability and reusability over several weeks when covalently attached on a solid support, outperforming their free counterparts in terms of stability (more than 20 fold), resistance to heat at 60 °C, and tolerance to neat organic solvents such as hexane and toluene. These robust heterogenous oxidation catalysts can be recovered after each reaction and be reused multiple times for the oxidation of different substrates. The generation of immobilised oxidase biocatalysts allowing multifunctional oxidation of valuable chemicals using molecular oxygen is described.
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发表时间: 2016-07-01
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