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Wu R, Li D, Chen Q, Luo Z, Zhou J, Mao J. Optimization of vanillin biosynthesis in Escherichia coli K12 MG1655 through metabolic engineering. BIORESOURCE TECHNOLOGY 2024; 411:131189. [PMID: 39127360 DOI: 10.1016/j.biortech.2024.131189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Revised: 07/24/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024]
Abstract
Vanillin is an important flavouring agent applied in food, spices, pharmaceutical industries and other fields. Microbial biosynthesis of vanillin is considered a sustainable and economically feasible alternative to traditional chemical synthesis. In this study, Escherichia coli K12 MG1655 was used for the de novo synthesis of VAN by screening highly active carboxylic acid reductases and catechol O-methyltransferases, optimising the protocatechuic acid pathway, and regulating competitive metabolic pathways. Additionally, major alcohol by-products were identified and decreased by deleting three endogenous aldo-keto reductases and three alcohol dehydrogenases. Finally, a highest VAN titer was achieved to 481.2 mg/L in a 5 L fermenter from glucose. This work provides a valuable example of pathway engineering and screens several enzyme variants for the first time in E. coli.
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Affiliation(s)
- Renga Wu
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi, Jiangsu 214122, China; Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Dong Li
- Science Center for Future Foods, Jiangnan University, Wuxi, Jiangsu 214122, China; Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Qihang Chen
- Science Center for Future Foods, Jiangnan University, Wuxi, Jiangsu 214122, China; Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Zhengshan Luo
- Science Center for Future Foods, Jiangnan University, Wuxi, Jiangsu 214122, China; Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jingwen Zhou
- Science Center for Future Foods, Jiangnan University, Wuxi, Jiangsu 214122, China; Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jian Mao
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China; Jiangnan University (Shaoxing) Industrial Technology Research Institute, National Engineering Research Center of Huangjiu, Zhejiang Guyuelongshan Shaoxing Wine Co., Ltd., Shaoxing, Zhejiang 312000, China.
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Ahmad Rizal Lim FN, Marpani F, Anak Dilol VE, Mohamad Pauzi S, Othman NH, Alias NH, Nik Him NR, Luo J, Abd Rahman N. A Review on the Design and Performance of Enzyme-Aided Catalysis of Carbon Dioxide in Membrane, Electrochemical Cell and Photocatalytic Reactors. MEMBRANES 2021; 12:membranes12010028. [PMID: 35054554 PMCID: PMC8778536 DOI: 10.3390/membranes12010028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/28/2021] [Accepted: 12/04/2021] [Indexed: 11/17/2022]
Abstract
Multi-enzyme cascade catalysis involved three types of dehydrogenase enzymes, namely, formate dehydrogenase (FDH), formaldehyde dehydrogenase (FaldDH), alcohol dehydrogenase (ADH), and an equimolar electron donor, nicotinamide adenine dinucleotide (NADH), assisting the reaction is an interesting pathway to reduce thermodynamically stable molecules of CO2 from the atmosphere. The biocatalytic sequence is interesting because it operates under mild reaction conditions (low temperature and pressure) and all the enzymes are highly selective, which allows the reaction to produce three basic chemicals (formic acid, formaldehyde, and methanol) in just one pot. There are various challenges, however, in applying the enzymatic conversion of CO2, namely, to obtain high productivity, increase reusability of the enzymes and cofactors, and to design a simple, facile, and efficient reactor setup that will sustain the multi-enzymatic cascade catalysis. This review reports on enzyme-aided reactor systems that support the reduction of CO2 to methanol. Such systems include enzyme membrane reactors, electrochemical cells, and photocatalytic reactor systems. Existing reactor setups are described, product yields and biocatalytic productivities are evaluated, and effective enzyme immobilization methods are discussed.
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Affiliation(s)
- Fatin Nasreen Ahmad Rizal Lim
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (F.N.A.R.L.); (V.E.A.D.); (S.M.P.); (N.H.O.); (N.H.A.); (N.R.N.H.); (N.A.R.)
| | - Fauziah Marpani
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (F.N.A.R.L.); (V.E.A.D.); (S.M.P.); (N.H.O.); (N.H.A.); (N.R.N.H.); (N.A.R.)
- Catalysis for Sustainable Water and Energy Nexus Research Group, School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia
- Correspondence: ; Tel.: +60-35543-6510; Fax: +60-35543-6300
| | - Victoria Eliz Anak Dilol
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (F.N.A.R.L.); (V.E.A.D.); (S.M.P.); (N.H.O.); (N.H.A.); (N.R.N.H.); (N.A.R.)
| | - Syazana Mohamad Pauzi
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (F.N.A.R.L.); (V.E.A.D.); (S.M.P.); (N.H.O.); (N.H.A.); (N.R.N.H.); (N.A.R.)
| | - Nur Hidayati Othman
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (F.N.A.R.L.); (V.E.A.D.); (S.M.P.); (N.H.O.); (N.H.A.); (N.R.N.H.); (N.A.R.)
- Catalysis for Sustainable Water and Energy Nexus Research Group, School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia
| | - Nur Hashimah Alias
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (F.N.A.R.L.); (V.E.A.D.); (S.M.P.); (N.H.O.); (N.H.A.); (N.R.N.H.); (N.A.R.)
- Catalysis for Sustainable Water and Energy Nexus Research Group, School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia
| | - Nik Raikhan Nik Him
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (F.N.A.R.L.); (V.E.A.D.); (S.M.P.); (N.H.O.); (N.H.A.); (N.R.N.H.); (N.A.R.)
| | - Jianquan Luo
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
| | - Norazah Abd Rahman
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (F.N.A.R.L.); (V.E.A.D.); (S.M.P.); (N.H.O.); (N.H.A.); (N.R.N.H.); (N.A.R.)
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