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Homola P, Kurák T, Illeová V, Polakovič M. Kinetics of acetophenone reduction to (R)-1-phenylethanol by a whole-cellPichia capsulatabiocatalyst. BIOCATAL BIOTRANSFOR 2016. [DOI: 10.3109/10242422.2016.1151007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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52
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Zhou J, Chen X, Lu L, Govender A, Yang H, Shen W. Enhanced production of N -acetyl- d -neuraminic acid by whole-cell bio-catalysis of Escherichia coli. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2015.11.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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53
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Synthesis of 1-(S)-phenylethanol and ethyl (R)-4-chloro-3-hydroxybutanoate using recombinant Rhodococcus erythropolis alcohol dehydrogenase produced by two yeast species. Biochem Eng J 2016. [DOI: 10.1016/j.bej.2015.11.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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54
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Perspectives on the biotechnological production and potential applications of lactosucrose: A review. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.09.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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55
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Development of a nanostabilized biocatalyst using an extremophilic microorganism for ribavirin biosynthesis. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.08.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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56
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Borrelli GM, Trono D. Recombinant Lipases and Phospholipases and Their Use as Biocatalysts for Industrial Applications. Int J Mol Sci 2015; 16:20774-840. [PMID: 26340621 PMCID: PMC4613230 DOI: 10.3390/ijms160920774] [Citation(s) in RCA: 195] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 07/17/2015] [Accepted: 08/11/2015] [Indexed: 11/29/2022] Open
Abstract
Lipases and phospholipases are interfacial enzymes that hydrolyze hydrophobic ester linkages of triacylglycerols and phospholipids, respectively. In addition to their role as esterases, these enzymes catalyze a plethora of other reactions; indeed, lipases also catalyze esterification, transesterification and interesterification reactions, and phospholipases also show acyltransferase, transacylase and transphosphatidylation activities. Thus, lipases and phospholipases represent versatile biocatalysts that are widely used in various industrial applications, such as for biodiesels, food, nutraceuticals, oil degumming and detergents; minor applications also include bioremediation, agriculture, cosmetics, leather and paper industries. These enzymes are ubiquitous in most living organisms, across animals, plants, yeasts, fungi and bacteria. For their greater availability and their ease of production, microbial lipases and phospholipases are preferred to those derived from animals and plants. Nevertheless, traditional purification strategies from microbe cultures have a number of disadvantages, which include non-reproducibility and low yields. Moreover, native microbial enzymes are not always suitable for biocatalytic processes. The development of molecular techniques for the production of recombinant heterologous proteins in a host system has overcome these constraints, as this allows high-level protein expression and production of new redesigned enzymes with improved catalytic properties. These can meet the requirements of specific industrial process better than the native enzymes. The purpose of this review is to give an overview of the structural and functional features of lipases and phospholipases, to describe the recent advances in optimization of the production of recombinant lipases and phospholipases, and to summarize the information available relating to their major applications in industrial processes.
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Affiliation(s)
- Grazia M Borrelli
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per la Cerealicoltura, S.S. 673 Km 25, 200-71122 Foggia, Italy.
| | - Daniela Trono
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro di Ricerca per la Cerealicoltura, S.S. 673 Km 25, 200-71122 Foggia, Italy.
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Haldar S, Mulani FA, Aarthy T, Thulasiram HV. Whole-Cell Mediated 11β-Hydroxylation on the Basic Limonoid Skeleton by Cunninghamella echinulata. J Org Chem 2015; 80:6490-5. [PMID: 25985231 DOI: 10.1021/acs.joc.5b00417] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Regio- and stereoselective 11β-hydroxylation was achieved on the basic limonoid skeleton through microbial transformation. Whole cells of Cunninghamella echinulata efficiently converted basic limonoids such as epoxyazadiradione, azadiradione, and gedunin to their 11β-hydroxy analogues as the sole metabolite. Fermentation conditions affecting the efficiency (96%) of biotransformation including substrate concentration, incubation period, pH, and temperature were optimized. The position and stereochemistry of hydroxyl functionality on the isolated metabolites were established through extensive spectroscopic and spectrometric studies (1D, 2D NMR, ESI-MS, and MS/MS).
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Affiliation(s)
- Saikat Haldar
- †Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India
| | - Fayaj A Mulani
- †Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India
| | - Thiagarayaselvam Aarthy
- †Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India
| | - Hirekodathakallu V Thulasiram
- †Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India.,§CSIR-Institute of Genomics and Integrative Biology, Mall Road, New Delhi-110007, India
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58
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Fernández-Lucas J. Multienzymatic synthesis of nucleic acid derivatives: a general perspective. Appl Microbiol Biotechnol 2015; 99:4615-27. [PMID: 25952113 DOI: 10.1007/s00253-015-6642-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 04/22/2015] [Accepted: 04/24/2015] [Indexed: 11/28/2022]
Abstract
Living cells are most perfect synthetic factory. The surprising synthetic efficiency of biological systems is allowed by the combination of multiple processes catalyzed by enzymes working sequentially. In this sense, biocatalysis tries to reproduce nature's synthetic strategies to perform the synthesis of different organic compounds using natural catalysts such as cells or enzymes. Nowadays, the use of multienzymatic systems in biocatalysis is becoming a habitual strategy for the synthesis of organic compounds that leads to the realization of complex synthetic schemes. By combining several steps in one pot, a significant step economy can be realized and the potential for environmentally benign synthesis is improved. Using this sustainable synthetic system, several work-up steps can be avoided and pure products are ideally isolated after a series of reactions in one single vessel after just one straightforward purification step. In recent years, enzymatic methodology for the preparation of nucleic acid derivatives (NADs) has become a standard technique for the synthesis of a wide variety of natural NADs. Enzymatic methods have been shown to be an efficient alternative for the synthesis of nucleoside and nucleotide analogs to the traditional multistep chemical methods, since chemical glycosylation reactions include several protection-deprotection steps and the use of chemical reagents and organic solvents that are expensive and environmentally harmful. In this minireview, we want to illustrate what we consider the most current relevant examples of in vivo and in vitro multienzymatic systems used for the synthesis of nucleic acid derivatives showing advantages and disadvantages of each methodology. Finally, a detailed perspective about the impact of -omics in multienzymatic systems has been described.
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Affiliation(s)
- Jesús Fernández-Lucas
- Applied Biotechnology Group, Department of Pharmacy and Biotechnology, Faculty of Biomedical Sciences, European University of Madrid, Urbanización El Bosque, Calle Tajo, s/n, 28670, Villaviciosa de Odón, Madrid, Spain,
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Smith MR, Khera E, Wen F. Engineering Novel and Improved Biocatalysts by Cell Surface Display. Ind Eng Chem Res 2015; 54:4021-4032. [PMID: 29056821 PMCID: PMC5647830 DOI: 10.1021/ie504071f] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Biocatalysts, especially enzymes, have the ability to catalyze reactions with high product selectivity, utilize a broad range of substrates, and maintain activity at low temperature and pressure. Therefore, they represent a renewable, environmentally friendly alternative to conventional catalysts. Most current industrial-scale chemical production processes using biocatalysts employ soluble enzymes or whole cells expressing intracellular enzymes. Cell surface display systems differ by presenting heterologous enzymes extracellularly, overcoming some of the limitations associated with enzyme purification and substrate transport. Additionally, coupled with directed evolution, cell surface display is a powerful platform for engineering enzymes with enhanced properties. In this review, we will introduce the molecular and cellular principles of cell surface display and discuss how it has been applied to engineer enzymes with improved properties as well as to develop surface-engineered microbes as whole-cell biocatalysts.
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Affiliation(s)
- Mason R. Smith
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Eshita Khera
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Fei Wen
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
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60
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Rivero CW, De Benedetti EC, Lozano ME, Trelles JA. Bioproduction of ribavirin by green microbial biotransformation. Process Biochem 2015; 50:935-940. [PMID: 32288593 PMCID: PMC7108421 DOI: 10.1016/j.procbio.2015.03.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 03/16/2015] [Indexed: 11/24/2022]
Abstract
Biotransformation of ribavirin was performed by E. coli ATCC 12407, reaching yields of 86%. This mesophile microorganism was successfully stabilized in agarose and polyacrylamide. Biocatalyst immobilized in agarose could be reused during 270 h without activity loss. Packed-bed bioreactor prototype was able to produce 95 mg ribavirin.
Ribavirin is an antiviral compound widely used in Hepatitis C Virus therapy. Biotransformation of this nucleoside analogue using Escherichia coli ATCC 12407 as biocatalyst is herein reported. Reaction parameters such as microorganism amounts, substrate ratio and temperature were optimized reaching conversion yields of 86%. Biocatalyst stability was enhanced by immobilization in agarose matrix. This immobilized biocatalyst was able to be reused for more than 270 h and could be stored during more than 4 months without activity loss. Batch and packed-bed reactors based on a stabilized biocatalyst were assayed for bioprocess scale-up. A continuous sustainable bioprocess was evaluated using a prototype packed-bed reactor, which allowed to produce 95 mg of ribavirin. Finally, in this work an efficient green bioprocess for ribavirin bioproduction using a stabilized biocatalyst was developed.
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Affiliation(s)
- Cintia W Rivero
- Laboratorio de Investigaciones en Biotecnología Sustentable (LIBioS), Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal (B1876BXD), Argentina
| | - Eliana C De Benedetti
- Laboratorio de Investigaciones en Biotecnología Sustentable (LIBioS), Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal (B1876BXD), Argentina
| | - Mario E Lozano
- Laboratorio de Investigaciones en Biotecnología Sustentable (LIBioS), Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal (B1876BXD), Argentina
| | - Jorge A Trelles
- Laboratorio de Investigaciones en Biotecnología Sustentable (LIBioS), Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal (B1876BXD), Argentina
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Biocatalytic deracemisation of aliphatic β-hydroxy esters: Improving the enantioselectivity by optimisation of reaction parameters. ACTA ACUST UNITED AC 2015; 42:173-80. [DOI: 10.1007/s10295-014-1558-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 11/24/2014] [Indexed: 10/24/2022]
Abstract
Abstract
Optically pure aliphatic β-hydroxy esters were prepared from their racemates by deracemisation using the biocatalyst Candida parapsilosis ATCC 7330. High optical purity (up to >99 %) and good yields (up to 71 %) of the product secondary alcohols were obtained. This study highlights the importance of optimization of reaction conditions using ethyl-3-hydroxybutanoate as the model substrate to improve the enantioselectivity (enantiomeric excess from 9 to 98 %). The present study emphasises the broad substrate scope of the biocatalyst towards deracemisation. This is the first report of Candida parapsilosis ATCC 7330-mediated deracemisation of various alkyl-3-hydroxybutanoates to produce either the (R)-enantiomers (methyl, ethyl, propyl, butyl, t-butyl, allyl-3-hydroxybutanoates) or (S)-enantiomers (pentyl, iso-amyl and iso-propyl-3-hydroxybutanoates).
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62
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Going beyond E. coli: autotransporter based surface display on alternative host organisms. N Biotechnol 2015; 32:644-50. [PMID: 25579193 DOI: 10.1016/j.nbt.2014.12.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 12/19/2014] [Accepted: 12/31/2014] [Indexed: 11/21/2022]
Abstract
Autotransporters represent one of the most popular anchoring motifs used to display peptides, proteins or enzymes on the cell surface of a Gram-negative bacterium. Applications range from vaccine delivery to library screenings to biocatalysis and bioremediation. Although the underlying secretion mechanism is supposed to be available in most, if not all, Gram-negative bacteria, autotransporters have to date almost exclusively been used for surface display on Escherichia coli. However, for their utilisation beyond a laboratory scale, in particular for biocatalysis, host bacteria with specific features and industrial applicability are required. A few groups have addressed this issue and demonstrated that bacteria other than E. coli can also be used for autotransporter based surface display. We summarise these studies and discuss opportunities and challenges that arise from surface display of recombinant proteins using the autotransporter pathway in alternative hosts.
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63
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Venkataraman H, te Poele EM, Rosłoniec KZ, Vermeulen N, Commandeur JNM, van der Geize R, Dijkhuizen L. Biosynthesis of a steroid metabolite by an engineered Rhodococcus erythropolis strain expressing a mutant cytochrome P450 BM3 enzyme. Appl Microbiol Biotechnol 2014; 99:4713-21. [DOI: 10.1007/s00253-014-6281-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 11/19/2014] [Accepted: 11/29/2014] [Indexed: 12/01/2022]
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64
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Palmeira DJ, Araújo LS, Abreu JC, Andrade LH. Application of a promiscuous Arthrobacter sp. from Antarctic in aerobic (R)-selective deracemization and anaerobic (S)-selective reduction. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.09.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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65
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Badran AH, Liu DR. In vivo continuous directed evolution. Curr Opin Chem Biol 2014; 24:1-10. [PMID: 25461718 DOI: 10.1016/j.cbpa.2014.09.040] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 09/12/2014] [Indexed: 01/22/2023]
Abstract
The development and application of methods for the laboratory evolution of biomolecules has rapidly progressed over the last few decades. Advancements in continuous microbe culturing and selection design have facilitated the development of new technologies that enable the continuous directed evolution of proteins and nucleic acids. These technologies have the potential to support the extremely rapid evolution of biomolecules with tailor-made functional properties. Continuous evolution methods must support all of the key steps of laboratory evolution - translation of genes into gene products, selection or screening, replication of genes encoding the most fit gene products, and mutation of surviving genes - in a self-sustaining manner that requires little or no researcher intervention. Continuous laboratory evolution has been historically used to study problems including antibiotic resistance, organismal adaptation, phylogenetic reconstruction, and host-pathogen interactions, with more recent applications focusing on the rapid generation of proteins and nucleic acids with useful, tailor-made properties. The advent of increasingly general methods for continuous directed evolution should enable researchers to address increasingly complex questions and to access biomolecules with more novel or even unprecedented properties.
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Affiliation(s)
- Ahmed H Badran
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, United States; Howard Hughes Medical Institute, Harvard University, Cambridge, MA 02138, United States
| | - David R Liu
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, United States; Howard Hughes Medical Institute, Harvard University, Cambridge, MA 02138, United States.
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66
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Wang Y, Lv M, Zhang Y, Xiao X, Jiang T, Zhang W, Hu C, Gao C, Ma C, Xu P. Reconstruction of lactate utilization system in Pseudomonas putida KT2440: a novel biocatalyst for l-2-hydroxy-carboxylate production. Sci Rep 2014; 4:6939. [PMID: 25373400 PMCID: PMC4221787 DOI: 10.1038/srep06939] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 10/20/2014] [Indexed: 11/09/2022] Open
Abstract
As an important method for building blocks synthesis, whole cell biocatalysis is hindered by some shortcomings such as unpredictability of reactions, utilization of opportunistic pathogen, and side reactions. Due to its biological and extensively studied genetic background, Pseudomonas putida KT2440 is viewed as a promising host for construction of efficient biocatalysts. After analysis and reconstruction of the lactate utilization system in the P. putida strain, a novel biocatalyst that only exhibited NAD-independent D-lactate dehydrogenase activity was prepared and used in L-2-hydroxy-carboxylates production. Since the side reaction catalyzed by the NAD-independent L-lactate dehydrogenase was eliminated in whole cells of recombinant P. putida KT2440, two important L-2-hydroxy-carboxylates (L-lactate and L-2-hydroxybutyrate) were produced in high yield and high optical purity by kinetic resolution of racemic 2-hydroxy carboxylic acids. The results highlight the promise in biocatalysis by the biotechnologically important organism P. putida KT2440 through genomic analysis and recombination.
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Affiliation(s)
- Yujiao Wang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People's Republic of China
| | - Min Lv
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People's Republic of China
| | - Yingxin Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People's Republic of China
| | - Xieyue Xiao
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People's Republic of China
| | - Tianyi Jiang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People's Republic of China
| | - Wen Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People's Republic of China
| | - Chunhui Hu
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People's Republic of China
| | - Chao Gao
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People's Republic of China
| | - Cuiqing Ma
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People's Republic of China
| | - Ping Xu
- 1] State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People's Republic of China [2] State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
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67
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He YC, Zhang DP, Tao ZC, Zhang X, Yang ZX. Discovery of a reductase-producing strain recombinant E. coli CCZU-A13 using colorimetric screening and its whole cell-catalyzed biosynthesis of ethyl (R)-4-chloro-3-hydroxybutanoate. BIORESOURCE TECHNOLOGY 2014; 172:342-348. [PMID: 25277262 DOI: 10.1016/j.biortech.2014.09.062] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 09/11/2014] [Accepted: 09/14/2014] [Indexed: 06/03/2023]
Abstract
An NADH-dependent reductase (SsCR) was discovered by genome data mining. After SsCR was overexpressed in E. coli BL21, recombinant E. coli CCZU-A13 with high reductase activity and excellent stereoselectivity for the reduction of ethyl 4-chloro-3-oxobutanoate (COBE) into ethyl (R)-4-chloro-3-hydroxybutanoate ((R)-CHBE) was screened using one high-throughput colorimetric screening strategy. After the reaction optimization, a highly stereoselective bioreduction of COBE into (R)-CHBE (>99% ee) with the resting cells of E. coli CCZU-A13 was successfully demonstrated in n-butyl acetate-water (10:90, v/v) biphasic system. Biotransformation of 600mM COBE for 8h in the biphasic system, (R)-CHBE (>99% ee) could be obtained in the high yield of 100%. Moreover, the broad substrate specificity in the reduction of aliphatic and aromatic carbonyl compounds was also found. Significantly, E. coli CCZU-A13 shows high potential in the industrial production of (R)-CHBE (>99% ee) and its derivatives.
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Affiliation(s)
- Yu-Cai He
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, PR China.
| | - Dan-Ping Zhang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, PR China
| | - Zhi-Cheng Tao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, PR China
| | - Xian Zhang
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Zhen-Xing Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, PR China
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68
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Kim KR, Seo ES, Oh DK. L-Ribose production from L-arabinose by immobilized recombinant Escherichia coli co-expressing the L-arabinose isomerase and mannose-6-phosphate isomerase genes from Geobacillus thermodenitrificans. Appl Biochem Biotechnol 2014; 172:275-88. [PMID: 24078190 DOI: 10.1007/s12010-013-0547-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 09/18/2013] [Indexed: 11/24/2022]
Abstract
L-Ribose is an important precursor for antiviral agents, and thus its high-level production is urgently demanded. For this aim, immobilized recombinant Escherichia coli cells expressing the L-arabinose isomerase and variant mannose-6-phosphate isomerase genes from Geobacillus thermodenitrificans were developed. The immobilized cells produced 99 g/l L-ribose from 300 g/l L-arabinose in 3 h at pH 7.5 and 60 °C in the presence of 1 mM Co(2+), with a conversion yield of 33 % (w/w) and a productivity of 33 g/l/h. The immobilized cells in the packed-bed bioreactor at a dilution rate of 0.2 h(-1) produced an average of 100 g/l L-ribose with a conversion yield of 33 % and a productivity of 5.0 g/l/h for the first 12 days, and the operational half-life in the bioreactor was 28 days. Our study is first verification for L-ribose production by long-term operation and feasible for cost-effective commercialization. The immobilized cells in the present study also showed the highest conversion yield among processes from L-arabinose as the substrate.
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69
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Co-expression of d-glucose isomerase and d-psicose 3-epimerase: Development of an efficient one-step production of d-psicose. Enzyme Microb Technol 2014; 64-65:1-5. [DOI: 10.1016/j.enzmictec.2014.06.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 06/12/2014] [Accepted: 06/12/2014] [Indexed: 11/20/2022]
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70
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Kolet SP, Jadhav DD, Priyadarshini B, Swarge BN, Thulasiram HV. Fungi mediated production and practical purification of (R)-(−)-3-quinuclidinol. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Alissandratos A, Kim HK, Easton CJ. Formate production through carbon dioxide hydrogenation with recombinant whole cell biocatalysts. BIORESOURCE TECHNOLOGY 2014; 164:7-11. [PMID: 24814397 DOI: 10.1016/j.biortech.2014.04.064] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 04/17/2014] [Accepted: 04/19/2014] [Indexed: 05/20/2023]
Abstract
The biological conversion of CO2 and H2 into formate offers a sustainable route to a valuable commodity chemical through CO2 fixation, and a chemical form of hydrogen fuel storage. Here we report the first example of CO2 hydrogenation utilising engineered whole-cell biocatalysts. Escherichia coli JM109(DE3) cells transformed for overexpression of either native formate dehydrogenase (FDH), the FDH from Clostridium carboxidivorans, or genes from Pyrococcus furiosus and Methanobacterium thermoformicicum predicted to express FDH based on their similarity to known FDH genes were all able to produce levels of formate well above the background, when presented with H2 and CO2, the latter in the form of bicarbonate. In the case of the FDH from P. furiosus the yield was highest, reaching more than 1 g L(-1)h(-1) when a hydrogen-sparging reactor design was used.
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Affiliation(s)
- Apostolos Alissandratos
- CSIRO Biofuels Research Cluster, Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia
| | - Hye-Kyung Kim
- CSIRO Biofuels Research Cluster, Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia
| | - Christopher J Easton
- CSIRO Biofuels Research Cluster, Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia.
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Yu H, Tang H, Xu P. Green strategy from waste to value-added-chemical production: efficient biosynthesis of 6-hydroxy-3-succinoyl-pyridine by an engineered biocatalyst. Sci Rep 2014; 4:5397. [PMID: 24953905 PMCID: PMC4066252 DOI: 10.1038/srep05397] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Accepted: 06/03/2014] [Indexed: 12/04/2022] Open
Abstract
Value-added intermediates produced by microorganisms during the catabolism of N-heterocycles are potential building blocks for agrochemical synthesis and pharmaceutical production. 6-Hydroxy-3-succinoyl-pyridine (HSP), an intermediate in nicotine degradation, is an important precursor for the synthesis of drugs and compounds with biological activities. In the present study, we show that an engineered biocatalyst, Pseudomonas putida P-HSP, efficiently produced HSP from the renewable raw material of tobacco-waste that contains a high concentration of nicotine. The genetically constructed strain P-HSP realized a high accumulation of HSP, and HSP production was 3.7-fold higher than the non-engineered strain S16. Under optimal conditions, HSP was produced at high concentrations of 6.8 g l(-1) and 16.3 g l(-1) from tobacco-waste and nicotine, respectively. This work demonstrates a green strategy to block the catabolic pathway of N-heterocycles, which is a promising approach for the mutasynthesis of valuable compounds.
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Affiliation(s)
- Hao Yu
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Hongzhi Tang
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Ping Xu
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, PR China
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73
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Siedler S, Bringer S, Polen T, Bott M. NADPH-dependent reductive biotransformation with Escherichia coli and its pfkA deletion mutant: influence on global gene expression and role of oxygen supply. Biotechnol Bioeng 2014; 111:2067-75. [PMID: 24771245 DOI: 10.1002/bit.25271] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 02/25/2014] [Accepted: 04/14/2014] [Indexed: 11/11/2022]
Abstract
An Escherichia coli ΔpfkA mutant lacking the major phosphofructokinase possesses a partially cyclized pentose phosphate pathway leading to an increased NADPH per glucose ratio. This effect decreases the amount of glucose required for NADPH regeneration in reductive biotransformations, such as the conversion of methyl acetoacetate (MAA) to (R)-methyl 3-hydroxybutyrate (MHB) by an alcohol dehydrogenase from Lactobacillus brevis. Here, global transcriptional analyses were performed to study regulatory responses during reductive biotransformation. DNA microarray analysis revealed amongst other things increased expression of soxS, supporting previous results indicating that a high NADPH demand contributes to the activation of SoxR, the transcriptional activator of soxS. Furthermore, several target genes of the ArcAB two-component system showed a lower mRNA level in the reference strain than in the ΔpfkA mutant, pointing to an increased QH2 /Q ratio in the reference strain. This prompted us to analyze yields and productivities of MAA reduction to MHB under different oxygen regimes in a bioreactor. Under anaerobic conditions, the specific MHB production rates of both strains were comparable (7.4 ± 0.2 mmolMHB h(-1) gcdw (-1) ) and lower than under conditions of 15% dissolved oxygen, where those of the reference strain (12.8 mmol h(-1) gcdw (-1) ) and of the ΔpfkA mutant (11.0 mmol h(-1) gcdw (-1) ) were 73% and 49% higher. While the oxygen transfer rate (OTR) of the reference strain increased after the addition of MAA, presumably due to the oxidation of the acetate accumulated before MAA addition, the OTR of the ΔpfkA strain strongly decreased, indicating a very low respiration rate despite sufficient oxygen supply. The latter effect can likely be attributed to a restricted conversion of NADPH into NADH via the soluble transhydrogenase SthA, as the enzyme is outcompeted in the presence of MAA by the recombinant NADPH-dependent alcohol dehydrogenase. The differences in respiration rates can explain the suggested higher ArcAB activity in the reference strain.
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Affiliation(s)
- Solvej Siedler
- Institut für Bio- und Geowissenschaften, IBG-1: Biotechnologie, Forschungszentrum Jülich, D-52425, Jülich, Germany
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74
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Stereospecific production of 9R-hydroxy-10E,12Z-octadecadienoic acid from linoleic acid by recombinant Escherichia coli cells expressing 9R-lipoxygenase from Nostoc sp. SAG 25.82. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.03.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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75
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Mandelate Racemase and Mandelate Dehydrogenase Coexpressed RecombinantEscherichia coliin the Synthesis of Benzoylformate. Biosci Biotechnol Biochem 2014; 77:1236-9. [DOI: 10.1271/bbb.121012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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76
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77
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Wang S, Liu G, Zhang W, Cai N, Cheng C, Ji Y, Sun L, Zhan J, Yuan S. Efficient glycosylation of puerarin by an organic solvent-tolerant strain of Lysinibacillus fusiformis. Enzyme Microb Technol 2014; 57:42-7. [DOI: 10.1016/j.enzmictec.2014.01.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 01/16/2014] [Accepted: 01/19/2014] [Indexed: 11/24/2022]
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78
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Brault G, Shareck F, Hurtubise Y, Lépine F, Doucet N. Short-chain flavor ester synthesis in organic media by an E. coli whole-cell biocatalyst expressing a newly characterized heterologous lipase. PLoS One 2014; 9:e91872. [PMID: 24670408 PMCID: PMC3966760 DOI: 10.1371/journal.pone.0091872] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 02/16/2014] [Indexed: 11/18/2022] Open
Abstract
Short-chain aliphatic esters are small volatile molecules that produce fruity and pleasant aromas and flavors. Most of these esters are artificially produced or extracted from natural sources at high cost. It is, however, possible to 'naturally' produce these molecules using biocatalysts such as lipases and esterases. A gene coding for a newly uncovered lipase was isolated from a previous metagenomic study and cloned into E. coli BL21 (DE3) for overexpression using the pET16b plasmid. Using this recombinant strain as a whole-cell biocatalyst, short chain esters were efficiently synthesized by transesterification and esterification reactions in organic media. The recombinant lipase (LipIAF5-2) showed good affinity toward glyceryl trioctanoate and the highest conversion yields were obtained for the transesterification of glyceryl triacetate with methanol. Using a simple cetyl-trimethylammonium bromide pretreatment increased the synthetic activity by a six-fold factor and the whole-cell biocatalyst showed the highest activity at 40°C with a relatively high water content of 10% (w/w). The whole-cell biocatalyst showed excellent tolerance to alcohol and short-chain fatty acid denaturation. Substrate affinity was equally effective with all primary alcohols tested as acyl acceptors, with a slight preference for methanol. The best transesterification conversion of 50 mmol glyceryl triacetate into isoamyl acetate (banana fragrance) provided near 100% yield after 24 hours using 10% biocatalyst loading (w/w) in a fluidized bed reactor, allowing recycling of the biocatalyst up to five times. These results show promising potential for an industrial approach aimed at the biosynthesis of short-chain esters, namely for natural flavor and fragrance production in micro-aqueous media.
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Affiliation(s)
- Guillaume Brault
- INRS-Institut Armand-Frappier, Université du Québec, Laval, Québec, Canada
| | - François Shareck
- INRS-Institut Armand-Frappier, Université du Québec, Laval, Québec, Canada
| | - Yves Hurtubise
- Innu-Science Canada, Inc., Local 119, Trois-Rivières, Québec, Canada
| | - François Lépine
- INRS-Institut Armand-Frappier, Université du Québec, Laval, Québec, Canada
| | - Nicolas Doucet
- INRS-Institut Armand-Frappier, Université du Québec, Laval, Québec, Canada
- PROTEO, the Québec Network for Research on Protein Function, Structure, and Engineering, Québec, Canada
- GRASP, Groupe de Recherche Axé sur la Structure des Protéines, Québec, Canada
- * E-mail:
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79
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Nie G, Zheng Z, Yue W, Liu Y, Liu H, Wang P, Zhao G, Cai W, Xue Z. One-pot bio-synthesis of propyl gallate by a novel whole-cell biocatalyst. Process Biochem 2014. [DOI: 10.1016/j.procbio.2013.11.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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80
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Brüning S, Weuster-Botz D. CFD analysis of interphase mass transfer and energy dissipation in a milliliter-scale stirred-tank reactor for filamentous microorganisms. Chem Eng Res Des 2014. [DOI: 10.1016/j.cherd.2013.07.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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81
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Haldar S, Kolet SP, Dandekar DS, Kale BS, Gonnade RG, Thulasiram HV. Biocatalyst mediated functionalization of salannin, an insecticidal limonoid. RSC Adv 2014. [DOI: 10.1039/c4ra04652h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel and efficient modification was achieved on the furan moiety of salannin by fungi mediated biocatalysis.
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Affiliation(s)
- Saikat Haldar
- Chemical Biology Unit
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune-411008, India
| | - Swati P. Kolet
- Chemical Biology Unit
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune-411008, India
| | - Devdutta S. Dandekar
- Chemical Biology Unit
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune-411008, India
| | - Balaji S. Kale
- Chemical Biology Unit
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune-411008, India
| | - Rajesh G. Gonnade
- Center for Materials Characterization
- CSIR-National Chemical Laboratory
- Pune-411008, India
| | - Hirekodathakallu V. Thulasiram
- Chemical Biology Unit
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune-411008, India
- CSIR-Institute of Genomics and Integrative Biology
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82
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Hossain GS, Li J, Shin HD, Chen RR, Du G, Liu L, Chen J. Bioconversion of l-glutamic acid to α-ketoglutaric acid by an immobilized whole-cell biocatalyst expressing l-amino acid deaminase from Proteus mirabilis. J Biotechnol 2014; 169:112-20. [DOI: 10.1016/j.jbiotec.2013.10.026] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 09/17/2013] [Accepted: 10/17/2013] [Indexed: 01/27/2023]
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83
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Yao Z, Zhang C, Zhao J, Lu F, Bie X, Lu Z. Acetaldehyde detoxification using resting cells of recombinant Escherichia coli overexpressing acetaldehyde dehydrogenase. Appl Biochem Biotechnol 2013; 172:2030-40. [PMID: 24326678 DOI: 10.1007/s12010-013-0632-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Accepted: 10/30/2013] [Indexed: 11/25/2022]
Abstract
Acetaldehyde dehydrogenase (E.C. 1.2.1.10) plays a key role in the acetaldehyde detoxification. The recombinant Escherichia coli cells producing acetaldehyde dehydrogenase (ist-ALDH) were applied as whole-cell biocatalysts for biodegradation of acetaldehyde. Response surface methodology (RSM) was employed to enhance the production of recombinant ist-ALDH. Under the optimum culture conditions containing 20.68 h post-induction time, 126.75 mL medium volume and 3 % (v/v) inoculum level, the maximum ist-ALDH activity reached 496.65 ± 0.81 U/mL, resulting in 12.5-fold increment after optimization. Furthermore, the optimum temperature and pH for the catalytic activity of wet cells were 40 °C and pH 9.5, respectively. The biocatalytic activity was improved 80 % by permeabilizing the recombinant cells with 0.075 % (v/v) Triton X-100. When using 2 mmol/L NAD(+) as coenzyme, the permeabilized cells could catalyze 98 % of acetaldehyde within 15 min. The results indicated that the recombinant E. coli with high productivity of ist-ALDH might be highly efficient and easy-to-make biocatalysts for acetaldehyde detoxification.
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Affiliation(s)
- Zhengying Yao
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, People's Republic of China
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84
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Klatte S, Lorenz E, Wendisch VF. Whole cell biotransformation for reductive amination reactions. Bioengineered 2013; 5:56-62. [PMID: 24406456 DOI: 10.4161/bioe.27151] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Whole cell biotransformation systems with enzyme cascading increasingly find application in biocatalysis to complement or replace established chemical synthetic routes for production of, e.g., fine chemicals. Recently, we established an Escherichia coli whole cell biotransformation system for reductive amination by coupling a transaminase and an amino acid dehydrogenase with glucose catabolism for cofactor recycling. Transformation of 2-keto-3-methylvalerate to l-isoleucine by E. coli cells was improved by genetic engineering of glucose metabolism for improved cofactor regeneration. Here, we compare this system with different strategies for cofactor regeneration such as cascading with alcohol dehydrogenases, with alternative production hosts such as Pseudomonas species or Corynebacterium glutamicum, and with improving whole cell biotransformation systems by metabolic engineering of NADPH regeneration.
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Affiliation(s)
- Stephanie Klatte
- Chair of Genetics of Prokaryotes; Faculty of Biology & CeBiTec; Bielefeld University; Bielefeld, Germany
| | - Elisabeth Lorenz
- Chair of Genetics of Prokaryotes; Faculty of Biology & CeBiTec; Bielefeld University; Bielefeld, Germany
| | - Volker F Wendisch
- Chair of Genetics of Prokaryotes; Faculty of Biology & CeBiTec; Bielefeld University; Bielefeld, Germany
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85
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Zheng JY, Wu JY, Zhang YJ, Wang Z. Resolution of (R, S)-ethyl-2-(4-hydroxyphenoxy) propanoate using lyophilized mycelium of Aspergillus oryzae WZ007. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.07.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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86
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Patel RN. Biocatalytic synthesis of chiral alcohols and amino acids for development of pharmaceuticals. Biomolecules 2013; 3:741-77. [PMID: 24970190 PMCID: PMC4030968 DOI: 10.3390/biom3040741] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 09/22/2013] [Accepted: 09/23/2013] [Indexed: 01/18/2023] Open
Abstract
Chirality is a key factor in the safety and efficacy of many drug products and thus the production of single enantiomers of drug intermediates and drugs has become increasingly important in the pharmaceutical industry. There has been an increasing awareness of the enormous potential of microorganisms and enzymes derived there from for the transformation of synthetic chemicals with high chemo-, regio- and enatioselectivities. In this article, biocatalytic processes are described for the synthesis of chiral alcohols and unntural aminoacids for pharmaceuticals.
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Affiliation(s)
- Ramesh N Patel
- SLRP Associates Consultation in Biotechnology, 572 Cabot Hill Road, Bridgewater, NJ 08807, USA.
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87
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Achmon Y, Ben-Barak Zelas Z, Fishman A. Cloning Rosa hybrid phenylacetaldehyde synthase for the production of 2-phenylethanol in a whole cell Escherichia coli system. Appl Microbiol Biotechnol 2013; 98:3603-11. [DOI: 10.1007/s00253-013-5269-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 09/12/2013] [Accepted: 09/14/2013] [Indexed: 10/26/2022]
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88
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Biocatalytic production of 5-hydroxy-2-adamantanone by P450cam coupled with NADH regeneration. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.05.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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89
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Engineered Escherichia coli with periplasmic carbonic anhydrase as a biocatalyst for CO2 sequestration. Appl Environ Microbiol 2013; 79:6697-705. [PMID: 23974145 DOI: 10.1128/aem.02400-13] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Carbonic anhydrase is an enzyme that reversibly catalyzes the hydration of carbon dioxide (CO2). It has been suggested recently that this remarkably fast enzyme can be used for sequestration of CO2, a major greenhouse gas, making this a promising alternative for chemical CO2 mitigation. To promote the economical use of enzymes, we engineered the carbonic anhydrase from Neisseria gonorrhoeae (ngCA) in the periplasm of Escherichia coli, thereby creating a bacterial whole-cell catalyst. We then investigated the application of this system to CO2 sequestration by mineral carbonation, a process with the potential to store large quantities of CO2. ngCA was highly expressed in the periplasm of E. coli in a soluble form, and the recombinant bacterial cell displayed the distinct ability to hydrate CO2 compared with its cytoplasmic ngCA counterpart and previously reported whole-cell CA systems. The expression of ngCA in the periplasm of E. coli greatly accelerated the rate of calcium carbonate (CaCO3) formation and exerted a striking impact on the maximal amount of CaCO3 produced under conditions of relatively low pH. It was also shown that the thermal stability of the periplasmic enzyme was significantly improved. These results demonstrate that the engineered bacterial cell with periplasmic ngCA can successfully serve as an efficient biocatalyst for CO2 sequestration.
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90
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Narancic T, Radivojevic J, Jovanovic P, Francuski D, Bigovic M, Maslak V, Savic V, Vasiljevic B, O'Connor KE, Nikodinovic-Runic J. Highly efficient Michael-type addition of acetaldehyde to β-nitrostyrenes by whole resting cells of Escherichia coli expressing 4-oxalocrotonate tautomerase. BIORESOURCE TECHNOLOGY 2013; 142:462-468. [PMID: 23759430 DOI: 10.1016/j.biortech.2013.05.074] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 05/17/2013] [Accepted: 05/18/2013] [Indexed: 06/02/2023]
Abstract
A novel whole cell system based on recombinantly expressed 4-oxalocrotonate tautomerase (4-OT) was developed and shown to be an effective biocatalyst for the asymmetric Michael addition of acetaldehyde to β-nitrostyrenes. Optimal ratio of substrates (2mM β-nitrostyrenes and 20mM acetaldehyde) and biocatalyst of 5 g of cell dry weight of biocatalyst per liter was determined. Through further bioprocess improvement by sequential addition of substrate 10mM nitrostyrene biotransformation was achieved within 150 min. Excellent enantioselectivity (>99% ee) and product yields of up to 60% were obtained with β-nitrostyrene substrate. The biotransformation product, 4-nitro-3-phenyl-butanal, was isolated from aqueous media and further transformed into the corresponding amino alcohol. The biocatalyst exhibited lower reaction rates with p-Cl-, o-Cl- and p-F-β-nitrostyrenes with product yields of 38%, 51%, 31% and ee values of 84%, 88% and 94% respectively. The importance of the terminal proline of 4-OT was confirmed by two proline enriched variants and homology modeling.
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Affiliation(s)
- Tanja Narancic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, P.O. Box No. 23, 11010 Belgrade, Serbia
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91
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Venkataraman S, Roy RK, Chadha A. Asymmetric Reduction of Alkyl-3-oxobutanoates by Candida parapsilosis ATCC 7330: Insights into Solvent and Substrate Optimisation of the Biocatalytic Reaction. Appl Biochem Biotechnol 2013; 171:756-70. [PMID: 23892621 DOI: 10.1007/s12010-013-0379-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Accepted: 07/01/2013] [Indexed: 10/26/2022]
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92
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Leitgeb M, Čolnik M, Primožič M, Zalar P, Cimerman NG, Knez Ž. Activity of cellulase and α-amylase from Hortaea werneckii after cell treatment with supercritical carbon dioxide. J Supercrit Fluids 2013. [DOI: 10.1016/j.supflu.2013.03.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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93
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Ošlaj M, Cluzeau J, Orkić D, Kopitar G, Mrak P, Časar Z. A highly productive, whole-cell DERA chemoenzymatic process for production of key lactonized side-chain intermediates in statin synthesis. PLoS One 2013; 8:e62250. [PMID: 23667462 PMCID: PMC3647077 DOI: 10.1371/journal.pone.0062250] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Accepted: 03/19/2013] [Indexed: 11/18/2022] Open
Abstract
Employing DERA (2-deoxyribose-5-phosphate aldolase), we developed the first whole-cell biotransformation process for production of chiral lactol intermediates useful for synthesis of optically pure super-statins such as rosuvastatin and pitavastatin. Herein, we report the development of a fed-batch, high-density fermentation with Escherichia coli BL21 (DE3) overexpressing the native E. coli deoC gene. High activity of this biomass allows direct utilization of the fermentation broth as a whole-cell DERA biocatalyst. We further show a highly productive bioconversion processes with this biocatalyst for conversion of 2-substituted acetaldehydes to the corresponding lactols. The process is evaluated in detail for conversion of acetyloxy-acetaldehyde with the first insight into the dynamics of reaction intermediates, side products and enzyme activity, allowing optimization of the feeding strategy of the aldehyde substrates for improved productivities, yields and purities. The resulting process for production of ((2S,4R)-4,6-dihydroxytetrahydro-2H-pyran-2-yl)methyl acetate (acetyloxymethylene-lactol) has a volumetric productivity exceeding 40 g L−1 h−1 (up to 50 g L−1 h−1) with >80% yield and >80% chromatographic purity with titers reaching 100 g L−1. Stereochemical selectivity of DERA allows excellent enantiomeric purities (ee >99.9%), which were demonstrated on downstream advanced intermediates. The presented process is highly cost effective and environmentally friendly. To our knowledge, this is the first asymmetric aldol condensation process achieved with whole-cell DERA catalysis and it simplifies and extends previously developed DERA-catalyzed approaches based on the isolated enzyme. Finally, applicability of the presented process is demonstrated by efficient preparation of a key lactol precursor, which fits directly into the lactone pathway to optically pure super-statins.
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Affiliation(s)
- Matej Ošlaj
- Genetics, Anti-Infectives, Lek Pharmaceuticals d.d., Mengeš, Slovenia
| | - Jérôme Cluzeau
- API Development, Sandoz Development Center Slovenia, Lek Pharmaceuticals d.d., Mengeš, Slovenia
| | - Damir Orkić
- API Development, Sandoz Development Center Slovenia, Lek Pharmaceuticals d.d., Mengeš, Slovenia
| | - Gregor Kopitar
- Genetics, Anti-Infectives, Lek Pharmaceuticals d.d., Mengeš, Slovenia
| | - Peter Mrak
- Genetics, Anti-Infectives, Lek Pharmaceuticals d.d., Mengeš, Slovenia
- * E-mail: (PM); (ZC)
| | - Zdenko Časar
- API Development, Sandoz Development Center Slovenia, Lek Pharmaceuticals d.d., Mengeš, Slovenia
- Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
- * E-mail: (PM); (ZC)
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94
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Lim JH, Seo SW, Kim SY, Jung GY. Refactoring redox cofactor regeneration for high-yield biocatalysis of glucose to butyric acid in Escherichia coli. BIORESOURCE TECHNOLOGY 2013; 135:568-73. [PMID: 23127832 DOI: 10.1016/j.biortech.2012.09.091] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2012] [Revised: 09/23/2012] [Accepted: 09/25/2012] [Indexed: 05/20/2023]
Abstract
In this study, the native redox cofactor regeneration system in Escherichia coli was engineered for the production of butyric acid. The synthetic butyrate pathway, which regenerates NAD(+) from NADH using butyrate as the only final electron acceptor, enabled high-yield production of butyric acid from glucose (83.4% of the molar theoretical yield). The high selectivity for butyrate, with a butyrate/acetate ratio of 41, suggests dramatically improved industrial potential for the production of butyric acid from nonnative hosts compared to the native producers (Clostridium species). Furthermore, this strategy could be broadly utilized for the production of various other useful chemicals in the fields of metabolic engineering and synthetic biology.
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Affiliation(s)
- Jae Hyung Lim
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, San 31, Hyoja-dong, Nam-gu, Pohang, Gyeongbuk 790-784, South Korea
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95
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Fan L, Dong Y, Xu T, Zhang H, Chen Q. Gastrodin Production from p-2-Hydroxybenzyl Alcohol Through Biotransformation by Cultured Cells of Aspergillus foetidus and Penicillium cyclopium. Appl Biochem Biotechnol 2013; 170:138-48. [DOI: 10.1007/s12010-013-0166-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2012] [Accepted: 02/24/2013] [Indexed: 11/24/2022]
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96
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Production of cyclic adenosine-3′,5′-monophosphate by whole cell catalysis using recombinant Escherichia coli overexpressing adenylate cyclase. KOREAN J CHEM ENG 2013. [DOI: 10.1007/s11814-012-0202-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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97
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Saravanan T, Selvakumar R, Doble M, Chadha A. Stereochemical preference of Candida parapsilosis ATCC 7330 mediated deracemization: E- versus Z-aryl secondary alcohols. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.09.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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98
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De Benedetti EC, Rivero CW, Britos CN, Lozano ME, Trelles JA. Biotransformation of 2,6-diaminopurine nucleosides by immobilized Geobacillus stearothermophilus. Biotechnol Prog 2012; 28:1251-6. [PMID: 22837142 DOI: 10.1002/btpr.1602] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 07/13/2012] [Indexed: 01/07/2023]
Abstract
An efficient and green bioprocess to obtain 2,6-diaminopurine nucleosides using thermophilic bacteria is herein reported. Geobacillus stearothermophilus CECT 43 showed a conversion rate of 90 and 83% at 2 h to obtain 2,6-diaminopurine-2'-deoxyriboside and 2,6-diaminopurine riboside, respectively. The selected biocatalyst was successfully stabilized in an agarose matrix and used to produce up to 23.4 g of 2,6-diaminopurine-2'-deoxyriboside in 240 h of process. These nucleoside analogues can be used as prodrug precursors or in antisense oligonucleotide synthesis.
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Affiliation(s)
- Eliana C De Benedetti
- Laboratorio de Investigaciones en Biotecnología Sustentable, Universidad Nacional de Quilmes, Roque Saenz Peña 352, Bernal B1868BXD, Argentina
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99
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Reductive whole-cell biotransformation with Corynebacterium glutamicum: improvement of NADPH generation from glucose by a cyclized pentose phosphate pathway using pfkA and gapA deletion mutants. Appl Microbiol Biotechnol 2012; 97:143-52. [PMID: 22851018 PMCID: PMC3536970 DOI: 10.1007/s00253-012-4314-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 07/16/2012] [Accepted: 07/16/2012] [Indexed: 11/02/2022]
Abstract
In this study, the potential of Corynebacterium glutamicum for reductive whole-cell biotransformation is shown. The NADPH-dependent reduction of the prochiral methyl acetoacetate (MAA) to the chiral (R)-methyl 3-hydroxybutyrate (MHB) by an alcohol dehydrogenase from Lactobacillus brevis (Lbadh) was used as model reaction and glucose served as substrate for the regeneration of NADPH. Since NADPH is mainly formed in the oxidative branch of the pentose phosphate pathway (PPP), C. glutamicum was engineered to redirect carbon flux towards the PPP. Mutants lacking the genes for 6-phosphofructokinase (pfkA) or glyceraldehyde 3-phosphate dehydrogenase (gapA) were constructed and analyzed with respect to growth, enzyme activities, and biotransformation performance. Both mutants showed strong growth defects in glucose minimal medium. For biotransformation of MAA to MHB using glucose as reductant, strains were transformed with an Lbadh expression plasmid. The wild type showed a specific MHB production rate of 3.1 mmol(MHB) h(-1) g (cdw) (-1) and a yield of 2.7 mol(MHB) mol (glucose) (-1) . The ∆pfkA mutant showed a similar MHB production rate, but reached a yield of 4.8 mol(MHB) mol (glucose) (-1) , approaching the maximal value of 6 mol(NADPH) mol (glucose) (-1) expected for a partially cyclized PPP. The specific biotransformation rate of the ΔgapA mutant was decreased by 62 % compared to the other strains, but the yield was increased to 7.9 mol(MHB) mol (glucose) (-1) , which to our knowledge is the highest one reported so far for this mode of NADPH regeneration. As one fourth of the glucose was converted to glycerol, the experimental yield was close to the theoretically maximal yield of 9 mol(NADPH) mol (glucose) (-1) .
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100
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Pawar SV, Meena VS, Kaushik S, Kamble A, Kumar S, Chisti Y, Banerjee UC. Stereo-selective conversion of mandelonitrile to (R)-(−)-mandelic acid using immobilized cells of recombinant Escherichia coli. 3 Biotech 2012. [PMCID: PMC3482447 DOI: 10.1007/s13205-012-0058-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Immobilized cells of a recombinant Escherichia coli expressing nitrilase from Pseudomonas putida were used to catalyze the hydrolysis of mandelonitrile (2-hydroxy-2-phenylacetonitrile) to (R)-(−)-mandelic acid. The cells had been immobilized by entrapment in an alginate matrix. Conditions for the hydrolysis reaction were optimized in shake flasks and in a packed bed reactor. In shake flasks the best conditions for the reaction were a temperature of 40 °C, pH 8, biocatalyst bead diameter of 4.3 mm, sodium alginate concentration in the gel matrix of 2 % (w/v, g/100 mL), a cell dry mass concentration in the bead matrix of 20 mg/mL, an initial substrate concentration of 50 mM and a reaction time of 60 min. Under these conditions, the conversion of mandelonitrile was nearly 95 %. In the packed bed reactor, a feed flow rate of 20 mL/h at a substrate concentration of 200 mM proved to be the best at 40 °C, pH 8, using 4.3 mm beads (2 % w/v sodium alginate in the gel matrix, 20 mg dry cell concentration per mL of gel matrix). This feed flow rate corresponded to a residence time of 0.975 h in the packed bed.
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Affiliation(s)
- Sandip V. Pawar
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, SAS Nagar, 160 062 Punjab, India
| | - Vachan Singh Meena
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, SAS Nagar, 160 062 Punjab, India
| | - Shubhangi Kaushik
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, SAS Nagar, 160 062 Punjab, India
| | - Ashwini Kamble
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, SAS Nagar, 160 062 Punjab, India
| | - Sandeep Kumar
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, SAS Nagar, 160 062 Punjab, India
| | - Yusuf Chisti
- School of Engineering, Massey University, Private Bag 11 222, Palmerston North, New Zealand
| | - U. C. Banerjee
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, SAS Nagar, 160 062 Punjab, India
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