Elimination of D-lactate synthesis increases poly(3-hydroxybutyrate) and ethanol synthesis from glycerol and affects cofactor distribution in recombinant Escherichia coli

Autores
Nikel, P.I.; Giordano, A.M.; De Almeida, A.; Godoy, M.S.; Pettinari, M.J.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effect of eliminating D-lactate synthesis in poly(3-hydroxybutyrate) (PHB)-accumulating recombinant Escherichia coli (K24K) was analyzed using glycerol as a substrate. K24KL, an ldhA derivative, produced more biomass and had altered carbon partitioning among the metabolic products, probably due to the increased availability of carbon precursors and reducing power. This resulted in a significant increase of PHB and ethanol synthesis and a decrease in acetate production. Cofactor measurements revealed that cultures of K24K and K24KL had a high intracellular NADPH content and that the NADPH/NADP+ ratio was higher than the NADH/NAD+ ratio. The ldhA mutation affected cofactor distribution, resulting in a more reduced intracellular state, mainly due to a further increase in NADPH/NADP+. In 60-h fed-batch cultures, K24KL reached 41.9 g · liter-1 biomass and accumulated PHB up to 63% ± 1% (wt/wt), with a PHB yield on glycerol of 0.41 ± 0.03 g · g-1, the highest reported using this substrate. © 2010, American Society for Microbiology.
Fil:De Almeida, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Pettinari, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fuente
Appl. Environ. Microbiol. 2010;76(22):7400-7406
Materia
Carbon partitioning
Carbon precursors
Cofactors
D-lactate
Fed-batch cultures
Metabolic products
Poly(3-hydroxybutyrate)
Recombinant Escherichia coli
Reducing power
Batch cell culture
Escherichia coli
Ethanol
Substrates
Glycerol
alcohol
carbon
glycerol
hydroxybutyric acid
lactate dehydrogenase
lactic acid
nicotinamide adenine dinucleotide
nicotinamide adenine dinucleotide phosphate
poly(3 hydroxybutyric acid)
poly-beta-hydroxybutyrate
polyester
alcohol
biomass
ester
ethanol
fecal coliform
partitioning
recombination
article
biomass
bioreactor
chemistry
Escherichia coli
genetics
growth, development and aging
metabolism
time
Biomass
Bioreactors
Carbon
Escherichia coli
Ethanol
Glycerol
Hydroxybutyrates
Lactate Dehydrogenases
Lactic Acid
Metabolic Networks and Pathways
NAD
NADP
Polyesters
Time Factors
Escherichia coli
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
paperaa:paper_00992240_v76_n22_p7400_Nikel

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oai_identifier_str paperaa:paper_00992240_v76_n22_p7400_Nikel
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling Elimination of D-lactate synthesis increases poly(3-hydroxybutyrate) and ethanol synthesis from glycerol and affects cofactor distribution in recombinant Escherichia coliNikel, P.I.Giordano, A.M.De Almeida, A.Godoy, M.S.Pettinari, M.J.Carbon partitioningCarbon precursorsCofactorsD-lactateFed-batch culturesMetabolic productsPoly(3-hydroxybutyrate)Recombinant Escherichia coliReducing powerBatch cell cultureEscherichia coliEthanolSubstratesGlycerolalcoholcarbonglycerolhydroxybutyric acidlactate dehydrogenaselactic acidnicotinamide adenine dinucleotidenicotinamide adenine dinucleotide phosphatepoly(3 hydroxybutyric acid)poly-beta-hydroxybutyratepolyesteralcoholbiomassesterethanolfecal coliformpartitioningrecombinationarticlebiomassbioreactorchemistryEscherichia coligeneticsgrowth, development and agingmetabolismtimeBiomassBioreactorsCarbonEscherichia coliEthanolGlycerolHydroxybutyratesLactate DehydrogenasesLactic AcidMetabolic Networks and PathwaysNADNADPPolyestersTime FactorsEscherichia coliThe effect of eliminating D-lactate synthesis in poly(3-hydroxybutyrate) (PHB)-accumulating recombinant Escherichia coli (K24K) was analyzed using glycerol as a substrate. K24KL, an ldhA derivative, produced more biomass and had altered carbon partitioning among the metabolic products, probably due to the increased availability of carbon precursors and reducing power. This resulted in a significant increase of PHB and ethanol synthesis and a decrease in acetate production. Cofactor measurements revealed that cultures of K24K and K24KL had a high intracellular NADPH content and that the NADPH/NADP+ ratio was higher than the NADH/NAD+ ratio. The ldhA mutation affected cofactor distribution, resulting in a more reduced intracellular state, mainly due to a further increase in NADPH/NADP+. In 60-h fed-batch cultures, K24KL reached 41.9 g · liter-1 biomass and accumulated PHB up to 63% ± 1% (wt/wt), with a PHB yield on glycerol of 0.41 ± 0.03 g · g-1, the highest reported using this substrate. © 2010, American Society for Microbiology.Fil:De Almeida, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Pettinari, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_00992240_v76_n22_p7400_NikelAppl. Environ. Microbiol. 2010;76(22):7400-7406reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-09-29T13:43:09Zpaperaa:paper_00992240_v76_n22_p7400_NikelInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-09-29 13:43:10.371Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Elimination of D-lactate synthesis increases poly(3-hydroxybutyrate) and ethanol synthesis from glycerol and affects cofactor distribution in recombinant Escherichia coli
title Elimination of D-lactate synthesis increases poly(3-hydroxybutyrate) and ethanol synthesis from glycerol and affects cofactor distribution in recombinant Escherichia coli
spellingShingle Elimination of D-lactate synthesis increases poly(3-hydroxybutyrate) and ethanol synthesis from glycerol and affects cofactor distribution in recombinant Escherichia coli
Nikel, P.I.
Carbon partitioning
Carbon precursors
Cofactors
D-lactate
Fed-batch cultures
Metabolic products
Poly(3-hydroxybutyrate)
Recombinant Escherichia coli
Reducing power
Batch cell culture
Escherichia coli
Ethanol
Substrates
Glycerol
alcohol
carbon
glycerol
hydroxybutyric acid
lactate dehydrogenase
lactic acid
nicotinamide adenine dinucleotide
nicotinamide adenine dinucleotide phosphate
poly(3 hydroxybutyric acid)
poly-beta-hydroxybutyrate
polyester
alcohol
biomass
ester
ethanol
fecal coliform
partitioning
recombination
article
biomass
bioreactor
chemistry
Escherichia coli
genetics
growth, development and aging
metabolism
time
Biomass
Bioreactors
Carbon
Escherichia coli
Ethanol
Glycerol
Hydroxybutyrates
Lactate Dehydrogenases
Lactic Acid
Metabolic Networks and Pathways
NAD
NADP
Polyesters
Time Factors
Escherichia coli
title_short Elimination of D-lactate synthesis increases poly(3-hydroxybutyrate) and ethanol synthesis from glycerol and affects cofactor distribution in recombinant Escherichia coli
title_full Elimination of D-lactate synthesis increases poly(3-hydroxybutyrate) and ethanol synthesis from glycerol and affects cofactor distribution in recombinant Escherichia coli
title_fullStr Elimination of D-lactate synthesis increases poly(3-hydroxybutyrate) and ethanol synthesis from glycerol and affects cofactor distribution in recombinant Escherichia coli
title_full_unstemmed Elimination of D-lactate synthesis increases poly(3-hydroxybutyrate) and ethanol synthesis from glycerol and affects cofactor distribution in recombinant Escherichia coli
title_sort Elimination of D-lactate synthesis increases poly(3-hydroxybutyrate) and ethanol synthesis from glycerol and affects cofactor distribution in recombinant Escherichia coli
dc.creator.none.fl_str_mv Nikel, P.I.
Giordano, A.M.
De Almeida, A.
Godoy, M.S.
Pettinari, M.J.
author Nikel, P.I.
author_facet Nikel, P.I.
Giordano, A.M.
De Almeida, A.
Godoy, M.S.
Pettinari, M.J.
author_role author
author2 Giordano, A.M.
De Almeida, A.
Godoy, M.S.
Pettinari, M.J.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Carbon partitioning
Carbon precursors
Cofactors
D-lactate
Fed-batch cultures
Metabolic products
Poly(3-hydroxybutyrate)
Recombinant Escherichia coli
Reducing power
Batch cell culture
Escherichia coli
Ethanol
Substrates
Glycerol
alcohol
carbon
glycerol
hydroxybutyric acid
lactate dehydrogenase
lactic acid
nicotinamide adenine dinucleotide
nicotinamide adenine dinucleotide phosphate
poly(3 hydroxybutyric acid)
poly-beta-hydroxybutyrate
polyester
alcohol
biomass
ester
ethanol
fecal coliform
partitioning
recombination
article
biomass
bioreactor
chemistry
Escherichia coli
genetics
growth, development and aging
metabolism
time
Biomass
Bioreactors
Carbon
Escherichia coli
Ethanol
Glycerol
Hydroxybutyrates
Lactate Dehydrogenases
Lactic Acid
Metabolic Networks and Pathways
NAD
NADP
Polyesters
Time Factors
Escherichia coli
topic Carbon partitioning
Carbon precursors
Cofactors
D-lactate
Fed-batch cultures
Metabolic products
Poly(3-hydroxybutyrate)
Recombinant Escherichia coli
Reducing power
Batch cell culture
Escherichia coli
Ethanol
Substrates
Glycerol
alcohol
carbon
glycerol
hydroxybutyric acid
lactate dehydrogenase
lactic acid
nicotinamide adenine dinucleotide
nicotinamide adenine dinucleotide phosphate
poly(3 hydroxybutyric acid)
poly-beta-hydroxybutyrate
polyester
alcohol
biomass
ester
ethanol
fecal coliform
partitioning
recombination
article
biomass
bioreactor
chemistry
Escherichia coli
genetics
growth, development and aging
metabolism
time
Biomass
Bioreactors
Carbon
Escherichia coli
Ethanol
Glycerol
Hydroxybutyrates
Lactate Dehydrogenases
Lactic Acid
Metabolic Networks and Pathways
NAD
NADP
Polyesters
Time Factors
Escherichia coli
dc.description.none.fl_txt_mv The effect of eliminating D-lactate synthesis in poly(3-hydroxybutyrate) (PHB)-accumulating recombinant Escherichia coli (K24K) was analyzed using glycerol as a substrate. K24KL, an ldhA derivative, produced more biomass and had altered carbon partitioning among the metabolic products, probably due to the increased availability of carbon precursors and reducing power. This resulted in a significant increase of PHB and ethanol synthesis and a decrease in acetate production. Cofactor measurements revealed that cultures of K24K and K24KL had a high intracellular NADPH content and that the NADPH/NADP+ ratio was higher than the NADH/NAD+ ratio. The ldhA mutation affected cofactor distribution, resulting in a more reduced intracellular state, mainly due to a further increase in NADPH/NADP+. In 60-h fed-batch cultures, K24KL reached 41.9 g · liter-1 biomass and accumulated PHB up to 63% ± 1% (wt/wt), with a PHB yield on glycerol of 0.41 ± 0.03 g · g-1, the highest reported using this substrate. © 2010, American Society for Microbiology.
Fil:De Almeida, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Pettinari, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
description The effect of eliminating D-lactate synthesis in poly(3-hydroxybutyrate) (PHB)-accumulating recombinant Escherichia coli (K24K) was analyzed using glycerol as a substrate. K24KL, an ldhA derivative, produced more biomass and had altered carbon partitioning among the metabolic products, probably due to the increased availability of carbon precursors and reducing power. This resulted in a significant increase of PHB and ethanol synthesis and a decrease in acetate production. Cofactor measurements revealed that cultures of K24K and K24KL had a high intracellular NADPH content and that the NADPH/NADP+ ratio was higher than the NADH/NAD+ ratio. The ldhA mutation affected cofactor distribution, resulting in a more reduced intracellular state, mainly due to a further increase in NADPH/NADP+. In 60-h fed-batch cultures, K24KL reached 41.9 g · liter-1 biomass and accumulated PHB up to 63% ± 1% (wt/wt), with a PHB yield on glycerol of 0.41 ± 0.03 g · g-1, the highest reported using this substrate. © 2010, American Society for Microbiology.
publishDate 2010
dc.date.none.fl_str_mv 2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12110/paper_00992240_v76_n22_p7400_Nikel
url http://hdl.handle.net/20.500.12110/paper_00992240_v76_n22_p7400_Nikel
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Appl. Environ. Microbiol. 2010;76(22):7400-7406
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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