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Showing 1-30 of 43 results for "237639" within Papers
Sung-Geun Jung et al.
Applied microbiology and biotechnology, 97(5), 1997-2007 (2012-07-27)
Klebsiella species are the most extensively studied among a number of 2,3-butanediol (2,3-BDO)-producing microorganisms. The ability to metabolize a wide variety of substrates together with the ease of cultivation made this microorganisms particularly promising for the application in industrial-scale production
Jong Myoung Park et al.
Microbial cell factories, 12, 20-20 (2013-02-26)
Klebsiella oxytoca, a Gram-negative, rod-shaped, and facultative anaerobic bacterium, is one of the most promising 2,3-butanediol (2,3-BD) producers. In order to improve the metabolic performance of K. oxytoca as an efficient biofactory, it is necessary to assess its metabolic characteristics
Xiaolin Shen et al.
Journal of industrial microbiology & biotechnology, 39(11), 1725-1729 (2012-07-27)
This work describes the production of (R,R)-2,3-butanediol in Escherichia coli using glycerol by metabolic engineering approaches. The introduction of a synthetic pathway converting pyruvate to (R,R)-2,3-butanediol into wild-type E. coli strain BW25113 led to the production of (R,R)-2,3-butanediol at a
Meng Wang et al.
Biotechnology letters, 34(10), 1877-1885 (2012-06-21)
Acetoin is widely used in food and other industries. A bdhA and acoA double-knockout strain of Bacillus subtilis produced acetoin at 0.72 mol/mol, a 16.4 % increased compared to the wild type. Subsequent overexpression of the alsSD operon enhanced the
Predominant Conformations of (2 R, 3 R)-(-)-2, 3-Butanediol.
Wang F and Polavarapu PL.
The Journal of Physical Chemistry A, 105(29), 6991-6997 (2001)
Burk, M.J. et al.
Tetrahedron Asymmetry, 2, 569-569 (1991)
Yuanzhi He et al.
Molecules (Basel, Switzerland), 23(3) (2018-03-23)
(3S)-Acetoin and (2S,3S)-2,3-butanediol are important platform chemicals widely applied in the asymmetric synthesis of valuable chiral chemicals. However, their production by fermentative methods is difficult to perform. This study aimed to develop a whole-cell biocatalysis strategy for the production of
David P Eisenberg et al.
Cryobiology, 65(2), 117-125 (2012-05-15)
This study explores physical effects associated with the application of cryopreservation via vitrification using a class of compounds which are defined here as synthetic ice modulators (SIMs). The general classification of SIMs includes molecules that modulate ice nucleation and growth
John W K Oliver et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(4), 1249-1254 (2013-01-09)
Conversion of CO(2) for the synthesis of chemicals by photosynthetic organisms is an attractive target for establishing independence from fossil reserves. However, synthetic pathway construction in cyanobacteria is still in its infancy compared with model fermentative organisms. Here we systematically
Jinshan Li et al.
Applied microbiology and biotechnology, 97(2), 585-597 (2012-08-07)
Paenibacillus polymyxa can produce the (R,R)-stereoisomer of 2,3-butanediol (2,3-BDL) which is industrially very useful. Two important factors affecting (R,R)-BDL production by P. polymyxa ATCC 12321, medium composition, and addition of acetic acid to the culture were investigated in this study
Sangjun Jeon et al.
Journal of bioscience and bioengineering, 117(4), 464-470 (2013-10-23)
This study presents a new and effective downstream process to recover 2,3-butanediol (2,3-BD) from fermentation broth which is produced by a recombinant Klebsiella pneumoniae strain. The ldhA-deficient K. pneumoniae strain yielded about 90 g/L of 2,3-BD, along with a number
Eduard Calam et al.
Chemico-biological interactions, 202(1-3), 195-203 (2013-01-09)
The α-hydroxy ketones are used as building blocks for compounds of pharmaceutical interest (such as antidepressants, HIV-protease inhibitors and antitumorals). They can be obtained by the action of enzymes or whole cells on selected substrates, such as diketones. We have
Gen Lin Zhang et al.
Biotechnology letters, 34(8), 1519-1523 (2012-05-02)
The budC gene encoding the meso-2,3-BDH from Klebsiella pneumoniae XJ-Li was expressed in E. coli BL21 (DE3) pLys. Hypothetical amino acid sequence alignments revealed that the enzyme belongs to the short chain dehydrogenase/reductase family. After purification and refolding, the recombinant
Yuansheng Xue et al.
Sheng wu gong cheng xue bao = Chinese journal of biotechnology, 27(12), 1742-1748 (2012-04-18)
The production of 2, 3-butanediol and succinic acid by a moderate halophile under anaerobic condition was investigated. This halophile, termed Salinivibrio YS, was isolated from the solid samples collected from Aydingkol Lake. Based on the single factor experiment, the parameters
Hyun-Dong Shin et al.
Bioresource technology, 118, 367-373 (2012-06-19)
Escherichia coli has been engineered to produce a variety of biofuel and biorefinery products. However, it can only produce these products from simple sugars, requiring large amounts of enzymes to depolymerize cellulose into monomer sugars. Engineering E. coli to directly
Mingshou Lu et al.
Journal of microbiology and biotechnology, 22(5), 659-667 (2012-05-09)
2,3-Butanediol (2,3-BDO) is an organic compound with a wide range of industrial applications. Although Escherichia coli is often used for the production of organic compounds, the wild-type E. coli does not contain two essential genes in the 2,3-BDO biosynthesis pathway
Journal of the American Chemical Society, 115, 4602-4602 (1993)
Lixiang Li et al.
Journal of bacteriology, 194(15), 4133-4134 (2012-07-21)
Both Bacillus licheniformis strains 10-1-A and 5-2-D are efficient producers of 2,3-butanediol. Here we present 4.3-Mb and 4.2-Mb assemblies of their genomes. The key genes for the regulation and metabolism of 2,3-butanediol production were annotated, which may provide further insights
Synlett, 275-275 (1993)
Chiam Yu Ng et al.
Microbial cell factories, 11, 68-68 (2012-05-30)
2,3-Butanediol is a chemical compound of increasing interest due to its wide applications. It can be synthesized via mixed acid fermentation of pathogenic bacteria such as Enterobacter aerogenes and Klebsiella oxytoca. The non-pathogenic Saccharomyces cerevisiae possesses three different 2,3-butanediol biosynthetic
Ailong Wang et al.
PloS one, 7(7), e40442-e40442 (2012-07-14)
2,3-Butanediol (BD) is considered as one of the key platform chemicals used in a variety of industrial applications. It is crucial to find an efficient sugar-utilizing strain and feasible carbon source for the economical production of BD. Efficient BD production
Taowei Yang et al.
World journal of microbiology & biotechnology, 28(4), 1563-1574 (2012-07-19)
The effects of culture conditions on 2,3-butanediol (2,3-BD) production and its possible scale-up have been studied. A newly isolated Bacillus amyloliquefaciens B10-127, belonged to GRAS microorganisms and showed a remarkable 2,3-BD producing potency, was used for this experiment. Corn steep
Matteson, D.S. Man, H.-W.
The Journal of Organic Chemistry, 59, 5734-5734 (1994)
Pichon, M. Figadere, B.
Tetrahedron Asymmetry, 7, 927-927 (1996)
Magalie Celton et al.
Metabolic engineering, 14(4), 366-379 (2012-06-20)
Controlling the amounts of redox cofactors to manipulate metabolic fluxes is emerging as a useful approach to optimizing byproduct yields in yeast biotechnological processes. Redox cofactors are extensively interconnected metabolites, so predicting metabolite patterns is challenging and requires in-depth knowledge
Tetrahedron Asymmetry, 17, 993-993 (2006)
Natalia Malfanova et al.
Archives of microbiology, 195(1), 9-17 (2012-09-08)
Twenty endophytic bacteria were isolated from surface-sterilized stems and roots of cucumber plants. After removal of potential siblings and human pathogens, the remaining seven strains were identified based on their 16S rDNA as Pseudomonas fluorescens (2 strains) and P. putida
Thomas Häßler et al.
Bioresource technology, 124, 237-244 (2012-09-20)
Fed-batch fermentations for the production of 2,3-butanediol (BDL) with Paenibacillus polymyxa DSM 365 were investigated in 2-L-fermenters. A suitable micro-aerobic set-up enabled high product selectivity of up to 98% R,R-BDL towards meso-BDL and acetoin. Up to 111 g L(-1)R,R-BDL within
Ho, O.C. et al.
Organometallics, 14, 2855-2855 (1995)
Yuzhen Zhang et al.
Bioresource technology, 121, 100-104 (2012-08-04)
Pretreatment is necessary for lignocellulose to achieve a highly efficient enzymatic hydrolysis and fermentation. However, coincident with pretreatment, compounds inhibiting microorganism growth are formed. Some tissues or cells, such as thin-walled cells that easily hydrolyze, will be excessively degraded because
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