Results 211 to 220 of about 11,026 (229)
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Biotechnology and Bioprocess Engineering, 2000
Simultaneous isomerisation and fermentation (SIF) of xylose and simultaneous isomerisation and cofermentation (SICF) of glucose-xylose mixture was carried out by the yeastSaccharomyces cerevisiae in the presence of a compatible xylose isomerase. The enzyme converted xylose to xylulose andS.
Priya Chandrakant, Virendra S. Bisaria
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Simultaneous isomerisation and fermentation (SIF) of xylose and simultaneous isomerisation and cofermentation (SICF) of glucose-xylose mixture was carried out by the yeastSaccharomyces cerevisiae in the presence of a compatible xylose isomerase. The enzyme converted xylose to xylulose andS.
Priya Chandrakant, Virendra S. Bisaria
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Applied Microbiology and Biotechnology, 2000
Simultaneous isomerisation and fermentation (SIF) of xylose and simultaneous isomerisation and cofermentation (SICF) of a glucose/xylose mixture was carried out by Saccharomyces cerevisiae in the presence of xylose isomerase. The SIF of 50 g I(-1) xylose gave an ethanol concentration and metabolic yield of 7.5 g l(-1) and 0.36 g (g xylose consumed)(-1).
Virendra S. Bisaria, P. Chandrakant
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Simultaneous isomerisation and fermentation (SIF) of xylose and simultaneous isomerisation and cofermentation (SICF) of a glucose/xylose mixture was carried out by Saccharomyces cerevisiae in the presence of xylose isomerase. The SIF of 50 g I(-1) xylose gave an ethanol concentration and metabolic yield of 7.5 g l(-1) and 0.36 g (g xylose consumed)(-1).
Virendra S. Bisaria, P. Chandrakant
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Streptomyces glucose/xylose isomerase has a single active site for glucose and xylose
Biochemical and Biophysical Research Communications, 1989A kinetic method which allows one to evaluate whether an enzyme acting on two different substrates has one or two active sites was employed to study the active site of glucose isomerase which catalyses the isomerization of both glucose and xylose. The experimental data on the rates of hydrolysis of mixtures of various concentrations of glucose and ...
Vasanti Deshpande +3 more
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Immunoaffinity purification of glucose/xylose isomerase fromStreptomyces
Applied Biochemistry and Biotechnology, 1991A procedure was developed to purify glucose/xylose isomerase from cell extract of Streptomyces sp. NCIM 2730 using immunoaffinity chromatography. High-titer polyclonal antibodies were raised in rabbit using electrophoretically homogeneous glucose/xylose isomerase as an antigen.
Yogesh R. Mawal +3 more
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A Plate Method to Screen for Microorganisms Producing Xylose Isomerase [PDF]
Microbiology, 2004 A plate method was developed to screen for xylose isomerase-producing microorganisms based on the use of 2,3,5-triphenyltetrazolium as an indicator of D-xylulose, the D-xylose isomerization product. The use of this method allows microorganisms to be differentiated by the character of the enzyme synthesis (inducible or constitutive).
L. I. Sapunova +3 more
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1966
Publisher Summary This chpater discusses the determination of D-xylose isomerase. The assay method commonly used is based on the determination of the xylulose formed in the reaction by cysteine–carbazole test. One unit is defined as the amount of enzyme required to produce one micromole of D-xylulose in 10 minutes of incubation.
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Publisher Summary This chpater discusses the determination of D-xylose isomerase. The assay method commonly used is based on the determination of the xylulose formed in the reaction by cysteine–carbazole test. One unit is defined as the amount of enzyme required to produce one micromole of D-xylulose in 10 minutes of incubation.
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Biological Chemistry Hoppe-Seyler, 1990
The D-xylose isomerase from T. aquaticus accepts, besides D-xylose, also D-glucose, and, with lower efficiency, D-ribose, and D-arabinose as alternative substrates. The activity of the enzyme is strictly dependent on divalent cations. Mn2+ is most effective in the D-xylose isomerase reaction and Co2+ in the D-glucose isomerization.
Hans Bisswanger, Anselm Lehmacher
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The D-xylose isomerase from T. aquaticus accepts, besides D-xylose, also D-glucose, and, with lower efficiency, D-ribose, and D-arabinose as alternative substrates. The activity of the enzyme is strictly dependent on divalent cations. Mn2+ is most effective in the D-xylose isomerase reaction and Co2+ in the D-glucose isomerization.
Hans Bisswanger, Anselm Lehmacher
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Fermentation of lignocellulose hydrolysates with yeasts and xylose isomerase
Enzyme and Microbial Technology, 1989Untreated spent sulfite liquor (SSL) was fermented with five yeasts, Candida tropicalis, Pichia stipitis, Pachysolen tannophilus, Schizosaccharomyces pombe, Saccharomyces cerevisiae, and a co-culture of P. tannophilus and S. cerevisiae, in the presence of commercial xylose (glucose) isomerases and 4.6 mM azide.
Bärbel Hahn-Hägerdal +1 more
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Plant selection principle based on xylose isomerase
In Vitro Cellular & Developmental Biology - Plant, 2001The xylose isomerase genes (xylA) from Thermoanaerobacterium thermosulfurogenes and Streptomyces rubiginosus were introduced and expressed in three plant species (potato, tobacco and tomato) and transgenic plants were selected on xylose-containing medium.
Haldrup, Anna +2 more
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Catabolite repression of xylose isomerase synthesis in Arthrobacter ureafaciens
Microbiology, 2008The effect of a specific substrate as well as other carbon sources on the biosynthesis of xylose isomerase in the actinobacterium Arthrobacter ureafaciens BIM B-6 has been studied. It was established that xylose and its structural analogue xylite induced the production of the enzyme by bacterial cells.
A. G. Lobanok +2 more
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