Results 161 to 170 of about 3,093 (199)
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The beta-xylosidase of Thermomonospora.
Biotechnology and bioengineering, 2012This study is concerned with characterizing cell-bound inducible beta-xylosidase produced by a strain of the thermophilic bacterial genus Thermomonospora. A crude preparation of this enzyme recovered from sonicated cells of this organism displayed high activity against paranitrophenyl-beta-xylopyranoside over a pH range of 5.5-7.7.
D L, Ristroph, A E, Humphrey
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Research progress of β-xylosidase in green synthesis
International Journal of Biological Macromoleculesβ-Xylosidase, an important hydrolase, catalyzes the degradation of xylan and xylosides, demonstrating significant potential for applications in biomass conversion and green synthesis. In recent years, with the rise of green chemistry, research on β-xylosidase in sustainable chemical synthesis has garnered increasing attention.
Yue, Zhao +5 more
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Journal of Agricultural and Food Chemistry, 2019
β-1,2-Xylosidase activity has not been recorded as an EC subsubclass. In this study, phylogenetic analysis and multiple sequence alignments revealed that characterized β-xylosidases of glycoside hydrolase family (GH) 39 were classified into the same subgroup with conserved amino acid residue positions participating in substrate recognition.
Shujing Xu, Xin Wei, Xianghua Tang
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β-1,2-Xylosidase activity has not been recorded as an EC subsubclass. In this study, phylogenetic analysis and multiple sequence alignments revealed that characterized β-xylosidases of glycoside hydrolase family (GH) 39 were classified into the same subgroup with conserved amino acid residue positions participating in substrate recognition.
Shujing Xu, Xin Wei, Xianghua Tang
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Thermoinactivation of β-xylosidase immobilized on nylon
1998Abstract β-xylosidase was isolated and partially purified from Trichoderma reesei QM 9414 grown on wheat straw as the sole carbon source. The enzyme was attached covalently to nylon powder and thermoinactivation was carried out at temperatures between 55 and 75° C.
M.J. Dueñas, P. Estrada
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Biochemical properties of a beta-xylosidase from Clostridium cellulolyticum
Applied and Environmental Microbiology, 1995A 43-kDa beta-xylosidase from Clostridium cellulolyticum was purified to homogeneity. The enzyme releases xylose from p-nitrophenylxylose and xylodextrins with a degree of polymerization ranging between 2 and 5. The N-terminal amino acid sequence of the enzyme showed homologies with three other bacterial beta-xylosidases.
S, Saxena +4 more
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Preparation and application of a fluorogenic substrate for endo-β-xylosidase
Journal of Biochemical and Biophysical Methods, 1989The present paper describes a fluorometric assay for galactosaminoglycan-degrading endo-beta-xylosidase, utilizing glycosaminoglycan chains bearing a 4-methylumbelliferyl group at the reducing terminus as a substrate. This fluorogenic substrate is synthesized by human skin fibroblasts cultured in the presence of a fluorogenic xyloside, 4 ...
K, Takagaki +4 more
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Xylanases and β-xylosidase of Trichoderma liǵnorum
1988Publisher Summary Trichoderma lignorum is a rich source of various extracellular polyand oligosaccharide-degrading enzymes—for example, xylanases, cellulase, amyloglucosidase, β-xylosidasey α-arabinosidase, and β-glucosidase. This chapter describes a simple procedure for the purification of two different xylanases, 1,4-β-D-xylan xylanohydrolase and a
Michael John, Jürgen Schmidt
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Engineering lower inhibitor affinities in β-d-xylosidase
Applied Microbiology and Biotechnology, 2009Beta-D-Xylosidase catalyzes hydrolysis of xylooligosaccharides to D-xylose residues. The enzyme, SXA from Selenomonas ruminantium, is the most active catalyst known for the reaction; however, its activity is inhibited by D-xylose and D-glucose (K (i) values of approximately 10(-2) M).
Zhanmin, Fan +5 more
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Biotechnology and Bioengineering, 2017
AbstractThermochemical pretreatment and enzymatic hydrolysis are the areas contributing most to the operational costs of second generation ethanol in lignocellulosic biorefineries. The improvement of lignocellulosic enzyme cocktails has been significant in the recent years.
Lucía Martín Pérez +8 more
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AbstractThermochemical pretreatment and enzymatic hydrolysis are the areas contributing most to the operational costs of second generation ethanol in lignocellulosic biorefineries. The improvement of lignocellulosic enzyme cocktails has been significant in the recent years.
Lucía Martín Pérez +8 more
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Formation of esterase, xylanase and xylosidase by cellulolytic anaerobes
Biomass, 1987Abstract Three mesophilic anaerobes, namely Acetivibrio cellulolyticus, Acetivibrio cellulosolvens and Bacteroides cellulosolvens and a thermophilic anaerobe, namely Clostridium thermocellum, produced xylanase, xylosidase and esterase activities when grown on medium containing cellulose.
A.W. Khan, K.A. Lamb, M.A. Forgie
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