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Inhibition of cyclodextrins on α-galactosidase
Food Chemistry, 2017This work successfully investigated the effects of different influential factors and hydrophobic cavities of cyclodextrins (CDs) on α-galactosidase (α-Gal) by detecting α-Gal activity. The highest inhibitory concentration of three kinds of CDs (α-, β-, and γ-CD) on α-Gal was 10mM.
Ding Wenping +15 more
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Dissociation of β-Galactosidase by Thiols
Nature, 1970IT is common practice to add mercaptoethanol to solutions of β-galactosidase during purification from Escherichia coli and to the stock solutions of the enzyme during storage. Although Craven et al.1 had reported that mercaptoethanol stabilizes the enzyme isolated from the K12 strain against thermal inactivation, Reithel and his coworkers2 observed ...
Barbara J. Grochowski +2 more
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2017
β-Galactosidase is one of the most important enzymes used in food processing and has nutritional, technological, and environmental applications. This chapter discusses the various microbial sources of this attention-grabbing enzyme. The characteristics of purified β-galactosidase in view of its applications in lactose hydrolysis and transglycosylation ...
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β-Galactosidase is one of the most important enzymes used in food processing and has nutritional, technological, and environmental applications. This chapter discusses the various microbial sources of this attention-grabbing enzyme. The characteristics of purified β-galactosidase in view of its applications in lactose hydrolysis and transglycosylation ...
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1974
Publisher Summary The enzyme β-galactosidase is one of several oligosaccharide-splitting enzymes that have been purified and subsequently characterized to varying degrees both physically and mechanistically. It is found in a wide range of biological sources in both the plant and animal kingdoms, although the principal source of study has been in the ...
Edward Steers, Pedro Cuatrecasas
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Publisher Summary The enzyme β-galactosidase is one of several oligosaccharide-splitting enzymes that have been purified and subsequently characterized to varying degrees both physically and mechanistically. It is found in a wide range of biological sources in both the plant and animal kingdoms, although the principal source of study has been in the ...
Edward Steers, Pedro Cuatrecasas
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2017
α-Galactosidase, or melibiase, is a highly versatile enzyme having diverse nutraceutical, pharmaceutical, and industrial applications. There are various galactosides that form substrates for this enzyme. This chapter lists the various microbial sources of α-galactosidase and the choice of fermentation technologies widely used for its production.
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α-Galactosidase, or melibiase, is a highly versatile enzyme having diverse nutraceutical, pharmaceutical, and industrial applications. There are various galactosides that form substrates for this enzyme. This chapter lists the various microbial sources of α-galactosidase and the choice of fermentation technologies widely used for its production.
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Glucosidases and galactosidases in soils
Soil Biology and Biochemistry, 1988Abstract An improved method to assay activities of α- and β-glucosidases and α- and β-galactosidases in soils is described. It involves extraction and colorimetric determination of the p-nitrophenol released when 1 g of soil is incubated with 5 ml of buffered p-nitrophenyl glycoside solution at 37°C for 1 h.
F. Eivazi, M. A. Tabatabai
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Pseudodeficiency of α‐galactosidase A
Clinical Genetics, 1982Apparent deficiency of α‐galactosidase A was observed in a 51‐year‐old, clinically healthy male, with no clinical symptoms of Fabry disease, and without excess urinary excretion of ceramide trihexoside. The deficiency, which was similar to that found in Fabry disease patients, could be demonstrated using both synthetic and natural substrates.
Eliezer Rosenmann +3 more
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1972
Publisher Summary This chapter presents information on the chemistry and enzymology of β-galactosidases. β-Galactosidases have been found in numerous microorganisms, animals, and plants. Tests for fermentation of lactose play an important role in diagnostic bacteriology of Enterobacteriaceae, so the occurrence of β-galactosidase in gram-negative rods
Kurt Wallenfels, Rudolf Weil
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Publisher Summary This chapter presents information on the chemistry and enzymology of β-galactosidases. β-Galactosidases have been found in numerous microorganisms, animals, and plants. Tests for fermentation of lactose play an important role in diagnostic bacteriology of Enterobacteriaceae, so the occurrence of β-galactosidase in gram-negative rods
Kurt Wallenfels, Rudolf Weil
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Beta-Galactosidase of Helix pomatia
Nature, 1964THE digestive juice of Helix pomatia contains a remarkable number of enzymes; many of them are carbohydrases, and they include an enzyme that hydrolyses lactose or β-methyl-galactoside1,2. This communication describes the properties and activities of the enzyme that hydrolyses o-nitrophenyl-β-D-galactopyranoside (ONPG).
Got R, A Marnay, P Jarrige, J Font
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1974
Publisher Summary The α-galactosidase from the coffee bean is one of the few capable of hydrolyzing the nonreducing terminal α-D-galactopyranosyl residue of blood group B antigens. As part of the studies on the structure of these antigens in human erythrocytes, a method has been developed for the rapid and complete purification of the enzyme in high ...
H. M. Flowers, Noam Harpaz
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Publisher Summary The α-galactosidase from the coffee bean is one of the few capable of hydrolyzing the nonreducing terminal α-D-galactopyranosyl residue of blood group B antigens. As part of the studies on the structure of these antigens in human erythrocytes, a method has been developed for the rapid and complete purification of the enzyme in high ...
H. M. Flowers, Noam Harpaz
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