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Exocellular ?-mannanases from hemicellulolytic fungi
World Journal of Microbiology & Biotechnology, 1990Production of exocellular β-mannan- and xylan-degrading enzymes by eight wood rotting fungi was studied. Although all organisms excreted β-mannanase, endoxyfanase and acetylxylan esterase, production ofL-α-arabinosidase and 4-O-methylglucuronidase was variable. β-Mannanosidase was not detected in any culture filltrate.
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ß-Mannan and mannanase in poultry nutrition
World's Poultry Science Journal, 2015Dietary plant s-mannans are one of the major anti-nutritional components in monogastric nutrition. The presence of s-mannans in poultry diets has been associated with many negative features ranging from high intestinal viscosity and low nutrient digestibility to adverse effects on innate immune response and microbial proliferation in the gut.
Y. Shastak +4 more
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1988
Publisher Summary β-D-Mannanase enzymes are endohydrolases that cleave randomly within the 1,4-β-D-mannan main chain of galactomannan, glucomannan, galactoglucomannan, and mannan. The β-mannanases from a range of legume seeds, Bacillus subtilis and Irpex lacteus culture filtrates, and the gut solution of Helix pomatia have action patterns on ...
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Publisher Summary β-D-Mannanase enzymes are endohydrolases that cleave randomly within the 1,4-β-D-mannan main chain of galactomannan, glucomannan, galactoglucomannan, and mannan. The β-mannanases from a range of legume seeds, Bacillus subtilis and Irpex lacteus culture filtrates, and the gut solution of Helix pomatia have action patterns on ...
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The ?-mannanases elaborated by the phytopathogen Xanthomonas campestris
Archives of Microbiology, 1979The phytopathogen Xanthomonas campestris when grown on several polysaccharide substrates, including galactomannan, produced β-mannanases and carboxymethylcellulases which were present as cell wall-, or membrane-bound constituents, and also in the extracellular medium. The extracellular β-mannanases are constitutive enzymes.
Robert F. H. Dekker, Geoffrey P. Candy
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EXOGEN ENZYMES: MANNANASE, PECTINASE, AND GLYCOSIDASE
Poultry can efficiently convert plant-based feeds into valuable food products. However, there are still components of these feeds that remain undigested and excreted into the feces. These components are complex carbohydrates like cellulose, hemicellulose, and pectin called non-starch polysaccharides present in the plant cell wall that are indigestible ...Ahsan, Umair, Pekel, Ahmet Yavuz
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Purification and some properties of ?-mannanase fromPolyporus versicolor
World Journal of Microbiology & Biotechnology, 1990Multiple enzyme forms of β-mannanase activity fromPolyporus versicolor were puritied to molecular homogeneity by a sequence involving DEAE Bio-Gel A chromatography, gel filtration on Sephadex G-100 and high-performance liquid chromatography using anion exchange and hydrophobic Interaction media.
Johnson, K., Ross, Neil, Schneider, H.
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A simple assay procedure for β-d-mannanase
Carbohydrate Research, 1978A simple assay procedure for beta-D-mannanase enzyme has been developed which employs carob D-galacto-D-mannan dyed with Remazolbrilliant Blue. Additionally, the procedure is quantitative, relatively sensitive, and highly specific for beta-D-mannanase enzyme.
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Isolation of β-mannanase-producing microorganism
Journal of Fermentation and Bioengineering, 1994Abstract A bacterium which produced β-mannanase was isolated from soil using copra meal as a crude mannan preparation. The partially purified enzyme solubilized copra mannan and produced mannobiose, mannotriose, and mannotetraose as major products. The enzyme appeared to hydrolyze the unsubstituted β-mannan domain preferentially.
Jun-ichi Abe +2 more
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Mannanase Transfer into Hexane and Xylene by Liquid–Liquid Extraction
Applied Biochemistry and Biotechnology, 2009The formation of noncovalent complexes between glycosidase, endo-1,4-beta-D-mannanase, and ionic surfactant di(2-ethylhexyl) sodium sulfosuccinate (AOT) was shown to promote protein transfer into organic solvents such as xylene and hexane. It was found that mannanase can be solubilized in hexane and in xylene with concentration at least 2.5 and 2.0 mg ...
Shipovskov, Stepan +5 more
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α-Mannanase from Rhodococcus erythropolis
1988Publisher Summary This chapter describes the production, purification, and characteristics of Rhodococcus erythropolis possessing properties of α-mannanase. a-Mannanase is assayed by measuring the liberation of mannose from bakers' yeast mannan. The mannose released is determined by reducing sugar according to the method of Somogyi.
I.Ya. Zacharova, V.Y. Tamm, I.N. Pavlova
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