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Enzyme Immobilization on Maghemite Nanoparticles with Improved Catalytic Activity: An Electrochemical Study for Xanthine
(Mdpi, 2020-04-01)
Generally, enzyme immobilization on nanoparticles leads to nano-conjugates presenting partially preserved, or even absent, biological properties. Notwithstanding, recent research demonstrated that the coupling to nanomaterials ...
Xylanase and β-Xylosidase from Penicillium janczewskii: Production, Physico-Chemical properties, and application of the crude extract to pulp biobleaching
(2013-02-01)
Extracellular xylanase and β-xylosidase production by a Penicillium janczewskii strain were investigated in liquid cultures with xylan from oat spelts under different physical and chemical conditions. The selected conditions ...
Characterization of a glucose- and solvent-tolerant extracellular tannase from Aspergillus phoenicis
(2013-01-01)
Tannases have attracted wider attention because of their biotechnological potential, especially enzymes from filamentous fungi and other microorganisms. However, the biodiversity of these microorganisms has been poorly ...
Expanding the knowledge on lignocellulolytic and redox enzymes of worker and soldier castes from the lower termite Coptotermes gestroi
(2016-10-13)
Termites are considered one of the most efficient decomposers of lignocelluloses on Earth due to their ability to produce, along with its microbial symbionts, a repertoire of carbohydrate-active enzymes (CAZymes). Recently, ...
Stabilization of an amylase from Neurospora crassa by Immobilization on Highly Activated Supports
(2008-01-01)
The amylase from Neurospora crassa is an interesting enzyme, having higher stability than amylase from Aspergillus oryzea under a broad range of pH values. Moreover, the N. crassa enzyme may be immobilized on different ...
Stabilization of an amylase from Neurospora crassa by immobilization on highly activated supports
(TAYLOR & FRANCIS INC, 2008)
The amylase from Neurospora crassa is an interesting enzyme, having higher stability than amylase from Aspergillus oryzea under a broad range of pH values. Moreover, the N. crassa enzyme may be immobilized on different ...
Xylanase and β-xylosidase from Penicillium janczewskii: Purification, characterization and hydrolysis of substrates
(2016-09-01)
Background: Xylanases and β-D-xylosidases are the most important enzymes responsible for the degradation of xylan, the second main constituent of plant cell walls. Results: In this study, the main extracellular xylanase ...
Intestinal and pancreas enzyme activity of broilers exposed to thermal stress
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2003-04-01)
Thirty-two Hubbard broilers were raised under commercial husbandry to evaluate the effect of temperature exposure (26 and 35ºC) on the activity of digestive enzymes at different ages (23 and 46 days) and different ...
Studies on the activation of the pre-kininogenin-kininogenin (pre-kallikrein-kallikrein) system by sulfated polysaccharides and kaolin
(1979-12-01)
The activation of pre-kininogenin to kininogenin (pre-kallikrein to kallikrein) is one of the steps in the series of reactions of a complex system, linked also to fibrinolysis and coagulation, that leads to kinin release ...
Purification and characterisation of a fructosyltransferase from Rhodotorula sp.
(SpringerNew YorkEUA, 2008)