Results 41 to 50 of about 5,877,636 (396)

Activity of glucose oxidase functionalized onto magnetic nanoparticles [PDF]

open access: yes, 2005
BACKGROUND: Magnetic nanoparticles have been significantly used for coupling with biomolecules, due to their unique properties. METHODS: Magnetic nanoparticles were synthesized by thermal co-precipitation of ferric and ferrous chloride using two ...
Irudayaraj, Joseph   +2 more
core   +2 more sources

Production of extracellular protease by a Brazilian strain of Beauveria bassiana reactivated on coffee berry borer, Hypothenemus hampei

open access: yesBrazilian Archives of Biology and Technology, 2007
Studies were carried out on extracellular protease production by Beauveria bassiana CG432 in liquid medium containing glucose and yeast extract. B. Bassiana presented active growth after lag period of 24 h., produced 80% of the total of the extracellular
Eliana Tiemi Ito   +4 more
doaj   +1 more source

Investigating on the Stability of Peroxidase Extracted from Soybean (Glycine max var. Williams) and Effects of Na+ and K+ Ions on its Activity [PDF]

open access: yesJournal of Cell and Molecular Research, 2015
In the present study, some techniques were used for Soybean peroxidase (SBP) purification including: ammonium sulfate fractionation, DEAE Sephadex anion exchange chromatography and Concanavalin A Sepharose 4B affinity chromatography.
Leila Parsiavash   +2 more
doaj   +1 more source

Astroenzymology – the environmental limits of enzyme activity [PDF]

open access: yes, 2003
Using organisms from extreme terrestrial environments as models for extraterrestrial life may lead us to underestimate the range of environments that life may inhabit.
Daniel, Roy M.
core   +2 more sources

Escherichia coli Fails to Efficiently Maintain the Activity of an Important Flavin Monooxygenase in Recombinant Overexpression

open access: yesFrontiers in Microbiology, 2017
This paper describes the measurement and analysis of in vivo activity and stability of cyclohexanone monooxygenase from Acinetobacter sp. NCIMB 9871 (CHMO), a model Baeyer–Villiger monooxygenase, in the recombinant host Escherichia coli.
Sofia Milker   +4 more
doaj   +1 more source

Optimization of extraction of novel pectinase enzyme discovered in red pitaya (Hylocereus polyrhizus) peel [PDF]

open access: yes, 2013
Plant peels could be a potential source of novel pectinases for use in various industrial applications due to their broad substrate specificity with high stability under extreme conditions. Therefore, the extraction conditions of a novel pectinase enzyme
Ahmad Zohdi, Nor Khanani   +1 more
core   +2 more sources

Effect of Concentrated Salts Solutions on the Stability of Immobilized Enzymes: Influence of Inactivation Conditions and Immobilization Protocol

open access: yesMolecules, 2021
This paper aims to investigate the effects of some salts (NaCl, (NH4)2SO4 and Na2SO4) at pH 5.0, 7.0 and 9.0 on the stability of 13 different immobilized enzymes: five lipases, three proteases, two glycosidases, and one laccase, penicillin G acylase and ...
Sabrina Ait Braham   +8 more
doaj   +1 more source

Aryl Phosphoramidates of 5-Phospho Erythronohydroxamic Acid, A New Class of Potent Trypanocidal Compounds [PDF]

open access: yes, 2010
RNAi and enzymatic studies have shown the importance of 6-phosphogluconate dehydrogenase (6-PGDH) in Trypanosoma brucei for the parasite survival and make it an attractive drug target for the development of new treatments against human African ...
Alibu, Vincent P.   +6 more
core   +4 more sources

Engineering Enhanced Antimicrobial Properties in α-Conotoxin RgIA through D-Type Amino Acid Substitution and Incorporation of Lysine and Leucine Residues

open access: yesMolecules
Antimicrobial peptides (AMPs), acknowledged as host defense peptides, constitute a category of predominant cationic peptides prevalent in diverse life forms. This study explored the antibacterial activity of α-conotoxin RgIA, and to enhance its stability
Minghe Wang   +4 more
doaj   +1 more source

Tablet-Based Sensor: A Stable and User-Friendly Tool for Point-of-Care Detection of Glucose in Urine

open access: yesBiosensors, 2023
The colorimetric detection of glucose in urine through enzymatic reactions offers a low-cost and non-invasive method to aid in diabetes management. Nonetheless, the vulnerability of enzymes to environmental conditions, particularly elevated temperatures,
Hasti Hajimiri   +4 more
doaj   +1 more source

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