Glucose oxidase and catalase co-immobilization on biosynthesized nanoporous SiO2 for removal of dissolved oxygen in water: Corrosion controlling of boilers

Co‐immobilization of cellulase and glucose oxidase on graphene oxide by covalent bonds: a biocatalytic system for one‐pot conversion of gluconic acid from carboxymethyl cellulose

“…A common strategy for multi‐enzyme co‐immobilization is based on a single enzyme immobilization technique in which multiple enzymes are immobilized on one single functional group of the carrier, and the specific enzymatic activity of multi‐enzyme systems is usually regulated via adjusting the mass ratio of each enzyme . Zhao et al .…”

“…13 A common strategy for multi-enzyme co-immobilization is based on a single enzyme immobilization technique in which multiple enzymes are immobilized on one single functional group of the carrier, and the specific enzymatic activity of multi-enzyme systems is usually regulated via adjusting the mass ratio of each enzyme. 10,14,15 Zhao et al 16 immobilized -amylase and GOD together on chemically reduced graphene oxide (CRGO) by non-covalent bonds. In starch-gluconic acid reaction, by controlling the mass ratio of -amylase and GOD immobilized on CRGO to 1:1.3, the yield of gluconic acid increased up to 82% in 2 h. Talekar et al 14 prepared aggregates of -amylase, GOD and pullulanase with glutaraldehyde (GA) as crosslinker, and controlled the specific activity of each enzyme of the polymerase by adjusting the amount of enzyme added.…”

Coupling and Regulation of Porous Carriers Using Plasma and Amination to Improve the Catalytic Performance of Glucose Oxidase and Catalase

“…Assay of immobilized enzyme activity (Mahdizadeh and Eskandarian, 2014): Briefly, 0.25 g of the carrier was mixed with 5 mL of the standard glucose solution (pH 7). The reaction was allowed to run at 35 • C for 10 min and then the residual reducing glucose concentration was measured using the SBA biosensor analyzer after diluting appropriately.…”

Glucose Oxidase Applications and Comparison of the Activity Assays

“…Produced H2O2 is used in peroxidase activity after by GOD activity, so, the color of oxidized chromogenic compound increases during reaction time. Atia and Batal, 2005;Godjevargova et al 2004;Gouda et al, 2003;Ferreira et al, 2005;Godjevargova et al, 2005;Aken et al, 2000;Ying et al, 2002;Arıca and Bayramoğlu, 2004;Kang and Bae, 2003;Elçin et al, 1993;Godjevargova et al, 2000;Bulmuş et al, 1997;Yavuz et al, 2002;Chen et al, 2002;Frederick et al 1990;Sukhacheva et al, 20044-Aminoantipyrine Miron et al, 2004Brahim et al, 2002, Suye et al, 1998Appleton et al, 1997;Mugo et al 2019, Zhao et al 2018 2,2'-azino-bis(3-ethylbenzathiazoline-6-sulfonic acid) (ABTS) Mugo et al 2019;Betancor et al, 2005;Portaccio et al, 2002;Betancor et al, 2004;Ukeda et al, 1998;Witt et al, 2000;Szweda et al 2013, Mahdizadeh et al 2014 Dimethylaminobenzoic acid Brahim et al, 2002 Comparison of GOD activity methods GOD as green catalyst is widely used for various reasons such as removing glucose or molecular oxygen or production of hydrogen peroxide and gluconic acid salts. Therefore, the activity of the GOD enzyme, accuracy and sensitivity of the determined activity value are of great importance.…”