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Literature summary for 1.1.3.15 extracted from

  • Lowinsohn, D.; Bertotti, M.
    A biosensor based on immobilization of lactate oxidase in a PB-CTAB film for FIA determination of lactate in beer samples (2008), J. Braz. Chem. Soc., 19, 637-642.
No PubMed abstract available

Application

Application Comment Organism
diagnostics lactate biosensor (FIA amperometric detection), tested with beer samples, detection limit: 0.84 micromol/l, three-electrode cell with AG/AGCl, NaCl reference electrode, platinum wire, glassy carbon electrode, the latter layered with Prussian Blue film of K3Fe(CN)6, Fe(III), KCl, cetyltrimethylammonium bromide, pH 1.7 maintained with HCl, lactate oxidase immobilized onto the Prussian Blue-modified glassy carbon electrode, enzyme layer covered by a Nafion-ethanol solution, storage in phosphate buffer, pH 6.9 Pediococcus sp.

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
lactate + O2 Pediococcus sp. lactate detection in beer samples pyruvate + H2O2 H2O2 oxidizes Prussian Blue on an electrode, the concomitant electron flow is measured ?

Organism

Organism UniProt Comment Textmining
Pediococcus sp.
-
-
-

Storage Stability

Storage Stability Organism
below 0°C, 0.1 mol/l phosphate buffer, pH 7.2 (potassium and sodium salts), 2.2 mg lactate oxidase in 0.5 ml buffer, enzymatic activity stable for several weeks Pediococcus sp.

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
lactate + O2 lactate detection in beer samples Pediococcus sp. pyruvate + H2O2 H2O2 oxidizes Prussian Blue on an electrode, the concomitant electron flow is measured ?

Synonyms

Synonyms Comment Organism
lactate oxidase
-
Pediococcus sp.
LctO
-
Pediococcus sp.

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.9
-
phosphate buffer, optimal operating conditions Pediococcus sp.