By making full use of our technologies having developed over many years for fermentation, extraction, purification and others, we have been manufacturing the enzyme products for clinical diagnostic and others as one of bioproducts materials. We are also promoting joint research with customers on enzyme modification (substrate specificity, etc.) and microbial fermentation.


Enzyme list *

Substrate Products EC Number Reaction
Saccharide Glucose dehydrogenase D-Glucose + acceptor -> D-Glucono-1,5-lactone + reduced acceptor
Pyranose oxidase D-Glucose + O2 -> 2-Dehydro-D-glucose + H2O2
Amino acid
D-Amino acid oxidase D-Amino acid + H2O + O2 -> 2-Oxo acid + NH3 + H2O2
L-Amino acid oxidase L-Amino acid + H2O + O2 -> 2-Oxo acid + NH3 + H2O2
(L-Phenylalanine + H2O + O2 -> Phenylpyruvic acid + NH3 + H2O2)
Glycine oxidase Glycine + H2O + O2 -> Glyoxylic acid + NH3 + H2O2
3-monooxygenase L-Kynurenine + NAD(P)H + H+ + O2
-> 3-Hydroxy-L-kynurenine + NAD(P)+ + H2O
L-Tryptophan oxidase - L-Tryptophan + H2O + O2 -> Indole-3-pyruvic acid + NH3 + H2O2
Amino acid
Alanine racemase L-Alanine <-> D-Alanine
beta-Cyanoalanine synthase O-Acetyl-L-serine + HCN -> beta-Cyano-L-alanine + CH3COOH
aminobutyric acid synthase O-Acetyl-L-homoserine + HCN
-> gamma-Cyano-alpha-aminobutyric acid + CH3COOH
Tryptophanase L-Tryptophan + H2O <-> Indole + Pyruvic acid + NH3
beta-Tyrosinase L-Tyrosine + H2O <-> Phenol + Pyruvic acid + NH3
6.1.1.- Amino acid+ATP -> Aminoacyl-AMP+Diphosphate
Aminoacyl-AMP + tRNA -> Aminoacyl-tRNA + AMP
Carboxylic acid Formate dehydrogenase Formate + NAD+ <-> CO2 + NADH

* Some of these products are under development.

Main products

Glucose dehydrogenase

Glucose dehydrogenase dependent on FAD (flavin adenine dinucleotide) can be used to determine blood glucose. A main feature of this product is that it is not influenced by the presence of maltose, galactose, or oxygen in the blood.
We also deal with enzymes that do not react with xylose.

Pyranose oxidase

Pyranose oxidase can be used to measure pyranose (glucose, 1,5-AG) levels in biological and food samples. A main feature of this product is that it is highly stable in the liquid state and is not inhibited by high salt concentrations.

Amino acid oxidase

We have been developing various amino acid oxidases or oxygenase with high substrate specificity (e.g. D-amino acid, L-Tryptophan, L-Phenylalanine, Glycine and L-Kynurenine) and thermostability. These enzymes can be used for measurement of the substrate levels in samples and for production of 2-oxo acid or hydroxy derivatives.

Manufacturing services and joint development

Manufacturing services

We offer contract manufacturing services regarding such fermentation, extraction and purification.
Click here for details of our bioproducts facilities.

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Joint development

We are also promoting joint research with customers on enzyme modification (substrate specificity, etc.) , enzyme manufacturing and microbial fermentation.