2009_Book_FoodChemistry

100 2 Enzymes
Table 2.4. Systematic classification of some enzymes of importance to food chemistry
Class/subclass Enzyme EC- In text
Number found under
1. Oxidoreductases
1.1 CH−OH as donor
1.1.1 With NAD ⊕ or NADP ⊕ Alcohol dehydrogenase 1.1.1.1 2.6.1
as acceptor Butanediol dehydrogenase 1.1.1.4 2.7.2.1.5
L-Iditol 2-dehydrogenase 1.1.1.14 2.6.1
L-Lactate dehydrogenase 1.1.1.27 2.6.1
3-Hydroxyacyl-CoA 1.1.1.35 12.10.1.2
dehydrogenase
Malate dehydrogenase 1.1.1.37 2.6.1
Galactose 1-dehydrogenase 1.1.1.48 2.6.1
Glucose-6-phosphate 1.1.1.49 2.6.1
1-dehydrogenase
1.1.3 With oxygen as acceptor Glucose oxidase 1.1.3.4 2.6.1 and
2.7.2.1.1
Xanthine oxidase 1.1.3.22 2.3.3.2
1.2 Aldehyde group as donor
1.2.1 With NAD ⊕ or NADP ⊕ Aldehyde dehydrogenase 1.2.1.3 2.7.2.1.4
as acceptor
1.8 S-Compound as donor
1.8.5 With quinone or related Glutathione dehydrogenase 1.8.5.1 15.2.2.7
compound as acceptor
(ascorbate)
1.10 Diphenol or endiol as donor
1.10.3 With oxygen as acceptor Ascorbate oxidase 1.10.3.3 2.2.6
1.11 Hydroperoxide as acceptor Catalase 1.11.1.6 2.7.2.1.2
Peroxidase 1.11.1.7 2.3.2.2 and
2.5.4.4
1.13 Acting on single donors
1.13.11 Incorporation of molecular Lipoxygenase 1.13.11.12 2.5.4.4 and
oxygen 3.7.2.2
1.14 Acting on paired donors
1.14.18 Incorporation of one Monophenol monooxy 1.14.18.1 2.3.3.2
oxygen atom
genase (Polyphenol oxidase)
2. Transferases
2.3 Transfer of acyl groups
2.3.2 Aminoacyl transferases Transglutaminase 2.3.2.13 2.7.2.4
2.7 Transfer of phosphate
2.7.1 HO-group as acceptor Hexokinase 2.7.1.1 2.6.1
Glycerol kinase 2.7.1.30 2.6.1
Pyruvate kinase 2.7.1.40 2.6.1
2.7.3 N-group as acceptor Creatine kinase 2.7.3.2 2.6.1
3. Hydrolases
3.1 Cleavage of ester bonds
3.1.1 Carboxylester hydrolases Carboxylesterase 3.1.1.1 3.7.1.1
Triacylglycerol lipase 3.1.1.3 2.5.4.4 and
3.7.1.1
Phospholipase A 2 3.1.1.4 3.7.1.2
Acetylcholinesterase 3.1.1.7 2.4.2.5
Pectinesterase 3.1.1.11 4.4.5.2
Phospholipase A 1 3.1.1.32 3.7.1.2
3.1.3 Phosphoric monoester Alkaline phosphatase 3.1.3.1 2.5.4.4
hydrolases