Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 1.10.3.1 extracted from

  • Yang, C.P.; Fujita, S.; Kohno, K.; Kusubayashi, A.; Ashrafuzzaman, M.; Hayashi, N.
    Partial purification and characterization of polyphenol oxidase from banana (Musa sapientum L.) peel (2001), J. Agric. Food Chem., 49, 1446-1449.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
ascorbic acid peel enzyme, 1 mM, complete inhibition Musa x paradisiaca
CN- peel enzyme, 1 mM, 89% inhibition Musa x paradisiaca
cysteine peel enzyme, 1 mM, complete inhibition Musa x paradisiaca
diethyldithiocarbamate peel enzyme, 1 mM, complete inhibition Musa x paradisiaca

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
41000
-
peel enzyme, gel filtration Musa x paradisiaca

Organism

Organism UniProt Comment Textmining
Musa x paradisiaca
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Musa x paradisiaca

Source Tissue

Source Tissue Comment Organism Textmining
peel
-
Musa x paradisiaca
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
10512.0 units/mg, 1 unit is defined as absorbance change at 420 nm of 0.1 per min and per ml enzyme solution Musa x paradisiaca

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
catechol + 1/2 O2 peel enzyme, 34% of activity with dopamine Musa x paradisiaca 1,2-benzoquinone + H2O
-
?
chlorogenic acid + O2 peel enzyme, 5.3% of activity with dopamine Musa x paradisiaca ?
-
?
D-catechin + O2 peel enzyme, 11.5% of activity with dopamine Musa x paradisiaca ?
-
?
dopamine + O2
-
Musa x paradisiaca 4-(2-aminoethyl)-1,2-benzoquinone + 2 H2O
-
?
epicatechin + O2 peel enzyme, 9.3% of activity with dopamine Musa x paradisiaca ?
-
?
L-dopa + 1/2 O2 peel enzyme, 8.0% of activity with dopamine Musa x paradisiaca L-dopaquinone + H2O
-
?
pyrogallol + O2 peel enzyme, 1.4% of activity with dopamine Musa x paradisiaca ?
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
-
Musa x paradisiaca

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
60
-
peel enzyme, loss of 10% activity after 30 min Musa x paradisiaca

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5
-
-
Musa x paradisiaca

pH Stability

pH Stability pH Stability Maximum Comment Organism
5 11 peel enzyme Musa x paradisiaca