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Literature summary for 1.10.3.1 extracted from
- Polyphenol oxidase activity of oregano at different stages (2005), Food Chem., 91, 341-345.
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| additional information | - |
additional information | kinetics and activation energy, dependent on the locality of origin, the growth phase, and the tissue, overview | Origanum vulgare subsp. hirtum |
Localization
| Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|
| chloroplast | - |
Origanum vulgare subsp. hirtum | 9507 | - |
| additional information | the localisation of PPO in the plant cell depends on the species, age, and, in fruits or vegetables, on maturity, PPO activity increases in the transition from the vegetative stage to the generative stage | Origanum vulgare subsp. hirtum | - |
- |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| catechol + 1/2 O2 | Origanum vulgare subsp. hirtum | - |
1,2-benzoquinone + H2O | - |
? |  |
| additional information | Origanum vulgare subsp. hirtum | PPO activity increases in the transition from the vegetative stage to the generative stage | ? | - |
? | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Origanum vulgare subsp. hirtum | - |
from different places in Turkey | - |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
| native enzyme, partially from stem, root, and leaves, by (NH4)2SO4 precipitation and dialysis | Origanum vulgare subsp. hirtum |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| leaf | - |
Origanum vulgare subsp. hirtum | - |
| root | - |
Origanum vulgare subsp. hirtum | - |
| stem | - |
Origanum vulgare subsp. hirtum | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| catechol + 1/2 O2 | - |
Origanum vulgare subsp. hirtum | 1,2-benzoquinone + H2O | - |
? | |
| additional information | PPO activity increases in the transition from the vegetative stage to the generative stage | Origanum vulgare subsp. hirtum | ? | - |
? | |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| polyphenol oxidase | - |
Origanum vulgare subsp. hirtum |
| PPO | - |
Origanum vulgare subsp. hirtum |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 20 | 40 | dependent on the locality of origin, the growth phase, and the tissue, overview | Origanum vulgare subsp. hirtum |
Temperature Range [°C]
| Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 20 | 70 | - |
Origanum vulgare subsp. hirtum |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 7.2 | 8 | dependent on the locality of origin, the growth phase, and the tissue, overview | Origanum vulgare subsp. hirtum |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 4 | 9 | - |
Origanum vulgare subsp. hirtum |
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