Gardenin B
Gardenin b, also known as demethyltangeretin or 5-hydroxy-4',6,7,8-tetramethoxyflavone, is a member of the class of compounds known as 8-o-methylated flavonoids. 8-o-methylated flavonoids are flavonoids with methoxy groups attached to the C8 atom of the flavonoid backbone. Thus, gardenin b is considered to be a flavonoid lipid molecule. Gardenin b is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Gardenin b can be found in mandarin orange (clementine, tangerine), peppermint, sweet basil, and winter savory, which makes gardenin b a potential biomarker for the consumption of these food products.
| ID | EC Number | Name |
|---|---|---|
| Rhea:RHEA:73444 | gardenin B + 2-oxoglutarate + O2 => nevadensin + formaldehyde + succinate + CO2 + H+ | |
| Rhea:RHEA:73445 | nevadensin + formaldehyde + succinate + CO2 + H+ => gardenin B + 2-oxoglutarate + O2 | |
| Rhea:RHEA:73446 | gardenin B + 2-oxoglutarate + O2 <=> nevadensin + formaldehyde + succinate + CO2 + H+ | |
| BioCyc:RXN-14639 | 2.1.1.- | S-ADENOSYLMETHIONINE + CPD-15476 --> PROTON + ADENOSYL-HOMO-CYS + CPD-15474 |
| BioCyc:RXN-14655 | 1.14.11.- | CPD-15474 + 2-KETOGLUTARATE + OXYGEN-MOLECULE --> CPD-15468 + FORMALDEHYDE + SUC + CARBON-DIOXIDE |
| Rhea:RHEA:73443 | [73443] gardenin B + 2-oxoglutarate + O2 = nevadensin + formaldehyde + succinate + CO2 + H(+) |