| OMTs | O-methyltransferases |
| COMT | caffeic acid O-methyltransferase |
| BMT | Bergaptol O-methyltransferase |
| HPLC | High Performance Liquid Chromatography |
| SD | Standard Deviation |
| PDB | Protein Data Bank |
| SAM | S-adenosyl-l-methionine |
| ESC | esculetin |
| SAH | S-adenosyl-l-homocysteine |
| NCBI | National Center for Biotechnology Information |