In. Kostova et al., ANTIMICROBIAL PROPERTIES OF SOME HYDROXYCOUMARINS AND FRAXINUS-ORNUS BARK EXTRACTS, Journal of ethnopharmacology, 39(3), 1993, pp. 205-208
The antimicrobial effects of the hydroxycoumarins esculin, esculetin,
fraxin and fraxetin have been examined and compared with some Fraxinus
ornus bark extracts.