(+) -Columbianetin

(+) -Columbianetin ((S) -Columbianetin) is a new phytoalexin associated with celery (Apium graveolens) resistance to pathogens during storage, it also has antifungal activity. (+) -Columbianetin has anti-inflammatory effects, it promotes histamine release, and inhibits the histamine release by substance P, suggests that it may be helpful in regulating mast cell-mediated allergic inflammatory responses. (+) -Columbianetin can be effectively used to protect keratinocytes from UVB induced damage.