Isopimpinellin (1), a kind of furanocoumarin, is found in
Apiaceae (
Umbelliferae) such as celery and parsley, and
Citrus such as lime and grapefruit.
1) It has been known that furanocoumarins as typified by bergamottin induce photodermatosis, which is produced in plants as a defense against herbivorous animals.
2) However
1 does not have phototoxicity,
3) but has an antifungal effect, an insecticidal effect and an antifeeding effect.
4) In addition, Cnidii Monnieri Fructus, dried fruits of
Cnidium monnieri CUSSON (
Apiaceae), contains
1, and is used as a crude drug in traditional Chinese medicine. The evidence of an antipruritic effect has been revealed.
5) It has been also reported that
1 regulates cytochromes P450 (hepatic detoxicating enzymes) and inhibits tumorigenesis induced by the metabolites of polycyclic aromatic hydrocarbons (PAHs).
6)