9-Oxo-neoprocurcumenol from Curcuma aromatica (Zingiberaccae) as an attachment inhibitor against the Blue Mussel, Mytilus edulis galloprovincialis

Neocurdione, isoprocurcumenol, and a new sesquiterpene, 9-oxo-neoprocurcumenol, were isolated from fresh rhizomes of Curcuma aromatica and Curcuma zedoaria (Zingiberaceae) as attachment inhibitors against the blue mussel, Mytilus edulis galloprovincialis. The structures of these compounds were elucidated on the basis of spectroscopic evidence.