Antifouling properties of plasticizers BPBG and DNOP against algal spore and mussel attachment

Antifouling activities of butylphthalyl butylglycolate (BPBG) and di-n-octylphthalate (DNOP) were assayed on the attachment of spores of the green alga Enteromorpha prolifera and by the foot repulsive reaction of the mussel Mytilus edulis. The concentration of BPBG required to inhibit 50% attachment of algal spores (ID50) was 0.28 mM. The concentration of BPBG required to cause foot repulsion in 50% of mussels (RD50) was 0.64 mM. Concentrations of DNOP required for ID 50 and RD50 were 0.09 mM and 0.08 mM, respectively. Therefore, both anthropogenic plasticizer compounds showed potent antifouling activities against algal spore and mussel attachment.