Efficiency of the process of utilization of phthalate esters depending
on ester structure tends to fall with increase in number of carbon at
oms in side alkyl chain as correlated with reduction of phthalate este
r water solubility. Utilization of phthalate esters may include transf
ormation of these compounds by extracellular enzymes to form water-sol
uble intermediates of their solubilization by biosurfactants.