Methods are provided for the production and recovery of multifunctional
aromatic compounds from a fermentation medium. Preferred multifunctional
aromatic compounds include para-hydroxycinnamic acid (pHCA), cinnamic
acid (CA), and para-hydroxystyrene (pHS). The multifunctional aromatic
compounds may be produced in a biphasic growth medium comprising a
fermentation medium having a specified volume of an extractant. The
multifunctional aromatic compounds are extracted into the extractant and
recovered by standard means.