“…This property allows these strains to grow in the presence of or even produce otherwise toxic chemicals like aromatic phenols and styrenes (Wierckx et al, 2005 ; Verhoef et al, 2009 ; Volmer et al, 2014 ). Furthermore, biocatalysis in biphasic aqueous/organic systems allows direct product removal of hydrophobic biochemicals and could simplify biotechnological processes (Blank et al, 2008 ; Heerema et al, 2011 ; Ütkür et al, 2012 ; Volmer et al, 2014 ). On the other hand, during the recombinant production of, e.g., valuable biodetergents like rhamnolipids (Wittgens et al, 2011 ), the required aeration leads to strong reactor foaming, which is technically hard to handle with conventional antifoam technologies (Küpper et al, 2013 ).…”