Figure 5From: A process optimization for bio-catalytic production of substituted catechols (3-nitrocatechol and 3-methylcatechol3-substituted catechols at pilot scale. (a) 3-nitrocatechol production (â—†) with concomitant depletion of 3-nitrophenol (â–¡) by strain P. putida F1. (b) 3-methylcatechol production (â– ) from toluene by E. coli expression clone (pDTG602).Back to article page