Fig. 3From: Metabolic engineering of Escherichia coli to high efficient synthesis phenylacetic acid from phenylalanineThe GC/MS result of PAA from the extract of the recombinant strain RARE/pDG9 in shake flasks for 28 h. Identified substances: 1 benzoic acid (used as internal standard, 100 mg/L); 2 phenylacetic acid (PAA)Back to article page