Fig. 2
From: Biosynthesis of fraxetin from three different substrates using engineered Escherichia coli
HPLC analysis of the reaction in E. coli harboring AtS8H. E. coli harboring AtS8H was administered scopoletin (a), isoscopoletin (b), and esculetin (c); the reaction product was analyzed. d–f denote standard scopoletin, isoscopoletin, and esculetin, respectively. P1, reaction product from scopoletin; P2, reaction product from isoscopoletin; S1, scopletin; S2, isoscopoletin; S3, esculetin