Fig. 2From: Combinatorial metabolic engineering of Bacillus subtilis enables the efficient biosynthesis of isoquercitrin from quercetinHPLC and LC-MS analysis of metabolites produced by the host B. subtilis. (A) HPLC spectra of quercetin, isoquercitrin and their standards. (B) LC-MS analysis results of quercetin, isoquercitrin in negative ion modeBack to article page