(18d) Increased Production of Yersiniabactin (Ybt) and the Anthranilate Analog through Media Optimization and Ybt Metal Binding Characterization
The range of metals that Ybt forms a complex with were determined by using mass spectrometry. Using LC-MS the analysis of water samples exposed to aqueous and surface-localized Ybt, quantitative assessment of binding was completed with metals that included palladium, magnesium, and zinc. In total, Ybt showed affinity for 10 metals. Next, Ybt-modified XAD-16N resin (Ybt-XAD) was utilized to quantify the degree of metal binding and metal removal abilities, showing a rank order of Fe>Ga>Ni>Cu>CrâZn>Co>Pd>Mg>Al. Batch tests were conducted using Ybt-XAD for the treatment of wastewater from a local precious metal plating company, showing selective removal of nickel from the aqueous effluent.