Biodegradation of Benzoate and Salicylate by Acinetobacter sp.JW
Benzoic acid and salicylic acid are common organic pollutants in the environment and intermediate metabolites in the degradation of various aromatic hydrocarbon pollutants.This article examined the degradation characteristics of JW,a typical type of Acinetobacter sp.,on benzoic acid and salicylic acid.The results show that JW can grow using benzoic acid and salicylic acid as the sole carbon source,with a strong degradation capacity for concentrations ranging from 50 to 500 mg/L.A reaction system pH of 7.0 is more suitable for JW growth and the degradation of benzoic acid and salicylic acid.Most metal ions have a significant inhibitory effect on the growth of JW and the degradation of pollutants.Based on liquid chromatography-mass spectrometry(LC-MS)analysis and genome annotation,it is hypothesized that JW degrades benzoic acid via the catechol and protocatechuic acid pathways and degrades salicylic acid via the catechol pathway.