TABLE 2.

Overview of DI-FT-ICR MS results and the impact of Salmonella infection on the biochemical composition of liver and feces

SectionNo. of masses detectedMasses changed
With negative ionizationWith positive ionizationOverlapaTotalUninfected > infectedbInfected > uninfectedcTotal no. changed% total
Feces8838091171,57539852692458.7
Liver565666821,14939534173664.1
  • a Masses were considered to overlap when they differed by 0.001 Da or less.

  • b Number of metabolites showing higher levels in uninfected samples.

  • c Number of metabolites showing higher levels in infected samples.