3.4. Inspection of biochemical results based on PCA
results
In this part, the biochemical test results of some of the CFECs that
were separated from the large cluster according to the cluster
commonality, scattering profile, and variance values according to the
MALDI-TOF MS-based PCA results were examined and it was seen that there
were data compatible with the PCA analysis results. In this respect, for
example, the indole test of two E.coli (CFEC-38, CFEC-90 far
right) separated by 31% variance and CFEC-108 (PC2; 14% variance) were
negative, and the remaining 119 E. coli were positive. On the
other hand, one of the isolates separated from the large cluster with
14% variance (PC2) CFEC-108 was alpha hemolytic although there was no
hemolysis in remaining strains CFEC-71, CFEC-69, and CFEC-35.