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.