Table 4.
Identification of lactobacilli isolates with MALDI-TOF MS and 16S rDNA-analysis: Oral isolates
| Species | 16S rDNA-analysis | MALDI-TOF-MS | Concordance [%]* |
|---|---|---|---|
| L. salivarius | 3 | 4 | 75 |
| L. gasseri | 3 | 3 | 100 |
| L. rhamnosus | 3 | 3 | 100 |
| L. paracasei** | 3 | 3 | 100 |
| L. fermentum | 2 | 1 | 50 |
| L. oris | 2 | 2 | 100 |
| L. crispatus | 2 | 2 | 100 |
| L. kalixensis | 1 | 1 | 100 |
| L. reuteri | 1 | 1 | 100 |
| L. helveticus | 1 | 0 | - |
| L. ultunensis*** | 0 | 1 | - |
* Isolates identified as same species by both methods in relation to the total number of isolates of this species identified by 16S rDNA sequencing.
**The 16S rDNA-analysis result was L. paracasei/L. casei, both species were not distinguishable from each other.
***The BioTyper log score was 1.71, reliable identification on genus level, but not on species level, repetition of the samples resulted in L. acidophilus with a log score of 1.87.