Table-1.
Results of Gram staining and biochemical tests of Lactobacillus species.
| Tests | Bacterial strain | |||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | |
| Gram staining | + | + | + | + | + | + |
| Ribose | + | + | + | + | + | + |
| Sorbitol | + | + | + | − | + | + |
| Raffinose | + | − | + | − | − | + |
| Lactose | + | + | + | − | + | + |
| Galactose | + | + | + | + | − | + |
| Maltose | + | + | + | + | + | + |
| Melibiose | + | − | − | + | − | + |
| Rhamnose | − | − | − | + | − | − |
| Xylose | − | − | + | − | − | − |
| Manose | + | + | + | + | + | + |
| Salicine | + | + | + | − | + | + |
| Sorbose | + | + | + | + | − | + |
| Glucose | + | + | + | + | + | + |
| Sucrose | + | + | + | − | + | + |
| CO2 production from glucose | + | − | + | − | − | + |
| Growth at 30° | + | + | + | − | − | + |
| Growth at 37° | + | + | − | + | − | + |
| Growth at 42° | − | − | − | + | + | − |
| Catalase | − | − | − | − | − | − |
| Citrate | + | − | − | + | − | + |
1=Lactobacillus plantarum, 2=Lactobacillus casei, 3=Lactobacillus agilis, 4=Lactobacillus helveticus, 5=Lactobacillus delbrueckii, 6=Lactobacillus salivarius