Table 1.
Properties of bacterial and yeast β-galactosidases
| Microorganisms | Location of enzyme (intracellular/extracellular) | Temperature (°C) | pH | References |
|---|---|---|---|---|
| Bacteria | ||||
| Escherichia coli | Intracellular | 40 | 7.2 | |
| Lactobacillus thermophilus | Intracellular | 55 | 6.2 | |
| Bacillus circulans | Intracellular | 56 | 6.5 | Boon and Janssen (2000) |
| Leuconostoc citrovorum | Intracellular | 65 | 6.0 | Rao and Dutta (1978) |
| Yeast | ||||
| Kluyveromyces lactis | Intracellular | 30–35 | 6.5–7.0 | Roy and Gupta (2003) |
| Kluyveromyces fragilis | Intracellular | 30–35 | 6 | Roy and Gupta (2003) |