Science – Society – Technology
Table 1 Different categories of extremophiles and their respective limits of the concerned parameters
Parameters | Category | Limits |
|---|---|---|
High temperature [°C] | Thermophile | 45–80 °C |
High temperature [°C] | Hyperthermophile |  > 80 °C |
Pressure [MPa] | Barophile (or piezophile) | 10–50 MPa |
Pressure [MPa] | Hyperbarophile |  > 50 MPa |
Salinity | Halophile | NaCl (w/v) > 8.8% |
High pH | Alkaliphile | pH > 9 |
Low pH | Acidophile | pH < 5 |