Stable microbial α-amylases are required for industrial applications in robust conditions.
Thermo and pH tolerance, Ca2+ independency and oxidant stability are major concerns.
Stable α-amylases are obtained from extremophiles and genetically manipulated non extremophiles.
Stability of α-amylases can also be improved by different methods.
This review summarized various strategies used for the improvement of α-amylase stability.