This book provides the readers with basic as well as advanced knowledge on microbial enzymes especially phytases. Phytases are a group of enzymes which hydrolyse phytic acid(a major constituent of cereals, legumes and oil seed crops) to less phosphorylated myo-inositol derivatives releasing inorganic phosphate. Although phytases can be derived from a host of sources, microorganisms are more promising for the production of phytases on a commercial scale. It discusses the concepts of isolation and purification of phytases from microbes. Various methods of optimization of media and fermentation...