Studies of Polystyrene-Based Ion-Exchange Fiber. V. Immobilization of Microorganism Cells by Adsorption on a Novel Fiber-Form Anion Exchanger

Publisher Website
Google Scholar
Abstract
Immobilization of microorganism cells by adsorption on a new polystyrene-based ion-exchange fiber has been studied. Microorganism cells, such as yeasts, bacteria, and actinomycetes, were well adsorbed on the anion-exchange fibers through an electrostatic force. The adsorption capacity for the cells became much greater as the water-holding capacity of the fibers increased. The adsorption and desorption behavior of the cells was different between actinomycetes and yeasts, and also between strong and weak anionexchange fibers. The enzyme activities of the immobilized actinomycetes containing glucose isomerase and yeasts containing l-aminolactam hydrolase were ca. 70 and 60% of those of the native cells respectively. The stability of the immobilized yeasts in the hydrolysis of Dl-cyclic lysine anhydride was also investigated.
Keywords