Mehdi Edgipour - Department of chemical engineering, Isfahan University of Technology, Isfahan ۸۴۱۵۶۸۳۱۱۱, Iran
Kayghobad shams - Department of chemical engineering, Isfahan University of Technology, Isfahan ۸۴۱۵۶۸۳۱۱۱, Iran
Hamid Ramezani Pourpenchah - Department of chemical engineering, Isfahan University of Technology, Isfahan ۸۴۱۵۶۸۳۱۱۱, Iran

In this work, the batch foam fractionation of alpha amylase was studied as an alternative to other common applied methods such as chromatography, ultrafiltration, and precipitation techniques and the effects of gas flow rate, surfactant concentration, feed volume and ionic strength on enrichment ratio, recovery and volume ratio were investigated. The parametric studies show that the optimal conditions at steady-sate for the sysytem under investigation were as follows: gas flow rate = 0.3L/min, surfactant concentration = 100 mg/L, feed volume = 580 ml, and ionic strength = 0.05mol/L

Foam Fractionation, Alpha Amylase, Gas Flow Rate, Surfactant Concentration, Feed Volume, Ionic Strength