Abstract
The foam fractionation of nisin from its fermentation broth was studied. Two types of devices consisting of a rubber piston and a foam riser were developed to enhance foam drainage. The separation performance of these two devices was investigated. Experimental results indicated that the second device could significantly reduce the liquid fraction of the foam leaving the column, ɛout, leading to a higher enrichment of the out-flow stream. As its mounting height increased from 0 to 15 cm, ɛout declined from 7.07‰ to 6.13 ‰ and the maximum nisin activity in the foamate could reach 39.6 IU/μL. The slight increase in nisin inactivation rate indicated the applicability of this method in the recovery and concentration of proteins. Finally, the mechanism of the process was primarily explained by invoking recent work on pneumatic foams. This research provides a basis for the design of multistage draining foam fractionator which could potentially be an effective separation equipment.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
