Related Experiment Video
Updated: Jul 4, 2026

Primary Clarification of CHO Harvested Cell Culture Fluid using an Acoustic Separator
Published on: May 14, 2020
The separation of affinity flocculated yeast cell debris using a pilot-plant scroll decanter centrifuge
A C Bentham1, J Bonnerjea, C B Orsborn
1SERC Centre for Biochemical Engineering, Department of Chemical and Biochemical Engineering, University College London, Torrington Place, London WC1E 7JE.
Abstract:
The use of a scroll decanter centrifuge for the removal and dewatering of affinity-flocculated yeast cell debris from a crude homogenate is described. Laboratory shear modulus measurements were used to compare the structure of flocculated and nonflocculated sediments and to indicate the dewatering conditions under which the sediment could be discharged from the centrifuge. The structure of the flocculated sediment was such that a dry beach could be used within the centrifuge while still being able to discharge the solids. The scroll decanter performance for recovery and dewatering of the flocculated homogenate was found to be independent of feed flow rate and differential scroll rate. Eighty-five percent of the solid material was recovered from the flocculated homogenate while the extent of sediment dewatering resulted in the loss of only 7% of the soluble protein in the sediment. The supernatant clarity matched that achieved by low-gravity laboratory centrifugation studies.
Related Concept Videos
Centrifugation
Overview Of Cell Separation And Isolation
Subcellular Fractionation
Differential Centrifugation
Differential centrifugation is...
Downstream Processing
Production of Alcohol

