Sample Description % antigen 1 recovered
Homogenized supernatant (12 L) 100
Homogenized pellet (12 L) 0
Clarified permeate during 5-fold concentration of homogenate (9.5 L) 75
Diafiltered permeate (4x) (6L) 22
Unclarified Retentate (0.2 L) 0.5
Table 2: The recovery of antigen after clarification using cross-flow filtration.