Fig. 1

Gel filtration chromatography (GFC) protein profiles of (A) DVA, and (B) FDVA. Detection was performed at 260 nm. In each chromatogram, the trace for the PBS extract (lower) is overlaid by that of the simulated gastrointestinal digest of the same sample (upper). The dashed vertical lines at 9.9 min indicate the retention time at which a 7.5 kDa polypeptide would be expected to elute from the column, based upon calibration of the GFC column with protein standards of known molecular weights. Salt eluted from the column at 11.8 min