reviewed the protein
composition of different types of phaseolins and reported a relatively
similar amino acid profile. In comparison to NBF, the PR fraction
was lower in cysteine. This would suggest that the proteins
with higher cysteine content are found predominantly in the SR
fraction. The high cysteine content proteins being more resistant
to the milling process may still be attached to the starch particles,
making it more challenging to separate them by triboelectrification