4. Conclusion
Evaluation of fractions obtained by ultrafiltration of crude
extract of common bean seed for their suitability for turbidity
removal revealed that they were efficient in it although
their coagulation activities were slightly lower that of crude
extract. Obtained fractions brought reduced organic load into
the water after the treatment in comparison to crude extract or
even diminished it in comparison to blank. According to these
results ultrafiltration appeared to be promising technique for
processing crude extract of common bean seed in respect of its
simplicity in comparison to multistep isolation and purification
procedures.