Antibacterial Activity of Fistulin: A Protease Inhibitor Purified from the Leaves of Cassia fistula

Table 1

Purification profile of fistulin.

Purification steps	Extent of inhibition of trypsin (%)	Protein (mg)	Yield (%)	Purification (fold)
Crude extract	8.0	500.2	100	1
Ammonium sulphate fractionation	41.0	161.5	32.3	5
Sephadex G-100 gel filtration chromatography	74.0	77.0	15.4	9.2