Table 1.

Biochemical purification of bacteriocin L-1077 using specified procedures

Sample purification step	Protein (mg/ml)	Sp act (AU/mg protein) against C. jejuni	Purity (%)
Culture supernatant	1.3	435	0
Gel filtration on Superose 12 HR 10/30	0.02	80,000	13.3
Binding to SP-Sepharose FF	0.015	107,000	76.4
Hydrophobic-interaction chromatography on Phenyl Sepharose 6 Fast Flow	0.007	229,000	95.7