Table 2. Effect of different treatments (heat, pH and trypsin) on bacteriocin activity of the C-2 and Y-1 isolates

Treatments	Bacteriocin activity of C-2 (%)	Bacteriocin activity of Y-1 (%)
Heating
60°C 30 min	100	100
100°C 10 min	75	100
100°C 20 min	75	100
100°C 45 min	75	100
121°C 15 min	50	75
pH
2-5	80	90
5-10	100	100
10-12	70	80
Trypsin	0	0