Characterization of Lactic Bacteria Isolated from Raw Milk and Their Antibacterial Activity against Bacteria as the Cause of Clinical Bovine Mastitis

Table 2

Antimicrobial potential of selected LAB strains against six pathogenic bacteria.

LAB strains	Indicator strains
	Escherichia coli	Bacillus subtilis	Listeria monocytogenes	Staph. aureus	Salmonella typhimurium	Pseudomonas aeruginosa
ILT6	+++	+++	++++	+++	++	++
ILT7	+	++	+	+++	++	+++
ILT1	+++	+++	+++	++	+++	+++
ILT2	++	+++	+++	++	++	+++
ILT3	+	++	+	+	+	+
ILT4	++	+++	+++	++++	++++	+++
ILT5	+++	+++	++++	++	+++	++

Note. −: negative reaction; +: area of inhibition zone <200 mm²; ++: area of inhibition zone between 200 and 400 mm²; +++: area of inhibition zone between 400 and 600 mm²; ++++: area of inhibition zone >600 mm².