Probiotic Potential of Lactic Acid Starter Cultures Isolated from a Traditional Fermented Sorghum-Millet Beverage

Table 6

Antimicrobial activity of lactic acid bacteria isolates.

Cell-free culture supernatant treatment	Escherichia coli ATCC 25922	Staphylococcus aureus ATCC 25923	Salmonella enterica
No treatment
Lactobacillus rhamnosus yoba 2012	+	+	+
Weissella confusa MNC 20	+	+	+
Lactobacillus plantarum MNC 21	+	+	+
Lactococcus lactis MNC 24	+	+	+
pH = 6.5
Lactobacillus rhamnosus yoba 2012	−	−	−
Weissella confusa MNC 20	−	−	−
Lactobacillus plantarum MNC 21	−	−	−
Lactococcus lactis MNC 24	−	−	−
100°C for 15 min
Lactobacillus rhamnosus yoba 2012	+	+	+
Weissella confusa MNC 20	+	+	+
Lactobacillus plantarum MNC 21	+	+	+
Lactococcus lactis MNC 24	+	+	+
Proteinase K (37°C, 3 h)
Lactobacillus rhamnosus yoba 2012	+	+	+
Weissella confusa MNC 20	+	+	+
Lactobacillus plantarum MNC 21	+	+	+
Lactococcus lactis MNC 24	+	+	+

Inhibition zone diameter: –(<11 mm); +(11–16 mm) [16].