Table 2.

Inhibitory activity of Kombucha LAB isolates on pathogenic microorganisms were tested using an adapted disk diffusion method.

Pathogenic Microorganisms	S1	S2	S3	L3	L5	F1	F2
Bacteria
Escherichia coli ATCC 8739	+	+	+	+	+	+	+
Salmonella enterica Typhimurium ATCC 14028	+ + +	+ ++	+ + +	+ + +	+ +	+ + +	+ + +
Staphylococcus epidermidis ATCC 12228	+ +	+ +	+ +	+ +	+ +	+ +	+ +
Staphylococcus epidermidis ATCC 51625	+ +	+ +	+ +	+ +	+ +	+ +	+ +
Staphylococcus aureus ATCC 25923	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +
Staphylococcus aureus ATCC 6538	+ +	+ + +	+ + +	+ + +	+ + +	+ + +	+ +
Staphylococcus aureus ATCC 43300	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +
Staphylococcus aureus ATCC 33592	+ +	+ +	+ +	+ + +	+ + +	+ +	+ + +
Listeria ivanovii ATCC 19119	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +
Listeria monocytogenes ATCC 7644	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +
Proteus hauseri (vulgaris) ATCC 13315	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +
Streptococcus pyogenes ATCC 19615	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +
Bacillus cereus CP1	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +	+ + +
Yeast
Candida albicans ATCC 10231	+	++	+	++	++	+	+
Candida parapsilosis ATCC 20019	+	+	+	++	++	+	+
Candida guilermondii MI 40	+	+	+	++	++	+	+
Candida krusei MI 41	-	-	-	-	-	-	-
Molds
Aspergillus niger M4	+	+	-	+	+	-	+
Aspergillus carbonarius MI 15	+	+	+	++	++	++	+
Aspergillus flavus MI 24	+	+	-	+	+	-	-
Penicillium digitatum MI 22	+++	++	++	+++	+++	+++	+++
Penicillium expansum MI BB Huși	+++	+++	++	++	+++	+++	+++

Legend: (-) = no halo formation; (+) inhibition halo of 1–5 mm diameter; (++) halo of 6–17 mm diameter; (+++) halo of 18–29 mm diameter.