Table 2 pH tolerance of the LAB and Yeast isolates.

From: Production of improved Ethiopian Tej using mixed lactic acid bacteria and yeast starter cultures

No

Isolates

Acid tolerance, OD (Mean ± SD)

pH 2.5

pH 3.5

pH 4.5

1

L6

0.38 ± 0.04a

0.97 ± 0.01c

5.4 ± 0.00b

2

L7

0.42 ± 0.01a

4.6 ± 0.20a

6.0 ± 0.14a

3

L8

0.36 ± 0.00a

3.17 ± 0.11b

5.3 ± 0.14b

4

L2

0.37 ± 0.04a

0.91 ± 0.01c

5.1 ± 0.28b

5

Y4

0.19 ± 0.07a

0.27 ± 0.01a

0.27 ± 0.01a

6

Y6

0.21 ± 0.04a

0.30 ± 0.01a

0.31 ± 0.01a

7

Y2

0.23 ± 0.03a

0.26 ± 0.01a

0.33 ± 0.01a

8

Y5

0.18 ± 0.01a

0.26 ± 0.03a

0.23 ± 0.00 a

  1. NB: OD, optical density; L, lactic acid bacteria isolates; Y, yeast isolates and the numbers next to the letters represent the isolate number; means with different superscript letters in the same column for the LAB and yeasts separately are statistically significant at p < 0.05.