Table 3 Effect of initial pH on the percentage of soluble phosphate released (%) by the yeast isolates. Results represent means ± SD of three independent experiments. Means with the same letter in a row are not significantly different at P < 0.05

Rhodotorula sp.

1.8 ± 0.2 a

3.8 ± 1.1 b

7.2 ± 0.9 c

9.9 ± 1.3 d

13.5 ± 0.7 e

13.7 ± 1.7 e

12.2 ± 1.1 e

8.0 ± 0.4 c,d

5.7 ± 0.6 b,c

2.9 ± 0.3 a,b

C. rugosa

1.7 ± 0.6 a

4.0 ± 0.7 b

7.6 ± 0.3 c

10.7 ± 0.7 d

14.4 ± 1.3 e

14.0 ± 1.1 e

12.5 ± 1.6 d,e

8.5 ± 0.3 c

6.5 ± 0.9 c

3.5 ± 1.2 b

S. cerevisiae

1.6 ± 0.3 a

3.3 ± 1.0 b

6.3 ± 0.9 c

10.5 ± 0.9 d

13.0 ± 0.4 e

12.9 ± 0.9 e

10.7 ± 0.6 d

7.1 ± 0.6 c

4.7 ± 0.2 b,c

2.4 ± 0.2 a,b

S. rouxii

2.0 ± 0.8 a

3.7 ± 0.7 b

6.5 ± 0.7 c

11.1 ± 1.1 d

14.3 ± 0.4 e

13.7 ± 0.3 e

11.5 ± 0.6 d

7.9 ± 1.1 c

5.4 ± 0.9 b,c

2.5 ± 0.5 a