Table 1 Effect of substrate concentration in the broth on the percentage of soluble phosphate released (%) by 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
Isolate | Glucose (g L-1) | Yeast extract (g L-1) | (NH4)2SO4 (g L-1) | RP (g L-1) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
5 | 10 | 20 | 30 | 0.1 | 0.5 | 1 | 2 | 0.1 | 0.5 | 1 | 2 | 1 | 5 | 10 | 20 | |
Rhodotorula sp. | 7.9 ± 0.3 a | 13.3 ± 1.2 b | 14.1 ± 1.5 b | 14.0 ± 0.8 b | 4.3 ± 0.3 c | 13.3 ± 0.7 b | 14.6 ± 1.1 b | 14.3 ± 0.8 b | 6.8 ± 0.5 a | 13.5 ± 1.1 b | 13.2 ± 1.3 b | 12.1 ± 0.7 b | 7.1 ± 0.3 a | 14.4 ± 0.7 b | 13.7 ± 0.6 b | 12.1 ± 1.4 b |
C. rugosa | 8.5 ± 0.6 a | 13.7 ± 1.3 b | 14.5 ± 0.3 b | 14.3 ± 0.4 b | 5.1 ± 0.4 c | 14.0 ± 1.3 b | 15.2 ± 0.7 b | 14.7 ± 1.1 b | 6.9 ± 1.0 a,c | 14.0 ± 1.3 b | 14.0 ± 1.2 b | 12.5 ± 0.7 b | 7.2 ± 0.6 a | 14.3 ± 1.7 b | 14.0 ± 0.9 b | 12.7 ± 0.5 b |
S. cerevisiae | 7.4 ± 0.6 a | 12.5 ± 1.1 b | 13.1 ± 0.6 b | 12.5 ± 1.2 b | 4.1 ± 0.3 c | 12.9 ± 1.0 b | 13.6 ± 1.7 b | 13.0 ± 0.6 b | 6.2 ± 0.8 a,c | 12.1 ± 0.3 b | 11.8 ± 0.9 b | 10.9 ± 0.4 b | 6.5 ± 0.5 a | 13.0 ± 0.8 b | 12.5 ± 1.1 b | 10.9 ± 0.5 b |
S. rouxii | 8.0 ± 0.7 a | 13.1 ± 1.8 b | 13.8 ± 0.6 b | 13.3 ± 1.2 b | 4.6 ± 0.4 c | 13.4 ± 0.6 b | 13.9 ± 0.9 b | 13.8 ± 0.7 b | 6.5 ± 0.9 a,c | 13.1 ± 0.7 b | 13.3 ± 1.3 b | 12.7 ± 1.1 b | 7.0 ± 0.6 a | 13.9 ± 1.2 b | 13.6 ± 1.2 b | 12.1 ± 0.7 b |