Table 8.
Heavy metal composition of P. ostreatus mushrooms cultivated on supplemented substrates.
| Cu (ppm) | Ni (ppm) | Pb (ppm) | |
|---|---|---|---|
| C0t0 | 13.9 ± 0.1f. | 8.8 ± 0.16a | 6.2 ± 0.07a |
| C1t1 | 6.76 ± 0.11b | 19.6 ± 0.16bc | 16.32 ± 0.08b |
| C1t2 | 19.6 ± 1.14g | 22.7 ± 0.10c | 27.26 ± 0.11f. |
| C1t3 | 3.18 ± 0.15a | 21.66 ± 0.11c | 21.62 ± 0.08d |
| C2t1 | 8.4 ± 0.16c | 22.3 ± 0.07c | 27.18 ± 0.08f |
| C2t2 | 11.26 ± 0.11e | 20.8 ± 1.48b | 17.58 ± 0.15c |
| C2t3 | 10.26 ± 0.18d | 22.8 ± 0.16c | 23.16 ± 0.18e |
| Sig. level | |||
| Dose | 0.447 | 0.005 | 0.000 |
| Timing | 0.000 | 0.000 | 0.000 |
| Dose × timing | 0.000 | 0.000 | 0.000 |
C1 3 g kg−1, C2 5 g kg−1, t1 supplementation at spawning, t2 supplementation after the first harvest, t3: supplementation at spawning and after the first harvest. Values are means; means within the same column followed by the same letters are not significantly different at P < 0.05 according to Duncan’s multiple range test.