Table 4.
(i) Desalting effect observed in the three steps diafiltration process of Liquor + CaCl2 from ovSm (3.16 log R0) with a 1 kDa Amicon membrane; (ii) Desalting effect observed in one step concentration and seven steps diafiltration process of microfiltrated autohydrolysis liquor from fresh Sm (3.46 log R0) with a 1 kDa Amicon membrane. CaCl2E, CaCl2 equivalents; GAE, gallic acid equivalents; Ret, retentate; Perm, permeate.
| (i) Stream | Calculated Salt Concentration (g CaCl2E L−1) | (ii) Stream | Calculated Salt Concentration (g CaCl2E L−1) | Phenolic Content (g GAE g−1 Extract) |
|---|---|---|---|---|
| Liquor + 1% CaCl2 | 12.49 | Concentrate | 32.95 | 0.05 |
| Ret 1 | 5.58 | Perm | 30.36 | 0.03 |
| Perm 1 | 5.38 | Ret 1 ׀ Perm 1 | 19.27 ׀ 19.98 | - ׀ 0.03 |
| Ret 2 | 1.01 | Ret 2 ׀ Perm 2 | 11.87 ׀ 11.42 | 0.14 ׀ 0.02 |
| Perm 2 | 0.71 | Ret 3 ׀ Perm 3 | - ׀ 6.60 | 0.08 ׀ 0.03 |
| Ret 3 | 0.24 | Ret 4 ׀ Perm 4 | 5.53 ׀ 4.46 | 0.08 ׀ 0.03 |
| Perm 3 | 0.20 | Ret 5 ׀ Perm 5 | 4.28 ׀ 2.85 | 0.08 ׀ 0.03 |
| Pooled Perm | 1.81 | Ret 6 ׀ Perm 6 | 3.12 ׀ 1.56 | 0.09 ׀ 0.03 |
| Ret 7 ׀ Perm 7 | 2.23 ׀ 0.98 | 0.09 ׀ 0.02 |