Table 6.
Amino acid compositions of yeast sludge biomass generated in each treatment process with shochu wastewater
| Amino acid | Repeated-batch cultivation | Fed-batch cultivationa | ||||
|---|---|---|---|---|---|---|
| (% of crude protein) | Barley | Barley | Sweet-potato | Sweet-potato | Barley | Mixed |
| IFO1086 | UNA1 | IFO1086 | UNA1 | UNA1 | UNA1 | |
| Arginineb | 4.47 | 4.32 | 4.58 | 4.06 | 4.76 | 5.19 |
| Glycine | 4.32 | 4.29 | 4.76 | 4.41 | 4.13 | 4.53 |
| Histidineb | 2.49 | 2.12 | 2.02 | 1.73 | 2.48 | 2.23 |
| Isoleucineb | 3.91 | 3.93 | 4.11 | 4.08 | 3.87 | 4.10 |
| Leucine | 3.87 | 4.07 | 5.29 | 5.84 | 3.96 | 4.64 |
| Lysineb | 0.56 | 0.89 | 3.73 | 5.21 | 0.76 | 2.21 |
| Methionineb | 0.97 | 0.77 | 1.55 | 1.37 | 2.27c | 1.99c |
| Phenylalanineb | 8.21 | 7.64 | 6.41 | 4.96 | 7.83 | 6.99 |
| Tyrosine | 4.73 | 4.21 | 2.37 | 1.96 | 4.46 | 4.01 |
| Valineb | 3.87 | 3.91 | 4.90 | 4.93 | 4.00 | 4.53 |
| Serine | 3.97 | 4.01 | 5.14 | 5.17 | 4.17 | 4.84 |
| Alanine | 1.87 | 2.34 | 2.99 | 3.73 | 2.06 | 2.47 |
| Aspartic acid | 2.02 | 2.52 | 3.47 | 4.5 | 2.15 | 2.87 |
| Glutamic acid | 3.98 | 4.66 | 5.83 | 7.09 | 4.17 | 4.95 |
| Proline | 13.04 | 12.74 | 5.60 | 3.92 | 12.50 | 7.40 |
| Threonineb | 5.12 | 5.05 | 5.76 | 5.54 | 4.93 | 5.54 |
These experiments were conducted in triplicate.
apH value was controlled at 5.0 with H2SO4.
bEssential amino acids.
cSignificantly different from repeated-batch cultivation (p < 0.05) by t-test.