Table 4.
Amino acid (AA) composition (g/100g of protein) of various seaweed species1.
| Type |
Red seaweed |
Green seaweed |
Brown seaweed |
Soybean meal |
|||
|---|---|---|---|---|---|---|---|
| Species | Porphyra columbina | Asparagopsis taxiformis | Ulva Spp. | Ascophyllum nodosum | Macrocystis pyrifera | Laminaria digitata | N × 6.25 |
| Essential AA | |||||||
| Methionine | 1.68 | 2.32 | 1.6-6.7 | 0.7 | 2.05 | 1.49 | 1.4 |
| Cysteine | 1.89 | 4.32 | 2.01-5.9 | trace | 3.5 | 1.96 | 1.38 |
| Valine | 5.85 | 6.19 | 4.4-6.7 | 3.7 | 4.45 | 6.01 | 5.34 |
| Iso-leucine | 2.71 | 5.09 | 2.6-3.7 | 2.8 | 3.20 | 2.61 | 5.31 |
| Leucine | 7.38 | 8.25 | 5.2-6.7 | 4.6 | 5.76 | 4.45 | 7.58 |
| Phenylalanine | 3.7 | 5.86 | 3.5-4.68 | 2.3 | 3.27 | 2.82 | 5.08 |
| Tyrosine | 2.55 | 3.67 | 1.4-3.0 | 0.9 | 2.68 | 1.74 | 3.35 |
| Histidine | 1.26 | 1.48 | 2.0-3.01 | 1.3 | 1.30 | 2.38 | 2.33 |
| Lysine | 6.01 | 4.32 | 3.8-4.4 | 4.9 | 5.05 | 4.77 | 6.65 |
| Threonine |
5.91 |
5.86 |
3.8-9.4 |
2.8 |
4.78 |
3.41 |
3.90 |
| Non-essential AA | |||||||
| Serine | 6.16 | 5.93 | 4.2-6.4 | 3.0 | 4.44 | 2.45 | 5.18 |
| Arginine | 6.19 | 7.15 | 4.5-5.0 | 8.0 | 3.83 | 2.96 | 7.72 |
| Glutamic acid | 10.5 | 10.89 | 13.5-12.7 | 10.0 | 13.83 | 3.86 | 18.4 |
| Aspartic acid | 12.2 | 12.24 | 7.9-12.4 | 6.9 | 10.04 | 4.69 | 14.14 |
| Proline | 3.96 | 5.15 | 0.0-2.8 | 2.6 | 3.73 | 1.91 | 5.99 |
| Glycine | 8.87 | 5.15 | 5.4-7.7 | 5.0 | 4.83 | 3.31 | 5.54 |
| Alanine | 12.54 | 7.35 | 5.98.7 | 5.3 | 11.43 | 4.51 | 4.54 |
N = nitrogen.
Sources: Anderson et al. (2006), Angell et al. (2012), Castro-Gonzalez et al. (1994), Cian et al. (2013), Imbs et al. (2009). Arieli et al. (1993), Dawczynski et al. (2007), Kolb et al. (2004), Makkar et al. (2016), Kuiken and Lyman (1949), Ortiz et al. (2006). Phorphyra columbina was collected from Punta Maqueda, Argentina (Cian et al., 2013); Asparagopsis taxiformis and Ulva spp. were collected from shallow reefs at Nelly Bay, Magnetic Island; Anderson et al., 2006); Ascophyllum nodosum was harvested off the coast of Nova (Angell et al., 2012); The samples of Macrocystis pyrifera was collected in summer in Bahía Tortu-gas, Baja California Sur (Castro-Gonzalez et al., 1994); Laminaria digitata was collected in Troitsa Bay of the Peter the Great Bay of the Sea of Japan (Kolb et al., 2004; Imbs et al. (2009). Soybean meals (mean value of 20 strains of soybean meals) were obtained through the cooperation of the United States Regional Soybean Laboratory at Urbana (Kuiken and Lyman, 1949). .