Table 2.
Composition (%) and essential amino acid contents (in g/100 g) of different plant and animal protein sources.
| Composition (% ) |
Egg Dried |
Beef ** | Milk Dry Whole |
Soy | Wheat Flour | Pea Seeds | Lupine Seeds | Sunflower Seed Kernels | Peanut Flour Low Fat | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Isolate | Concentrate | Flour | ||||||||||
| Protein | 48.05 | 21.91 | 26.32 | 83.3 ± 0.7 (N × 5.7) | 63.63 | 37.0 ± 1.1 (N × 5.7) |
9.61 | 23.12 | 36.17 | 20.78 | 33.8 | |
| Lipid | 43.9 | 4.62 | 26.71 | - | 0.46 | 21.8 ± 0.4 | 1.95 | 3.89 | 9.74 | 51.46 | 21.9 | |
| Carbohydrates | 1.13 | 0 | 38.42 | 13.3 ± 0.7 | 25.41 | 34.5 ± 2.2 | 74.48 | 61.63 | 40.37 | 20 | 31.27 | |
| Ash | 4.13 | 1.09 | 6.08 | 3.4 +0.0 | 4.7 | 6.7 ± 0.7 | 1.53 | 2.67 | 3.28 | 3.02 | 5.23 | |
| Reference | [287] | [287] | [287] | [288] | [287] | [288] | [287] | [287] | [287] | [287] | [287] | |
| Essential amino acids | Recommended daily allowances (RDA in mg, for a 70-kg man) | Essential amino acids content in g/100 g of product | ||||||||||
| Egg | Beef | Milk | Soy isolate | Soy concentrate | Defatted soy flour | Wheat flour | Pea seeds | Lupine seeds | Sunflower Seed kernels | Peanut flour low fat | ||
| Histidine | 700 | 1.202 | 0.699 | 0.714 | 2.303 | 1.578 | 1.268 | 1.4 | 0.586 | 1.03 | 0.632 | 0.854 |
| Isoleucine | 1400 | 2.434 | 0.997 | 1.592 | 4.253 | 2.942 | 2.281 | 2.0 | 0.983 | 1.615 | 1.139 | 1.188 |
| Leucine | 2730 | 4.15 | 1.743 | 2.578 | 6.783 | 4.917 | 3.828 | 5.0 | 1.68 | 2.743 | 1.659 | 2.191 |
| Lysine | 2.100 | 3.339 | 1.852 | 2.087 | 5.327 | 3.929 | 3.129 | 1.1 | 1.771 | 1.933 | 0.937 | 1.213 |
| Methionine | 1050 * | 1.495 | 0.571 | 0.66 | 1.13 | 0.814 | 0.634 | 0.7 | 0.195 | 0.255 | 0.494 | 0.415 |
| Phenylalanine | 1750 * | 2.53 | 0.865 | 1.271 | 4.593 | 3.278 | 2.453 | 3.7 | 1.151 | 1.435 | 1.169 | 1.752 |
| Tryptophan | 280 | 0.775 | 0.144 | 0.371 | 1.116 | 0.835 | 0.683 | Not measured | 0.159 | 0.289 | 0.348 | 0.328 |
| Threonine | 1050 | 2.129 | 0.875 | 1.188 | 3.137 | 2.474 | 2.042 | 1.8 | 0.813 | 1.331 | 0.928 | 1.158 |
| Valine | 1820 | 2.991 | 1.087 | 1.762 | 4.098 | 3.064 | 2.346 | 2.3 | 1.035 | 1.51 | 1.315 | 1.418 |
| Reference | [289] | [287] | [287] | [287] | [287] | [287] | [287] | [290] | [287] | [287] | [287] | [287] |
* These values are reported as the sum of cysteine and methionine, and phenylalanine and tyrosine ** Beef, top sirloin, steak, separable lean only, trimmed to 1/8” fat, choice, raw.