Table 4.
Amino acid patterns of different egg parts in the retail market compared to recommended daily allowance standard Food and Agriculture Organization (FAO)/World Health Organization (WHO) [22] values of adults (70 kg).
| Crude Protein (g/100 g)/Amino Acid (mg/100 g) | Egg Part | Statistical Analysis | RDA, mg/kg Day | |||
|---|---|---|---|---|---|---|
| Whole Eggs | Albumen | Yolk | RMSE | p-Value | ||
| Crude protein | 13.95 b (26.6%) | 12.42 c (23.7%) | 16.00 a (30.5%) | 3.32 | 0.054 | 0.75 g/kg per day |
| Arginine | 814.9 b | 525.6 c | 1142.8 a | 43.93 | 0.001 | -- |
| Histidine | 312.3b (44.6%) | 209.5c (29.9%) | 399.8 a (57.1%) | 16.33 | 0.001 | 10 (700 mg/day) |
| Isoleucine | 668.3 b (47.7%) | 551.1 c (39.4%) | 785.1 a (56.1%) | 22.63 | 0.001 | 20 (1400 mg/day) |
| Leucine | 1091.8 b (40.0%) | 819.2 c (30.0%) | 1385.1 a (70.7%) | 31.42 | 0.001 | 39 (2730 mg/day) |
| Lysine | 956.3 b (45.5%) | 743.5 c (35.4%) | 1260.6 a (60.0%) | 27.13 | 0.001 | 30 (2100 mg/day) |
| Methionine | 353.8 b (48.6%) | 315.9 c (43.4) | 374.5 a (51.4) | 18.94 | 0.001 | 10.4 (728 mg/day) |
| Methionine + cysteine | 546.4 b (52.0%) | 455.4 c (43.4%) | 608.4 a (57.9%) | 29.99 | 0.001 | 15 (1050 mg/day) |
| Phenylalanine | 645.1 b | 516.2 c | 669.2 a+ | 27.64 | 0.001 | -- |
| Phenyalanine + tyrosine | 1168.4 b (66.8%) | 933.1 c (53.3%) | 1379.1 a (78.8%) | 34.73 | 0.001 | 25 (1750 mg/day) |
| Threonine | 614.4 b (58.5%) | 440.3 c (41.9%) | 856.1 a (81.5%) | 27.87 | 0.001 | 15 (1050 mg/day) |
| Tryptophan | 143.1 b (51.1%) | 120.1 c (42.9%) | 219.1 a (78.3%) | 23.13 | 0.001 | 4 (280 mg/day) |
| Valine | 744.6 b (40.9%) | 588.0 c (32.3%) | 864.7 a (47.5%) | 49.06 | 0.001 | 26 (1820 mg/day) |
| EAAs | 5549.9 b | 4348.7 c | 6814.4 a | 104.2 | 0.001 | -- |
| Alanine | 664.8 b | 572.4 c | 801.4 a | 31.78 | 0.001 | -- |
| Aspartic acid | 1271.2 b | 1019.9 c | 1548.8 a | 33.79 | 0.001 | -- |
| Glutamic acid | 1649.6 b | 1262.6 c | 2019.8 a | 33.52 | 0.001 | -- |
| Glycine | 430.7 b | 378.8 c | 498.9 a | 23.81 | 0.001 | -- |
| Proline | 514.9 b | 367.1 c | 650.4 a | 15.51 | 0.001 | -- |
| Serine | 998.2 b | 676.4 c | 1342.9 a | 28.39 | 0.001 | -- |
| NEAAS | 7059.9 b | 5314.4 c | 8948.9 a | 136.2 | 0.001 | -- |
| EAAs/NEAAs | 0.786 b | 0.818 a | 0.761 c | 0.022 | 0.001 | -- |
a–c Means with varying superscripts differ significantly (p < 0.05); RMSE, Root mean square error; p value, probability level; FAO/WHO, Food and Agriculture Organization/World Health Organization; RDA, recommended daily allowance; EAAs, total essential amino acids; NEAAs, total non-essential amino acids; EAAs/NEAAs, total essential amino acids/total non-essential amino acids ratio.