Table 2 Total protein and composition in amino acid (g/100 g food) of selected foods derived from the conventional method (USDA) and from the gene sequencing method (Study)

From: Evaluation of a novel food composition database that includes glutamine and other amino acids derived from gene sequencing data

  Beef (g) Skim milk (g) White rice (g) Corn (g) Tofu (soy) (g) Egg (g)
Total protein in food 25.9 3.4 2.7 2.5 6.6 12.6
Method USDA Study USDA Study USDA Study USDA Study USDA Study USDA Study
Sum of amino acids 25.0 25.9 3.2 3.4 2.7 2.7 2.6 2.5 6.3 6.6 12.5 12.6
Alanine 1.577 1.560 0.100 0.141 0.156 0.140 0.172 0.216 0.268 0.211 0.696 0.682
Arginine 1.677 1.604 0.072 0.106 0.224 0.282 0.126 0.091 0.436 0.519 0.749 0.813
Asparagine   0.827   0.119   0.152   0.074   0.399   0.520
Aspartate 2.363 1.414 0.243 0.103 0.253 0.082 0.219 0.037 0.724 0.376 1.255 0.676
Cysteine/inea 0.335 0.384 0.123 0.040 0.055 0.052 0.038 0.067 0.091 0.190 0.290 0.367
Glutamine   1.231   0.275   0.301   0.406   0.603   0.559
Glutamate 3.894 2.658 0.673 0.365 0.524 0.163 0.438 0.052 1.133 0.664 1.633 1.014
Glycine 1.580 1.396 0.050 0.063 0.122 0.114 0.085 0.061 0.256 0.220 0.420 0.387
Histidine 0.828 0.822 0.075 0.088 0.063 0.067 0.067 0.091 0.191 0.185 0.296 0.306
Isoleucine 1.180 1.093 0.150 0.192 0.116 0.118 0.137 0.088 0.324 0.345 0.682 0.623
Leucine 2.063 2.164 0.327 0.383 0.222 0.220 0.251 0.366 0.498 0.548 1.067 0.916
Lysine 2.192 2.160 0.252 0.211 0.097 0.079 0.153 0.037 0.431 0.432 0.897 0.904
Methionine 0.676 0.641 0.062 0.088 0.063 0.042 0.068 0.054 0.084 0.158 0.390 0.382
Phenylalanine 1.025 1.051 0.145 0.160 0.144 0.160 0.131 0.104 0.319 0.346 0.664 0.686
Proline 1.237 1.697 0.343 0.298 0.127 0.117 0.181 0.279 0.353 0.292 0.498 0.451
Serine 1.022 1.406 0.168 0.197 0.141 0.175 0.156 0.126 0.309 0.377 0.929 1.296
Threonine 1.036 1.166 0.082 0.142 0.096 0.090 0.115 0.103 0.268 0.235 0.600 0.535
Tryptophan 0.170 0.352 0.040 0.046 0.031 0.032 0.031 0.017 0.102 0.065 0.152 0.203
Tyrosine 0.827 0.937 0.148 0.164 0.09 0.136 0.106 0.093 0.219 0.175 0.510 0.495
Valine 1.287 1.339 0.180 0.218 0.164 0.177 0.167 0.139 0.331 0.259 0.761 0.781
  1. aCysteine is estimated from the gene sequencing method (Study) and cystine from the conventional method (USDA).