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. 2019 Sep 7;9(9):461. doi: 10.3390/biom9090461

Table 2.

Amino acid composition in nitrogen sources.

Amino Acid Amino Acid Concentration (g-Amino Acid/100 g-Nitrogen Source)
CH Yeast Extract Peptone
Aspartic acid 6.12 6.54 5.82
Threonine 3.69 3.19 2.18
Serine 4.42 3.29 3.33
Glutamate 18.01 12.44 9.97
Proline 7.48 2.80 10.13
Glycine 1.69 3.07 20.00
Alanine 2.75 5.75 8.87
Valine 5.58 4.16 2.88
Isoleucine 4.33 3.45 1.76
Leucine 7.46 4.92 3.48
Tyrosine 3.19 0.70 0.48
Phenylalanine 3.88 2.90 2.15
Lysine 6.65 5.29 3.89
Histidine 2.11 1.38 0.82
Arginine 2.84 3.41 7.10
Cysteine 0.47 1.07 0.34
Methionine 2.46 1.08 0.84
Total content 83.13 65.42 84.06