Table 5.
Total amino acid composition of goat raw milk from ‘Ailano’ and ‘Valle Agricola’. Values are means (±SD) and are expressed as g per 100 g of milk. See Section 2.2 of Materials and Methods section for more details.
| Total Amino Acid Composition of Goat Raw Milk | |||||
|---|---|---|---|---|---|
| Amino Acid | ‘Ailano’ | ‘Valle Agricola’ | p Value | Average Values | W.L. Claeys et al. |
| Essential amino acids | |||||
| His | 0.13 ± 0.02 a | 0.11 ± 0.00 a | >0.05 | 0.12 | 0.10 |
| Ile | 0.22 ± 0.03 a | 0.19 ± 0.01 a | >0.05 | 0.21 | 0.21 |
| Leu | 0.46 ± 0.03 a | 0.40 ± 0.02 a | >0.05 | 0.43 | 0.31 |
| Lys | 0.41 ± 0.03 a | 0.34 ± 0.01 b | <0.05 | 0.37 | 0.29 |
| Met | 0.14 ± 0.01 a | 0.14 ± 0.01 a | >0.05 | 0.14 | 0.08 |
| Phe | 0.26 ± 0.03 a | 0.23 ± 0.01 a | >0.05 | 0.25 | 0.16 |
| Thr | 0.30 ± 0.03 a | 0.28 ± 0.01 a | >0.05 | 0.29 | 0.24 |
| Trp | n.d. | n.d. | - | - | 0.04 |
| Val | 0.28 ± 0.03 a | 0.26 ± 0.01 a | >0.05 | 0.27 | 0.24 |
| Non-essential amino acids | |||||
| Ala | 0.17 ± 0.03 | 0.13 ± 0.01 | >0.05 | 0.15 | 0.12 |
| Arg | 0.16 ± 0.02 | 0.13 ± 0.01 | >0.05 | 0.14 | 0.12 |
| Asx | 0.39 ± 0.03 | 0.30 ± 0.01 | <0.01 | 0.34 | 0.21 |
| Cys & | 0.05 ± 0.01 | 0.04 ± 0.00 | >0.05 | 0.05 | 0.05 |
| Glx | 1.08 ± 0.09 | 0.98 ± 0.03 | <0.001 | 1.03 | 0.63 |
| Gly | 0.09 ± 0.01 | 0.07 ± 0.00 | >0.05 | 0.08 | 0.05 |
| Pro | 0.49 ± 0.05 | 0.45 ± 0.03 | >0.05 | 0.47 | 0.37 |
| Ser | 0.27 ± 0.04 | 0.27 ± 0.01 | >0.05 | 0.27 | 0.18 |
| Tyr | 0.22 ± 0.02 | 0.17 ± 0.01 | >0.05 | 0.20 | 0.18 |
| Total | 5.13 | 4.48 | - | 4.81 | 3.57 |
For protein amino acids, a three-letter code has been used. & Cys amount was evaluated after performic acid oxidation. n.d. not determined. Values followed by different letters within a row are significantly (p < 0.05) different by Bonferroni post-test.