Table 2.
The PDCAAS calculation of the daily protein mixture containing 36% collagen peptides and 64% mixed proteins from the standard American diet, based on USDA’s CFSII data from 1994–1996, 1998.
| Indispensable Amino Acids | Reference Amino Acid Requirement Pattern * (mg/g) | Standard American Diet Protein Mixture | Collagen Peptides (Porcine Origin, Sample D) | Daily Protein Mixture Containing 36% Collagen Peptides and 64% Standard American Diet Protein Mixture | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| g/100 g | g/100 g Corrected for 96% Digestibility | AAS | g/100 g | g/100 g Corrected for 98.4% Digestibility | AAS | g/100 g | mg/g | AAS | ||
| Cys+Met | 25 | 3.68 | 3.53 | 1.41 | 0.72 | 0.71 | 0.28 | 2.50 | 25.00 | 1.00 ** |
| Histidine | 18 | 2.91 | 2.79 | 1.55 | 0.85 | 0.83 | 0.46 | 2.08 | 20.78 | 1.15 |
| Isoleucine | 25 | 4.70 | 4.51 | 1.80 | 1.61 | 1.58 | 0.63 | 3.44 | 34.39 | 1.38 |
| Leucine | 55 | 8.07 | 7.75 | 1.41 | 2.51 | 2.46 | 0.45 | 5.82 | 58.18 | 1.06 |
| Lysine | 51 | 6.97 | 6.69 | 1.31 | 4.31 | 4.22 | 0.82 | 5.79 | 57.92 | 1.14 |
| Threonine | 27 | 4.00 | 3.84 | 1.42 | 1.96 | 1.92 | 0.71 | 3.14 | 31.37 | 1.16 |
| Tryptophan | 7 | 1.20 | 1.16 | 1.65 | 0.00 | 0.00 | 0.00 | 0.73 | 7.34 | 1.05 |
| Tyr + Phe | 47 | 8.19 | 7.86 | 1.67 | 2.97 | 2.91 | 0.62 | 6.05 | 60.55 | 1.29 |
| Valine | 32 | 5.28 | 5.07 | 1.58 | 3.22 | 3.16 | 0.99 | 4.37 | 43.70 | 1.37 |
Cys + Met = Cysteine and Methionine; Tyr + Phe = Tyrosine and Phenylalanine; AAS = amino acid score; * Reference amino acid requirement pattern (mg/g) from DRI (Dietary Reference Intakes) 2005, for children above one year of age and all other older age groups [30]. ** This AAS represents the calculated PDCAAS of the dietary protein mixture.