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. 2019 Sep 28;9(4):18-23.
doi: 10.1093/af/vfz038. eCollection 2019 Oct.

Can the digestible indispensable amino acid score methodology decrease protein malnutrition

Hannah M Bailey  1 , Hans H Stein  1
Affiliations

Can the digestible indispensable amino acid score methodology decrease protein malnutrition

Hannah M Bailey et al. Anim Front. .
No abstract available

Keywords: amino acids; animal protein; digestible indispensable amino acid scores; pig model; plant protein; protein quality.

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Figures

Figure 1.
Figure 1.
Differences between the protein digestibility corrected amino acid score (PDCAAS) system and the digestible indispensable amino acid score (DIAAS) system.
Figure 2.
Figure 2.
The calculated digestible indispensable amino acid score (DIAAS) value of a mixed meal of 60% milk and 40% wheat based breakfast cereal is 107, demonstrating the ability of milk to complement wheat resulting in a balanced meal that provides 100% of human AA requirements.
Figure 3.
Figure 3.
Example of the use of digestible indispensable amino acid score (DIAAS) values in making protein quality claims and how it differs from protein quantity claims. Adopted from FAO, 2013.
Figure 4.
Figure 4.
Steps in calculating digestible indispensable amino acid score (DIAAS) values. First, the standardized ileal digestibility (SID) of amino acid (AA) in the test food is determined in the human, pig, or rat. Then, this value (SID of AA in Test Food) is multiplied by the analyzed concentration (mg) of the same AA in a g of crude protein (CP) for the test food. Lastly, the calculated mg SID of each AA per gram of CP is divided by the same AA requirement level for a specific age group. This results in a calculated digestible indispensable AA (DIAA) reference value for each AA and the AA in least concentration is the DIAAS value assigned to the test food.
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References

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