Energy content of diets of variable amino acid composition

Variation in the distribution of dietary nitrogen among the different amino acids is one factor that can modify the calorie equivalent per weight of amino acid or protein. This is important to consider when experimental diets with different amino acid compositions are compared and when indirect calo...

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Published inThe American journal of clinical nutrition Vol. 52; no. 5; pp. 770 - 776
Main Authors May, ME, Hill, JO
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 01.11.1990
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Abstract Variation in the distribution of dietary nitrogen among the different amino acids is one factor that can modify the calorie equivalent per weight of amino acid or protein. This is important to consider when experimental diets with different amino acid compositions are compared and when indirect calorimetry is used to determine substrate oxidation rates. We developed a computer program to compute the energy content, oxygen equivalent, and respiratory quotient for arbitrary mixtures of amino acids and representative carbohydrates and fats. The calorie content of individual free amino acids was calculated by correction of the heat of combustion for the incomplete oxidation of amino acids characteristic of humans. Although these computations were presented before, we not report the limit of applicability of published values and the availability of the computer program to do these calculations.
AbstractList Variation in the distribution of dietary nitrogen among the different amino acids is one factor that can modify the calorie equivalent per weight of amino acid or protein. This is important to consider when experimental diets with different amino acid compositions are compared and when indirect calorimetry is used to determine substrate oxidation rates. We developed a computer program to compute the energy content, oxygen equivalent, and respiratory quotient for arbitrary mixtures of amino acids and representative carbohydrates and fats. The calorie content of individual free amino acids was calculated by correction of the heat of combustion for the incomplete oxidation of amino acids characteristic of humans. Although these computations were presented before, we not report the limit of applicability of published values and the availability of the computer program to do these calculations.
Variation in the distribution of dietary nitrogen among the different amino acids is one factor that can modify the calorie equivalent per weight of amino acid or protein. This is important to consider when experimental diets with different amino acid compositions are compared and when indirect calorimetry is used to determine substrate oxidation rates. We developed a computer program to compute the energy content, oxygen equivalent, and respiratory quotient for arbitrary mixtures of amino acids and representative carbohydrates and fats. The calorie content of individual free amino acids was calculated by correction of the heat of combustion for the incomplete oxidation of amino acids characteristic of humans. Although these computations were presented before, we now report the limit of applicability of published values and the availability of the computer program to do these calculations
Author May, ME
Hill, JO
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Cites_doi 10.1093/ajcn/47.4.608
10.1016/0022-4804(80)90005-0
10.1093/jn/118.11.1278
10.1177/0148607186010005446
10.1002/dmr.5610050303
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SubjectTerms ACIDE AMINE
Amino Acids - analysis
Amino Acids - metabolism
Amino Acids, Branched-Chain - analysis
Amino Acids, Branched-Chain - metabolism
AMINOACIDOS
Animals
APLICACIONES DEL ORDENADOR
APPLICATION DES ORDINATEURS
Calorimetry - methods
Diet
DIETA
Energy Metabolism
FISICA
Humans
MATEMATICAS
MATHEMATIQUE
METABOLISME ENERGETIQUE
METABOLISMO ENERGETICO
PHYSIQUE
Rats
REGIME ALIMENTAIRE
Software
VALEUR ENERGETIQUE
VALOR ENERGETICO
Title Energy content of diets of variable amino acid composition
URI https://dx.doi.org/10.1093/ajcn/52.5.770
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