essential amino acid

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essen′tial ami′no ac′id

any amino acid that is required for life and growth but is not produced in the body, or is produced in insufficient amounts, and must be supplied by protein in the diet.
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Noun1.essential amino acid - an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet
amino acid, aminoalkanoic acid - organic compounds containing an amino group and a carboxylic acid group; "proteins are composed of various proportions of about 20 common amino acids"
arginine - a bitter tasting amino acid found in proteins and necessary for nutrition; its absence from the diet leads to a reduced production of spermatozoa
histidine - an essential amino acid found in proteins that is important for the growth and repair of tissue
isoleucine - an essential amino acid found in proteins; isomeric with leucine
leucine - a white crystalline amino acid occurring in proteins that is essential for nutrition; obtained by the hydrolysis of most dietary proteins
lysine - an essential amino acid found in proteins; occurs especially in gelatin and casein
methionine - a crystalline amino acid containing sulfur; found in most proteins and essential for nutrition
phenylalanine - an essential amino acid found in proteins and needed for growth of children and for protein metabolism in children and adults; abundant in milk and eggs; it is normally converted to tyrosine in the human body
threonine - a colorless crystalline amino acid found in protein; occurs in the hydrolysates of certain proteins; an essential component of human nutrition
tryptophan, tryptophane - an amino acid that occurs in proteins; is essential for growth and normal metabolism; a precursor of niacin
valine - an essential amino acid found in proteins; important for growth in children and nitrogen balance in adults
esenciální aminokyselina
References in periodicals archive ?
05 Table 2: Essential amino acid compositions of treated and untreated of J.
Phenylalanine is one of the few essential amino acids that humans and animals cannot synthesize, so it must come from plants.
It can be used throughout life as a protein source that is extremely low in phenylalanine and balanced for the remaining essential amino acids.
As a part of our studies on essential amino acid requirements of rainbow trout, the purpose of the present study was to estimate the dietary methionine requirement based on the plasma free methionine and ammonia concentrations in dorsal aorta cannulated rainbow trout.
c) The essential amino acid score based on suggested school child requirement [10].
According to an FAO official, because rats grow faster than humans (increasing the rat's essential amino acid requirements), PER overestimated the value of some animal proteins for human growth and underestimated the value of some vegetable proteins.
It has less fat than chicken, and also has more nutrients, including tryptophan which is an essential amino acid crucial for good health.
Animals produce SAM-e from the essential amino acid methionine energy-yielding compound adenosine triphosphate.
PepForm[TM] Leucine Peptides is a new product from Glanbia Nutritionals that contains high levels of leucine-rich peptides isolated from whey proteins to deliver the essential amino acid L-Leucine in a soluble and highly bioavailable form.
Methionine was an essential amino acid found at the lowest level, 0.
Still, Praticr emphasized, methionine is an essential amino acid for the human body and "stopping one's intake of methionine won't prevent Alzheimer's.
Establishing the optimum pattern of dietary essential amino acids will be an approach to attain the requirements (g/kg diet) of all essential amino acids for Taiwan country chickens because they would be computed by means of multiplying the optimum pattern by the requirement for a single essential amino acid resulting from dose-response trials.