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 ?
As a consequence, ingredients with elevated collagen fibre content are rich in non-essential amino acid, mainly glycine.
2006), affirm that even with supplementation of essential amino acids, too much reduction of protein may lead to a situation where part of the essential amino acids is diverted to the synthesis of non-essential amino acids due to lack of non-specific nitrogen for this process, thus reducing body protein deposition and animal performance.
It is well known that ProCHO5 is an enriched medium with high glucose, lipid, essential amino acid (EAA) and non-essential amino acid (NEAA).
The study noted that glutamate is a non-essential amino acid that is used commercially as glutamate sodium salt, monosodium glutamate (MSG) E-621, because it is stable and easy to dissolve.
Among non-essential amino acids Glutamic acid, Aspartic acid and Arginine were higher while Proline, Serine and Histidine were lower in amount in all analysed muscle samples.
The means for non-essential amino acid contents indicated that glutamic acid was present in highest concentration in cheddar (144.
8 ND = Not Determined Table 3: Non-essential amino acid compositions of treated and untreated of J.
Although glycine is classified as a non-essential amino acid, meaning that it is not necessary to obtain by dietary means, the team's research indicated that it should be considered essential as the body has limited capacity to synthesize glycine.
Table 4 also indicates the non-essential amino acid scores of okra seeds based on whole hen's egg amino acid profile.
The brand of energy drink used in the study is not being identified because most energy drinks on the market boast similar levels of caffeine and taurine, a non-essential amino acid derivative often found in meat and fish.
L-glutamine is known as a non-essential amino acid that is not a limiting amino acid for swine.

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