essential amino acid

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essential amino acid

Etymology: L, essentia, quality
an organic compound not synthesized in the body that is essential for protein synthesis in adults and optimal growth in infants and children. Adults require isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. Infants need these amino acids plus arginine and histidine. Cysteine and tyrosine are derived from methionine and phenylalanine, respectively, and are considered semiessential. See also amino acid, nonessential amino acid.

essential amino acid

An amino acid that is required for growth and development but that cannot be produced by the body and must be obtained from food. The essential amino acids are histidine, isoleucine, leucine, lysine, methionine, cysteine, phenylalanine, tyrosine, threonine, tryptophan, and valine. Synonym: indispensable amino acid
See also: amino acid

essential amino acid

an AMINO ACID that must be taken in via the diet, as distinct from nonessential amino acids, which can be synthesized by the organism itself, in a process called TRANSAMINATION, using the essential amino acids as a source. In humans there are ten essential amino acids: ARGININE, TRYPTOPHAN, ISOLEUCINE, METHIONINE, THREONINE, LYSINE, LEUCINE, VALINE, HISTIDINE and PHENYLALANINE.
References in periodicals archive ?
The table data presented in Table 2 revealed that the amino acid profiles of the treated seed cakes were similar and comparable to the values reported for different provenances of J.
The acylcarnitine profile (data not shown) was characterized by the absence of acyl and free carnitine, whereas the amino acid profile remained consistent (increased amino acids) with an autopsy blood specimen.
28 KEY: Ca=Calcium; Mg= Magnesium; Na=Sodium; Mn =Manganese; Fe= Iron; Zn=Zinc Cu=Copper M/C/SP= Maize/Cowpea/Sweet Potato; M= Fermented Maize; SD Standard Deviation Table 4: The amino acid profile of co-fermented maize/cowpea/sweet potato and fermented maize (g/100gcp) Amino acid Co-fermented Fermented Maize/ Cowpea/Sweet Maize potato Lysine 1.
This product was nearly identical to WHO F-75 in terms of amino acid profile, proximate composition, caloric value and physicochemical characteristics, such as water activity and color.
The association of these two, therefore, leads to an improved amino acid profile that is much more in line with FAO recommendations.
It also contains all 10 essential amino acids, derived exclusively from plant sources, which are designed to replicate the essential amino acid profile of an egg.
1-3) It has been found that because of its amino acid profile and high bioavailability, whey protein is better suited to sports recovery than other protein sources.
This ingredient is derived from a wax found in China, which has been utilized for centuries by local communities as a nutrition source due to its high protein content and amino acid profile.
The cereals and snacks are low in calories with a complete amino acid profile and contain zero cholesterol.
The amino acid profile further confirms the high quality of its protein in which all essential amino acids except tryptophan were present.
The amino acid profile of dry Tithonia diversifolia leaf meal (TDLM) was determined using described methods [13].
The amino acid profile of the raw and detoxified samples of TSM was determined by ion exchange chromatography using Technicon Sequential Multisample amino acid analyzer (Technicon Instruments Corporation, New York) after sample preparation according to the methods of the Association of Official Analytical Chemists (AOAC) [28].