essential amino acid


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essential amino acid

[i′sen·chəl ə′mē·nō ‚as·əd]
(biochemistry)
Any of eight of the 20 naturally occurring amino acids that are indispensable for optimum animal growth but cannot be formed in the body and must be supplied in the diet.
References in periodicals archive ?
Determination of essential amino acid requirements by using plasma free amino acid concentrations in rainbow trout, Oncorhynchus mykiss.
These essential amino acids must therefore be obtained from the diet.
The x coordinate of an intersection for each straight line, resulting from the daily intake of the limiting amino acid and the retention rates for body nitrogen based on MBW of every two deficient groups with the same limiting amino acid but at different levels, with a horizontal line, from the datum of the control group, was shown in Table 6 representing the daily requirement for the corresponding essential amino acid based on MBW for growth plus maintenance.
Plasma levels of total protein, essential amino acids and minerals in rats on different diets were almost identical.
In Buchnera, the amazing thing is that they keep all the pathways for the essential amino acids and lose all the nonessential amino acids that there is no shortage of [in the host]," says Moran.
Plasma free amino acid concentrations may be useful in determining the optimum blood sampling time and also in evaluating protein quality and essential amino acid requirements.
Unilactamin L-17 contains all the essential amino acids in concentrated form obtained from a fraction of whey protein-enriched lactoprotein hydrolysate.
The method is based on comparison of the concentration of the first limiting essential amino acid in the test protein with the concentration of that amino acid in a reference (scoring) pattern.
1) The researchers concluded, "whey ingestion improves skeletal muscle protein accrual through mechanisms that are beyond those attributed to its essential amino acid content.