aspartic acid


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aspartic acid

(əspär`tĭk), organic compound, one of the 20 amino acidsamino acid
, any one of a class of simple organic compounds containing carbon, hydrogen, oxygen, nitrogen, and in certain cases sulfur. These compounds are the building blocks of proteins.
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 commonly found in animal proteins. Only the l-stereoisomer participates in the biosynthesis of proteins. Its acidic side chain adds a negative charge and hence a greater degree of water-solubility to proteins in neutral solution and has been shown to be near the active sites of some enzymes (see pepsinpepsin,
enzyme produced in the mucosal lining of the stomach that acts to degrade protein. Pepsin is one of three principal protein-degrading, or proteolytic, enzymes in the digestive system, the other two being chymotrypsin and trypsin.
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). Aspartic acid is not essential to the human diet. It was discovered in protein in 1868.

aspartic acid

[ə′spärd·ik ′as·əd]
(biochemistry)
C4H7NO4 A nonessential, crystalline dicarboxylic amino acid found in plants and animals, especially in molasses from young sugarcane and sugarbeet.
References in periodicals archive ?
Although continuing to dominate demand in the food and beverage additive market, the artificial sweetener ingredients phenylalanine and aspartic acid and the flavor enhancer glutamic acid will provide moderate growth opportunities at best due to maturing markets and persisting health controversies.
Per the News Release of November 3rd, successful commercial production has begun at the sugar to aspartic acid plant in Taber, Alberta.
Aspartame also breaks down into aspartic acid, which excites neurons, and methanol, a known toxin.
On the other hand, the major nonessential amino acids were glutamic acid, and aspartic acid in U.
1 integrin as a functional cell receptor and include aspartic acid and isoleucine essential for cell attachment and detachment activity.
Lau hypothesizes that ingestion of the well-established neurotoxicants aspartic acid and L-glutamic acid as additives could lead to a high enough body burden to kill neurons by a mechanism called excitotoxicity.
Formerly unidentified isovaleryl conjugates of the following amino acids were detected and identified in the urine of IVA patients: [alpha]-aminobutyric acid, aspartic acid, serine, phenylalanine, threonine, valine, leucine, and tyrosine by GC-MS; and N-isovalerylasparagine,-histidine,-lysine, and-tryptophan by ESI-MS-MS.
Aspartame consists of three components--phenylalanine and aspartic acid (both amino acids) and a methyl ester, which becomes free methyl alcohol when it enters the stomach.
Aspartic acid carries both potassium and magnesium into the cells quickly and efficiently.
Clarke of the University of California, Los Angeles and his colleagues created mice lacking an enzyme that counters the natural degradation of two protein components--asparagine and aspartic acid (SN: 6/14/97, p.
Today FSI is pleased to announce that the Taber Alberta, aspartic acid from sugar plant has reached commercial operating status.
CYSTEINE/CYSTINE MARKET CYSTEINE/CYSTINE CAPACITY AND MANUFACTURERS CYSTEINE PRICING CYSTEINE/CYSTINE APPLICATION PATENTS Chapter- 13: ASPARTIC ACID 3 ASPARTIC ACID APPLICATIONS AND CONSUMPTION PATTERNS ASPARTIC ACID PRODUCTION TECHNOLOGY U.