| 释义 |
pyruvic acid
py·ru·vic acid P0691500 (pī-ro͞o′vĭk, pĭ-)n. A colorless organic liquid, C3H4O3, formed as an intermediate in carbohydrate metabolism and fermentation and as an end product in glycolysis.
[pyr(o)- + Latin ūva, grape (from its being produced by the dry distillation of racemic acid, originally derived from grapes) + -ic.]pyruvic acid (paɪˈruːvɪk) n (Elements & Compounds) a colourless pleasant-smelling liquid formed as an intermediate in the metabolism of proteins and carbohydrates, helping to release energy to the body; 2-oxopropanoic acid. Formula: CH3COCOOH[C19: pyruvic from pyro- + Latin ūva grape]py•ru′vic ac′id (paɪˈru vɪk, pɪ-)
n. a water-soluble liquid, C3H4O3, important in many metabolic and fermentative processes, used chiefly in biochemical research. [1830–40; pyr- + Latin ūv(a) grape + -ic] py·ru·vic acid (pī-ro͞o′vĭk) A colorless organic liquid formed by the breakdown of carbohydrates and sugars during cell metabolism. It is the final product of the process known as glycolysis and has the formula C3H4O3.Thesaurus| Noun | 1. | pyruvic acid - a colorless acid formed as an important intermediate in metabolism or fermentationacid - any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt |
Pyruvic Acid
pyruvic acid[pī′rü·vik ′as·əd] (biochemistry) Important intermediate in protein and carbohydrate metabolism; liquid with acetic-acid aroma; melts at 11.8°C; miscible with alcohol, ether, and water; used in biochemical research. Pyruvic Acid (α-ketopropionic acid), CH3COCOOH, a colorless liquid with a pungent odor. Melting point, 13.6°C; boiling point, 165°C. Pyruvic acid is miscible with water, ethanol, and ether in all proportions. Chemically, it behaves like ketones and carboxylic acids. Pyruvic acid occurs in the cells of all organisms as a fundamental intermediate link in the metabolism of carbohydrates, proteins, and lipides. It accumulates in the organism as a result of various metabolic disorders, for example, vitamin-B1 deficiency. Pyruvic acid is a component in the manufacture of the pharmaceutical cinchophen. The term “pyruvate,” which in strict usage refers to the pyruvic-acid anion, CH3COCOO–, is frequently used as a synonym for “pyruvic acid” in biochemical literature. pyruvic acid
pyruvic acid [pi-roo´vik] a compound formed in the body in aerobic metabolism of carbohydrate; also formed by dry distillation of tartaric acid.py·ru·vic ac·id (pī-rū'vik as'id), 2-Oxopropanoic acid; α-ketopropionic acid; acetylformic acid; pyroacemic acid; the simplest α-keto acid; an intermediate compound in the metabolism of carbohydrate; in thiamin deficiency, its oxidation is retarded and it accumulates in the tissues, especially in nervous structures. The enol form, enol pyruvic acid, when phosphorylated, plays an important metabolic role. See: phosphoenolpyruvic acid. pyruvic acid (pī-ro͞o′vĭk, pĭ-)n. A colorless organic liquid, C3H4O3, formed as an intermediate in carbohydrate metabolism and fermentation and as an end product in glycolysis.py·ru·vic ac·id (pī-rū'vik as'id) An intermediate compound in the metabolism of carbohydrate; in thiamin deficiency, its oxidation is retarded and it accumulates in the tissues.
See also: phosphoenolpyruvic acid Fig. 264 Pyruvic acid . Molecular structure. pyruvic acid or pyruvate an important 3-carbon molecule formed from GLUCOSE and GLYCEROL in glycolysis (see Fig. 264 ). See also ACETYLCOENZYME A. Pyruvic acid is broken down further, the precise reactions depending upon whether oxygen is present or not. See AEROBIC RESPIRATION, ANAEROBIC RESPIRATION.pyruvic acid
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