aldehyde


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Related to aldehyde: Aldehyde dehydrogenase

aldehyde

 [al´dĕ-hīd]
an organic compound containing the aldehyde functional group (-CHO); that is, one with a carbonyl group (C=O) located at one end of the carbon chain.

al·de·hyde

(al'dĕ-hīd),
A compound containing the radical -CH=O, reducible to an alcohol (CH2OH) and oxidizable to a carboxylic acid (COOH), for example, acetaldehyde.

aldehyde

An organic compound with a formyl group (R-CHO), which is double-bonded to an O2 (i.e., a carbonyl group, C=O), single-bonded to a hydrogen and single-bonded to another group (e.g., methane, benzene, hydrogen, etc.). The aldehydes in some essential oils contribute to their pleasant odoor, including vanillin, cilantro and cinnamaldehyde.

Example
Acetaldehyde (CH3CHO), butyraldehyde (CH3(CH2)2CHO).

al·de·hyde

(al'dĕ-hīd)
A compound containing the radical -CH=O, reducible to an alcohol (-CH2OH), oxidizable to a carboxylic acid (-COOH); e.g., acetaldehyde.

aldehyde

A product of dehydrogenated (metabolized) alcohol, hence the name. Aldehydes cause most of the toxic effects of bibulous overindulgence (hangover).

al·de·hyde

(al'dĕ-hīd)
A compound containing the radical -CH=O, reducible to an alcohol (-CH2OH), oxidizable to a carboxylic acid (-COOH); e.g., acetaldehyde.
References in periodicals archive ?
Mitochondrial aldehyde dehydrogenase-2 (ALDH2) Glu504Lys polymorphism contributes to the variation in efficacy of sublingual nitroglycerin.
Figure 2 illustrates the alteration of VOC composition among terpenes (green) and aldehydes (red) throughout the experiment.
SatA' (1996) Purification and properties of flavin- and molybdenum-containing aldehyde oxidase from coleoptiles of maize.
Esters and aldehydes could be considered a fault or aromas that are intrinsically valuable to a wine style, depending upon what we are trying to achieve.
Mei, "Overexpression of aldehyde dehydrogenase-2 attenuates neurotoxicity induced by 4-hydroxynonenal in cultured primary hippocampal neurons," Neurotoxicity Research, vol.
(2008), the recombinant enzyme showed oxidative activity toward only TMABaldehyde and no aldehyde produced by the reversible reaction.
(23) The peaks at 6.2-6.6 ppm are attributed to hydrogen in amido groups.(24), (25) The peaks at 9.3-9.5 ppm assigned to hydrogen in aldehyde groups (26), (27)and the relative peak area increase along with the amount of isobutyraldehyde, which coincide with the results of FTIR.
Why is it important for the plant to export some of the 3-carbon aldehyde (glyceraldehyde-3-phosphate) that is produced in the Calvin cycle?
This is attributed primarily to the presence of the enzyme that converts acetaldehyde to acetate (i.e., aldehyde dehydrogenase [ALDH]) in the blood-brain barrier, which may help keep brain acetaldehyde levels low (Petersen 1985; Tampier et al.
Special methods are required to isolate and identify hydroperoxides, which are unstable and readily form the corresponding aldehyde. When glycol ethers (ethoxylated surfactants) are exposed to air, allergenic oxidation products are also formed, although not as quickly as with terpenoids (Karlberg et al.
Five chemicals in raisins--oleanolic acid, oleanolic aldehyde, betulin, betulinic acid, and 5-(hydroxymethyl)-2-furfural--are thought to be responsible for the protection, at least in the laboratory.
Because aldehyde groups are efficiently introduced into the TEMPO-oxidized pulps, the wet tensile strength improvement of the handsheets must be brought about by inter-fiber covalent bond formation.