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 (bē′tə-ēn′, -ĭn)
1. A sweet-tasting crystalline alkaloid, C5H11NO2, found in sugar beets and other plants, used to treat certain metabolic disorders, especially an enzyme defect that causes excessive levels of homocysteine in the blood and urine.
2. Any of several alkaloids with similar structures.

[Latin bēta, beet + -ine.]


(ˈbiːtəˌiːn; -ɪn; bɪˈteɪiːn; -ɪn)
1. (Elements & Compounds) a sweet-tasting alkaloid that occurs in the sugar beet and other plants and in animals. Formula: C5H11NO2
2. (Chemistry) (plural) a group of chemical compounds that resemble betaine and are slightly basic zwitterions
[C19: from New Latin Bēta beet + -ine2]


(ˈbi təˌin, -ɪn; bɪˈteɪ in, -ɪn)

a colorless crystalline alkaloid, C5H11NO2, usu. obtained from sugar beets or synthesized from glycine and used in medicine.
[1875–80; < Latin bēta beet + -ine 2]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.betaine - a sweet tasting alkaloid that occurs in sugar beetsbetaine - a sweet tasting alkaloid that occurs in sugar beets
alkaloid - natural bases containing nitrogen found in plants
References in periodicals archive ?
The biostimulants derived from the seaweed extract Ascophyllum nodosum are constituted by several phytohormones, mainly auxins and cytokinins, presenting different concentrations (DURAND et al., 2003; RAYIRATH et al., 2008), as well as betaines (MACKINNON et al., 2010), organic and inorganic compounds, essential nutrients, carbohydrates and amino acids (RIOUX et al., 2007).
Cationic surfactants are obtained by the reaction of tertiary amines with classical alkylating agents, whereas alkylation processes of betaines and true amphoteric surfactants produce amphoteric surfactants.
Alkyl betaines, and amine oxides are pH sensitive zwitterionics, displaying anionic or nonionic properties above the isoelectric point, and cationic below the isoelectric point.
Sorption of fluorotelomersulfonates, fluorotelomer sulfonamido betaines, and a fluorotelomer sulfonamido amine in national foam aqueous film-forming foam to soil.
Larher, "Osmoregulation in halophytic higher-plants-a comparative-study of soluble carbohydrates, polyols, betaines and free proline," Plant, Cell and Environment, vol.
These products usually have a neutral pH, and include ingredients such as alkyl glyceryl, ether sulfonate, alpha olefin sulfonates, betaines, sulfosuccinates, sodium cocoyl monoglyceride sulfate, and sodium cocoyl isethionate.
All Essence formulations are made without using parabens, formaldehyde donor, MIT/CMIT, sulfates, betaines, silicones, petrolatum, or mineral oil.
These solutes include polyols such as glycerol, mannitol, sugars, or sugar derivatives; betaines and amino acids, including proline, glutamate, and glutamine, as reported by Grant (4), additionally glycerol has since been reported as the major internal osmolyte in four xerophilic fungi by (5, 6).
Accumulation of various compatible solutes (free proline, betaines and sugars) occurs in response to water deficit, which help maintain intercellular osmotic potential without disturbing the metabolic reactions of the plants (Sairam and Saxena, 2000).
They are particularly rich in phytohormones (indoleacetic acids (IAA), commonly known as auxins, gibberellic acids, cytokinins, abscisic acids (ABA), and ethylene), complex organic compounds, vitamins, simple and complex sugars (polysaccharides like alginates, laminaria, and carrageenans), enzymes, N-containing compounds like betaines, proteins, and amino acids and sterols [7].
Schnaare, "Antimicrobial evaluation of N-alkyl betaines and N-alkyl-N, Ndimethylamine oxides with variations in chain length," Antimicrobial Agents and Chemotherapy, vol.