TERMIUM Plus®

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QUERCETIN [5 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-01-04

English

Subject field(s)
  • Chemical Elements and Compounds
  • Biochemistry
  • Dyes and Pigments (Industries)
  • Dietetics
Universal entry(ies)
C15H5O2(OH)5
formula, see observation
C15H10O7
formula, see observation
117-39-5
CAS number
DEF

A yellow crystalline flavonol pigment that occurs usually in the form of glycosides (as quercitrin and rutin) in various plants and in the form of the dihydro derivative in Douglas fir, and that is used as an antioxidant, an absorber of ultraviolet rays, in rubber, plastics and vegetable oils.

CONT

Quercetin is a polyphenolic bioflavonoid or flavonoid, more specifically classified as a flavonol.... Bioflavonoids are... commonly found in plants that are used as medicinal herbs like Hypericum perforatum(St. Johns Wort) and Sambucus nigra L(Elder flower). Quercetin is highly abundant in food and beverage sources that are part of the human diet such as broccoli, lettuce, apples, tomatoes, onions, wine, tea, and coffee.

OBS

H-: The "H-" must be italicized.

OBS

yellow flavin: commercial name.

OBS

Chemical formula: C15H5O2 or C15H10O7

French

Domaine(s)
  • Éléments et composés chimiques
  • Biochimie
  • Teintures et pigments (Industries)
  • Diététique
Entrée(s) universelle(s)
C15H5O2(OH)5
formula, see observation
C15H10O7
formula, see observation
117-39-5
CAS number
CONT

[La] quercétine [est un] flavonol [...] qui se rencontre sous forme d'hétéroside dans le houblon, le marronnier, le quercitron, le thé, etc., et qui est utilisé comme colorant jaune de la laine et de la soie.

CONT

La quercétine est un flavonoïde de type flavonol. [...] de nombreuses plantes médicinales doivent leur efficacité à leur fort taux en quercétine.

OBS

Ne pas confondre «quercétol» avec «quercitol».

OBS

H- : La lettre «H-» s'écrit en italique.

OBS

Formule chimique : C15H10O7 ou C15H5O2(OH)5

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Bioquímica
  • Tinturas y pigmentos (Industrias)
  • Dietética
Entrada(s) universal(es)
C15H5O2(OH)5
formula, see observation
C15H10O7
formula, see observation
117-39-5
CAS number
OBS

Fórmula química: C15H5O2 or C15H10O7

Save record 1

Record 2 2011-10-19

English

Subject field(s)
  • Food Additives
  • Pharmacy
  • Biochemistry
  • Botany
DEF

[A] flavoring extract prepared from the heartwood of Acacia Catechu ... used in bitters, fruit and drum flavorings.

CONT

Catechu Black... ;pegu catechu; cashoo. Extract prepd from heartwood of Acacia catechu wild.... Constit. 25-35% catechutannic acid, 2-10% catechin; catechu red, quercetin, gum... Use : Tanning, dyeing fabrics brown and black... ;in toilet preparations.

French

Domaine(s)
  • Additifs alimentaires
  • Pharmacie
  • Biochimie
  • Botanique
DEF

Extrait astringent de la noix de bétel (fruit d'Acacia catechu).

OBS

Le constituant principal du cachou officinal ou cachou de Pegu est le tanin, accompagné de catéchine et d'acide cachoutannique. Il sert à préparer la teinture de cachou. [...] Il entre dans la composition de dentifrices et de pastilles ou tablettes destinées à corriger la fétidité de l'haleine.

Key term(s)
  • cachou officinal

Spanish

Campo(s) temático(s)
  • Aditivos alimentarios
  • Farmacia
  • Bioquímica
  • Botánica
Save record 2

Record 3 2011-01-25

English

Subject field(s)
  • Chemical Elements and Compounds
  • Plant Biology
  • Biochemistry
Universal entry(ies)
C21H20O11
formula, see observation
CONT

The drug St. John's wort consists of the dried above-ground part of "Hypericum perforatum L", collected shortly before or during the flowering period. It contains not less than 0. 04% naphthodianthrones of the hypericin group(so-called total hypericin).... Other possible active ingredients are polymerization products of hypericin, the flavonoids quercetin, hyperoside, quercitrin, isoquercitrin, rutin, campherol, luteolin, and 13-118-biapigenin, the total concentration of which can amount to 2% to 4%.

CONT

... we have compared the bioactivities of the two most abundant flavonoid glycosides that we have purified from onions(quercetin-3, 4’-diglucoside and quercetin-4’-glucoside) to the quercetin aglycone, and also to the more commonly studied commercially-available flavonoid glycosides, rutin(quercetin-3-rutinoside) and isoquercitrin(quercetin-3-glucoside).

OBS

Chemical formula: C21H20O11

French

Domaine(s)
  • Éléments et composés chimiques
  • Biologie végétale
  • Biochimie
Entrée(s) universelle(s)
C21H20O11
formula, see observation
OBS

[Glucoside] présent dans les feuilles de myrtille Vaccinium Myrtillus [...]

OBS

Formule chimique : C21H20O11

Spanish

Save record 3

Record 4 2003-12-03

English

Subject field(s)
  • Dyes and Pigments (Industries)
  • Chemistry
  • Food Additives
DEF

Any of several water-soluble yellow pigments occurring as coenzymes of flavoproteins.

CONT

Flavin ... any of a class of ... nitrogenous pigments derived from isoalloxazine ...

OBS

Among the best known flavins are acriflavine and riboflavine.

OBS

Not to be confused with flavine.

OBS

Not to be confused with quercetin, which is sometimes called "flavin".

French

Domaine(s)
  • Teintures et pigments (Industries)
  • Chimie
  • Additifs alimentaires
DEF

Nom générique de pigments fluorescents jaunes, très répandus dans la nature, hydrosolubles, dont les mieux connus sont la riboflavine et la lyxoflavine.

CONT

Flavines ou lyochromes. Ces pigments jaunes sont très largement répandus chez les animaux, les végétaux, les Bactéries [...] La d-riboflavine est identique à la vitamine B2.

Spanish

Campo(s) temático(s)
  • Tinturas y pigmentos (Industrias)
  • Química
  • Aditivos alimentarios
DEF

Pigmento amarillo derivado de la 2-fenil-4-cromona presente en las partes aéreas no leñosas de los vegetales.

Save record 4

Record 5 2003-10-09

English

Subject field(s)
  • Plant and Crop Production
  • Biochemistry
DEF

a yellow crystalline flavonol glycoside... that is found in rue leaves, tobacco leaves, buckwheat, flower buds of the Japanese Pagoda tree, and other plants, that yields quercetin and rutinose on hydrolysis...

French

Domaine(s)
  • Cultures (Agriculture)
  • Biochimie
DEF

Flavonal présentant une activité vitaminique P comme de nombreux composés voisins (flavonoïdes). La rutine est particulièrement abondante dans les "rutacées" (agrumes).

Spanish

Campo(s) temático(s)
  • Producción vegetal
  • Bioquímica
Save record 5

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