Page Banner

United States Department of Agriculture

Agricultural Research Service

Survey of Phenolic Compounds Produced in Citrus

Figure 4. Structure of flavanone, flavone, and flavonol compounds examined in this survey

Phenolics, fig. 4

Common name Structural name Ring substitution
pattern
R1 R2

Flavanone aglycones:
Naringenin 5,7,3'–trihydroxyflavanone OH H
Isosakuranetin 5,7–dihydroxy–3'–methoxyflavanone O–Me H
Eriodictyol 5,7,3',4'–tetrahydroxyflavanone OH OH
Hesperetin 5,7,4'–trihydroxy–3'–methoxyflavanone O–Me OH
3–Hydroxyflavanone aglycone:
Dihydrokaempferol 3,5,7,4'–tetrahydroxyflavanone OH H
Flavone aglycones:
Apiginin 5,7,4'–trihydroxyflavone OH H
Fortuneletin 5,7–dihydroxy–3'–methoxyflavone O–Me H
Luteolin 5,7,3',4'–tetrahydroxyflavone OH OH
Diosmetin 5,7,4'–trihydroxy–3'–methoxyflavone O–Me OH
Flavonol aglycones:
Kaempferol 3,5,7,3'–tetrahydroxyflavone OH H
Kampferide 3,5,7–trihydroxy–3'–methoxyflavone O–Me H
Quercetin 3,5,7,3',4'–pentahydroxyflavone OH OH
Chrysoeriol 3,5,7,4'–tetrahydroxy–3'–methoxyflavone O–Me OH
Isorhamnetin 3,5,7,3'–tetrahydroxy–4'–methoxyflavone OH O–Me
Diglycoside groups:
Rutinoside 6–O–alpha–l–rhamnosyl–beta–D–glucoside
Neohesperidoside2–O–alpha–l–rhamnosyl–beta–D–glucoside

United States Department of Agriculture
Agricultural Research Service

The material on this page is in the public domain.

Original posting: April 1, 1999.


Last Modified: 8/13/2016
Footer Content Back to Top of Page