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United States Department of Agriculture

Agricultural Research Service

Phenolics:Table 8

Survey of Phenolic Compounds Produced in Citrus

Table 8
Flavonoids in leaves from several grapefruit cultivars

[Abbreviations: NRT, narirutin; NRG, naringin; NHP, neohesperidin]


Cultivar Ploidy Flavonoids
NRT NRG NHP
(mg/g)

Narinigin-dominant types

Seedy Marsh 2N 0.68 2.38 3.14
Seedy Marsh 4N 0.73 3.45 2.71
Hall 2N 0.67 2.09 2.93
Hall 4N 0.60 3.96 3.15


Neohesperin-dominant types

Imperial 2N 0.71 0.95 1.66
Imperial 4N 0.59 1.36 6.51
Royal 2N 0.91 1.12 2.43
Royal 4N 0.79 1.10 3.33


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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: 2/6/2002