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United States Department of Agriculture

Agricultural Research Service

Phenolics:Table 7

Survey of Phenolic Compounds Produced in Citrus

Table 7
Flavonoid contents of the juice from diploid and tetraploid grapefruit cultivars

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


Cultivar Ploidy   Brix Acid Acid/
Brix
  Flavonoids
NRT NRG NHP
(%) (mg/mL) (mg/mL)

Naringin-dominant types
Seedy Marsh 2N   12.5 18.4 6.8 0.07 0.11
Seedy Marsh 4N 11.8 21.6 5.4 0.08 0.15
Hall 2N 11.1 17.0 6.5 0.10 0.24
Hall 4N 11.6 20.5 5.6 0.16 0.43

Neohesperdin-dominant types
Imperial 2N 12.9 16.0 8.0 0.10 0.13 0.03
Imperial 4N 12.6 26.1 4.8 0.19 0.35 0.07
Royal 2N 13.1 17.3 7.6 0.05 0.08 0.03
Royal 4N 12.8 19.4 6.6 0.07 0.15 0.05

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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
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