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Author: | R.C. Funt |
Keywords: | Fragaria x ananassa, Rubus species, antioxidant, ellagic acid, cultivars, oxygen radical absorbency capacity |
DOI: | 10.17660/ActaHortic.2003.626.6 |
Abstract:
Strawberries (Fragaria x ananassa Duch) and raspberries (Rubus species) contain many compounds that have been shown to inhibit carcinogenic induced cancer in rats. Ellagic acid (C14H608) is a naturally occurring phenolic compound in strawberries and raspberries. It functions as an antioxidant in the human body. Strawberry and raspberry cultivars grown in Ohio were compared for ellagic acid (EA) in the fruit pulp and seeds and in the leaves in 1997 and 1998. Earliglow and Kent strawberry cultivars had similar levels of ellagic acid, but Jewel’s level was lower than those of Earliglow and Kent. Caroline, a fall red raspberry cultivar had a higher seed EA content than Heritage or Autumn Bliss.
Oxygen Radical Absorbency Capacity (ORAC), another method for measuring antioxidant content, was used to compare red and black raspberries. Black raspberries were higher in ORAC than red raspberries.
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