Economic Botany Section
Choski, K. , Riedl, K. , Ozgen, M. , Schreens, J. C. , Schwartz, S. J. , Black, B. , Reese, R. N. .
Nutritional and antioxidant content of buffaloberry in comparison to autumnberry.
Buffaloberry [Shepherdia argentea (Pursh) Nutt.] and Autumnberry (Elaeagnus umbellata Thunb.) are members of the Oleaster family, Elaeagnaceae. Both are deciduous shrubs to small trees that produce edible berries containing carotenoid and phenolic antioxidants that have been traditionally utilized by humans. To characterize the potential food value and marketable phytochemical content we examined fruit of seven buffaloberry collections from the central Great Plains and that of seven autumnberry genotypes harvested from USDA plantings in Beltsville, MD. Fruit quality was evaluated by measurement of soluble solids and titratable acids, and dietary mineral content was determined by ICP. Total phenolics and water-soluble antioxidant potential (ABTS, DPPH and FRAP) were determined spectrophotometrically. Carotenoid content was measured after ethanol-acetone-hexane extraction and purification as lycopene equivalents based upon published extinction coefficients. Major carotenoid components were identified by mass spectrometry. Fruit quality of the buffaloberry was consistently better that autumnberry with about 22% soluble solids and 2% titratable acids compared to 13% and 0.85 %, respectively, for autumnberry. Both fruits provide a significant source of dietary minerals. Autumnberry contained 2-fold more total phenolics and greater water-soluble antioxidant capacity than buffaloberry. All of the fruit contained lycopene as a major carotenoid, with autumnberry carotenoids being >70% lycopene and buffalo berry containing slightly <50% lycopene. Buffaloberry also contained about 50% methyl apo 6’ lycopenoate.
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1 - South Dakota State University, Brookings, SD 57007, Biology and Microbiology,, Brookings, SD, 57007
2 - The Ohio State University, . Dept. Food Science and Technology,, Columbus, OH, 43210
3 - GOP Univiversity, , Horticulture Department,, Tasliciftlik,, Tokat, 60240, TURKEY
4 - The Ohio State University, Dept. Horticulture and Crop Science, O.A.R.D.C., Wooster, OH, 44691
5 - The Ohio State University, Dept. Food Science and Technology, Columbus, OH, 43210,
6 - Utah State University, Dept. Plants, Soils and Biometeorology,, Logan, UT, 84322
7 - South Dakota State University, Biology and Microbiology,, Brookings, SD, 57007
Presentation Type: Poster:Posters for Sections
Location: Ball Room & Party Room/SUB
Date: Monday, July 28th, 2008
Time: 12:30 PM