ISHS Acta Horticulturae 574: VII International Symposium on Vaccinium Culture
VARIATION IN PHYTOCHEMICAL COMPOSITION OF BLUEBERRY CULTIVARS AND BREEDING SELECTIONS |
| Authors: | J.R. Clark, L. Howard, S. Talcott |
| Keywords: | Vaccinium corymbosum, Vaccinium ashei, southern highbush, ORAC values |
| Abstract:
Twenty four Vaccinium genotypes were analyzed during two growing seasons for antioxidant capacity by measuring oxygen radical absorbance capacity (ORAC), in addition to total phenolics and total anthocyanins. Four of these genotypes were sampled both years. ORAC values varied from 14.4 to 76.3 μmol Trolox equivalents/g among genotypes. ‘Ozarkblue’ had the highest average ORAC value among cultivars. The cultivar Bluecrop varied the greatest across years for ORAC value. The highest ORAC values were found for the U.S. Dept. of Agriculture (USDA) selections US 497 and US 729, with 72.8 and 76.3 μmol TE/g, respectively. Correlations of ORAC and total anthocyanin and total phenolics were not consistent among years. | |
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