Abstract
Alaska wild berries were harvested in 2003 to evaluate levels of antioxidants in non-cultivated fruit. Berries were stored frozen for up to 20 months until analysis for levels of quercetin and hydrophilic oxygen radical absorbance capacity (H-ORACFL). H-ORACFL levels were highest in lingonberry Vaccinium vitis-idaea L.(119-320, average 203 µmol of Trolox Equivalents (TE)/g fresh weight (FW), n = 13). H-ORACFL levels in other berries from interior Alaska averaged 174 µmol TE/g for highbush cranberry Viburnum edule (Michx.) Raf., 107µmol of TE/g for crowberry Empetrum nigrum L., and 77 µmol of TE/g for bog blueberry Vaccinium uliginosum L. Quercetin levels ranged from 0.5 to 14.6 µg/g FW in these 4 species from interior Alaska. Lingonberry and bog blueberry had higher levels of quercetin than most other berries tested. Alaskan wild berries are rich sources of antioxidants.
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