STORAGE RETENTION OF STILBENE, ELLAGIC ACID, FLAVONOL, AND PHENOLIC CONTENT OF MUSCADINE GRAPE (VITIS ROTUNDIFOLIA MICHX.) CULTIVARS

摘要: A B S T R C The presence of ellagic acid and other nutraceutical compounds in muscadine grapes add value enhance the marketability this southern U.S. specialty crop. Due to its profile, muscadines may potentially become next “super fruit”. objective study was determine retention important phytochemical including anthocyanins, phenolics, flavonols, stilbenes organic acids from whole grape berries individual fruit parts following cold storage. Stilbene, acid, flavonol, phenolic were analyzed 11 cultivars 14 days storage at 4 ° C. major identified by their times characteristic spectra. Quantification made utilizing calibration curves external standards for each trans- cis-resveratrol, transand cis-piceid, myricetin, quercetin kaempferol. Total phenolics decreased 6 but increased 5 cultivars, suggesting differences decay development deterioration. Anthocyanin content showed an overall decrease all except ‘Eudora’. Stilbenes across flavonol cultivar compound specific. Free ‘Pollyanna’, total or remained constant cultivars.