RESUMO
The effects of pre-harvest aminoethoxyvinylglycine treatments on fruit quality parameters and bioactive compounds of 'Fortune' plum during cold storage were investigated. Two different aminoethoxyvinylglycine doses were applied to plum trees two weeks prior to the estimated harvest date, and harvested fruit samples were kept in cold storage at 0 (°)C temperature and with 90 ± 5% relative humidity for 4 weeks. Lightness (L*) and hue angle values decreased in all treatments during cold storage. Weight loss (%) was significantly decreased (p < 0.05) with 100 mg/L aminoethoxyvinylglycine treatment at the end of the storage. Fruit firmness at the end of the storage was significantly increased with aminoethoxyvinylglycine treatments. Total phenolics and total antioxidant activity were increased with aminoethoxyvinylglycine treatments till the 21st day of storage and decreased by the 28th day. Total phenolics and total antioxidant activity were significantly decreased (p < 0.05) with the 200 mg/L aminoethoxyvinylglycine treatment at the end of storage. Rutin was significantly decreased with 100 mg/L aminoethoxyvinylglycine treatment at the end of cold storage.
