Akademik Veri Yönetim Sistemi
Acta Horticulturae, cilt.1194, ss.785-791, 2018 (Scopus)
Effects of pre- and postharvest spermidine treatments on storage life and quality of ‘Aprikoz’ apricot were investigated. For preharvest treatment, 0.1 mM spermidine and Tween-20 (0.01%) (as a surfactant) were sprayed on apricot trees as well as distilled water with Tween-20 (preharvest control group) 10 days before commercial harvest. ‘Aprikoz’ apricots were harvested at commercial harvest maturity from an orchard in Isparta (Turkey) and transported to the laboratory immediately. Fruits were pre-cooled (the internal temperature of fruits reduced to 2-3°C, within 6 h) by using forced air cooling at 1°C temperature. After pre-cooling, fruits were divided into two groups for postharvest application. First groups were dipped in an aqueous solution containing 0.1 mM spermidine and Tween-20 for 10 min. Second group was immersed in distilled water and Tween-20 for 10 min (postharvest control group). After postharvest treatments fruits were drained and dried with blotting paper. Then pre- or postharvest treated and non-treated fruits placed in modified atmosphere package (MAP) and stored at 0°C and 90±5% relative humidity conditions for 40 days. The weight loss, soluble solids contents (SSC), titratable acidity (TA), fruit firmness, fruit skin color, respiration rate, ethylene production and gas composition in package and sensory evaluation (external appearance, taste and internal browning) were determined initially and at 10-day intervals. Weight loss of all treated and non-treated fruits increased over storage time. Postharvest treated fruits had the lowest weight loss compared to the other treatments. Control groups displayed the highest firmness loss and internal browning at the end of the storage period. According to the results of sensorial evaluation, apricot fruits treated with 0.1 mM dose of spermidine could be stored for 30 days with good quality in MAP conditions.