Akademik Veri Yönetim Sistemi
Journal of Tekirdag Agricultural Faculty, cilt.20, sa.1, ss.134-144, 2023 (ESCI, Scopus, TRDizin)
In the present research, the effects of ascorbic acid (AA) treatments on the quality of fresh-cut leek cv. ‘Lincoln’ during cold storage were investigated. Leek samples, harvested at optimum stage, were immediately transferred to the laboratory. Leek samples were pre-cooled with forced air (2 °C) for 6 hours and divided into three groups for treatments (control, 1% and 2% AA). After pre-cooling, dust and residues on leeks originating from the orchard were removed by dipping into cold tap water (5-6 °C) under cool and sterile conditions. After fresh-cut processes, the AA treated (1% and 2%) and control samples were packaged in polystyrene foam tray covered with stretch film (16 µ). Packaged leeks were stored at 0 ± 1 °C and 90 ± 5% relative humidity (RH) for 30 days. The weight loss (%), pseudo stem firmness (N) total soluble solids (%), titratable acidity (g 100 ml‐1), respiration rate (ml CO2 kg‐1 h‐1), pseudo stem colour and sensory evaluation of leeks were performed at six day intervals during storage. The AA treatments decreased weight loss of fresh-cut leeks compared to control. The AA treatments, especially the 2% dose, preserved the pseudo stem firmness better than the control during storage. The AA treatments clearly suppressed respiration rate and maintained the TA of fresh-cut leek during cold storage. The AA treatments preserved the visual quality of the leeks better than the control samples during storage. As a result, it was determined that control group leeks could be stored for 24 days at 0 ± 1 ° C and 90 ± 5% (RH) but this period could be extended up to 30 days by AA (%1-2%) treatments. However, further detailed research on this topic considering different treatment type and dozes is required.