Combined Treatment of Modified Atmosphere Packaging and Salicylic Acid Improves Postharvest Quality of Nectarine (Prunus persica L.) Fruit

The main objective of this study was to assess the effectiveness of individual application and combination effect of salicylic acid treatments (۰, ۰.۵, ۱ mM) in both unpacked and Modified Atmosphere Packaging  (MAP) on changing biochemical compounds and extending postharvest life of nectarine. Fruits were stored at ۰°C with ۹۰% RH for ۴۰ days. Experimental fruits were analyzed for weight loss, soluble solids, titratable acidity, fruit firmness, total phenolic compounds, flavonoids, antioxidant capacity and overall quality during the storage period at ۱۰ day intervals. The results showed that total phenolic, flavonoid concentrations and antioxidant activity fluctuated progressively until the ۳۰ days of storage, and then decreased until the end of the experiment in all applied treatments. Salicylic acid treatment especially at ۱ mM salicylic acid concentration with  MAP had a positive effect on biochemical compounds. Furthermore, the combined treatment of MAP had a clear advantage over the other treatments in reducing weight loss, retarding softening, increasing shelf life, and maintaining higher overall fruit quality. The results indicated that salicylic acid with MAP can be used as a safe alternative chemical to keep the quality and for storage of nectarine.

کلیدواژه ها:

Biochemical compounds ، Postharvest ، Prunus persica ، Quality ، Salicylic acid