Effect of Basil and Balangu seeds gum on sensorial properties, quality and shelf life of peaches

Due to environmental problems caused by the use of artificial films, researchers have begun to produce natural edible coatings for the preservation of food, including fruits and vegetables, and one of the sources of their preparation is plant gum. This research was carried out to investigate the effects of Balangu and Basil seeds gum coating on storage life and some quantitative and qualitative properties of peach during cold storage. For this purpose a factorial experiment in a completely randomized design with three replications was conducted separately for fruit. Each experiment consisted two factors including treatments and storage time. Treatments were applied with dipping of fruits for 5 minutes in prepared solution at 25˚C. After drying, the fruits were packed in plastic containers and stored in cold storage at 5˚C and 90% RH. Second factor was storage time with 4 levels including 1 (beginning of storage), 10, 20 and 30 days after storage. In each of the mentioned dates the fruits were removed from storage and the following quantitative and qualitative parameters were evaluated: soluble solids, titratable acidity, ethylene production, respiration rate, total phenols and sensorial evaluation. The results showed that application of Balangu and Basil seeds gums had a significant effect on reducing respiration rate of peach. The effect of storage time on all evaluated traits in peaches were significant. At the end of storage, the soluble solids and phenols in fruit were increased, and titratable acidity decreased. According to the results, the use of 0.1% Balangu and Basil seeds gums is recommendable as a natural edible coating to preserving quality and extending storage life of peaches.