Efficacy of ethanolic extract of propolis in maintaining postharvest quality of dragon fruit during storage

Significant (P ≤ 0.05) differences were observed in dragon fruit quality when treated with different concentrations of ethanolic extract of propolis (EEP) (0.25, 0.50, 0.75 and 1.0%) and stored at 20 ± 2 °C and 80 ± 5% relative humidity (RH) for 20 days. Fruit treated with 0.50% EEP showed the most promising results, while fruit treated with 0.75 and 1.0% EEP showed some phytotoxic effects even after 8 days of storage. The results of gas exchange analysis also proved the efficacy of 0.50% EEP concentration. Thus, it can be concluded from the present investigation that EEP at 0.50% concentration could be used to extend the storage life of dragon fruit without any negative effects on the quality.

► Fruits treated with propolis maintained overall quality during storage.
► 0.50% of propolis gave better results and delayed the ripening process.
► Higher concentrations of propolis showed phytotoxic effects on the fruit surface.