Prediction of shelf-life and changes in the quality characteristics of semidried persimmons stored at different temperatures

This study was performed to investigate changes in the quality characteristics and shelf-life of semidried persimmons stored at different temperatures using acceleration experiments. In order to estimate quality changes in the samples, we evaluated the physicochemical properties, microbiological changes, and sensory features of the samples periodically after storage at -20, -10, 0, and 10 °C. At all storage temperatures, CIE L ^* a ^* b ^* values decreased significantly. Based on the results of this study, regression equations are set up. L ^* had the highest correlation and were therefore used to determine quality factor. The activation energy, which was calculated using the Arrhenius equation, was found to be 12.98 kcal/mol, and the Q10-values were 3.81, 2.07, and 2.06 at -20 to -10 °C, -10 to 0 °C, and 0 to 10 °C, respectively. Therefore, the expected expiration dates of the semidried persimmons were estimated to be 203.83, 53.46, 22.00, and 8.71 days at -20, -10, 0, and 10 °C.