Effect of 1‐MCP on postharvest quality of French prune during storage at low temperature

摘要

The effect of 1-methylcyclopropene (1-MCP) treatment on postharvest quality of French prune (Prunus domestica L.) during low temperature storage was investigated. French prunes were exposed to 1.2 mu l/L 1-MCP and stored at 1 +/- 1 degrees C under 90 +/- 5% RH. The physiological and biochemical indexes were measured and recorded weekly throughout the experimental period. Our experimental results showed that 1-MCP had a significant effect on maintaining fruit hardness (similar to 20%), titratable acidity (similar to 29%), ascorbic acid (similar to 18%), total soluble solid (similar to 21%), anthocyanin, retarding moisture loss (similar to 44%), and delaying the color changes and harvest ripening (similar to 7 d) as compared to non-1-MCP treated fruit. Furthermore, 1-MCP treatment significantly inhibited malondialdehyde (MDA) production (similar to 33%) and maintained the total phenolic content. Therefore, 1-MCP, an ethylene antagonist, could effectively maintain postharvest quality of prun e during storage at low temperature. Practical applications French prune (Prunus domestica L.) is very popular in the world, because it has the very high nutritional value. However, the harvested French prunes tend to soften rapidly at ambient temperature. Low temperature storage is beneficial to prolong the postharvest life of prunes. Besides, 1-methylcyclopropene (1-MCP) is effective in delaying fruit ripening and extending the postharvest life. The aim of this study is to evaluate the influence of 1-MCP on postharvest quality of French prune during low temperature storage. In general, 1-MCP could effectively maintain postharvest quality of prune during storage at low temperature.