Abstract:
To investigate the effects of spontaneous controlled atmosphere packaging (MAP) with 1-methylcyclopropene (1-MCP) combined with different thicknesses (0.02 mm, 0.04 mm) of fresh-keeping bags on the browning and cold storage quality of Venus Golden apple fruits, two storage methods, 1-MCP (1.0 μL/L)+MAP and MAP, were used to treat Venus Golden apples, which were then stored at (0±0.5) ℃ for 60 days and 160 days. The results showed that 0.02 PE, 1-MCP+0.02 PE, and 1-MCP+0.04 PE treatments could all slow down the speed of peel yellowing and greasiness to a certain extent, effectively inhibit peel and flesh browning, and suppress the decrease of fruit firmness, titratable acid, respiration rate, ethylene release rate, and puncture parameters (including breaking force, yield force, flesh firmness, and flesh work). Compared with the CK group, the 0.04 PE treatment group made Venus Golden apples more prone to browning and accelerated fruit senescence. It can be seen that 0.02 PE, 1-MCP+0.02 PE, and 1-MCP+0.04 PE treatments can all maintain the cold storage quality of Venus Golden apples, reduce the fruit browning index, and improve the fruit taste and flavor, among which the 1-MCP+0.02 PE treatment has the best fresh-keeping effect on Venus Golden apples, extending the fruit storage period to more than 160 days.