保鲜剂处理对冬枣冰温贮藏中品质的影响
The Influence of antistaling agent treatment on Winter-jujube during ice-temperature storage
-
摘要: 用800mg/kg的纳他霉素和3%的氯化钙溶液对白熟期的冬枣进行处理,探讨了不同保鲜剂处理对冬枣冰温贮藏期间生理生化指标的影响。实验结果表明,与单独冰温贮藏相比,采用纳他霉素与氯化钙进行前处理可明显提高冬枣贮藏期的好果率,延缓果实硬度下降,减少VC的损失,并保持较高的过氧化物酶(POD)和超氧化物歧化酶(SOD)活性。在贮藏的第90d时,采用纳他霉素与氯化钙进行前处理的冬枣的硬度分别为21.59、18.73kg/cm2,而单独冰温贮藏的硬度为16.72kg/cm2,差异达显著水平(p<0.05)。这说明冬枣保鲜中,当将保鲜剂处理与冰温贮藏相结合时,更有利于冬枣品质的保持。Abstract: With the goal of evaluating the effect of antistaling agent treatment on Winter-jujube storability, it was conducted with 800mg/kg natamycin and 3% calcium chloride before storage. The results indicated as follows:compared only with ice-temperature storage, the Winter-jujube which was conducted with natamycin and calcium chloride before test could be prevented from aging and worse, the descent speed of hardness and VC could be cut down, the activity of POD and SOD could be kept from reducing. On the 90th day of storage, the hardness of Winter-jujube which was treated with natamycin and calcium chloride before experiment was 21. 59、 18. 73kg/cm2, but the hardness of Winter-jujube which was kept in ice-temperature only was 16. 72kg/cm2, and the difference was significant (p<0. 05) . It could be known from the results that when Winter-jujube was conducted with antistaling agent and ice-temperature storage, it could be delayed from aging and the result of storage would be better.