功能集成包装在常温下无花果保鲜中的应用

Application of function integrated fresh-keeping package on preservation of figs at room temperature

为了延长无花果在常温(25℃)条件下的货架期,设计了集成高透氧膜和高透湿膜的气调包装和集成高透氧膜、高透湿膜以及1-MCP释放膜的气调包装。通过对比贮藏期间2种气调包装和裸放条件下无花果品质的变化,来评价气调包装的保鲜效果。2种气调包装中分别形成了13%O_2、4%CO2和16%O_2、3%CO_2的顶空环境,减少了无花果在常温贮藏期间的质量损失率、硬度降低和营养物质的损失,并且维持较高的感官分值。2种包装分别将常温下无花果的货架期从2 d延长到4d和5 d。2种多功能集成包装都能有效保持无花果的贮藏品质,其中集成1-MCP释放膜的气调包装对无花果的品质保持效果最好。

In order to prolong the shelf life of figs at room temperature(25 ℃), it had designed a modified atmosphere package with integrated high oxygen permeability film and high moisture permeability film, and modified atmosphere packaging with integrated high oxygen permeability film, high moisture permeability film and 1-MCP release film. The preservation effect of the modified atmosphere packaging was evaluated by comparing the changes in the quality of the figs in the two modified atmosphere packages and under the bare conditions during storage. The headspace environment of 13% O2, 4%CO2 and 16% O2, 3% CO2 were formed in the two modified atmosphere packages, respectively. The mass loss rate, firmnesss reduction and nutrient loss of the figs during storage at room temperature are reduced, and a high sensory score is maintained. The two packages extended the shelf life of figs at room temperature from 2 days to 4 days and 5 days, respectively. Both packages are effective to maintain the quality of the figs, and the modified atmosphere packaging with integrated 1-MCP release film has the best effect on maintaining the quality of figs.