包装食品新鲜度指示卡的研究

Research of Packing Food Freshness Indicator-card

食品新鲜度指示卡作为包装的一部分,可直接指示包装食品的质量状况。而大部分食品一旦发生变质,就会代谢出大量的CO2气体,故包装环境中CO2气体含量可作为这一类食品是否腐败变质的重要衡量指标。本实验以玉米淀粉膜为基材,通过添加复合酸碱指示剂、缓冲溶液等主要成分,制得包装食品新鲜度指示卡。

In the experiment through adding some auxiliary materials, included composite acid-bases indicator and buffer solution, into the base material, developed a kind of indicator-cards response directly color changes in the environmental CO2 content.