Germany invents new plastic film

German scientists recently invented a plastic film “stained” with chlorophyll that prevents the rot of light from chlorophyll in green foods to cause food rot, thus greatly prolonging the preservation time of green foods.
According to reports, scientists at the Fraunhofer Institute of Processing and Packaging Technology in Germany “stained” plastic films with chlorophyll in a special way. After such processed films are used to package foods, they can effectively “intercept” food rots. The light thus greatly extends the food shelf life. The new method is not only easy and inexpensive. Most green foods contain large amounts of chlorophyll, and this pigment undergoes photooxidation under light irradiation, decomposing the energy in the food and leading to food rot. In order to extend the shelf life of foods, traditional packaging materials are either made of opaque packaging material or plastic and vacuum-treated to insulate the food from oxygen. The former can't make customers choose intuitively, while the latter is more complicated and the cost is relatively high.