Researchers at Nanyang Technological University in Singapore have unveiled an innovative biodegradable food film. It is made from recycled avocado seeds, starch, durian and jackfruit seeds. This packaging has the unique ability to change color when food spoils. It contains antibacterial components such as catechin and chlorogenic acid, which prevent the growth of harmful bacteria, including Staphylococcus aureus. At the same time, the novelty reacts to changes in the acidity of foods. When food begins to spoil, the film changes color from translucent yellow to dark brown, thanks to the substance perseorangin contained in avocado seeds. During experiments with shrimp, it was found that the new packaging warns of spoilage 2 days before the appearance of unpleasant odor. The developers are confident that this development will help reduce the risk of food poisoning and reduce food waste.