A group of students from the Ho Chi Minh City University of Technology have successfully created edible food wrap from shrimp shells, crab shells, and guava leaves after two years of research. The group collected shrimp and crab shells from seafood processing companies and guava leaves from guava gardens to develop their food wrap. Extract from guava leaves is also antibacterial,” she said. "As a result, the food wrap is antibacterial, has good oxidation resistance, and uses materials that are safe for people. It took the students from the Ho Chi Minh City University of Technology about two years to create the edible food wrap.