Founded with a grant from the from the Bill & Melinda Gates Foundation, Apeel Sciences is a California-based startup that's developed a thin "second skin" for fruits and vegetables to preserve them for longer periods. Avocados coated with Apeel will soon hit shelves in Europe. From Technology Review:
The thin coating is made from the pulp, peels, and seeds of other fruit and vegetables. These are turned into powder, which gets mixed with water and then applied to produce by spraying, dipping, or brushing. It's then left to dry. This "second skin" acts like a barrier, slowing down loss of water and exposure to air, the main factors that lead to food spoiling. A lemon that might stay fresh for one month could stay fresh for two or more once it's been treated with Apeel. And because it's just made from fruits and other plants, it's also edible.