Postharvest Materials that Maintain Quality and Prevent Disorders - Cooperative Extension: Tree Fruits - University of Maine Cooperative Extension

Diphenylamine (DPA) is an antioxidant that prevents superficial scald and can increase fruit tolerance to high carbon dioxide concentration that normally occurs in controlled atmosphere storage. Most varieties of apple treated with SmartFresh® do not require DPA for superficial scald prevention, but will have greater sensitivity to carbon dioxide in controlled atmosphere storage. After harvest,