The ripening of fleshy fruits such as apple, pears and tomatoes results in a coordinated change in texture, nutritional characteristics, color, flavor and aroma, and initiates senescence processes that reduce shelf life. Fresh market apples are often treated with 1-methylcyclopropene and stored under controlled atmosphere conditions to delay ripening and extend the supply period to consumers. However, there is always some degree of economic loss due to external injury and flesh browning of the fruit.