Evaporation or transpiration (a type of evaporation)
When food is exposed to air, <span>microorganisms </span><span>can land on the food and begin their work of breaking down the food for their own uses. The presence of oxygen enhances the growth of microorganisms, such as molds and yeasts, and contributes directly to </span>deterioration<span> of fats, vitamins, flavors, and colors within foods through the work of enzymes.</span>