Which additive is known for its role in preventing food from drying out?

A humectant is an additive that helps to retain moisture in food products, playing a crucial role in preventing them from drying out. It works by attracting water molecules from the environment and binding them to the food, which helps maintain the desired texture and freshness of products such as baked goods, dried fruits, and certain processed foods. This moisture retention can enhance the sensory qualities of food, including its taste and mouthfeel.

In contrast, preservatives are used primarily to prolong the shelf life of food by inhibiting microbial growth or oxidation, but they do not specifically address moisture content. Antioxidants are additives that prevent the oxidation of fats and oils, thus managing rancidity and color degradation but again not focused on moisture retention. Stabilizers are substances that help maintain uniform dispersion and prevent separation of ingredients, but they do not specifically function to retain moisture in the same way that humectants do.