Question

B) Controlling water activity is now universally recognized as essential for ensuring

microbiological safety of foods; it is also important for controlling the rates of
chemical reactions and physical processes know to degrade food quality: controlling
water activity is thus essential for ensuring meta-stability. Describe how awis
defined in terms of and depends upon thermodynamic principles for its ability to
ensure meta-stability. (10 points)

Answer 1

Food, substance consisting essentially of protein, carbohydrate, fat, and other nutrients used in the body of an organism to sustain growth and vital processes and to furnish energy.