A baking soda, which is used to help baked goods rise during baking is an example of a direct additive. One of the four major purposes of direct additives is to aid in the processing and preparation of food, where baking soda belongs. These leavening is used to preserve the desirable condition of foods.
Procedural due process - The rules. People in charge have to follow them. There are procedures for managing situations when a person is accused of misconduct. Example: A student is accused of cheating. Procedural due process is what they do to prove that, and how they decide to punish him.
Substantive due process - The rules don't apply, or they're ridiculous. Standard procedures for managing situations don't always work. Example: A student is accused of cheating. Substantive due process addresses whether the rules are valid, make sense, and work.
