FOOD TECHNOLOGY

Detailed explanation-1: -Yeast, a tiny single-celled microorganism, a type of fungus, is an example of a biological raising agent. Yeast is used to make bread dough. How do biological raising agents work? Yeast feeds on the sugar contained with the dough, producing carbon dioxide and alcohol, in a process called fermentation.

Detailed explanation-2: -What are chemical raising agents? A common chemical raising agent used in food is baking powder, which contains two active ingredients, bicarbonate of soda (sodium bicarbonate-something called an alkali) and cream of tartar (potassium hydrogen tartrate-something called an acid).

Detailed explanation-3: -Such agents include air, steam, yeast, baking powder, and baking soda.