Baking Chemistry

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Baking chemistry is the study of the chemical reactions that occur during the baking process, and how they affect the texture, flavor, and appearance of bakery products. In baking, a variety of chemical reactions take place, including reactions between ingredients, reactions between ingredients and heat, and reactions between ingredients and other factors such as enzymes and bacteria.

Here are a few examples of chemical reactions that occur in baking :
  • Formation of gluten: When wheat flour is mixed with water, the proteins in the flour, including glutenin and gliadin, form long, elastic strands of gluten. This gluten network gives bread its structure and elasticity, and allows it to rise and hold its shape during baking.
  • Production of carbon dioxide: During bread making, yeast ferments the sugars in the dough, producing alcohol and carbon dioxide gas. The carbon dioxide gas is trapped in the dough by the gluten network, causing the dough to rise and expand.
  • Maillard reaction: This is a chemical reaction between amino acids and sugars that occurs during baking, and is responsible for the brown color and flavor of baked goods. The Maillard reaction takes place at high temperatures, and involves the breaking down and reformation of the molecules involved, producing new compounds with characteristic flavors and aromas.
  • Oxidation of fats: During baking, the heat can cause the fatty acids in fats, such as butter or shortening, to break down and form free radicals. These free radicals can then react with oxygen in the air to form new compounds, such as aldehydes and ketones, which can affect the flavor and aroma of the baked product.
  • Hydrolysis of carbohydrates: During baking, the heat can cause the carbohydrates in flour, such as starch, to break down into smaller molecules through the process of hydrolysis. This can affect the texture of the baked product, and can also produce sugars that can be fermented by yeast or used by bacteria in the production of flavor compounds.
Bakery chemists may study the role of gluten in bread making, and how the formation and structure of gluten affects the texture and rise of the bread. They may also study the effects of different sugars on the flavor and color of bakery products, or the functional properties of fats and emulsifiers, such as their ability to improve the texture or shelf life of baked goods.

Bakery chemists also develop and improve baking processes and techniques, in order to improve the quality and efficiency of bakery production. For example, they may use scientific and engineering principles to design and optimize baking equipment, or to develop new methods for controlling the fermentation and baking process.



Overall, bakery chemistry plays a crucial role in the development and production of high-quality bakery products, by providing a better understanding of the chemical reactions and ingredient properties involved in baking.

References;

  • Lim S., Chemistry is a Piece of Cake—The Science of Baking, https://ftloscience.com/chemistry-cake-baking-science/
  • Figoni P., How Baking Works: Exploring the Fundamentals of Baking Science
  • Gluten: How Does It Work? https://modernistcuisine.com/mc/gluten-how-does-it-work/
  • Baking Bread: The Chemistry of Bread-Making , https://www.compoundchem.com/2016/01/13/bread/
  • Vegetablerer M., Baking It's Chemistry You Can Eat: Bakers Cooking cHEF 120 Pages 6 x 9 inches Journal Paperback





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