What is the purpose of oil or butter in bread?
Specifically in wheat and potato breads, what is the purpose of adding oil or butter to the dough?
I have always assumed it was just for flavor, but I suspect there is some background chemical reasons for adding it.
Best Answer
Breads get their structure from glutens--a type of protein formed by the combination of glutenin with gliadin. Kneading and resting the dough helps the formation of glutens--I assume by shifting glutenin and gliadin molecules around, this increases the odds of bindings occurring.
Oils can bind to glutenin and gliadin and inhibit these reactions, so fats--oils and butter--definitely play a role in the texture control.
It prevents the dough from getting too elastic, which controls texture. This elasticity change would also change the maximum air bubble size. Altering resting times and yeast quantity also change these, but trading off for a different flavor. Oil may play other roles, but these are what I recall reading about off the top of my head. Yes, it does contribute to flavor as well.
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What does butter or oil do in bread dough?
Fats work as tenderizers in breads by coating some of the proteins that form gluten, preventing them from hydrating and linking up to form large networks that would lead to toughness.What is the purpose of oil in bread?
Probably the biggest function of oil in most baking recipes is to keep your product moist. It basically captures the gases that are released from the interaction of the baking powder and baking soda, and slows down gluten formation to keep certain baked goods tender and fluffy in texture!Does bread need oil or butter?
Adding butter (unsalted) or oil (olive or vegetable) in small quantities to bread results in a higher rise, a crisper crust, and a longer shelf life. When fat is added in large quantities, such as for brioche, it results in a softer texture and less volume.Butter vs oil in baking.. what is the difference?
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Answer 2
As Eric Hu said in a previous answer, oil reduces the formation of gluten, therefore affecting the elasticity of the dough.
From the chemical and physical point of view, without altering other variables (yeast, rising time, salt, amount of liquid,etc) a dough with less or no oil will me more elastic, allowing bigger bubbles and giving the bread a chewier texture.
This is the case of French bread, for instance; French bread requires longer rising times to develop flavors, slower yeast activity (achieved by adding more salt to the dough), and no oil or fat, to get a more elastic dough and achieve its characteristic texture.
Answer 3
Personally butter and oil adds a particular flavor to bread and in fact the bread looks like cake and seems like chocolate cake. When the bread especially the local type called kumba bread that I produced is oiled with enough butter inside before baking, the bread comes out from the oven very bright and having that coffee brown color so attractive to eat.
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