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Bleached flour has been treated with bleaching agents (like benzoyl peroxide) to speed up the flour’s aging process. The result is a paler color and lighter, softer texture than unbleached flour.
Bread Flour. Comparing bread flour versus all-purpose flour, the former has the highest protein content of the refined wheat flours, clocking in at up to 14 percent.
"Bleached flour" is "refined" flour with a chemical whitening (bleaching) agent added. "Refined" flour has had the germ and bran, containing much of the nutritional fibre and vitamins, [citation needed] removed and is often referred to as "white flour". Bleached flour is artificially aged using a "bleaching" agent, a "maturing" agent, or both.
Bleached flour is a white flour treated with flour bleaching agents to whiten it (freshly milled flour is yellowish) and give it more gluten-producing potential. Oxidizing agents are usually employed, most commonly organic peroxides like acetone peroxide or benzoyl peroxide , nitrogen dioxide , or chlorine .
Once the endosperm is isolated, it is ground into a fine powder and sifted to remove any remaining fragments of bran or germ. Next, a chemical bleaching process is used to give the flour a whiter color. This bleaching step, usually with chlorine or benzoyl peroxide, destroys many of the original nutrients that were present in the flour.
With all the types of flour to choose from, baking projects can get a little overwhelming. Friend, you’ve come to the right place. Flour is a catch-all te.
The changes of functional properties of the flour proteins are likely to be caused by their oxidation. In countries where bleached flour is prohibited, microwaving plain flour produces similar chemical changes to the bleaching process. This improves the final texture of baked goods made to recipes intended for bleached flours. [2]
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