Question

why do we substitute curd with yeast if we don't have yeast powder? does curd acts as yeast?​

Answer 1

Answer:

Yeast is an essential ingredient in many bread recipes, including dinner rolls, pizza dough, cinnamon rolls, and most loaf breads. It causes dough to rise, resulting in pillow-like soft bread.

For baking purposes, it’s usually sold as instant or active dry yeast — a light brown powder composed of a yeast called Saccharomyces cerevisiae.

Dry yeast activates in the presence of water and sugar as it begins to eat and digest the sugar. This produces carbon dioxide bubbles that get trapped in dense dough. They then expand at room temperature or when exposed to heat, causing the dough to rise (1).

This rising process — known as leavening — results in larger, fluffier, and softer baked goods than those that don’t rise, such as flatbreads and crackers.

You may wonder whether you can replicate this leavening process without yeast. Fortunately, several other ingredients replicate the action of yeast in baking.

Explanation:

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