Question

Reema’s mother cooked dosa and idli. She added some yeast to the newly made batter and kept it for overnight. Reason behind it (a) For smoothening ofbatter (b)For fermentation (c) For making idli and dosa tasty (d)None of these.



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Answer 1

Explanation:

for making idling and dosa tasty

Answer 2

(b)For fermentation

• Yeast is added to the batter of the dosa and idli because the addition of yeast makes that light and fluffy. This process of fermentation takes around 7-8 hours.
• The yeast added to the batter reacts with the sugar present in the flour and release Carbon Dioxide gas and ethanol. It is due to this carbon dioxide release why dosa and idli turn out to be light and fluffy.
• Fermentation always takes place anaerobically.