WHAT IS YEAST

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WHAT IS YEAST

     Yeast is an egg - shaped single cell fungus which is visible with a microscope. It needs food,warmth and moisture to thrive. it changes its food sugar and starch  through fermentation,into carbon dioxide and alcohol.

USES OF YEAST

  It is used in baking bread.
 When baking yeast leavened bread, the yeast ferments the sugar in the flour and release carbon dioxide .Due to elasticity of and stretchable property of dough carbon dioxide cannot escape. The expanding gas causes the dough to inflate to rise.

    Yeast is also an important ingredient in brewing beer. The yeast eats the sugar in beer and produce carbon dioxide and alcohol.

NUTRITIONAL BENEFIT OF YEAST

  Yeast rich food can provide proteins and vitamin B. It keeps the digestive system healthy. It also help in absorbing vitamins and minerals which are present in food.

STORAGE OF YEAST

    Once exposed to the air,it should be stored in the refrigerator. Storage in the freezer increase the life of yeast. It should be sealed properly before freezing.

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