Define Yeast and List the essential conditions for its growth – NABTEB QUESTION

DEFINITION OF YEAST.

i. Yeast is a living single-cell micro-organism and in the right conditions with food, warmth and moisture, ferments, producing carbon-dioxide and alcohol while at the same time reproducing itself.

OR

ii. Yeast is a fungus form plant life available as a fresh or dried production

OR

iii. Yeast is a raising agent, consist of minute fungi capable of fermenting a sugar solution, producing carbon dioxide and alcohol. OR iv. Yeast is a form of fungus, which feeds on sugar solution fermenting, producing carbon dioxide and alcohol.

ESSENTIAL CONDITIONS FOR THE GROWTH OF YEAST

i. Warmth: for good temperature for dough production is 22°C –30°C

ii. Moisture

iii. Food

iv. time