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Ethanol Production

Ethanol Production
S cerevisiae start producing ethanol with in

10 h
24 h
12 h
15 h

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Ethanol Production
Yeast is used in the production of

ethyl alcohol
curd
cheese
acetic acid

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Ethanol Production
High ethanol concentration

promotes yeast growth
inhibits bacterial growth
promotes bacterial growth
inhibits yeast growth

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Ethanol Production
The Zygomonas has a merit over yeast because

All of these
it has more specific growth rate
it has high tolerance to ethanol
it has more osmotic tolerance to higher sugar concentration

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Ethanol Production
If starch containing substrates are used for ethanol production, yeast strain can't be used directly because

None of these
starch is not a suitable substrate for the production of ethanol
it doesn't contain amylases to hydrolyze starch
it is converted to pentose sugar

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Ethanol Production
What are the fermentation conditions for the ethanol production?

pH 5; temperature 30°C
pH 5; temperature 35°C
pH 6; temperature 35°C
pH 6; temperature 30°C

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