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Ethanol Production

Ethanol Production
S cerevisiae start producing ethanol with in

10 h
12 h
24 h
15 h

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Ethanol Production
Yeast is used in the production of

acetic acid
curd
ethyl alcohol
cheese

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Ethanol Production
To maintain aseptic conditions during fermentation which of the following is needed?

All of these
Sterilization of fermentor
Sterilization of air supply
Aeration and agitation

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Ethanol Production
The Zygomonas has a merit over yeast because

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

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Ethanol Production
Candida utilis is used for the fermentation of waste sulphate liquor since it ferments

hexoses only
both hexoses and pentoses
none of these
pentoses only

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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
it is converted to pentose sugar
starch is not a suitable substrate for the production of ethanol
it doesn't contain amylases to hydrolyze starch

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