Ethanol Production

Question: After the fermentation is over, ethanol is recovered by
[A].

centrifugation

[B].

distillation

[C].

filtration

[D].

cell disintegration

Answer: Option B

Explanation:

No answer description available for this question.

Question: As the fermentation for the ethanol production is over, the cells are separated to get the biomass of yeast cells that is used
[A].

for next fermentation

[B].

as single cell protein for animal feed

[C].

as manure

[D].

all of the above

Answer: Option B

Explanation:

No answer description available for this question.

Question: Ethanol is produced by
[A].

continuous fermentation

[B].

batch fermentation

[C].

both (a) and (b)

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: If starch containing substrates are used for ethanol production, yeast strain can’t be used directly because
[A].

it doesn’t contain amylases to hydrolyze starch

[B].

starch is not a suitable substrate for the production of ethanol

[C].

it is converted to pentose sugar

[D].

none of the above

Answer: Option A

Explanation:

No answer description available for this question.

Question: Candida utilis is used for the fermentation of waste sulphate liquor since it ferments
[A].

hexoses only

[B].

pentoses only

[C].

both hexoses and pentoses

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: Yeast is used in the production of
[A].

ethyl alcohol

[B].

acetic acid

[C].

cheese

[D].

curd

Answer: Option A

Explanation:

No answer description available for this question.

Question: Which of the following organism is not used in any of the traditional industrial fermentation?
[A].

E. coli

[B].

Yeast

[C].

Bacillus

[D].

Pseudomonas

Answer: Option A

Explanation:

No answer description available for this question.