Environmental Science

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Enppbba3701

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Just answer these questions. No need reference.

1. If you have 6 g/L of glucose and 4 g/L of arabionse what would be the final ethanol yield after fermentation by S. cerevisiae? I will need a specific number.

(100 words)


2. How would you convert pine chips to ethanol? Please describe the steps and the conditions for each process. (100 words)


3. Please compare ethanol to butanol as a transportation fuel. (100 words)


4. How can we improve the butanol production? Hint: please read the reading. (100 words)

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Explanation & Answer

Attached.

Running Head: DISCUSSION

1

Discussion
Institutional Affiliation
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2

DISCUSSION
Question 1.
Saccharomyces cerevisiae has modified in numerous crucial ways. The major one being
that they have the ability of breaking down their food through anaerobic fermentation and
aerobic respiration. S. cerevisiae, improves in yeast ethanol production and tolerance. It should
be noted that the maximum hypothetical yield of ethanol from glucose is 0.511 g/L.
To show the working
0.511 g/L of glucose: 0.51g/L ethanol (maximum)
So, we have 6g/L of glucose + 4 g/L of arabinose = 10 g/L
To calculate the final ethanol yield after S. cerevisiae fermentation we first settle on the fact that
to produce 2 moles of...


Anonymous
Really helpful material, saved me a great deal of time.

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