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The limiting factor in the production of large quantities of ethanol as bio-fuel is
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- Lack of a balanced medium
- Ethanol toxicity to cells
- Expensive downstream processing steps
- Only (b) and (c) of the above
Correct Option: D
For ethanol commercial utilization we need high purity which leads to heavy downstream processing cost along with high percentage of ethanol cause dehydration to the microbial inoculums leading to toxicity to cell.
