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4 Cards in this Set
- Front
- Back
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What is fermentation to produce ethanol |
In fermentation it uses yeast to convert sugar to produce ethanol and carbon dioxide |
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What acts as a catalyst in fermentation? |
Zymase enzyme in the yeast cells |
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Why is it important to prevent oxygen getting into the fermentation process? |
The oxygen will react with the ethanol to produce ethanoic acid which lowers the ph and stops the enzyme working |
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What's a disadvantage of fermentation? |
Once the concentration of ethanol reaches around 10-20% the reaction stops and the ethanol kills off the enzymes |
