Chemical Process
Air used in aerobic fermentation must be sterilized, otherwise the

Contamination of pure culture would result
None of these
Recovery of product will be difficult
Uniformity of product cannot be achieved

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Chemical Process
Use of hydrated lime in water treatment

Is to adjust the pH value
Before filtration, reduces the bacterial load on filters
After filtration, combats the corrosive-ness of water due to the presence of O₂ & CO₂
All of these

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