Bioprocessing (Leaving Cert Biology): Flashcards
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Bioprocessing definition
Bioprocessing definition
Use of enzyme-controlled reactions to make a product
Bioreactor definition
Bioreactor definition
Metal vat where bioprocessing/enzyme-controlled reactions occur
Products from modern bioprocessing
Products from modern bioprocessing
Cheese, yoghurts, vitamins, alcohols
Two main types of bioprocessing
Two main types of bioprocessing
Batch processing & continuous flow processing
Growth phases in batch processing
Growth phases in batch processing
Lag, log, and stationary phases
When product forms in batch processing
When product forms in batch processing
During log and stationary phases
When batch processing stops
When batch processing stops
Before the decline phase
Batch processing: contamination impact
Batch processing: contamination impact
Only one batch is spoiled if contamination occurs
Batch processing: sterilisation disadvantage
Batch processing: sterilisation disadvantage
Must be sterilised often, which is time consuming
Sterile definition
Sterile definition
Free from all microorganisms
Continuous flow: nutrient addition rate
Continuous flow: nutrient addition rate
Same rate as product is withdrawn
Continuous flow: growth phase maintained
Continuous flow: growth phase maintained
Log growth phase
Continuous flow: type of production
Continuous flow: type of production
Continuous production with product constantly produced
Continuous flow: sterilisation advantage
Continuous flow: sterilisation advantage
Requires less frequent sterilisation
Continuous flow: main disadvantage
Continuous flow: main disadvantage
Requires constant monitoring to maintain optimal conditions