Microbial Growth

VIEW IN MIND MAP

Lag Phase

1) Cell acclimated to media and environmental condition in reaction

2) Cell producing enzyme for survive in reaction

3) Lag time can be reduced or eliminated by selecting an inoculum that has been actively growing in an environmental similar to that reaction

Exponential phase

1) Cells multiplying

2) Growth rate varies with different microorganism and reaction condition

3) Many valuable product produce

4) Growth model 

growth model

 

OR

formula 2

OR

formula 1

Stationary phase

1) Nutrients and substrate diminish

2) Cell growth decelerate

3) No growth

4) Rate of growth = Rate of cell death and no net change in cell mass concentration

5) Fermentation product produced here known as non-growth associates product

 

Death phase

Cell death

VIEW IN MIND MAP

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