This document summarizes the application of computers in fermentation. It discusses the initial use of computers in the 1960s for modeling fermentation processes. Computers are now used for logging process data, analyzing the data, and controlling fermentation processes. Sensors are used to monitor important factors like temperature, pH, dissolved oxygen, and mineral/nutrient levels to provide data inputs for computer control and modeling of fermentation.

1. Application of computer in
fermentation
K.sivaprakash,III Bsc.microbiology,
Department of microbiology,
ANJAC.

2. INTRODUCTION
• The initial use of computers in the 1960s for modelling fermentation
process control for production of glutamic acid and penicillin
production.
• They are first discovered by Yamashita and Murao
• Three distinct areas of computer function were recognized by Nyiri
•

3. FERMENTATION
• The term “FERMENTATION” is derived from the latin verb fervere ,to
boil.
• The boiling appearance is due to the production of carbon dioxide
bubbles caused by anaerobic catabolism of the sugar present in the
extract.
• Its biochemical meaning relates to the generation of energy by the
catabolisms of organic compunds.

4. FERMENTER
• The main function of a fermenter is to provide a controlled
environment for the growth of microorganisms to obtain a desired
product.
• It is used to large scale production in the industries.

5. USAGE OF FERMENTER
• Fermenter are used in the large scale production in the most
industries.
• Dairy production
[milk,cheese,beer]
• Antibiotic production
[penicillin,streptomycin]
• Enzyme production
[amylase,protease]
• Organic Acid production
[citric acid.glutamic acid]
• Vitamins production
[vitamin B and A]

6. FERMENTER IMPORTANT PARTS
• CONSTRUCTION MATERIAL.
• TEMPERATURE CONTROL.
• AERATION AND AGITATION.
the agitator.
stirrer glands.
baffles.
the aeration system.

8. COMPUTER APPLICATION

9. COMPUTER FUNCTION
• They are three distinct areas of computer function;
 logging of process data.
 Data analysis.
 process data.

11. LOGGING OF PROCESS DATA
• Data logging is performed by the data acguisition system which has
both hardware and software components.
• There is an interface between the sensors and the computer.
• The software should include the computer program for sequential
scanning of the sensor signals and the procedure of data storage.

12. DATA ANALYSIS
[Reduction of logging data]
• Data reduction is performed by the data analysis system ,which is a
computer program based on a series of selected mathematical
equation.
• The analysed information may then be put on a print out, fed into a
data bank or utilized for process control.

13. PROCESS CONTROL
• Process control is also performed a computer program
• Signals from the computer are fed to pumps ,valves or switches via
the interface.
• They are two type of control;
1.DDC-Direct Digital Control.
2.SSC-Supervisory Set-point Control.

14. • DDC;
It is when the fermenter is under the direct control of the
computer software.
• SSC;
the use of independent controller to manage all control function
of a fermenter and the computer communicates with the controller
only to exchange information.

16. SENSORS
• It is used to fermenter in the fermentation techniques.

17. • Inductive sensors
Inductors and inductance can strike fear into the hearts of
normally sane engineers, but inductance is the basis for many sensing
applications. Inductive sensors are used heavily in machine applications
to sense the proximity of a metal object.

20. APPLICATION
• TEMPERATURE CONTROL.
• PH CONTROL.
• DISSOLVED THE OXYGEN.
• MINERAL/NUTRIENT LEVEL.

21. Sensors usage;

22. THANKING YOU