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Applying neural networks as software sensors for enzyme engineering.
1Laboratory of Bioprocess Engineering, Helsinki University of Technology, PO Box 6100, FIN-02015 HUT, Finland.
Trends in Biotechnology
|April 17, 1999
Summary
Online control of enzyme production is challenging due to biological uncertainties and sensor limitations. Artificial neural networks offer a solution for predicting fermentation endpoints and improving process control.
Area of Science:
- Biotechnology
- Biochemical Engineering
- Process Control
Background:
- Enzyme production processes face challenges in online control due to inherent biological system variability.
- Lack of suitable online sensors for critical process variables hinders effective real-time monitoring and management.
- Accurate prediction of fermentation endpoints is crucial for economic optimization in enzyme manufacturing.
Purpose of the Study:
- To explore the application of artificial neural networks (ANNs) for computer-assisted control of enzyme production.
- To investigate the potential of ANNs as software sensors for key process variables in fermentation.
- To evaluate the feasibility of intelligent methods for predicting fermentation endpoints in enzyme production.
Main Methods:
- Development and training of feedforward-backpropagation neural network models.
- Utilizing trained neural networks as predictive software sensors for online process monitoring.
- Focus on factors influencing the performance of neural network models in enzyme production control.
Main Results:
- Demonstrated that well-trained feedforward-backpropagation neural networks can function effectively as software sensors.
- Indicated the potential for ANNs to provide real-time predictions for critical process variables.
- Highlighted that neural network performance is contingent upon various influencing factors.
Conclusions:
- Artificial neural network models present a viable approach for addressing online control challenges in enzyme production.
- ANNs can serve as effective software sensors, mitigating the need for specialized physical sensors.
- Intelligent control strategies based on ANNs hold significant economic promise for optimizing fermentation processes.