Abstract
Most chemical reactions produce unwanted by-products. In an effort to reduce environmental problems these by-products could be used to produce valuable organic chemicals. In biodiesel industry a huge amount of glycerol is generated, approximately 10% of the final product. The research group from University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca developed opportunities to produce l(+) lactic acid from the glycerol. The team is using the Rhizopus oryzae NRRL 395 bacteria for the fermentation of the glycerol. The purpose of the research is to improve the production of l(+) lactic acid in order to optimize the process. A predictive model obtained by neural networks is useful in this case. The main objective of the present work is to present the developed user-friendly application useful in modeling this fermentation process, in order to be used by people who are inexperienced with neural networks or specific software. Besides the interface for training of a new neural network in order to develop the model in some characteristic condition, the software also provides an interface for visualization of the results, useful in interpretation and as a tool for prediction.
Highlights
Studies show that the increased usage of finite natural resources compels the search for a substitute
The main objective of the present work is to develop a user-friendly application to model and predict the fermentation process from the production of l(+)-lactic acid, in order to be used by people who are inexperienced with neural networks or specific software
The present application is constructed for the modeling and prediction stage of the fermentation process from the production of l(+)-lactic acid
Summary
Studies show that the increased usage of finite natural resources compels the search for a substitute. The most affected resource is considered to be the fuels: gas, petrol, etc. Bio-fuels have been developed for this purpose. Solving the search related problems new obstacles are created [1]. In the bio-chemical reaction which has as its product the bio-fuel, an unwanted by-product is created, glycerol. This organic substance is seldom used in other industries. It makes the quality of bio-diesel worse, caused by the big percentage of obtained glycerol (around 10% of the final product).
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