Biodegradation of vegetable oil by filament fungi and process modeling
Keywords: Biodegradation of cooking oil; Filamentous Fungi, Fuzzy Logic.
Technological developments have provided several benefits, such as ease of communication, transportation, among others. However, along evolution came environmental degradation due to improper disposal of cooking oil. The objective of this work was to use filamentous fungi for the biodegradation of cooking oil and jointly carry out the process modeling using an intelligent system. To carry out the experiments, a synthetic medium and four filamentous fungi were used, which three showed enzymatic production (P. crysogenum, P. aculeatus and A. niger). After enzymatic production test, the fungi that produced the enzyme of interest in the oil were A. niger and P. aculeatus (where the value was 0.6 g.L-1 and approximately 0.4 g.L-1 respectively). With those better results, they passed through the growth curve stage and P. aculeatus showed the best growth result (approximately 0.38 g.L-1). In the process modeling stage, it is used fuzzy logic aiming to obtain as a result the growth of the fungus and biodegradation, and thus to make a comparison with the experimental data. Through the results, it can be observed that the data presented in the laboratory were consistent with the results presented by the fuzzy logic.