| dc.description.abstract | With the advance in biotechnology, especially related to technology of fermentation, aumejam pespectivas for bioremediation of waste. The term waste is used in a broad sense, adding not only more solid also the wastewater and the materials present in air emissions. The waste water generated in general that dairy industries have high levels
of biochemical demand (BOD) and chemical oxygen (COD) with a view to a high content of fats, increase the concentration of organic matter, justifying the need to bioprocessing. In this sense we assessed the biotechnological potential of the fungus Aspergillus parasiticus isolated from soil of the Caatinga, PE, Brazil, in the production of biomolecules lipase enzyme and lipid seeking their application in bioremediation of
waste from laticíneos industry. Confirmation of enzyme production by Aspergillus parasiticus was performed by culturing in standard medium in the presence of olive oil 0.5 g / L for 120 h, incubated at 28 ° C and 37 ° C respectively. The results showed that the best condition was obtained in 96 hours of cultivation at 28 ° C with a Idice 5.2 U /
ml. Then tests were carried out with waste rich in oils, serum leiten (SL) and the ice cream residue (RS) from the dairy industry waste, using a 22 factorial design with three replications at the center point, for 120 hours at 28 ° C. Observed that the test 4, with 45% (RS) and 30% (SL) showed the best results in the production of biomass 68.1 g / L and lipase activity 20.0 U / mL, and greater accumulation of lipids in their biomass reaching 67.61% in lipids, suggesting that the biotreatment is possible, in addition to other applicability in biotechnology in particular the production of biodiesel, in the case
of an oleaginous fungus. | eng |
