Biodegradación de aceites lubricantes en residuos lignocelulosicos por Pleurotus ostreatus
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Rocha Garzón, Nelson | 2013-09-20
The biorremedicíon is a tool to mitigate the environmental impact caused by multiple toxic substances present in many ecosystems, this product has been achieved previously biorestoration natural environments contaminated by the elimination, mitigation or transformation of these compounds [1, 2]. This technique taking advantage of the metabolic
capacity of microorganisms (bacteria, fungi, yeasts and algae) to lighten the natural biodegradation processes. In this study we evaluated the invasion of Pleurotus ostreatus better when residual oil is added to 5, 10 and 15% on PDA medium, also determined the residual oil biodegradation lignocellulosic substrates by the action of this fungus, and
fungus grown on substrate mix-oil and oil-bamboo fungus which determined the chemical composition analysis of mushrooms, biological efficiency, presence of metals and evaluation of microbial and antioxidant activity of the ethanol extracts. The main results indicate that the mycelium has better growth when 5% residual oil used in PDA medium,
this fungus also has the ability to biodegrade the hydrocarbons present in the oil, oil mixture presenting the café with the best performance in invasion of the substrate mycelium and remove achieving a 33,46 % oil present in the substrate, this product was obtained in a higher biological efficiency 37,19% in a period of 41 days with respect to the
other mixed substrate. Also presented a low biological activity of the extracts used being the most representative CA extract with an LD50 of 760,03 mg / mL, and fungal activity present at a concentration of 10000 ppm. Also this same extract was that presented the best
antioxidant activity against DPPH and ABTS methods. As demonstrated the feasibility of composting as a tool in the disposal of hazardous waste.
LEER