The ability of some local fungal isolates in enzyme lipase production and determine optimal growth conditions for its production By Penisillium devirsum


Abstract in English

It wasdetected for the ability of a local fungus A.niger, A.alternata, F.oxysporum, F.solaniandP.devirsum to produce the enzyme lipase in solidmedium including Triputyrin. The enzymic activity of P.devirsum fungus is distinction from other fungus, while the fungus A.alternata failed to produce the lipase. Then they tested quantitatively using a liquid center to determine the best conditions for best growth to fungus P.devirsum and for best produce to enzyme lipase. It indicates that corn oil is the best carbonic source for growth of fungus after 5 days of incubation, as biomass reached(15.99g/L) and effective of lipase (67.43%).And it found that the concentration of 2% of the corn oil has achieved best biomass (17.83g/L) and best production of enzyme lipase effectively(72.78%). Temperature 34 c achieved the highest biomass (18.94g/L) and best production of enzyme lipase (76.16%), and pH =7 was the best for the growth of fungus in biomass reached (21.87g/L) and production of lipase effectively (82.93%). While the nitrogenic source gave peptone biggest value to biomass (27.08 g/L) and highest production for enzyme (88.12%) in optimal conditions reached.

References used

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