Fungi have always attracted a lot of attention as they are able to produce a vast repertoire of enzymes that find a broad spectrum of uses in biotechnological and industrial fields. Undoubtedly, one of the most promising biocatalysts is the lipase, which has been widely used for the biotransformation of a number of commercial products due to its high stability, high catalytic efficiency, versatility and selectivity, making it one of the most attractive and best-studied enzymes. In this study we report the isolation and molecular identification of new lipase-producing fungi from different environmental samples from Morocco. The production and activity of extracellular lipases, at different parameters, was evaluated using the Rhodamine B agar, submerged fermentation and biochemical methods. Two fungal strains Arthrographis curvata and Rhodosporidium babjevae, were isolated and found to produce large amounts of lipases. The optimal activity of the extracellular lipase was detected at 40°C and pH 9.0 for A. curvata and at 40 °C and pH 8.0 for R. babjevae. This study add new information at the growing list of fungal species producing lipases with improved physicochemical proprieties which could constitute a new line of research for further studies and to be exploited for industrial or bioremediation purposes.

Arthrographis curvata and Rhodosporidium babjevae as new potential fungal lipase producers for biotechnological applications

El Aamri L.
Primo
;
Scordino F.;Barresi C.;Criseo G.;Barreca D.
Penultimo
;
Romeo O.
Ultimo
2020-01-01

Abstract

Fungi have always attracted a lot of attention as they are able to produce a vast repertoire of enzymes that find a broad spectrum of uses in biotechnological and industrial fields. Undoubtedly, one of the most promising biocatalysts is the lipase, which has been widely used for the biotransformation of a number of commercial products due to its high stability, high catalytic efficiency, versatility and selectivity, making it one of the most attractive and best-studied enzymes. In this study we report the isolation and molecular identification of new lipase-producing fungi from different environmental samples from Morocco. The production and activity of extracellular lipases, at different parameters, was evaluated using the Rhodamine B agar, submerged fermentation and biochemical methods. Two fungal strains Arthrographis curvata and Rhodosporidium babjevae, were isolated and found to produce large amounts of lipases. The optimal activity of the extracellular lipase was detected at 40°C and pH 9.0 for A. curvata and at 40 °C and pH 8.0 for R. babjevae. This study add new information at the growing list of fungal species producing lipases with improved physicochemical proprieties which could constitute a new line of research for further studies and to be exploited for industrial or bioremediation purposes.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11570/3174781
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