Screening, Production and Characterization of Biosurfactants from Caatinga´S Filamentous Fungi
Journal Title: International Journal of Pharmaceutical Science Invention - Year 2017, Vol 6, Issue 5
Abstract
The Caatinga biome may be a source for obtaining metabolites with unique features, such as biosurfactants of microbial origin, amphipathic molecules capable of reducing the surface tension and emulsify hydrocarbons. This study aimed to production and characterization of biosurfactants produced by Caatinga’s filamentous fungi, collected in Sumé city, stored in a collection at CDSA/UFCG. In this research, 10 filamentous fungi were evaluated in relation to emulsifier capacity, totaling six specimens (60%) presented results for Emulsification Index (EI), stability after 24 hours and Emulsification Activity (EA), with emphasis for metabolic liquids produced by fungi CDSA17, CDSA54 and CDSA71, from the genus Aspergillus, that were also evaluated under extreme conditions of temperature and pH, with higher EI at temperature of 60 °C, pH 7.0 and salt concentration 10%. In factorial design 2², in duplicate, analyzing variable of shaking (100 and 200 rpm) and glucose concentration (15 g/L and 25 g/L), tested filamentous fungi showed different behaviors and higher IE were obtained under conditions of 100 rpm and glucose concentration of 15 g/L. According to the above, it is clear that Caatinga’s filamentous fungi have potential to produce biosurfactants.
Authors and Affiliations
Rayza Morganna Farias Cavalcanti, Dayse Pereira Dias Silva, Mabel Calina de França Paz, Jean Cesar Farias de Queiroz
Keywords
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