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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Biosurfactant production by Aureobasidium pullulans in stirred tank bioreactor: New approach to understand the influence of important variables in the process

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Author(s):
Brumano, Larissa Pereira ; Fernandes Antunes, Felipe Antonio ; Souto, Sara Galeno ; dos Santos, Julio Cesar ; Venus, Joachim ; Schneider, Roland ; da Silva, Silvio Silverio
Total Authors: 7
Document type: Journal article
Source: Bioresource Technology; v. 243, p. 264-272, NOV 2017.
Web of Science Citations: 8
Abstract

Surfactants are amphiphilic molecules with large industrial applications produced currently by chemical routes mainly derived from oil industry. However, biotechnological process, aimed to develop new sustainable process configurations by using favorable microorganisms, already requires investigations in more details. Thus, we present a novel approach for biosurfactant production using the promising yeast Aureobasidium pullulans LB 83, in stirred tank reactor. A central composite face-centered design was carried out to evaluate the effect of the aeration rate (0.1-1.1 min(-1)) and sucrose concentration (20-80 g. L-1) in the biosurfactant maximum tensoactivity and productivity. Statistical analysis showed that the use of variables at high levels enhanced tensoactivity, showing 8.05 cm in the oil spread test and productivity of 0.0838 cm. h(-1). Also, unprecedented investigation of aeration rate and sucrose concentration relevance in biosurfactant production by A. pullulans in stirred tank reactor was detailed, demonstrating the importance to establish adequate conditions in bioreactors, aimed to scale-up process. (C) 2017 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 15/06238-4 - Biosurfactants as versatile molecules: a new concept of product for biorefineries and for action against neglected tropical diseases phase 1: screening of yeasts, fermentative production and physicochemical characterization
Grantee:Silvio Silvério da Silva
Support type: Regular Research Grants
FAPESP's process: 14/27055-2 - Processes intensification of lignocellulosic biorefineries integrating ethanol and xylitol production steps from sugarcane bagasse in fluidized bed bioreactor
Grantee:Felipe Antonio Fernandes Antunes
Support type: Scholarships in Brazil - Post-Doctorate