Valorization of agro-industrial by-products for sustainable production of biosurfactant by Syncephalastrum racemosum UCP 1302




Waste bioconversion; Microbial surfactant; Mucoralean fungus; Cassava wastewater; Waste soybean oil; Corn steep liquor.


The reutilization of agro-industrial by-products for obtaining of high-value added biosurfactants is a promising approach for minimizing the total production costs. In this context, this study aimed to evaluate the production of biosurfactant by the Mucoralean fungus Syncephalastrum racemosum UCP 1302, by bioconversion of renewable substrates: cassava wastewater (CWW), waste soybean oil (WSO) and corn steep liquor (CSL). For this, a 23 full-factorial design (FFD) was applied and the results showed the ability of this strain to produce biosurfactant in all conditions of the FFD, standing out the condition 7 due to the greatest reduction of surface tension (from 72 to 30.9 mN/m). Preliminary characterization showed the lipopeptide nature of the biomolecule, as well as its anionic character and critical micellar concentration (CMC) of 1.25 mg/ml. Biotensoactive demonstrated stability to variations of temperature, pH and NaCl concentrations, wettability in polyester textile and it was effective on reduction of viscosity of burned motor oil. Hence, S. racemosum showed excellent ability to produce biosurfactant by green bioconversion of low-cost substrates, making the bioprocess economical and enabling its biotechnological applications.

Author Biographies

Ana Paula Bione, Catholic University of Pernambuco

Nucleus of Research in Environmental Sciences and Biotechnology

Amanda Barbosa Lins, Catholic University of Pernambuco

Nucleus of Research in Environmental Sciences and Biotechnology

Dayana Montero Rodríguez, Catholic University of Pernambuco

Nucleus of Research in Environmental Sciences and Biotechnology

Adriana Ferreira de Souza, Catholic University of Pernambuco

Nucleus of Research in Environmental Sciences and Biotechnology

Rafael de Souza Mendonça, Catholic University of Pernambuco

Nucleus of Research in Environmental Sciences and Biotechnology

Hilário J. B. de Lima Filho, Catholic University of Pernambuco

Nucleus of Research in Environmental Sciences and Biotechnology



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How to Cite

BIONE, A. P.; LINS, A. B.; RODRÍGUEZ, D. M. .; SOUZA, A. F. de .; MENDONÇA, R. de S. .; LIMA FILHO, H. J. B. de .; CAMPOS-TAKAKI, G. M. Valorization of agro-industrial by-products for sustainable production of biosurfactant by Syncephalastrum racemosum UCP 1302. Research, Society and Development, [S. l.], v. 11, n. 9, p. e58011932372, 2022. DOI: 10.33448/rsd-v11i9.32372. Disponível em: Acesso em: 28 sep. 2022.