Author(s):
Vecino, Xanel ; Rodríguez-López, L. ; Gudiña, Eduardo J. ; Cruz, J. M. ; Moldes, A. B. ; Rodrigues, L. R.
Date: 2017
Persistent ID: https://hdl.handle.net/1822/47492
Origin: RepositóriUM - Universidade do Minho
Project/scholarship:
info:eu-repo/grantAgreement/FCT/5876/147337/PT;
info:eu-repo/grantAgreement/FCT/5876-PPCDTI/126270/PT
;
info:eu-repo/grantAgreement/FCT/COMPETE/126270/PT;
info:eu-repo/grantAgreement/FCT/5876/147337/PT;
Subject(s): Vineyard pruning waste; Cellulosic sugars; Biosurfactant; Lactobacillus paracasei; Carbon source; Chemical composition; Science & Technology
Description
Abstract Cellulosic sugars extracted from vineyard pruning waste (VPW) were used as a low-cost carbon source for biosurfactant production by Lactobacillus paracasei. The results obtained showed that when glucose from VPW was used, the biosurfactant was a glycolipopeptide, whereas when it was replaced by lactose the biosurfactant produced was a glycoprotein. Additionally, it was found that the extraction process, either with phosphate-buffer or phosphate-buffer saline, influenced the biosurfactant chemical structure and emulsion capacity. Overall, these results highlight the possibility of producing biosurfactants à la carte with the same strain but changing the carbon source, increasing its potential in different industrial applications.
This study was supported by the Portuguese Foundation for Science and Technology (FCT) under the scope of the strategic funding of UID/BIO/04469/2013 unit, COMPETE 2020 (POCI-01-0145-FEDER-006684) and the project RECI/BBB-EBI/0179/2012 (FCOMP-01-0124-FEDER-027462), as well as X. Vecino post-doctoral grant (SFRH/BPD/101476/2014). The authors also acknowledge financial support from BioTecNorte operation (NORTE-01-0145-FEDER-000004) and the project MultiBiorefinery (POCI-01-0145-FEDER-016403) funded by the European Regional Development Fund under the scope of Norte2020—Programa Operacional Regional do Norte and the Post-doctoral grant CEB-BPD/01/2015/07 from the project UID/BIO/04469/2013, funded by FCT, to E. Gudiña. Additionally, the authors acknowledge the financial support from Spanish Ministry of Economy and Competitiveness (FEDER funds under the project CTM2015-68904) and L. Rodríguez-López acknowledges to the Spanish Ministry of Education, Culture and Sport for her pre-doctoral fellowship (FPU15/00205).
info:eu-repo/semantics/publishedVersion
