publication . Article . 2010

Isolation and functional characterization of a biosurfactant produced by Lactobacillus paracasei

Gudiña, Eduardo J.; Teixeira, J. A.; Rodrigues, L. R.;
Open Access
  • Published: 01 Mar 2010 Journal: Colloids and Surfaces B: Biointerfaces, volume 76, pages 298-304 (issn: 0927-7765, Copyright policy)
  • Publisher: Elsevier BV
  • Country: Brazil
Abstract
In this study, the crude biosurfactant produced by a Lactobacillus paracasei strain isolated in a Portuguese dairy industry was characterized. The minimum surface tension (41.8mN/m) and the critical micelle concentration (2.5 mg/ml) obtained were found to be similar to the values previously reported for biosurfactants isolated from other lactobacilli. The biosurfactant was found to be stable to pH changes over a range from 6 to 10, being more effective at pH 7, and showed no loss of surface activity after incubation at 60 ◦C for 120 h. Although the biosurfactant chemical composition has not been determined yet, a fraction was isolated through acidic precipitatio...
Subjects
free text keywords: Biosurfactant, Anti-adhesive, Autoaggregation, Science & Technology, Biotechnology, Physical and Theoretical Chemistry, Colloid and Surface Chemistry, Surfaces and Interfaces, General Medicine, Incubation, Strain (chemistry), Antimicrobial, Critical micelle concentration, Microorganism, Lactobacillus paracasei, biology.organism_classification, biology, Probiotic, law.invention, law, Chemistry, Chromatography, Chemical composition
46 references, page 1 of 4

[1] J.D. Van Hamme, A. Singh, O.P. Ward, Biotechnol. Adv. 24 (2006) 604.

[2] A. Singh, J.D. Van Hamme, O.P. Ward, Biotechnol. Adv. 25 (2007) 99.

[3] E.Z. Ron, E. Rosenberg, Environ. Microbiol. 3 (2001) 229.

[4] P. Singh, S.S. Cameotra, Trends Biotechnol. 22 (2004) 142.

[5] L.R. Rodrigues, I.M. Banat, J.A. Teixeira, R. Oliveira, J. Antimicrob. Chemother. 57 (2006) 609.

[6] S. Mukherjee, P. Das, R. Sen, Trends Biotechnol. 24 (2006) 509.

[7] A.A. Bodour, K.P. Dress, R.M. Maier, Appl. Environ. Microbiol. 69 (2003) 3280.

[8] M. Nitschke, S.G.V.A.O. Costa, J. Contiero, Biotechnol. Prog. 21 (2005) 1593.

[9] A. Daverey, K. Pakshirajan, Appl. Biochem. Biotechnol. (2008).

[10] F. Ahimou, P. Jacques, M. Deleu, Enzyme Microb. Technol. 27 (2000) 749.

[11] M.M. Velraeds, H.C. Van der Mei, G. Reid, H.J. Busscher, Colloids Surf. B Biointerfaces 8 (1996) 51.

[12] M.M. Velraeds, H.C. Van der Mei, G. Reid, H.J. Busscher, Appl. Environ. Microbiol. 62 (1996) 1958.

[13] H.J. Busscher, C.G. Van Hoogmoed, G.I. Geertsema-Doornbusch, M. Van der Kuijl-Booij, H.C. Van der Mei, Appl. Environ. Microbiol. 63 (1997) 3810.

[14] L.R. Rodrigues, A. Moldes, J.A. Teixeira, R. Oliveira, Biochem. Eng. J. 28 (2006) 109.

[15] L.R. Rodrigues, J.A. Teixeira, R. Oliveira, Biochem. Eng. J. 32 (2006) 135.

46 references, page 1 of 4
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