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Ciandrini E, Campana R, Casettari L, Perinelli DR, Fagioli L, Manti A, Palmieri GF, Papa S, Baffone W. Characterization of biosurfactants produced by Lactobacillus spp. and their activity against oral streptococci biofilm. Appl Microbiol Biotechnol 2016; 100:6767-6777. [PMID: 27102127 DOI: 10.1007/s00253-016-7531-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 03/22/2016] [Accepted: 03/31/2016] [Indexed: 01/29/2023]
Abstract
Lactic acid bacteria (LAB) can interfere with pathogens through different mechanisms; one is the production of biosurfactants, a group of surface-active molecules, which inhibit the growth of potential pathogens. In the present study, biosurfactants produced by Lactobacillus reuteri DSM 17938, Lactobacillus acidophilus DDS-1, Lactobacillus rhamnosus ATCC 53103, and Lactobacillus paracasei B21060 were dialyzed (1 and 6 kDa) and characterized in term of reduction of surface tension and emulsifying activity. Then, aliquots of the different dialyzed biosurfactants were added to Streptococcus mutans ATCC 25175 and Streptococcus oralis ATCC 9811 in the culture medium during the formation of biofilm on titanium surface and the efficacy was determined by agar plate count, biomass analyses, and flow cytometry. Dialyzed biosurfactants showed abilities to reduce surface tension and to emulsifying paraffin oil. Moreover, they significantly inhibited the adhesion and biofilm formation on titanium surface of S. mutans and S. oralis in a dose-dependent way, as demonstrated by the remarkable decrease of cfu/ml values and biomass production. The antimicrobial properties observed for dialyzed biosurfactants produced by the tested lactobacilli opens future prospects for their use against microorganisms responsible of oral diseases.
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Affiliation(s)
- Eleonora Ciandrini
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy
| | - Raffaella Campana
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy
| | - Luca Casettari
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy
| | - Diego R Perinelli
- School of Pharmacy, University of Camerino, via S. Agostino 1, 62032, Camerino, MC, Italy
| | - Laura Fagioli
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy
| | - Anita Manti
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy
| | | | - Stefano Papa
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy
| | - Wally Baffone
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy.
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