Abstract
Plantaricin 423, produced by Lactobacillus plantarum 423, was encapsulated in nanofibers that were produced by the electrospinning of 18% (w/v) polyethylene oxide (200 000 Da). The average diameter of the nanofibers was 288 nm. Plantaricin 423 activity decreased from 51 200 AU/ml to 25 600 AU/ml and from 204 800 AU/ml to 51 200 AU/ml after electrospinning, as determined against Lactobacillus sakei DSM 20017 and Enterococcus faecium HKLHS, respectively. Cells of L. plantarum 423 encapsulated in nanofibers decreased from 2.3 × 1010 cfu/ml before electrospinning to 4.7 × 108 cfu/ml thereafter. Cells entrapped in the nanofibers continued to produce plantaricin 423. This is the first report on the encapsulation of a bacteriocin and cells of L. plantarum in nanofibers. The method may be used to design a drug delivery system for bacteriocins and the encapsulation of probiotic lactic acid bacteria. The technology is currently being optimized.
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Cipla Medpro (Pty) Ltd and the National Research Foundation, South Africa, for funding the research.
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Heunis, T.D.J., Botes, M. & Dicks, L.M.T. Encapsulation of Lactobacillus plantarum 423 and its Bacteriocin in Nanofibers. Probiotics & Antimicro. Prot. 2, 46–51 (2010). https://doi.org/10.1007/s12602-009-9024-9
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DOI: https://doi.org/10.1007/s12602-009-9024-9