期刊
PROBIOTICS AND ANTIMICROBIAL PROTEINS
卷 2, 期 1, 页码 46-51出版社
SPRINGER
DOI: 10.1007/s12602-009-9024-9
关键词
Encapsulation; Nanofibers; Bacteriocins; Bacteria
资金
- Cipla Medpro (Pty) Ltd
- National Research Foundation, South Africa
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 x 10(10) cfu/ml before electrospinning to 4.7 x 10(8) 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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