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Production of bacteriocin by Bacteroides fragilis and partial characterization
Author(s) -
Avelar K. E. S.,
Pinto L. J. F.,
Antunes L. C. M.,
Lobo L. A.,
Bastos M. C. F.,
Domingues R. M. C. P.,
De Souza Ferreira M. C.
Publication year - 1999
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1046/j.1365-2672.1999.00603.x
Subject(s) - bacteriocin , bacteroides fragilis , microbiology and biotechnology , strain (injury) , biology , bacteroidaceae , bacteria , antibiotics , antimicrobial , genetics , anatomy
The ability of Bacteroides fragilis strains, isolated from various sources, to produce bacteriocin was evaluated. All strains isolated from intestinal infections were producers in high levels and less susceptible to the others. Strains from other origins were found to produce bacteriocin at a medium level and they were variably susceptible. Some properties of one bacteriocin produced by the Bact. fragilis 079298–3 strain were analysed, providing evidence of its protein nature, with stability over a wide range of pH and retained inhibitory activity after heating. This variability seems to suggest that bacteriocin typing is a good method for this species.