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Parameters affecting the adsorption of plantaricin 423, a bacteriocin produced by Lactobacillus plantarum 423 isolated from sorghum beer
Author(s) -
Todorov Svetoslav D.,
Dicks Leon M. T.
Publication year - 2006
Publication title -
biotechnology journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.144
H-Index - 84
eISSN - 1860-7314
pISSN - 1860-6768
DOI - 10.1002/biot.200500026
Subject(s) - sorghum , bacteriocin , lactobacillus plantarum , chemistry , food science , adsorption , chromatography , microbiology and biotechnology , bacteria , lactic acid , biology , organic chemistry , agronomy , antimicrobial , genetics
Plantaricin 423 is bactericidal to logarithmic and stationary‐phase cells of Enterococcus sp. HKLHS and L. sakei DSM 20017. Detection of extracellular DNA and β‐galactosidase suggests that the mode of action is most probably by destabilizing of the cell membrane. Adsorption of plantaricin 423 to target cells ranged from 17% for Streptococcus caprinus ATCC 700066 to 67% for Lactobacillus plantarum LMG 13556, Lactobacillus curvatus DF38, Listeria innocua LMG 13568 and Lactobacillus sakei DSM 20017. Treatment of Enterococcus sp. HKLHS and L. sakei DSM 20017 with Triton X‐100, Triton X‐114 and chloroform increased the adsorption of plantaricin.