title: Parameters affecting the adsorption of plantaricin 423, a bacteriocin produced by Lactobacillus plantarum 423 isolated from sorghum beer.
abstract: Plantaricin 423 is bactericidal to logarithmic and stationary-phase cells of Enterococcus sp. HKLHS and L. sakei DSM 20017. Detection of extracellular DNA and beta-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.
authors.affiliation: Department of Microbiology, University of Stellenbosch, Stellenbosch, South Africa.
authors.forename: Svetoslav D
authors.initials: SD
authors.lastname: Todorov
authors.forename: Leon M T
authors.initials: LM
authors.lastname: Dicks
mesh_terms: D000327:Adsorption; D001430:Bacteriocins / Q000737:chemistry* / Q000302:isolation & purification* / Q000494:pharmacology; D001515:Beer / Q000382:microbiology*; D002462:Cell Membrane / Q000737:chemistry*; D005516:Food Microbiology; D048191:Lactiplantibacillus plantarum / Q000737:chemistry* / Q000187:drug effects / Q000378:metabolism*; D045868:Sorghum / Q000382:microbiology*
chemical_list: D001430:Bacteriocins; C471833:plantaricin 423