| Title: | Biosorption of silver cations onto Lactococcus lactis and Lactobacillus casei isolated from dairy products |
| Author(s): | Milanowski M; Pomastowski P; Railean-Plugaru V; Rafinska K; Ligor T; Buszewski B; |
| Address: | "Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, Torun, Poland. Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Torun, Poland" |
| DOI: | 10.1371/journal.pone.0174521 |
| ISSN/ISBN: | 1932-6203 (Electronic) 1932-6203 (Linking) |
| Abstract: | "The current work deals with the phenomenon of silver cations uptake by two kinds of bacteria isolated from dairy products. The mechanism of sorption of silver cations by Lactococcus lactis and Lactobacillus casei bacteria was investigated. Inductively coupled plasma-mass spectrometry (ICP-MS) was used for determination of silver concentration sorbed by bacteria. Analysis of charge distribution was conducted by diffraction light scattering method. Changes in the ultrastructure of Lactococcus lactis and Lactobacillus casei cells after treatment with silver cations were investigated using transmission electron microscopy observation. Molecular spectroscopy methods, namely Fourier transform-infrared spectroscopy (FT-IR) and matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS) were employed for description of the sorption mechanism. Moreover, an analysis of volatile organic compounds (VOCs) extracted from bacterial cells was performed" |
| Keywords: | "Cations/*metabolism Dairy Products/microbiology Lacticaseibacillus casei/*metabolism Lactococcus lactis/*metabolism Silver/*metabolism Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization Spectroscopy, Fourier Transform Infrared;" |
| Notes: | "MedlineMilanowski, Maciej Pomastowski, Pawel Railean-Plugaru, Viorica Rafinska, Katarzyna Ligor, Tomasz Buszewski, Boguslaw eng 2017/04/01 PLoS One. 2017 Mar 31; 12(3):e0174521. doi: 10.1371/journal.pone.0174521. eCollection 2017" |
