Assessment of Resistance and Bioremediation Ability ofLactobacillusStrains to Lead and Cadmium
| Autor: | D. R. Yarullina, Yuri A. Zakharov, D. S. Irisov, Rawil Fakhrullin, Anna V. Kirillova, Anna Danilushkina, Nataliya L. Bruslik, Vladimir S. Bukhmin |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Microbiology (medical) Pollutant Cadmium Article Subject biology Chemistry 030106 microbiology chemistry.chemical_element Human decontamination biology.organism_classification Microbiology QR1-502 Lactic acid law.invention 03 medical and health sciences chemistry.chemical_compound Probiotic Bioremediation law Lactobacillus Food science Bacteria |
| Zdroj: | International Journal of Microbiology, Vol 2017 (2017) |
| ISSN: | 1687-9198 1687-918X |
| DOI: | 10.1155/2017/9869145 |
| Popis: | Cadmium (Cd) and lead (Pb) are heavy metals, important environmental pollutants, and potent toxicants to organism. Lactic acid bacteria (LAB) have been reported to remove Cd and Pb from solutions and therefore represent a useful tool for decontamination of food and beverages from heavy metals. Heavy metal ion binding by LAB was reported as metabolism-independent surface process. In this work tenLactobacillusstrains were investigated with respect to hydrophobicity, Lewis acid-base, and electrostatic properties of their outer cell surface in order to characterize their Cd and Pb removal capacity. SevenL. plantarumandL. fermentumstrains were shown to remove Cd from culture medium. The metabolism-dependent accumulation mechanism of Cd removal was proposed based on extended character of Cd binding and lack of correlation between any of the surface characteristics and Cd removal. The results of this study should be considered when selecting probiotic strains for people at risk of Cd exposure. |
| Databáze: | OpenAIRE |
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