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Bibliographic record number: 398068

Journal

Authors: Mrvčić, Jasna; Stanzer, Damir; Bačun-Družina, Višnja; Stehlik-Tomas, Vesna
Title: Copper binding by lactic acid bacteria (LAB)
Source: Bioscience Microflora (1342-1441) 28 (2009), 1; 1-6
Paper type: article
Keywords: Lactobacillus; trace elements; lactic acid bacteria; gastrointestinal tract
Abstract:
Western diet is frequently low in essential metal ions. A common method for preventing metal ion deficiency is pharmacological supplementation, especially in a highly available form such as metalo-protein complexes. Accordingly, in this work, specific lactic acid bacteria were assessed for their ability to bind copper ions. Significant amounts of copper ions were bound, and the binding potential was found to be strain specific. Differences among the strains were evaluated with the Langmuir model for biosorption. Binding of copper was a fast process, strongly influenced by ionic strength, pH and biomass concentration. During the process, copper ions significantly reduced cell viability. Discharge of copper ions in a simulated gastrointestinal tract was examined ; 85-90% of copper ions bound to LAB were discharged in the gastrointestinal model system.
Project / theme: 058-0583444-3466, 058-0583444-3483, 058-0583444-3485
Original language: ENG
Citation databases: SCI-EXP, SSCI i/ili A&HCI
Category: Znanstveni
Research fields:
Biotechnology
URL cjelovitog rada:
Google Scholar: Copper binding by lactic acid bacteria (LAB)
Contrib. to CROSBI by: visnjabd@pbf.hr (visnjabd@pbf.hr), 2. Lip. 2009. u 09:01 sati



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