REVIEW ARTICLE


Immobilization of Bacteriocins from Lactic Acid Bacteria and Possibilities for Application in Food Biopreservation



Yulian Tumbarski1, Anna Lante2, *, Albert Krastanov3
1 Department of Microbiology, University of Food Technologies, 26, Maritsa Blvd., 4002 Plovdiv , Bulgaria
2 Department of Agronomy, Food, Natural Resources, Animals, and Environment – DAFNAE, University of Padova, Viale Università 16, 35020, Agripolis, Italy
3 Department of Biotechnology, University of Food Technologies, 26, Maritsa Blvd., 4002 Plovdiv , Bulgaria


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© 2018 Tumbarski et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Agronomy, Food, Natural Resources, Animals, and Environment – DAFNAE, University of Padova, Anna Lante, Viale Università 16, 35020, Agripolis, Italy; Tel.:+39 049 8272920; E-mail: anna.lante@unipd.it


Abstract

Bacteriocins are biologically active compounds produced by a large number of bacteria, including lactic acid bacteria (LAB), which exhibit antimicrobial activity against various saprophytic and pathogenic microorganisms. In recent decades, bacteriocins are increasingly becoming more important in different branches of the industry due to their broad antibacterial and antifungal spectrum - in the food industry for natural food preservation and expiry date extension; in the health sector for preparation of probiotic foods and beverages; in the clinical practice as alternatives of conventional antibiotics; in the agriculture as biocontrol agents of plant pathogens and alternatives of chemical pesticides for plant protection. The broad antimicrobial spectrum of bacteriocins has stimulated the research attention on their application mainly in the food industry as natural preservatives. Most scientific achievements concerning the application food biopreservation are related to bacteriocins produced by LAB. The lactic acid bacteria bacteriocins can be produced in the food substrate during its natural fermentation or can be added in the food products after obtaining by in vitro fermentations under optimal physical and chemical conditions. Moreover, the immobilization of LAB bacteriocins on different matrices of organic and inorganic origin has been proposed as an advanced approach in the natural food preservation for their specific antimicrobial activity, anti-biofilm properties and potential use as tools for pathogen detection.

Keywords: Bacteriocins, Lactic acid bacteria, Immobilization, Antimicrobial activity, Anti-biofilm properties.