Anti-Listeria Activity of Bioactive Food Packaging on Artificially Contaminated Sliced Cheese
The aims of this study were to (1) study the optimal growth condition for two Lactococcus lactis strains to produce the anti‐listeria compounds and (2) evaluate the effect of films activated with a twofold concentrated cell‐free supernatant of La. lactis to inhibit Listeria monocytogenes. For the gr...
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Published in | Journal of food processing and preservation Vol. 40; no. 2; pp. 249 - 256 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Blackwell Publishing Ltd
01.04.2016
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Subjects | |
Online Access | Get full text |
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Summary: | The aims of this study were to (1) study the optimal growth condition for two Lactococcus lactis strains to produce the anti‐listeria compounds and (2) evaluate the effect of films activated with a twofold concentrated cell‐free supernatant of La. lactis to inhibit Listeria monocytogenes. For the growth conditions, skimmed milk added to either Ml7 or MRS provided the highest levels of anti‐listeria activity assayed (800 arbitrary unit per milliliter) for both La. lactis strains. A significant decrease of Li. monocytogenes counts was observed in cheese packed in films treated with an average decrease of 2.12 log colony‐forming unit per gram after 15 days of storage.
Practical Applications
The antimicrobial film for food packaging can be used for the preservation of perishable foods such as the sliced cheese. This film developed in our study inhibits Listeria monocytogenes growth in sliced cheese, and does not have an adverse effect on the lactic microbiota, contributing to the preservation of the quality of the product. Thus, it could be a useful tool for the control of the development of pathogens in foods during storage of dairy products. |
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Bibliography: | ark:/67375/WNG-6LH4MP1M-3 ArticleID:JFPP12602 Lombardia Region within the research project "BIOCOMP: development of innovative biocompetition strategies for the safety of PDO cheeses and meats and traditional at the marketing stage (RELOBIOCOMP)" istex:D7D61ABF0F79C515FD5D4CDD0F06D9FE412EA7DD ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0145-8892 1745-4549 |
DOI: | 10.1111/jfpp.12602 |