Enterococci from Raw-Milk Cheeses: Current Knowledge on Safety, Technological, and Probiotic Concerns

The present study is focused on the safety, technological characteristics, and probiotic evaluation of <i>Enterococcus</i> species from different artisanal raw milk dairy products, mainly cheeses with ripening. Apart from proteolytic and lipolytic activities, most enterococci show the ab...

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Main Authors: Amarela Terzić-Vidojević, Katarina Veljović, Nikola Popović, Maja Tolinački, Nataša Golić
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/10/11/2753
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author Amarela Terzić-Vidojević
Katarina Veljović
Nikola Popović
Maja Tolinački
Nataša Golić
author_facet Amarela Terzić-Vidojević
Katarina Veljović
Nikola Popović
Maja Tolinački
Nataša Golić
author_sort Amarela Terzić-Vidojević
collection DOAJ
description The present study is focused on the safety, technological characteristics, and probiotic evaluation of <i>Enterococcus</i> species from different artisanal raw milk dairy products, mainly cheeses with ripening. Apart from proteolytic and lipolytic activities, most enterococci show the ability to metabolize citrate and convert it to various aromatic compounds. Long-ripened cheeses therefore have a specific flavor that makes them different from cheeses produced from thermally treated milk with commercial starter cultures. In addition, enterococci are producers of bacteriocins effective against spoilage and pathogenic bacteria, so they can be used as food preservatives. However, the use of enterococci in the dairy industry should be approached with caution. Although originating from food, enterococci strains may carry various virulence factors and antibiotic-resistance genes and can have many adverse effects on human health. Still, despite their controversial status, the use of enterococci in the food industry is not strictly regulated since the existence of these so-called desirable and undesirable traits in enterococci is a strain-dependent characteristic. To be specific, the results of many studies showed that there are some enterococci strains that are safe for use as starter cultures or as probiotics since they do not carry virulence factors and antibiotic-resistance genes. These strains even exhibit strong health-promoting effects such as stimulation of the immune response, anti-inflammatory activity, hypocholesterolemic action, and usefulness in prevention/treatment of some diseases.
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spelling doaj.art-81870635bfb54a20be841b623dfe4ba32023-11-22T23:21:30ZengMDPI AGFoods2304-81582021-11-011011275310.3390/foods10112753Enterococci from Raw-Milk Cheeses: Current Knowledge on Safety, Technological, and Probiotic ConcernsAmarela Terzić-Vidojević0Katarina Veljović1Nikola Popović2Maja Tolinački3Nataša Golić4Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, SerbiaInstitute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, SerbiaInstitute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, SerbiaInstitute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, SerbiaInstitute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, SerbiaThe present study is focused on the safety, technological characteristics, and probiotic evaluation of <i>Enterococcus</i> species from different artisanal raw milk dairy products, mainly cheeses with ripening. Apart from proteolytic and lipolytic activities, most enterococci show the ability to metabolize citrate and convert it to various aromatic compounds. Long-ripened cheeses therefore have a specific flavor that makes them different from cheeses produced from thermally treated milk with commercial starter cultures. In addition, enterococci are producers of bacteriocins effective against spoilage and pathogenic bacteria, so they can be used as food preservatives. However, the use of enterococci in the dairy industry should be approached with caution. Although originating from food, enterococci strains may carry various virulence factors and antibiotic-resistance genes and can have many adverse effects on human health. Still, despite their controversial status, the use of enterococci in the food industry is not strictly regulated since the existence of these so-called desirable and undesirable traits in enterococci is a strain-dependent characteristic. To be specific, the results of many studies showed that there are some enterococci strains that are safe for use as starter cultures or as probiotics since they do not carry virulence factors and antibiotic-resistance genes. These strains even exhibit strong health-promoting effects such as stimulation of the immune response, anti-inflammatory activity, hypocholesterolemic action, and usefulness in prevention/treatment of some diseases.https://www.mdpi.com/2304-8158/10/11/2753<i>Enterococcus</i> spp.raw-milk cheesessafetytechnological characteristicsprobiotic properties
spellingShingle Amarela Terzić-Vidojević
Katarina Veljović
Nikola Popović
Maja Tolinački
Nataša Golić
Enterococci from Raw-Milk Cheeses: Current Knowledge on Safety, Technological, and Probiotic Concerns
Foods
<i>Enterococcus</i> spp.
raw-milk cheeses
safety
technological characteristics
probiotic properties
title Enterococci from Raw-Milk Cheeses: Current Knowledge on Safety, Technological, and Probiotic Concerns
title_full Enterococci from Raw-Milk Cheeses: Current Knowledge on Safety, Technological, and Probiotic Concerns
title_fullStr Enterococci from Raw-Milk Cheeses: Current Knowledge on Safety, Technological, and Probiotic Concerns
title_full_unstemmed Enterococci from Raw-Milk Cheeses: Current Knowledge on Safety, Technological, and Probiotic Concerns
title_short Enterococci from Raw-Milk Cheeses: Current Knowledge on Safety, Technological, and Probiotic Concerns
title_sort enterococci from raw milk cheeses current knowledge on safety technological and probiotic concerns
topic <i>Enterococcus</i> spp.
raw-milk cheeses
safety
technological characteristics
probiotic properties
url https://www.mdpi.com/2304-8158/10/11/2753
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