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Investigating Safety and Technological Traits of a Leading Probiotic Species:

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Journal Nutrients
Date 2024 Jul 27
PMID 39064654
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Abstract

spp. are genetically close lactic acid bacteria species widely used in fermented products for their technological properties as well as their proven beneficial effects on human and animal health. This study, the first to include such a large collection of heterogeneous isolates (121) obtained from international collections belonging to , aimed to characterize the safety traits and technological properties of this important probiotic species, also making comparisons with other genetically related species, such as and . These strains were isolated from a variety of heterogeneous sources, including dairy products, sourdoughs, wine, must, and human body excreta. After a preliminary molecular characterization using repetitive element palindromic PCR (Rep-PCR), Random Amplification of Polymorphic DNA (RAPD), and Sau-PCR, particular attention was paid to safety traits, evaluating antibiotic resistance profiles, biogenic amine (BA) production, the presence of genes related to the production of ethyl carbamate and diaminobenzidine (DAB), and multicopper oxidase activity (MCO). The technological characteristics of the strains, such as the capability to grow at different NaCl and ethanol concentrations and different pH values, were also investigated, as well as the production of bacteriocins. From the obtained results, it was observed that strains isolated from the same type of matrix often shared similar genetic characteristics. However, phenotypic traits were strain-specific. This underscored the vast potential of the different strains to be used for various purposes, from probiotics to bioprotective and starter cultures for food and feed production, highlighting the importance of conducting comprehensive evaluations to identify the most suitable strain for each purpose with the final aim of promoting human health.

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References
1.
Comi G, Urso R, Iacumin L, Rantsiou K, Cattaneo P, Cantoni C . Characterisation of naturally fermented sausages produced in the North East of Italy. Meat Sci. 2011; 69(3):381-92. DOI: 10.1016/j.meatsci.2004.08.007. View

2.
Suzzi G, Gardini F . Biogenic amines in dry fermented sausages: a review. Int J Food Microbiol. 2003; 88(1):41-54. DOI: 10.1016/s0168-1605(03)00080-1. View

3.
Naila A, Flint S, Fletcher G, Bremer P, Meerdink G . Control of biogenic amines in food--existing and emerging approaches. J Food Sci. 2011; 75(7):R139-50. PMC: 2995314. DOI: 10.1111/j.1750-3841.2010.01774.x. View

4.
Landete J, de Las Rivas B, Marcobal A, Munoz R . Molecular methods for the detection of biogenic amine-producing bacteria on foods. Int J Food Microbiol. 2007; 117(3):258-69. DOI: 10.1016/j.ijfoodmicro.2007.05.001. View

5.
Charteris W, Kelly P, Morelli L, Collins J . Antibiotic susceptibility of potentially probiotic Lactobacillus species. J Food Prot. 1999; 61(12):1636-43. DOI: 10.4315/0362-028x-61.12.1636. View