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Qi Q, Huang J, Zhou R, Jin Y, Wu C. Abating biogenic amines and improving the flavor profile of Cantonese soy sauce via co-culturing Tetragenococcus halophilus and Zygosaccharomyces rouxii. Food Microbiol 2022; 106:104056. [DOI: 10.1016/j.fm.2022.104056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/02/2022] [Accepted: 05/07/2022] [Indexed: 12/14/2022]
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Moniente M, Botello-Morte L, García-Gonzalo D, Pagán R, Ontañón I. Analytical strategies for the determination of biogenic amines in dairy products. Compr Rev Food Sci Food Saf 2022; 21:3612-3646. [PMID: 35726745 DOI: 10.1111/1541-4337.12980] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 04/08/2022] [Accepted: 04/30/2022] [Indexed: 12/18/2022]
Abstract
Biogenic amines (BA) are mainly produced by the decarboxylation of amino acids by enzymes from microorganisms that emerge during food fermentation or due to incorrectly applied preservation processes. The presence of these compounds in food can lead to a series of negative effects on human health. To prevent the ingestion of high amounts of BA, their concentration in certain foods needs to be controlled. Although maximum legal levels have not yet been established for dairy products, potential adverse effects have given rise to a substantial number of analytical and microbiological studies: they report concentrations ranging from a few mg/kg to several g/kg. This article provides an overview of the analytical methods for the determination of biogenic amines in dairy products, with particular focus on the most recent and/or most promising advances in this field. We not only provide a summary of analytical techniques but also list the required sample pretreatments. Since high performance liquid chromatography with derivatization is the most widely used method, we describe it in greater detail, including a comparison of derivatizing agents. Further alternative techniques for the determination of BA are likewise described. The use of biosensors for BA in dairy products is emerging, and current results are promising; this paper thus also features a section on the subject. This review can serve as a helpful guideline for choosing the best option to determine BA in dairy products, especially for beginners in the field.
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Affiliation(s)
- Marta Moniente
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2 (Universidad de Zaragoza-CITA), Zaragoza, Spain
| | - Laura Botello-Morte
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2 (Universidad de Zaragoza-CITA), Zaragoza, Spain
| | - Diego García-Gonzalo
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2 (Universidad de Zaragoza-CITA), Zaragoza, Spain
| | - Rafael Pagán
- Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2 (Universidad de Zaragoza-CITA), Zaragoza, Spain
| | - Ignacio Ontañón
- Laboratorio de Análisis del Aroma y Enología, Química Analítica, Facultad de Ciencias, Instituto Agroalimentario de Aragón-IA2 (Universidad de Zaragoza-CITA), Zaragoza, Spain
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Fidan H, Esatbeyoglu T, Simat V, Trif M, Tabanelli G, Kostka T, Montanari C, Ibrahim SA, Özogul F. Recent developments of lactic acid bacteria and their metabolites on foodborne pathogens and spoilage bacteria: Facts and gaps. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Roux E, Nicolas A, Valence F, Siekaniec G, Chuat V, Nicolas J, Le Loir Y, Guédon E. The genomic basis of the Streptococcus thermophilus health-promoting properties. BMC Genomics 2022; 23:210. [PMID: 35291951 PMCID: PMC8925076 DOI: 10.1186/s12864-022-08459-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 03/08/2022] [Indexed: 12/20/2022] Open
Abstract
Background Streptococcus thermophilus is a Gram-positive bacterium widely used as starter in the dairy industry as well as in many traditional fermented products. In addition to its technological importance, it has also gained interest in recent years as beneficial bacterium due to human health-promoting functionalities. The objective of this study was to inventory the main health-promoting properties of S. thermophilus and to study their intra-species diversity at the genomic and genetic level within a collection of representative strains. Results In this study various health-related functions were analyzed at the genome level from 79 genome sequences of strains isolated over a long time period from diverse products and different geographic locations. While some functions are widely conserved among isolates (e.g., degradation of lactose, folate production) suggesting their central physiological and ecological role for the species, others including the tagatose-6-phosphate pathway involved in the catabolism of galactose, and the production of bioactive peptides and gamma-aminobutyric acid are strain-specific. Most of these strain-specific health-promoting properties seems to have been acquired via horizontal gene transfer events. The genetic basis for the phenotypic diversity between strains for some health related traits have also been investigated. For instance, substitutions in the galK promoter region correlate with the ability of some strains to catabolize galactose via the Leloir pathway. Finally, the low occurrence in S. thermophilus genomes of genes coding for biogenic amine production and antibiotic resistance is also a contributing factor to its safety status. Conclusions The natural intra-species diversity of S. thermophilus, therefore, represents an interesting source for innovation in the field of fermented products enriched for healthy components that can be exploited to improve human health. A better knowledge of the health-promoting properties and their genomic and genetic diversity within the species may facilitate the selection and application of strains for specific biotechnological and human health-promoting purpose. Moreover, by pointing out that a substantial part of its functional potential still defies us, our work opens the way to uncover additional health-related functions through the intra-species diversity exploration of S. thermophilus by comparative genomics approaches. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08459-y.
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Affiliation(s)
- Emeline Roux
- INRAE, Institut Agro, STLO, Rennes, France.,Université de Lorraine, CALBINOTOX, Nancy, France.,Université de Rennes, INRIA, Campus de Beaulieu, Rennes, France
| | | | | | - Grégoire Siekaniec
- INRAE, Institut Agro, STLO, Rennes, France.,Université de Rennes, INRIA, Campus de Beaulieu, Rennes, France
| | | | - Jacques Nicolas
- Université de Rennes, INRIA, Campus de Beaulieu, Rennes, France
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Botello-Morte L, Moniente M, Gil-Ramírez Y, Virto R, García-Gonzalo D, Pagán R. Identification by means of molecular tools of the microbiota responsible for the formation of histamine accumulated in commercial cheeses in Spain. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108595] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Moniente M, García‐Gonzalo D, Ontañón I, Pagán R, Botello‐Morte L. Histamine accumulation in dairy products: Microbial causes, techniques for the detection of histamine‐producing microbiota, and potential solutions. Compr Rev Food Sci Food Saf 2021; 20:1481-1523. [DOI: 10.1111/1541-4337.12704] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 12/01/2020] [Accepted: 12/04/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Marta Moniente
- Departamento de Producción Animal y Ciencia de los Alimentos Facultad de Veterinaria, Instituto Agroalimentario de Aragón‐IA2 (Universidad de Zaragoza‐CITA) Zaragoza Spain
| | - Diego García‐Gonzalo
- Departamento de Producción Animal y Ciencia de los Alimentos Facultad de Veterinaria, Instituto Agroalimentario de Aragón‐IA2 (Universidad de Zaragoza‐CITA) Zaragoza Spain
| | - Ignacio Ontañón
- Laboratorio de Análisis del Aroma y Enología, Química Analítica Facultad de Ciencias, Instituto Agroalimentario de Aragón‐IA2 (Universidad de Zaragoza‐CITA) Zaragoza Spain
| | - Rafael Pagán
- Departamento de Producción Animal y Ciencia de los Alimentos Facultad de Veterinaria, Instituto Agroalimentario de Aragón‐IA2 (Universidad de Zaragoza‐CITA) Zaragoza Spain
| | - Laura Botello‐Morte
- Departamento de Producción Animal y Ciencia de los Alimentos Facultad de Veterinaria, Instituto Agroalimentario de Aragón‐IA2 (Universidad de Zaragoza‐CITA) Zaragoza Spain
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Kandasamy S, Yoo J, Yun J, Kang HB, Seol KH, Ham JS. Quantitative Analysis of Biogenic Amines in Different Cheese Varieties Obtained from the Korean Domestic and Retail Markets. Metabolites 2021; 11:metabo11010031. [PMID: 33406794 PMCID: PMC7824754 DOI: 10.3390/metabo11010031] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/18/2020] [Accepted: 12/29/2020] [Indexed: 11/16/2022] Open
Abstract
To evaluate the safety and risk assessment of cheese consumption in the Republic of Korea, sixty cheese samples purchased from the farmstead and retails markets (imported) were analyzed for their biogenic amine (BA) contents. The BA profiles and quantities of eight amines (tryptamine, 2-phenylethylamine, putrescine, cadaverine, histamine, tyramine, spermidine, and spermine) were determined using high-performance liquid chromatography (HPLC). Spermine was the only amine detectable in all the samples. The BAs of fresh cheeses from both farmstead and retail markets were mostly undetectable, and comparatively at lower levels (<125 mg/kg) than ripened samples. Putrescine was undetectable in all the domestic ripened cheeses. The sum of BA levels in the imported ripened cheeses of Pecorino Romano (1889.75 mg/kg) and Grana Padano (1237.80 mg/kg) exceeds >1000 mg/kg, of which histamine accounts nearly 86 and 77% of the total levels, respectively. The tolerable limits of the potential toxic amines, histamine and tyramine surpassed in four and three imported ripened samples, respectively. Furthermore, the presence of potentiators (putrescine and cadaverine) together in samples even with a lower level of toxic amines alarms the risk in consumption. Therefore, adoption of strict hygienic practices during the entire chain of cheese production, along with obligatory monitoring and regulation of BA in cheeses seems to be mandatory to ensure the safety of the consumers.
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Affiliation(s)
| | | | | | | | | | - Jun-Sang Ham
- Correspondence: ; Tel.: +82-63-238-7366; Fax: +82-63-238-7397
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Li B, Lu S. The Importance of Amine-degrading Enzymes on the Biogenic Amine Degradation in Fermented Foods: A review. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.09.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Pretorius L, Smith C. The trace aminergic system: a gender-sensitive therapeutic target for IBS? J Biomed Sci 2020; 27:95. [PMID: 32981524 PMCID: PMC7520957 DOI: 10.1186/s12929-020-00688-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 09/15/2020] [Indexed: 02/06/2023] Open
Abstract
Due to a lack of specific or sensitive biomarkers, drug discovery advances have been limited for individuals suffering from irritable bowel syndrome (IBS). While current therapies provide symptomatic relief, inflammation itself is relatively neglected, despite the presence of chronic immune activation and innate immune system dysfunction. Moreover, considering the microgenderome concept, gender is a significant aetiological risk factor. We believe that we have pinpointed a "missing link" that connects gender, dysbiosis, diet, and inflammation in the context of IBS, which may be manipulated as therapeutic target. The trace aminergic system is conveniently positioned at the interface of the gut microbiome, dietary nutrients and by-products, and mucosal immunity. Almost all leukocyte populations express trace amine associated receptors and significant amounts of trace amines originate from both food and the gut microbiota. Additionally, although IBS-specific data are sparse, existing data supports an interpretation in favour of a gender dependence in trace aminergic signalling. As such, trace aminergic signalling may be altered by fluctuations of especially female reproductive hormones. Utilizing a multidisciplinary approach, this review discusses potential mechanisms of actions, which include hyperreactivity of the immune system and aberrant serotonin signalling, and links outcomes to the symptomology clinically prevalent in IBS. Taken together, it is feasible that the additional level of regulation by the trace aminergic system in IBS has been overlooked, until now. As such, we suggest that components of the trace aminergic system be considered targets for future therapeutic action, with the specific focus of reducing oxidative stress and inflammation.
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Affiliation(s)
- Lesha Pretorius
- Department of Physiological Sciences, Stellenbosch University, Stellenbosch Private Bag X1, Stellenbosch, 7062, South Africa
| | - Carine Smith
- Department of Physiological Sciences, Stellenbosch University, Stellenbosch Private Bag X1, Stellenbosch, 7062, South Africa.
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Histamine forming behaviour of bacterial isolates from aged cheese. Food Res Int 2020; 128:108719. [DOI: 10.1016/j.foodres.2019.108719] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 09/25/2019] [Accepted: 09/28/2019] [Indexed: 01/02/2023]
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Alexandraki V, Kazou M, Blom J, Pot B, Papadimitriou K, Tsakalidou E. Comparative Genomics of Streptococcus thermophilus Support Important Traits Concerning the Evolution, Biology and Technological Properties of the Species. Front Microbiol 2019; 10:2916. [PMID: 31956321 PMCID: PMC6951406 DOI: 10.3389/fmicb.2019.02916] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 12/03/2019] [Indexed: 12/24/2022] Open
Abstract
Streptococcus thermophilus is a major starter for the dairy industry with great economic importance. In this study we analyzed 23 fully sequenced genomes of S. thermophilus to highlight novel aspects of the evolution, biology and technological properties of this species. Pan/core genome analysis revealed that the species has an important number of conserved genes and that the pan genome is probably going to be closed soon. According to whole genome phylogeny and average nucleotide identity (ANI) analysis, most S. thermophilus strains were grouped in two major clusters (i.e., clusters A and B). More specifically, cluster A includes strains with chromosomes above 1.83 Mbp, while cluster B includes chromosomes below this threshold. This observation suggests that strains belonging to the two clusters may be differentiated by gene gain or gene loss events. Furthermore, certain strains of cluster A could be further subdivided in subgroups, i.e., subgroup I (ASCC 1275, DGCC 7710, KLDS SM, MN-BM-A02, and ND07), II (MN-BM-A01 and MN-ZLW-002), III (LMD-9 and SMQ-301), and IV (APC151 and ND03). In cluster B certain strains formed one distinct subgroup, i.e., subgroup I (CNRZ1066, CS8, EPS, and S9). Clusters and subgroups observed for S. thermophilus indicate the existence of lineages within the species, an observation which was further supported to a variable degree by the distribution and/or the architecture of several genomic traits. These would include exopolysaccharide (EPS) gene clusters, Clustered Regularly Interspaced Short Palindromic Repeats (CRISPRs)-CRISPR associated (Cas) systems, as well as restriction-modification (R-M) systems and genomic islands (GIs). Of note, the histidine biosynthetic cluster was found present in all cluster A strains (plus strain NCTC12958T) but was absent from all strains in cluster B. Other loci related to lactose/galactose catabolism and urea metabolism, aminopeptidases, the majority of amino acid and peptide transporters, as well as amino acid biosynthetic pathways were found to be conserved in all strains suggesting their central role for the species. Our study highlights the necessity of sequencing and analyzing more S. thermophilus complete genomes to further elucidate important aspects of strain diversity within this starter culture that may be related to its application in the dairy industry.
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Affiliation(s)
- Voula Alexandraki
- Laboratory of Dairy Research, Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece
| | - Maria Kazou
- Laboratory of Dairy Research, Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece
| | - Jochen Blom
- Bioinformatics and Systems Biology, Justus Liebig University Giessen, Giessen, Germany
| | - Bruno Pot
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Department of Bioengineering Sciences (DBIT), Vrije Universiteit Brussel, Brussels, Belgium
| | - Konstantinos Papadimitriou
- Laboratory of Dairy Research, Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece
| | - Effie Tsakalidou
- Laboratory of Dairy Research, Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece
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Barbieri F, Montanari C, Gardini F, Tabanelli G. Biogenic Amine Production by Lactic Acid Bacteria: A Review. Foods 2019; 8:E17. [PMID: 30621071 PMCID: PMC6351943 DOI: 10.3390/foods8010017] [Citation(s) in RCA: 221] [Impact Index Per Article: 44.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 12/18/2018] [Accepted: 01/02/2019] [Indexed: 12/12/2022] Open
Abstract
Lactic acid bacteria (LAB) are considered as the main biogenic amine (BA) producers in fermented foods. These compounds derive from amino acid decarboxylation through microbial activities and can cause toxic effects on humans, with symptoms (headache, heart palpitations, vomiting, diarrhea) depending also on individual sensitivity. Many studies have focused on the aminobiogenic potential of LAB associated with fermented foods, taking into consideration the conditions affecting BA accumulation and enzymes/genes involved in the biosynthetic mechanisms. This review describes in detail the different LAB (used as starter cultures to improve technological and sensorial properties, as well as those naturally occurring during ripening or in spontaneous fermentations) able to produce BAs in model or in real systems. The groups considered were enterococci, lactobacilli, streptococci, lactococci, pediococci, oenococci and, as minor producers, LAB belonging to Leuconostoc and Weissella genus. A deeper knowledge of this issue is important because decarboxylase activities are often related to strains rather than to species or genera. Moreover, this information can help to improve the selection of strains for further applications as starter or bioprotective cultures, in order to obtain high quality foods with reduced BA content.
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Affiliation(s)
- Federica Barbieri
- Interdepartmental Center for Industrial Agri-Food Research, University of Bologna, Cesena 47521, Italy.
| | - Chiara Montanari
- Interdepartmental Center for Industrial Agri-Food Research, University of Bologna, Cesena 47521, Italy.
| | - Fausto Gardini
- Interdepartmental Center for Industrial Agri-Food Research, University of Bologna, Cesena 47521, Italy.
- Department of Agricultural and Food Sciences, University of Bologna, Bologna 40126, Italy.
| | - Giulia Tabanelli
- Interdepartmental Center for Industrial Agri-Food Research, University of Bologna, Cesena 47521, Italy.
- Department of Agricultural and Food Sciences, University of Bologna, Bologna 40126, Italy.
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Oleskin AV, Shenderov BA, Rogovsky VS. Role of Neurochemicals in the Interaction between the Microbiota and the Immune and the Nervous System of the Host Organism. Probiotics Antimicrob Proteins 2018; 9:215-234. [PMID: 28229287 DOI: 10.1007/s12602-017-9262-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This work is concerned with the role of evolutionary conserved substances, neurotransmitters, and neurohormones, within the complex framework of the microbial consortium-immune system-nervous system axis in the human or animal organism. Although the operation of each of these systems per se is relatively well understood, their combined effects on the host organism still await further research. Drawing on recent research on host-produced and microbial low-molecular-weight neurochemicals such as biogenic amines, amino acids, and short-chain fatty acids (SCFAs), we suggest that these mediators form a part of a universal neurochemical "language." It mediates the whole gamut of harmonious and disharmonious interactions between (a) the intestinal microbial consortium, (b) local and systemic immune cells, and (c) the central and peripheral nervous system. Importantly, the ongoing microbiota-host interactivity is bidirectional. We present evidence that a large number of microbially produced low-molecular-weight compounds are identical or homologous to mediators that are synthesized by immune or nervous cells and, therefore, can bind to the corresponding host receptors. In addition, microbial cells specifically respond to host-produced neuromediators/neurohormones because they have adapted to them during the course of many millions of years of microbiota-host coevolution. We emphasize that the terms "microbiota" and "microbial consortium" are to be used in the broadest sense, so as to include, apart from bacteria, also eukaryotic microorganisms. These are exemplified by the mycobiota whose role in the microbial consortium-immune system-nervous system axis researchers are only beginning to elucidate. In light of the above, it is imperative to reform the current strategies of using probiotic microorganisms and their metabolites for treating and preventing dysbiosis-related diseases. The review demonstrates, in the example of novel probiotics (psychobiotics), that many target-oriented probiotic preparations produce important side effects on a wide variety of processes in the host organism. In particular, we should take into account probiotics' capacity to produce mediators that can considerably modify the operation of the microecological, immune, and nervous system of the human organism.
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Affiliation(s)
- Alexander V Oleskin
- General Ecology Department, Biology School, Moscow State University, Vorobiev Hills, Moscow, 119991, Russia.
| | - Boris A Shenderov
- Gabrichevsky Research Institute of Epidemiology and Microbiology, Moscow, Russia
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Averina OV, Danilenko VN. Human intestinal microbiota: Role in development and functioning of the nervous system. Microbiology (Reading) 2017. [DOI: 10.1134/s0026261717010040] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Ladero V, Gómez-Sordo C, Sánchez-Llana E, del Rio B, Redruello B, Fernández M, Martín MC, Alvarez MA. Q69 (an E. faecalis-Infecting Bacteriophage) As a Biocontrol Agent for Reducing Tyramine in Dairy Products. Front Microbiol 2016; 7:445. [PMID: 27092117 PMCID: PMC4820458 DOI: 10.3389/fmicb.2016.00445] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 03/18/2016] [Indexed: 11/13/2022] Open
Abstract
Biogenic amines (BAs) are low molecular weight nitrogenous compounds with biological activity, formed from amino acids by decarboxylation. BAs are naturally present in all living organisms playing essential roles. However, their accumulation in food through the metabolic activity of certain microorganisms constitutes a toxicological hazard. Among foods, cheeses accumulate some of the highest concentrations of BAs since they provide an ideal environment for their accumulation. Most of the methods proposed for reducing BAs in cheese, such as milk pasteurization, have not only failed to completely solve the problem, they also affect non-BA producing lactic acid bacteria, i.e., the bacteria that participate in the development of the organoleptic characteristics of cheese. Novel technologies specifically targeted against BA producers are therefore needed to control BA accumulation. Bacteriophages have been proposed as agents for specifically controlling the presence of foodborne pathogens in food. Due to its specificity, they could be used as a biotechnological tool targeted to reduce the population of BA-producing bacteria. The present work reports the isolation, from cheese, and the characterization of bacteriophage Q69, which infects specifically Enterococcus faecalis, the species mainly responsible of the accumulation of the BA tyramine in foods. Furthermore, its capacity to reduce the accumulation of tyramine in different conditions -including a model cheese- was proven. The obtained results open up the possibility of use bacteriophages to prevent BA accumulation in fermented foods.
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Affiliation(s)
- Victor Ladero
- Department of Technology and Biotechnology of Dairy Products, Dairy Research Institute, Instituto de Productos Lácteos de Asturias – Consejo Superior de Investigaciones Científicas (IPLA–CSIC)Villaviciosa, Spain
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Oleskin AV, El’-Registan GI, Shenderov BA. Role of neuromediators in the functioning of the human microbiota: “Business talks” among microorganisms and the microbiota-host dialogue. Microbiology (Reading) 2016. [DOI: 10.1134/s0026261716010082] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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17
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Tabanelli G, Montanari C, Bargossi E, Lanciotti R, Gatto V, Felis G, Torriani S, Gardini F. Control of tyramine and histamine accumulation by lactic acid bacteria using bacteriocin forming lactococci. Int J Food Microbiol 2014; 190:14-23. [PMID: 25173915 DOI: 10.1016/j.ijfoodmicro.2014.08.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 08/06/2014] [Accepted: 08/14/2014] [Indexed: 10/24/2022]
Abstract
The aim of this study was to evaluate the competitive effects of three bacteriocin producing strains of Lactococcus lactis subsp. lactis against two aminobiogenic lactic acid bacteria, i.e. the tyramine producing strain Enterococcus faecalis EF37 and the histamine producing strain Streptococcus thermophilus PRI60, inoculated at different initial concentrations (from 2 to 6 log cfu/ml). The results showed that the three L. lactis subsp. lactis strains were able to produce bacteriocins: in particular, L. lactis subsp. lactis VR84 and EG46 produced, respectively, nisin Z and lacticin 481, while for the strains CG27 the bacteriocin has not been yet identified, even if its peptidic nature has been demonstrated. The co-culture of E. faecalis EF37 in combination with lactococci significantly reduced the growth potential of this aminobiogenic strain, both in terms of growth rate and maximum cell concentration, depending on the initial inoculum level of E. faecalis. Tyramine accumulation was strongly reduced when E. faecalis EF37 was inoculated at 2 log cfu/ml and, to a lesser extent, at 3 log cfu/ml, as a result of a lower cell load of the aminobiogenic strain. All the lactococci were more efficient in inhibiting streptococci in comparison with E. faecalis EF37; in particular, L. lactis subsp. lactis VR84 induced the death of S. thermophilus PRI60 and allowed the detection of histamine traces only at higher streptococci inoculum levels (5-6 log cfu/ml). The other two lactococcal strains did not show a lethal action against S. thermophilus PRI60, but were able to reduce its growth extent and histamine accumulation, even if L. lactis subsp. lactis EG46 was less effective when the initial streptococci concentration was 5 and 6 log cfu/ml. This preliminary study has clarified some aspects regarding the ratio between bacteriocinogenic strains and aminobiogenic strains with respect to the possibility to accumulate BA and has also showed that different bacteriocins can have different effects on BA production on the same strain. This knowledge is essentially aimed to use bacteriocinogenic lactococci as a predictable strategy against aminobiogenic bacteria present in cheese or other fermented foods.
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Affiliation(s)
- Giulia Tabanelli
- Centro Interdipartimentale di Ricerca Industriale Agroalimentare, Università degli Studi di Bologna, Sede di Cesena, Piazza Goidanich 60, 47521, Cesena (FC), Italy
| | - Chiara Montanari
- Centro Interdipartimentale di Ricerca Industriale Agroalimentare, Università degli Studi di Bologna, Sede di Cesena, Piazza Goidanich 60, 47521, Cesena (FC), Italy
| | - Eleonora Bargossi
- Dipartimento di Scienze e Tecnologie Agro-alimentari, Università degli Studi di Bologna, Sede di Cesena, Piazza Goidanich 60, 47521, Cesena (FC), Italy
| | - Rosalba Lanciotti
- Centro Interdipartimentale di Ricerca Industriale Agroalimentare, Università degli Studi di Bologna, Sede di Cesena, Piazza Goidanich 60, 47521, Cesena (FC), Italy; Dipartimento di Scienze e Tecnologie Agro-alimentari, Università degli Studi di Bologna, Sede di Cesena, Piazza Goidanich 60, 47521, Cesena (FC), Italy
| | - Veronica Gatto
- Dipartimento di Biotecnologie, Università di Verona, Strada Le Grazie 8, 37134, Verona (VR), Italy
| | - Giovanna Felis
- Dipartimento di Biotecnologie, Università di Verona, Strada Le Grazie 8, 37134, Verona (VR), Italy
| | - Sandra Torriani
- Dipartimento di Biotecnologie, Università di Verona, Strada Le Grazie 8, 37134, Verona (VR), Italy
| | - Fausto Gardini
- Centro Interdipartimentale di Ricerca Industriale Agroalimentare, Università degli Studi di Bologna, Sede di Cesena, Piazza Goidanich 60, 47521, Cesena (FC), Italy; Dipartimento di Scienze e Tecnologie Agro-alimentari, Università degli Studi di Bologna, Sede di Cesena, Piazza Goidanich 60, 47521, Cesena (FC), Italy.
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