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Decadt H, Weckx S, De Vuyst L. The microbial and metabolite composition of Gouda cheese made from pasteurized milk is determined by the processing chain. Int J Food Microbiol 2024; 412:110557. [PMID: 38237418 DOI: 10.1016/j.ijfoodmicro.2024.110557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/26/2023] [Accepted: 01/01/2024] [Indexed: 01/28/2024]
Abstract
Gouda cheeses of different production batches and ripening times often differ in metabolite composition, which may be due to the starter culture mixture applied or the growth of non-starter lactic acid bacteria (NSLAB) upon maturation. Therefore, a single Gouda cheese production batch was systematically investigated from the thermized milk to the mature cheeses, ripened for up to 100 weeks, to identify the main bacterial species and metabolites and their dynamics during the whole production and ripening. As this seemed to be starter culture strain- and NSLAB-dependent, it requested a detailed, longitudinal, and quantitative investigation. Hereto, microbial colony enumeration, high-throughput full-length 16S rRNA gene sequencing, and a metabolomic approach were combined. Culture-dependently, Lactococcus lactis was the most abundant species from its addition as part of the starter culture up to the first two months of cheese ripening. Afterward, the NSLAB Lacticaseibacillus paracasei became the main species during ripening. The milk was a possible inoculation source for the latter species, despite pasteurization. Culture-independently, the starter LAB Lactococcus cremoris and Lc. lactis were the most abundant species in the cheese core throughout the whole fermentation and ripening phases up to 100 weeks. The cheese rind from 40 until 100 weeks of ripening was characterized by a high relative abundance of the NSLAB Tetragenococcus halophilus and Loigolactobacillus rennini, which both came from the brine. These species were linked with the production of the biogenic amines cadaverine and putrescine. The most abundant volatile organic compound was acetoin, an indicator of citrate and lactose fermentation during the production day, whereas the concentrations of free amino acids were an indicator of the ripening time.
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Affiliation(s)
- Hannes Decadt
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Stefan Weckx
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Luc De Vuyst
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium.
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2
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Klementová L, Purevdorj K, Butor I, Jančová P, Bábková D, Buňka F, Buňková L. Reduction of histamine, putrescine and cadaverine by the bacteria Lacticaseibacillus casei depending on selected factors in the real condition of the dairy product. Food Microbiol 2024; 117:104391. [PMID: 37919013 DOI: 10.1016/j.fm.2023.104391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 09/15/2023] [Accepted: 09/22/2023] [Indexed: 11/04/2023]
Abstract
One way to effectively reduce the number of biogenic amines (BAs) in food is through enzymatic reduction using bacteria, such as lactic acid bacteria. This study focuses on the ability of the bacterial strain Lacticaseibacillus casei CCDM 198 to reduce the number of three important BAs (histamine, putrescine and cadaverine) over time, depending on different conditions (temperature and pH) in vitro and for the real dairy product - skimmed milk. The obtained results show that the studied strain significantly (P < 0.05) affects the number of individual amines, and the content of all amines has a decreasing character compared to the initial relative content of BAs at time zero. Furthermore, a statistical dependence (P < 0.05) of the rate of amine degradation on the combination of investigated factors was demonstrated. The presence and the activity of multicopper oxidase enzyme was also detected in this bacterial strain. This is the first known publication demonstrating multicopper oxidase activity in Lacticaseibacillus casei CCDM 198. Moreover, the studied strain is able to reduce the tested BAs in skimmed milk and would be a good candidate for degrading these toxic compounds in other dairy products, such as cheese. These findings could significantly enhance the food safety of dairy products.
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Affiliation(s)
- Lucie Klementová
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Nad Ovčírnou 3685, 760 01, Zlín, Czech Republic
| | - Khatantuul Purevdorj
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Nad Ovčírnou 3685, 760 01, Zlín, Czech Republic.
| | - Irena Butor
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Nad Ovčírnou 3685, 760 01, Zlín, Czech Republic
| | - Petra Jančová
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Nad Ovčírnou 3685, 760 01, Zlín, Czech Republic
| | - Dagmar Bábková
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Nad Ovčírnou 3685, 760 01, Zlín, Czech Republic
| | - František Buňka
- Food Quality and Safety Research Laboratory, Department of Logistics, Faculty of Military Leadership, University of Defence, Kounicova 65, 662 10, Brno, Czech Republic
| | - Leona Buňková
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Nad Ovčírnou 3685, 760 01, Zlín, Czech Republic
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Bacillus subtilis K-C3 as Potential Starter to Improve Nutritional Components and Quality of Shrimp Paste and Corresponding Changes during Storage at Two Alternative Temperatures. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9020107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
This study aimed to evaluate Bacillus subtilis K-C3 as a potential starter to improve shrimp paste quality, particularly in terms of nutritional profiles. The quality/characteristic changes of shrimp paste with and without inoculation during storage for 18 months when stored at low (4 °C) and room (28 °C) temperature were also investigated. The results found that this B. strain increased essential amino acids (EAAs) and polyunsaturated fatty acids (PUFAs), as well as antioxidant properties including 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2-azino-bis (3-ethylbenzthiazoline-6-sulphonic acid) (ABTS) radical scavenging activities, ferric reducing antioxidant power (FRAP) and metal chelating activity in the experimental shrimp paste compared to traditional shrimp paste (p < 0.05). The faster development of some characteristics of inoculated samples were also noted, as indicated by the higher total viable count (TVC), formal and amino nitrogen content, pH, and browning index, as well as biogenic amines, indicating different quality which may be further responsible for different product acceptability. The changes in quality/characteristics of shrimp paste were observed throughout the 18 months of storage. Shrimp paste stored at room temperature accelerated those changes faster than samples stored at low temperature (p < 0.05); however, the quality of them still meets the product’s standard even storage for 18 months. Meanwhile, shrimp paste stored at a low temperature had an amount of yeast and mold over the limitation (>3.00 log CFU/g), indicating food spoilage. Thus, storage at room temperature can extend this product’s shelf-life better than storage at low temperature. Overall, inoculation with B. subtilis K-C3, in conjunction with storage at room temperature, resulted in quality improvement and maintenance in shrimp paste, particularly in the aspects of nutritional profiles and safety concern, as the shrimp paste should have a shelf-life of at least 18 months.
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Effect of stress factors on the production of biogenic amines by lactic acid bacteria isolated from fermented Mexican foods (cheese and beer). Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Wireless portable bioelectronic nose device for multiplex monitoring toward food freshness/spoilage. Biosens Bioelectron 2022; 215:114551. [PMID: 35839622 DOI: 10.1016/j.bios.2022.114551] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 06/22/2022] [Accepted: 07/05/2022] [Indexed: 01/07/2023]
Abstract
Monitoring food freshness/spoilage is important to ensure food quality and safety. Current methods of food quality monitoring are mostly time-consuming and labor intensive processes that require massive analytical equipment. In this study, we developed a portable bioelectronic nose (BE-nose) integrated with trace amine-associated receptor (TAAR) nanodiscs (NDs), allowing food quality monitoring via the detection of food spoilage indicators, including the biogenic amines cadaverine (CV) and putrescine (PT). The olfactory receptors TAAR13c and TAAR13d, which have specific affinities for CV and PT, were produced and successfully reconstituted in ND structures. TAAR13 NDs BE-nose-based side-gated field-effect transistor (SG-FET) system was constructed by utilizing a graphene micropattern (GM) into which two types of olfactory NDs (TAAR13c ND and TAAR13d ND) were introduced, and this system showed ultrahigh sensitivity for a limit of detection (LOD) of 1 fM for CV and PT. Moreover, the binding affinities between the TAAR13 NDs and the indicators were confirmed by a tryptophan fluorescence quenching assay and biosimulations, in which the specific binding site was confirmed. Gas-phase indicators were detected by the TAAR13 NDs BE-nose platform, and the LODs for CV and PT were confirmed to be 26.48 and 7.29 ppb, respectively. In addition, TAAR13 NDs BE-nose was fabricated with commercial gas sensors as a portable platform for the measurement of NH3 and H2S, multiplexed monitoring was achieved with similar performance, and the change ratio of the indicators was observed in a real sample. The integration of commercial gas sensors on a BE-nose enhanced the accuracy and reliability for the quality monitoring of real food samples. These results indicate that the portable TAAR13 NDs BE-nose can be used to monitor CV and PT over a wide range of concentrations, therefore, the electronic nose platform can be utilized for monitoring the freshness/spoilage step in various foods.
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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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Ryser LT, Arias-Roth E, Berthoud H, Delbès-Paus C, Chassard C, Bruggmann R, Irmler S. Cadaverine, putrescine, and histamine formation of Morganella morganii in raclette-type cheese. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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8
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In-situ food spoilage monitoring using a wireless chemical receptor-conjugated graphene electronic nose. Biosens Bioelectron 2021; 200:113908. [PMID: 34972042 DOI: 10.1016/j.bios.2021.113908] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 11/23/2021] [Accepted: 12/20/2021] [Indexed: 11/20/2022]
Abstract
Monitoring food spoilage is one of the most effective methods for preventing food poisoning caused by biogenic amines or microbes. Therefore, various analytical techniques have been introduced to detect low concentrations of cadaverine (CV) and putrescine (PT), which are representative biogenic polyamines involved in food spoilage (5-8 ppm at the stage of initial decomposition after storage for 5 days at 5 °C and 17-186 ppm at the stage of advanced decomposition after storage for 7 days at 5 °C). Although previous methods showed selective CV and PT detection even at low concentrations, the use of these methods remains challenging in research areas that require in-situ, real-time, on-site monitoring. In this study, we demonstrated for the first time an in-situ high-performance chemical receptor-conjugated graphene electronic nose (CRGE-nose) whose limits of detection (LODs), 27.04 and 7.29 ppb, for CV and PT are up to 102 times more sensitive than those of conventional biogenic amine sensors. Specifically, the novel chemical receptors 2,7-bis(3-morpholinopropyl)benzo[lmn][3,8] phenanthroline-1,3,6,8(2H,7H)-tetraone (NaPhdiMor (NPM)) and 2,7-bis(2-((3-morpholinopropyl)amino)ethyl)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone (NaPhdiEtAmMor (NPEAM)) were designed on the basis of density functional theory (DFT) calculations, and their interaction mechanism was characterized by a DFT 3D simulation. Interestingly, the CRGE-nose was connected on a micro sim chip substrate via wire bonding and then integrated into wireless portable devices, resulting in a cost-effective, high-performance prototype CRGE-nose device capable of on-site detection. The portable CRGE-nose can be used for in-situ monitoring of CV and PT concentration changes as low as 27.04 and 7.29 ppb in real meats such as pork, beef, lamb and chicken.
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9
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Reduction of biogenic amine content in Dutch-type cheese as affected by the applied adjunct culture. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Yu Z, Fu W, Fu Y, Tang W, Li R, Li X. The biogenic amine-producing bacteria from craft beer and their kinetic analysis between growth characteristics and biogenic amine formation in beer. J Food Sci 2021; 86:4991-5003. [PMID: 34699076 DOI: 10.1111/1750-3841.15934] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 09/10/2021] [Accepted: 09/14/2021] [Indexed: 11/29/2022]
Abstract
Craft beer because of its fresh flavor, unique taste, and rich nutrition is becoming more popular to consumers. Compared with industry beer, craft beer is often nonfiltered and nonpasteurized, for this reason, it has a short shelf life and is more susceptible to microbial spoilage, which may cause the quality deterioration of craft beer and the formation of biogenic amine as a harmful factor for consumer's health. In this study, the 23 beer-spoilage bacteria were isolated from craft beer, which were identified as 15 Lactobacillus (L.) brevis, 3 L. plantarum, 1 L. parabuchneri, 2 L. paracasei, and 2 Pediococcus damnosus. Among 23 beer-spoilage isolates, 20 representatives were able to form tyramine, histamine, putrescine, cadaverine, and/or tryptamine in MRS broth. The nine Lactobacillus strains were incubated in beer and produced tyramine, histamine, putrescine, cadaverine, and/or tryptamine during beer storage process. Logistic and Gompertz model could be adopted to respectively describe the kinetics of microorganism growth and biogenic amine formation. The relationship between the biogenic amines and biomass was simulated by Luedeking-Piret model very well, and showed that the formation of biogenic amine was mainly bacteria growth-associated in beer. These findings may be helpful for finding the preventive measures to control biogenic amine formation and for enhancing the safety of craft beer. PRACTICAL APPLICATION: The selection of the biogenic amine-producing spoilage bacteria from craft beer and the investigation their kinetics of the growth and biogenic amines production under beer environmental conditions was very helpful for finding preventive measures to eliminate or reduce biogenic amine formation and for appropriate increase in food safety.
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Affiliation(s)
- Zhimin Yu
- School of Biotechnology Engineering, Dalian Polytechnic University, Dalian, China
| | - Wei Fu
- School of Biotechnology Engineering, Dalian Polytechnic University, Dalian, China
| | - Yang Fu
- School of Biotechnology Engineering, Dalian Polytechnic University, Dalian, China
| | - Wenzhu Tang
- School of Biotechnology Engineering, Dalian Polytechnic University, Dalian, China
| | - Rong Li
- School of Biotechnology Engineering, Dalian Polytechnic University, Dalian, China
| | - Xianzhen Li
- School of Biotechnology Engineering, Dalian Polytechnic University, Dalian, China
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Moradi M, Omer AK, Razavi R, Valipour S, Guimarães JT. The relationship between milk somatic cell count and cheese production, quality and safety: A review. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2020.104884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Dreier M, Berthoud H, Shani N, Wechsler D, Junier P. Development of a High-Throughput Microfluidic qPCR System for the Quantitative Determination of Quality-Relevant Bacteria in Cheese. Front Microbiol 2021; 11:619166. [PMID: 33488561 PMCID: PMC7817891 DOI: 10.3389/fmicb.2020.619166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/08/2020] [Indexed: 11/13/2022] Open
Abstract
The composition of the cheese microbiome has an important impact on the sensorial quality and safety of cheese. Therefore, much effort has been made to investigate the microbial community composition of cheese. Quantitative real-time polymerase chain reaction (qPCR) is a well-established method for detecting and quantifying bacteria. High-throughput qPCR (HT-qPCR) using microfluidics brings further advantages by providing fast results and by decreasing the cost per sample. We have developed a HT-qPCR approach for the rapid and cost-efficient quantification of microbial species in cheese by designing qPCR assays targeting 24 species/subspecies commonly found in cheese. Primer pairs were evaluated on the Biomark (Fluidigm) microfluidic HT-qPCR system using DNA from single strains and from artificial mock communities. The qPCR assays worked efficiently under identical PCR conditions, and the validation showed satisfying inclusivity, exclusivity, and amplification efficiencies. Preliminary results obtained from the HT-qPCR analysis of DNA samples of model cheeses made with the addition of adjunct cultures confirmed the potential of the microfluidic HT-qPCR system to screen for selected bacterial species in the cheese microbiome. HT-qPCR data of DNA samples of two downgraded commercial cheeses showed that this approach provides valuable information that can help to identify the microbial origin of quality defects. This newly developed HT-qPCR system is a promising approach that will allow simultaneous monitoring of quality-relevant species in fermented foods with high bacterial diversity, thereby opening up new perspectives for the control and assurance of high product quality.
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Affiliation(s)
- Matthias Dreier
- Agroscope, Bern, Switzerland.,Laboratory of Microbiology, University of Neuchâtel, Neuchâtel, Switzerland
| | | | | | | | - Pilar Junier
- Laboratory of Microbiology, University of Neuchâtel, Neuchâtel, Switzerland
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Garbowska M, Pluta A, Berthold-Pluta A. Contents of Functionally Bioactive Peptides, Free Amino Acids, and Biogenic Amines in Dutch-Type Cheese Models Produced with Different Lactobacilli. MOLECULES (BASEL, SWITZERLAND) 2020; 25:molecules25225465. [PMID: 33266479 PMCID: PMC7700546 DOI: 10.3390/molecules25225465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 12/05/2022]
Abstract
Cheese ripening involves a number of biochemical processes, mainly of a proteolytic nature, which are initially triggered principally by milk-coagulating enzymes and, afterward, by microorganisms or enzymes of microbial origin. The proteolytic reactions affect, primarily, the synthesis of macro- and medium-molecular peptides from casein. In turn, the advanced proteolysis ends in the formation of short peptides and free amino acids. Further reactions may lead to the formation of nutritionally unfavorable biogenic amines. The present study aimed to determine changes in the contents of bioactive peptides (anserine and L-carnosine), free amino acids, and biogenic amines throughout the ripening of cheese models produced with the addition of Lactobacillus genus bacteria. The contents of amino acids varied considerably in the cheese models, depending on the bacterial strain added and ripening time. After five weeks of ripening, the total content of free amino acids in the cheese models ranged from 611.02 (a cheese model with Lactobacillus casei 2639) to 1596.64 mg kg−1 (a cheese model with Lb. acidophilus 2499). After the same time, the contents of the total biogenic amines in the cheese models with the addition of lactobacilli were lower than in the control cheese model (except for the model with Lb. rhamnosus 489). Anserine was detected in all cheese models (79.29–119.02 mg kg−1), whereas no L-carnosine was found over a five-week ripening period in the cheese models with Lb. delbrueckii 490 and Lb. casei 2639. After a five-week ripening, the highest total content of bioactive peptides was determined in the cheese models containing Lb. acidophilus 2499 (136.11 mg kg−1).
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14
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Occurrence of Biogenic Amines Producers in the Wastewater of the Dairy Industry. Molecules 2020; 25:molecules25215143. [PMID: 33167326 PMCID: PMC7663843 DOI: 10.3390/molecules25215143] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/30/2020] [Accepted: 11/04/2020] [Indexed: 11/25/2022] Open
Abstract
Out of six samples of wastewater produced in the dairy industry, taken in 2017 at various places of dairy operations, 86 bacterial strains showing decarboxylase activity were isolated. From the wastewater samples, the species of genera Staphylococcus, Lactococcus, Enterococcus, Microbacterium, Kocuria, Acinetobacter, Pseudomonas, Aeromonas, Klebsiella and Enterobacter were identified by the MALDI-TOF MS and biochemical methods. The in vitro produced quantity of eight biogenic amines (BAs) was detected by the HPLC/UV–Vis method. All the isolated bacteria were able to produce four to eight BAs. Tyramine, putrescine and cadaverine belonged to the most frequently produced BAs. Of the isolated bacteria, 41% were able to produce BAs in amounts >100 mg L−1. Therefore, wastewater embodies a potential vector of transmission of decarboxylase positive microorganisms, which should be taken into consideration in hazard analyses within foodstuff safety control. The parameters of this wastewater (contents of nitrites, nitrates, phosphates, and proteins) were also monitored.
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Shalaby MA, Kassem MA, Morsy O, Mohamed NM. Anti-tyramine potential of Lactobacillus rhamnosus (LGG®) in cheese samples collected from Alexandria, Egypt. FOOD BIOTECHNOL 2020. [DOI: 10.1080/08905436.2020.1790383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Manal A. Shalaby
- Department of Medical Biotechnology, Institute of Genetic Engineering, City of Scientific Research and Technological Applications, New Borg El-Arab, Egypt
| | - Mervat A. Kassem
- Department of Microbiology and Immunology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Omnia Morsy
- Department of Medical Biotechnology, Institute of Genetic Engineering, City of Scientific Research and Technological Applications, New Borg El-Arab, Egypt
| | - Nelly M. Mohamed
- Department of Microbiology and Immunology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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Jingkai J, Jianming Z, Zhenmin L, Huaxi Y. Dynamic changes of microbiota and texture properties during the ripening of traditionally prepared cheese of China. Arch Microbiol 2020; 202:2059-2069. [PMID: 32488559 DOI: 10.1007/s00203-020-01921-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/13/2020] [Accepted: 05/25/2020] [Indexed: 10/24/2022]
Abstract
The dynamic changes of microbiota assessed by high-throughput sequencing and texture properties of handmade cheese were investigated during ripening time. Streptococcus and Lactococcus were found to be the most predominant genera. The proportion of Streptococcus was decreased from 48 to 32% and the proportion of Lactococcus was increased from 41 to 55% with ripening time from 1 to 120 days. Mould and yeast such as Paecilomyces, Candida, Issatchenkia, Rhodotorula, Cryptococcus and Trichosporon were observed. The regression analysis between composition and textural properties indicated that the hardness was increased along with the rising of soluble nitrogen, while the increased soluble nitrogen could result in lower cohesiveness, and the increased fat in dry matter resulted in lower resilience. The physic-chemical parameters were correlated with secondary microbiota such as Cryptococcus and Candida according to the multivariate association analysis (p < 0.05). These findings could provide a baseline to improve the product quality and preserve the traditional characteristics of handmade cheese.
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Affiliation(s)
- Jiao Jingkai
- State Key Laboratory of Dairy Biotechnology, Dairy Research Institute, Bright Dairy and Food Co., Ltd., Shanghai, 200436, China
| | - Zhang Jianming
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310016, Zhejiang, China
| | - Liu Zhenmin
- State Key Laboratory of Dairy Biotechnology, Dairy Research Institute, Bright Dairy and Food Co., Ltd., Shanghai, 200436, China
| | - Yi Huaxi
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266100, Shandong, China.
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Balta JY, Blom G, Davidson A, Perrault K, Cryan JF, O'Mahony SM, Cassella JP. Developing a quantitative method to assess the decomposition of embalmed human cadavers. Forensic Chem 2020. [DOI: 10.1016/j.forc.2020.100235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Impact of Nisin-Producing Strains of Lactococcus lactis on the Contents of Bioactive Dipeptides, Free Amino Acids, and Biogenic Amines in Dutch-Type Cheese Models. MATERIALS 2020; 13:ma13081835. [PMID: 32295031 PMCID: PMC7215581 DOI: 10.3390/ma13081835] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/06/2020] [Accepted: 04/10/2020] [Indexed: 11/29/2022]
Abstract
The goal of this study was to determine changes in contents of free amino acids, biogenic amines, and bioactive dipeptides (anserine and L-carnosine) in cheese models produced with the addition of nisin-producing strains of Lactococcus lactis over their ripening period. After 5 weeks of ripening, contents of total biogenic amines in the cheese models with the addition of L. lactis strains were lower than in the control cheese model. The cheese models examined differed significantly in contents of free amino acids through the ripening period. Individual free amino acids, such as ornithine, were found in some of the cheese models, which is indicative of their specific microbial activities. Both anserine and L-carnosine were detected in all variants of the cheese models. After 5-week ripening, the highest total content of bioactive dipeptides was determined in the cheese models produced with the nisin-producing culture of L. lactis 11454 (142.15 mg∙kg−1).
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Neuroactive compounds in foods: Occurrence, mechanism and potential health effects. Food Res Int 2019; 128:108744. [PMID: 31955786 DOI: 10.1016/j.foodres.2019.108744] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/01/2019] [Accepted: 10/04/2019] [Indexed: 02/07/2023]
Abstract
Neuroactive compounds are synthesized by certain plants and microorganisms by undertaking different tasks, especially as a stress response. Most common neuroactive compounds in foods are gamma-aminobutyric acid (GABA), serotonin, melatonin, kynurenine, kynurenic acid, dopamine, norepinephrine, histamine, tryptamine, tyramine and β-phenylethylamine. Fermented foods contain some of these compounds, which can affect human health and mood. Moreover, food processing such as roasting and malting alter amount and profile of neuroactive compounds in foods. In addition to plant-origin and microbially-formed neuroactive compounds in foods, these substances are also formed by gut microbiota, which is the most attractive subject to assess the interaction between gut microbiota and mental health. The discovery of microbiota-gut-brain axis calls for the investigation of the effects of diet on the formation of neuroactive compounds in the gut. Furthermore, probiotics and prebiotics are indispensable elements for the understanding of the food-mood relationship. The focus of this comprehensive review is to investigate the neuroactive compounds found naturally in foods or formed during fermentation. Their formation pathways in humans, plants and microorganisms, potential health effects, effects of diet on the formation of microbial metabolites including neuroactive compounds in the gut are discussed throughout this review. Furthermore, the importance of gut-brain axis, probiotics and prebiotics are discussed.
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Abstract
Cheeses belong to high protein foods in which enzymatic and microbial activities form amino acids, which are then converted into biogenic amines (BAs) by the activity of bacterial decarboxylases. The most important conditions for BA formation include the presence of microorganisms, the availability of substrate, temperature and storage period, water activity, salt concentration, and the hygiene of the manufacturing process. Tyramine, histamine, 2-phenylethylamine, tryptamine, cadaverine, putrescine, spermidine and spermine were detected in smear ripened cheeses stored in different temperature regimes. The highest (p < 0.05) total BA content was found when storing the cheeses at the end of BBD (best before date) after 35 days in storage regime (A) or (C). During storage in regime (B), the total BA content (p < 0.05) after 49 days of storage was higher than on the production date (B/0). During storage, the tyramine content in regime (B) did not change (p > 0.05), while in the temperature regimes (A) and (C), the highest levels of tyramine and putrescine content were recorded in cheeses at the end of BBD after 35 days ripening. The content of polyamines in cheeses was higher (p < 0.05) at the end of storage than at the beginning, in all temperature regimes.
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Biogenic Amines in Traditional Fiore Sardo PDO Sheep Cheese: Assessment, Validation and Application of an RP-HPLC-DAD-UV Method. SEPARATIONS 2019. [DOI: 10.3390/separations6010011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This contribution aimed to measure for the first time the amount of biogenic amines (BAs) in one of the most ancient and traditional sheep cheese produced in Sardinia, Italy: the Protected Designation of Origin (PDO) Fiore Sardo. To achieve this, an original RP-HPLC-DAD-UV method has been developed that was completely validated in terms of LoD, LoQ, linearity, precision and trueness, and tested on 36 real Fiore Sardo PDO cheese samples produced by four different cheesemakers and marketed by four stores. The average total concentration of the eight BAs (i.e., tyramine, tryptamine, histidine, putrescine, cadaverine, 2-phenylethylamine, spermine and spermidine) measured in Fiore Sardo cheese was 700 mg/kg, with a range between 170 mg/kg and 1,100 mg/kg. A great variability in the total amount of BAs has been evidenced among the Fiore Sardo marketed in the four stores as well as for the cheeses purchased in different times in the same store. Tyramine (350 mg/kg), putrescine (150 mg/kg), histamine (80 mg/kg) and cadaverine (30 mg/kg) are the most abundant BAs found in this matrix. Among the many factors concurring, the dominant microflora of Fiore Sardo PDO is likely the principal cause of the qualitative and quantitative distribution of BAs in this matrix. Finally, the total amount of BAs found in Fiore Sardo PDO is not able to cause any health alert situation for consumers.
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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: 219] [Impact Index Per Article: 43.8] [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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Pachlová V, Buňková L, Flasarová R, Salek RN, Dlabajová A, Butor I, Buňka F. Biogenic amine production by nonstarter strains of Lactobacillus curvatus and Lactobacillus paracasei in the model system of Dutch-type cheese. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2018.07.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Gurkan H, Yilmaztekin M, Cakmakci S, Hayaloglu AA. Volatile compounds and biogenic amines during the ripening of mold‐ripened Civil cheese manufactured using three different strains of
Penicillium roqueforti. J Food Saf 2018. [DOI: 10.1111/jfs.12568] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- H. Gurkan
- Department of Food EngineeringInonu University Malatya Turkey
| | - M. Yilmaztekin
- Department of Food EngineeringInonu University Malatya Turkey
| | - S. Cakmakci
- Department of Food EngineeringAtaturk University Erzurum Turkey
| | - A. A. Hayaloglu
- Department of Food EngineeringInonu University Malatya Turkey
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Kaur N, Chopra S, Singh G, Raj P, Bhasin A, Sahoo SK, Kuwar A, Singh N. Chemosensors for biogenic amines and biothiols. J Mater Chem B 2018; 6:4872-4902. [PMID: 32255063 DOI: 10.1039/c8tb00732b] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
There is burgeoning interest among supramolecular chemists to develop novel molecular systems to detect biogenic amines and bio-thiols in aqueous and non-aqueous media due to their potential role in biological processes. Biogenic amines are biologically important targets because of their involvement in the energy metabolism of human biological systems and their requirement is met through food and nutrition. However, the increasing instances of serious health problems due to food toxicity have raised the quality of food nowadays. Biogenic amines have been frequently considered as the markers or primary quality parameters of foods like antioxidant properties, freshness and spoilage. For instance, these amines such as spermine, spermidine, cadavarine, etc. may originate during microbial decarboxylation of amino acids of fermented foods/beverages. These amines may also react with nitrite available in certain meat products and concomitantly produce carcinogenic nitrosamine compounds. On the other hand, it is also well established that biothiols, particularly, thiol amino acids, provide the basic characteristics to food including flavor, color and texture that determine its acceptability. For instance, the reduction of thiol groups produces hydrogen sulfide which reduces flavour as in rotten eggs and spoiled fish, and the presence of hydrogen sulfide in fish is indicative of spoilage. Thus, biogenic amines and bio-thiols have attracted the profound interest of researchers as analytical tools for their quantification. Much scientific and technological information is issued every year, where the establishment of precise interactions of biogenic amines and bio-thiols with other molecules is sought in aqueous and non-aqueous media. This review summarizes the optical chemosensors developed for the selective detection of biogenic amines and bio-thiols.
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Affiliation(s)
- Navneet Kaur
- Department of Chemistry, Panjab University (PU), Chandigarh-160014, India.
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Doeun D, Davaatseren M, Chung MS. Biogenic amines in foods. Food Sci Biotechnol 2017; 26:1463-1474. [PMID: 30263683 PMCID: PMC6049710 DOI: 10.1007/s10068-017-0239-3] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/22/2017] [Accepted: 09/27/2017] [Indexed: 10/18/2022] Open
Abstract
Biogenic amines are produced by bacterial decarboxylation of corresponding amino acids in foods. Concentration of biogenic amines in fermented food products is affected by several factors in the manufacturing process, including hygienic of raw materials, microbial composition, fermentation condition, and the duration of fermentation. Intake of low amount of biogenic amines normally does not have harmful effect on human health. However, when their amount in food is too high and detoxification ability is inhibited or disturbed, biogenic amines could cause problem. To control concentration of BAs in food, decarboxylase activity for amino acids can be regulated. Levels of BAs can be reduced by several methods such as packaging, additives, hydrostatic pressure, irradiation, pasteurization, smoking, starter culture, oxidizing formed biogenic amine, and temperature. The objective of this review paper was to collect, summarize, and discuss necessary information or useful data based on previous studies in terms of BAs in various foods.
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Affiliation(s)
- Dara Doeun
- Department of Food Science and Technology, Chung-Ang University, 4726 Seodongdae-Ro, Daedeok-Myeon, Anseong-si, Gyeonggi-do 456-756 Korea
| | - Munkhtugs Davaatseren
- Department of Food Science and Technology, Chung-Ang University, 4726 Seodongdae-Ro, Daedeok-Myeon, Anseong-si, Gyeonggi-do 456-756 Korea
| | - Myung-Sub Chung
- Department of Food Science and Technology, Chung-Ang University, 4726 Seodongdae-Ro, Daedeok-Myeon, Anseong-si, Gyeonggi-do 456-756 Korea
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Purevdorj K, Maršálková K, Březinová I, Žalková A, Pleva P, Buňková L. Antimicrobial effect of selected lactic acid bacteria against microorganisms with decarboxylase activity. POTRAVINARSTVO 2017. [DOI: 10.5219/740] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The main purpose of this study was to evaluate the antimicrobial activity of twenty-one bacteriocinogenic lactic acid bacteria (12 strains of Lactococcus lactis subsp. lactis, 4 strains of Lactobacillus gasseri, 3 strains of Lb. helveticus and 2 strains of Lb. acidophilus, LAB) against 28 Staphylococcus and 33 Enterococcus strains able to produce tyramine, putrescine, 2-phenylethylamine and cadaverine. The antimicrobial activity of cell-free supernatants (CFS) from tested LAB was examined by an agar-well diffusion assay. Nine out of twenty-one strains (33%) showed the inhibitory effect on tested enterococci and staphylococci, namely 9 strains of Lactococcus lactis subsp. lactis. The diameters of inhibition zones ranged between 7 mm and 14 mm. The biggest diameter of 14 mm inhibition was obtained with the CFS's from strains CCDM 670 and CCDM 731 on Enterococcus sp. E16 and E28. The cell-free supernatants from Lactococcus lactis subsp. lactis CCDM 71 and from Lactococcus lactis subsp. lactis CCDM 731 displayed the broadest antibacterial activity (52% inhibition of all tested strains). On the other hand, the cell-free supernatants from the screened Lactobacillus strains did not show any inhibitory effect on the tested Staphylococcus and Enterococcus strains. Nowadays, the great attention is given to the antibacterial substances produced by lactic acid bacteria. With the ability to produce a variety of metabolites displaying inhibitory effect, the LAB have great potential in biopreservation of food.
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Salek RN, Černíková M, Pachlová V, Bubelová Z, Konečná V, Buňka F. Properties of spreadable processed Mozzarella cheese with divergent compositions of emulsifying salts in relation to the applied cheese storage period. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.11.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Gardini F, Özogul Y, Suzzi G, Tabanelli G, Özogul F. Technological Factors Affecting Biogenic Amine Content in Foods: A Review. Front Microbiol 2016; 7:1218. [PMID: 27570519 PMCID: PMC4982241 DOI: 10.3389/fmicb.2016.01218] [Citation(s) in RCA: 183] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 07/21/2016] [Indexed: 12/17/2022] Open
Abstract
Biogenic amines (BAs) are molecules, which can be present in foods and, due to their toxicity, can cause adverse effects on the consumers. BAs are generally produced by microbial decarboxylation of amino acids in food products. The most significant BAs occurring in foods are histamine, tyramine, putrescine, cadaverine, tryptamine, 2-phenylethylamine, spermine, spermidine, and agmatine. The importance of preventing the excessive accumulation of BAs in foods is related to their impact on human health and food quality. Quality criteria in connection with the presence of BAs in food and food products are necessary from a toxicological point of view. This is particularly important in fermented foods in which the massive microbial proliferation required for obtaining specific products is often relater with BAs accumulation. In this review, up-to-date information and recent discoveries about technological factors affecting BA content in foods are reviewed. Specifically, BA forming-microorganism and decarboxylation activity, genetic and metabolic organization of decarboxylases, risk associated to BAs (histamine, tyramine toxicity, and other BAs), environmental factors influencing BA formation (temperature, salt concentration, and pH). In addition, the technological factors for controlling BA production (use of starter culture, technological additives, effects of packaging, other non-thermal treatments, metabolizing BA by microorganisms, effects of pressure treatments on BA formation and antimicrobial substances) are addressed.
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Affiliation(s)
- Fausto Gardini
- Centro Interdipartimentale di Ricerca Industriale Agroalimentare, Università degli Studi di BolognaCesena, Italy
- Dipartimento di Scienze e Tecnologie Agro-alimentari, Università degli Studi di BolognaCesena, Italy
| | - Yesim Özogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Çukurova UniversityAdana, Turkey
| | - Giovanna Suzzi
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of TeramoMosciano Sant’Angelo, Italy
| | - Giulia Tabanelli
- Centro Interdipartimentale di Ricerca Industriale Agroalimentare, Università degli Studi di BolognaCesena, Italy
- Dipartimento di Scienze e Tecnologie Agro-alimentari, Università degli Studi di BolognaCesena, Italy
| | - Fatih Özogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Çukurova UniversityAdana, Turkey
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32
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Poveda J, Molina G, Gómez-Alonso S. Variability of biogenic amine and free amino acid concentrations in regionally produced goat milk cheeses. J Food Compost Anal 2016. [DOI: 10.1016/j.jfca.2016.06.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Pachlová V, Buňka F, Buňková L, Purkrtová S, Havlíková Š, Němečková I. Biogenic amines and their producers in Akawi white cheese. INT J DAIRY TECHNOL 2016. [DOI: 10.1111/1471-0307.12294] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Vendula Pachlová
- Department of Food Technology; Faculty of Technology; Tomas Bata University in Zlín; nám. T. G. Masaryka 5555 Zlín Czech Republic
| | - František Buňka
- Department of Food Technology; Faculty of Technology; Tomas Bata University in Zlín; nám. T. G. Masaryka 5555 Zlín Czech Republic
| | - Leona Buňková
- Department of Environment Protection Engineering; Faculty of Technology; Tomas Bata University in Zlín; nám. T. G. Masaryka 5555 Zlín Czech Republic
| | - Sabina Purkrtová
- Department of Biochemistry and Microbiology; Faculty of Food and Biochemical Technology; Institute of Chemical Technology; Technická 3 Prague Czech Republic
| | - Šárka Havlíková
- Dairy Research Institute; Ke Dvoru 12a Prague Czech Republic
| | - Irena Němečková
- Dairy Research Institute; Ke Dvoru 12a Prague Czech Republic
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Kunová S, Čuboň J, Kačániová M, Haščík P, Bobko M, Bučko O, Petrová J, Cviková P. Quality evaluation of Korbačik cheese. POTRAVINARSTVO 2015. [DOI: 10.5219/549] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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O'Sullivan DJ, Fallico V, O'Sullivan O, McSweeney PLH, Sheehan JJ, Cotter PD, Giblin L. High-throughput DNA sequencing to survey bacterial histidine and tyrosine decarboxylases in raw milk cheeses. BMC Microbiol 2015; 15:266. [PMID: 26577209 PMCID: PMC4650399 DOI: 10.1186/s12866-015-0596-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 11/02/2015] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The aim of this study was to employ high-throughput DNA sequencing to assess the incidence of bacteria with biogenic amine (BA; histamine and tyramine) producing potential from among 10 different cheeses varieties. To facilitate this, a diagnostic approach using degenerate PCR primer pairs that were previously designed to amplify segments of the histidine (hdc) and tyrosine (tdc) decarboxylase gene clusters were employed. In contrast to previous studies in which the decarboxylase genes of specific isolates were studied, in this instance amplifications were performed using total metagenomic DNA extracts. RESULTS Amplicons were initially cloned to facilitate Sanger sequencing of individual gene fragments to ensure that a variety of hdc and tdc genes were present. Once this was established, high throughput DNA sequencing of these amplicons was performed to provide a more in-depth analysis of the histamine- and tyramine-producing bacteria present in the cheeses. High-throughput sequencing resulted in generation of a total of 1,563,764 sequencing reads and revealed that Lactobacillus curvatus, Enterococcus faecium and E. faecalis were the dominant species with tyramine producing potential, while Lb. buchneri was found to be the dominant species harbouring histaminogenic potential. Commonly used cheese starter bacteria, including Streptococcus thermophilus and Lb. delbreueckii, were also identified as having biogenic amine producing potential in the cheese studied. Molecular analysis of bacterial communities was then further complemented with HPLC quantification of histamine and tyramine in the sampled cheeses. CONCLUSIONS In this study, high-throughput DNA sequencing successfully identified populations capable of amine production in a variety of cheeses. This approach also gave an insight into the broader hdc and tdc complement within the various cheeses. This approach can be used to detect amine producing communities not only in food matrices but also in the production environment itself.
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Affiliation(s)
- Daniel J O'Sullivan
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland.
- School of Food and Nutritional Sciences, University College Cork, Cork, Ireland.
| | | | - Orla O'Sullivan
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland.
| | - Paul L H McSweeney
- School of Food and Nutritional Sciences, University College Cork, Cork, Ireland.
| | | | - Paul D Cotter
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland.
- Alimentary Pharmabiotic Centre, Cork, Ireland.
| | - Linda Giblin
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland.
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Linares DM, Del Rio B, Redruello B, Ladero V, Martin MC, de Jong A, Kuipers OP, Fernandez M, Alvarez MA. AguR, a Transmembrane Transcription Activator of the Putrescine Biosynthesis Operon in Lactococcus lactis, Acts in Response to the Agmatine Concentration. Appl Environ Microbiol 2015; 81:6145-57. [PMID: 26116671 PMCID: PMC4542264 DOI: 10.1128/aem.00959-15] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 06/23/2015] [Indexed: 12/14/2022] Open
Abstract
Dairy industry fermentative processes mostly use Lactococcus lactis as a starter. However, some dairy L. lactis strains produce putrescine, a biogenic amine that raises food safety and spoilage concerns, via the agmatine deiminase (AGDI) pathway. The enzymatic activities responsible for putrescine biosynthesis in this bacterium are encoded by the AGDI gene cluster. The role of the catabolic genes aguB, aguD, aguA, and aguC has been studied, but knowledge regarding the role of aguR (the first gene in the cluster) remains limited. In the present work, aguR was found to be a very low level constitutively expressed gene that is essential for putrescine biosynthesis and is transcribed independently of the polycistronic mRNA encoding the catabolic genes (aguBDAC). In response to agmatine, AguR acts as a transcriptional activator of the aguB promoter (PaguB), which drives the transcription of the aguBDAC operon. Inverted sequences required for PaguB activity were identified by deletion analysis. Further work indicated that AguR is a transmembrane protein which might function as a one-component signal transduction system that senses the agmatine concentration of the medium and, accordingly, regulates the transcription of the aguBDAC operon through a C-terminal cytoplasmic DNA-binding domain typically found in LuxR-like proteins.
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Affiliation(s)
- Daniel M Linares
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Villaviciosa, Spain
| | - Beatriz Del Rio
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Villaviciosa, Spain
| | - Begoña Redruello
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Villaviciosa, Spain
| | - Victor Ladero
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Villaviciosa, Spain
| | - M Cruz Martin
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Villaviciosa, Spain
| | - Anne de Jong
- Department of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, The Netherlands
| | - Oscar P Kuipers
- Department of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, The Netherlands
| | - Maria Fernandez
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Villaviciosa, Spain
| | - Miguel A Alvarez
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Villaviciosa, Spain
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37
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Flasarová R, Pachlová V, Buňková L, Menšíková A, Georgová N, Dráb V, Buňka F. Biogenic amine production by Lactococcus lactis subsp. cremoris strains in the model system of Dutch-type cheese. Food Chem 2015; 194:68-75. [PMID: 26471528 DOI: 10.1016/j.foodchem.2015.07.069] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 07/15/2015] [Accepted: 07/16/2015] [Indexed: 01/04/2023]
Abstract
The aim of this study was to compare the biogenic amine production of two starter strains of Lactococcus lactis subsp. cremoris (strains from the Culture Collection of Dairy Microorganisms - CCDM 824 and CCDM 946) with decarboxylase positive activity in a model system of Dutch-type cheese during a 90-day ripening period at 10°C. During ripening, biogenic amine and free amino acid content, microbiological characteristics and proximate chemical properties were observed. By the end of the ripening period, the putrescine content in both samples with the addition of the biogenic amine producing strain almost evened out and the concentration of putrescine was >800mg/kg. The amount of tyramine in the cheeses with the addition of the strain of CCDM 824 approached the limit of 400mg/kg by the end of ripening. In the cheeses with the addition of the strain of CCDM 946 it even exceeded 500mg/kg. In the control samples, the amount of biogenic amines was insignificant.
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Affiliation(s)
- Radka Flasarová
- Department of Food Technology, Faculty of Technology, Tomas Bata University in Zlin, nám. T. G. Masaryka 5555, 760 05 Zlin, Czech Republic
| | - Vendula Pachlová
- Department of Food Technology, Faculty of Technology, Tomas Bata University in Zlin, nám. T. G. Masaryka 5555, 760 05 Zlin, Czech Republic.
| | - Leona Buňková
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, nám. T. G. Masaryka 5555, 760 05 Zlin, Czech Republic
| | - Anna Menšíková
- Department of Food Technology, Faculty of Technology, Tomas Bata University in Zlin, nám. T. G. Masaryka 5555, 760 05 Zlin, Czech Republic
| | - Nikola Georgová
- Department of Food Technology, Faculty of Technology, Tomas Bata University in Zlin, nám. T. G. Masaryka 5555, 760 05 Zlin, Czech Republic
| | - Vladimír Dráb
- Dairy Research Institute, 160 00 Prague, Czech Republic
| | - František Buňka
- Department of Food Technology, Faculty of Technology, Tomas Bata University in Zlin, nám. T. G. Masaryka 5555, 760 05 Zlin, Czech Republic
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38
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Ladero V, Martín MC, Redruello B, Mayo B, Flórez AB, Fernández M, Alvarez MA. Genetic and functional analysis of biogenic amine production capacity among starter and non-starter lactic acid bacteria isolated from artisanal cheeses. Eur Food Res Technol 2015. [DOI: 10.1007/s00217-015-2469-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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39
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A survey of the main technology, biochemical and microbiological features influencing the concentration of biogenic amines of twenty Apulian and Sicilian (Southern Italy) cheeses. Int Dairy J 2015. [DOI: 10.1016/j.idairyj.2014.11.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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40
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Rabie MAH, Galeel AAA, Malcata FX. Proteolysis and Biogenic Amine Formation in Sterilized Edam-Type Curd Slurry Inoculated with Probiotic Strains. J FOOD PROCESS PRES 2015. [DOI: 10.1111/jfpp.12475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
| | | | - Francisco Xavier Malcata
- Department of Chemical Engineering; Laboratory for Engineering of Processes, Environment, Biotechnology and Energy; University of Porto; Porto P-4200-465 Portugal
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41
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Bioactive amines in Mozzarella cheese from milk with varying somatic cell counts. Food Chem 2015; 178:229-35. [PMID: 25704706 DOI: 10.1016/j.foodchem.2015.01.084] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 12/10/2014] [Accepted: 01/19/2015] [Indexed: 11/23/2022]
Abstract
The influence of somatic cells counts (SCC) in milk on bioactive amines in Mozzarella cheese was investigated. High SCC milk had lower lactose and higher pH compared to low and medium SCC. Low spermine levels were found in milk irrespective of SCC. The cheeses had similar characteristics, but the extension and depth of proteolysis increased with SCC. Cheese from all SCC categories contained spermine; whereas tyramine and tryptamine were only detected in cheese from high SCC milk. During 60-days refrigerated storage, significant positive effects were observed between SCC and proteolysis, storage time and pH and storage time and proteolysis. There was a significant positive effect of storage time on spermine and serotonin levels. Only cheese from high SCC milk showed significantly higher serotonin levels. Tyramine and tryptamine were found in cheese from high SCC milk.
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42
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Costa MP, Balthazar CF, Rodrigues BL, Lazaro CA, Silva ACO, Cruz AG, Conte Junior CA. Determination of biogenic amines by high-performance liquid chromatography (HPLC-DAD) in probiotic cow's and goat's fermented milks and acceptance. Food Sci Nutr 2015; 3:172-8. [PMID: 25987991 PMCID: PMC4431784 DOI: 10.1002/fsn3.200] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Revised: 12/13/2014] [Accepted: 12/19/2014] [Indexed: 11/12/2022] Open
Abstract
This study evaluated the presence of biogenic amines in fermented cow's and goat's milks containing probiotic bacteria, during the first 10 days of chilled storage (4 ± 2°C), when the probiotic strains are most viable. The overall acceptance of both fermented milks, produced using the same starter culture and probiotics, was tested. In both products, the initially high levels of tyramine (560 mg kg−1 means for both fermented milks), the predominant biogenic amine, increased during the storage period, which may be considered this amine as a quality index for fermented milks. The other principal biogenic amines (putrescine, cadaverine, histamine, and spermidine) were produced on days 1–5 of storage, and thereafter decreased. At the end of the 10th day, these amines, respectively, showed values of fermented cow's milk 20.26, 29.09, 17.97, and 82.07 mg kg−1; and values of fermented goat's milk 22.92, 29.09, 34.85, and 53.85 mg kg−1, in fermented cow's and goat's milk. Fermented cow's milk was well accepted compared to fermented goat's milk. The results suggested that the content of biogenic amines may be a criterion for selecting lactic acid bacteria used to produce fermented milks.
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Affiliation(s)
- Marion P Costa
- Department of Food Technology, Universidade Federal Fluminense Rio de Janeiro, Brazil
| | - Celso F Balthazar
- Department of Food Technology, Universidade Federal Fluminense Rio de Janeiro, Brazil
| | - Bruna L Rodrigues
- Department of Food Technology, Universidade Federal Fluminense Rio de Janeiro, Brazil
| | - Cesar A Lazaro
- Department of Animal Health and Public Health, Universidad Nacional Mayor de San Marcos Lima, Peru
| | - Adriana C O Silva
- Department of Food Technology, Universidade Federal Fluminense Rio de Janeiro, Brazil
| | - Adriano G Cruz
- Master in Food and Science Program, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro Rio de Janeiro, Brazil
| | - Carlos A Conte Junior
- Department of Food Technology, Universidade Federal Fluminense Rio de Janeiro, Brazil
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43
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Pleva P, Buňková L, Theimrová E, Bartošáková V, Buňka F, Purevdorj K. Biogenic amines in smear and mould-ripened cheeses. POTRAVINARSTVO 2014. [DOI: 10.5219/408] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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44
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del Rio B, Ladero V, Redruello B, Linares DM, Fernández M, Martín MC, Alvarez MA. Lactose-mediated carbon catabolite repression of putrescine production in dairy Lactococcus lactis is strain dependent. Food Microbiol 2014; 48:163-70. [PMID: 25791004 DOI: 10.1016/j.fm.2014.11.018] [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: 06/12/2014] [Revised: 10/21/2014] [Accepted: 11/08/2014] [Indexed: 11/16/2022]
Abstract
Lactococcus lactis is the lactic acid bacterial (LAB) species most widely used as a primary starter in the dairy industry. However, several strains of L. lactis produce the biogenic amine putrescine via the agmatine deiminase (AGDI) pathway. We previously reported the putrescine biosynthesis pathway in L. lactis subsp. cremoris GE2-14 to be regulated by carbon catabolic repression (CCR) via glucose but not lactose (Linares et al., 2013). The present study shows that both these sugars repress putrescine biosynthesis in L. lactis subsp. lactis T3/33, a strain isolated from a Spanish artisanal cheese. Furthermore, we demonstrated that both glucose and lactose repressed the transcriptional activity of the aguBDAC catabolic genes of the AGDI route. Finally, a screening performed in putrescine-producing dairy L. lactis strains determined that putrescine biosynthesis was repressed by lactose in all the L. lactis subsp. lactis strains tested, but in only one L. lactis subsp. cremoris strain. Given the obvious importance of the lactose-repression in cheese putrescine accumulation, it is advisable to consider the diversity of L. lactis in this sense and characterize consequently the starter cultures to select the safest strains.
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Affiliation(s)
- Beatriz del Rio
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Paseo Rio Linares s/n, 33300 Villaviciosa, Spain.
| | - Victor Ladero
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Paseo Rio Linares s/n, 33300 Villaviciosa, Spain.
| | - Begoña Redruello
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Paseo Rio Linares s/n, 33300 Villaviciosa, Spain.
| | - Daniel M Linares
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Paseo Rio Linares s/n, 33300 Villaviciosa, Spain.
| | - Maria Fernández
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Paseo Rio Linares s/n, 33300 Villaviciosa, Spain.
| | - Maria Cruz Martín
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Paseo Rio Linares s/n, 33300 Villaviciosa, Spain.
| | - Miguel A Alvarez
- Instituto de Productos Lácteos de Asturias, IPLA-CSIC, Paseo Rio Linares s/n, 33300 Villaviciosa, Spain.
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Wunderlichová L, Buňková L, Koutný M, Jančová P, Buňka F. Formation, Degradation, and Detoxification of Putrescine by Foodborne Bacteria: A Review. Compr Rev Food Sci Food Saf 2014. [DOI: 10.1111/1541-4337.12099] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Leona Wunderlichová
- Dept. of Environmental Protection Engineering; Faculty of Technology; Tomas Bata Univ. in Zlín; nám. T. G. Masaryka 275 76272 Zlín Czech Republic
| | - Leona Buňková
- Dept. of Environmental Protection Engineering; Faculty of Technology; Tomas Bata Univ. in Zlín; nám. T. G. Masaryka 275 76272 Zlín Czech Republic
| | - Marek Koutný
- Dept. of Environmental Protection Engineering; Faculty of Technology; Tomas Bata Univ. in Zlín; nám. T. G. Masaryka 275 76272 Zlín Czech Republic
| | - Petra Jančová
- Dept. of Environmental Protection Engineering; Faculty of Technology; Tomas Bata Univ. in Zlín; nám. T. G. Masaryka 275 76272 Zlín Czech Republic
| | - František Buňka
- Dept. of Food Technology; Faculty of Technology; Tomas Bata Univ. in Zlín; nám. T. G. Masaryka 275 76272 Zlín Czech Republic
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46
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Foster A, Barnes N, Speight R, Keane MA. Genomic organisation, activity and distribution analysis of the microbial putrescine oxidase degradation pathway. Syst Appl Microbiol 2013; 36:457-66. [DOI: 10.1016/j.syapm.2013.06.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 06/25/2013] [Accepted: 06/28/2013] [Indexed: 12/29/2022]
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47
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Bunka F, Pachlová V, Nenutilová L. Texture Properties of Dutch-Type Cheese as a Function of Its Location and Ripening. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2013. [DOI: 10.1080/10942912.2011.575496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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48
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The putrescine biosynthesis pathway in Lactococcus lactis is transcriptionally regulated by carbon catabolic repression, mediated by CcpA. Int J Food Microbiol 2013; 165:43-50. [DOI: 10.1016/j.ijfoodmicro.2013.04.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 04/15/2013] [Accepted: 04/17/2013] [Indexed: 11/19/2022]
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49
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Calvo-Pérez A, Domínguez-Renedo O, Alonso-Lomillo MA, Arcos-Martínez MJ. Disposable Horseradish Peroxidase Biosensors for the Selective Determination of Tyramine. ELECTROANAL 2013. [DOI: 10.1002/elan.201200636] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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50
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Buňková L, Adamcová G, Hudcová K, Velichová H, Pachlová V, Lorencová E, Buňka F. Monitoring of biogenic amines in cheeses manufactured at small-scale farms and in fermented dairy products in the Czech Republic. Food Chem 2013; 141:548-51. [PMID: 23768392 DOI: 10.1016/j.foodchem.2013.03.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Revised: 01/28/2013] [Accepted: 03/11/2013] [Indexed: 10/27/2022]
Abstract
The aim of the study was the monitoring of six biogenic amines (histamine, tyramine, phenylethylamine, tryptamine, putrescine, and cadaverine) and two polyamines (spermidine and spermine) in 112 samples of dairy products purchased in the Czech Republic, namely in 55 cheeses made in small-scale farms and in 57 fermented dairy products. The products were tested at the end of their shelf-life period. Neither tryptamine nor phenylethylamine was detected in the monitored samples; histamine was found only in four cheese samples containing up to 25mg/kg. The contents of spermine and spermidine were low and did not exceed the values of 35 mg/kg. Significant amounts of tyramine, putrescine, and cadaverine occurred especially in cheeses produced from ewe's milk or in long-term ripened cheeses. In about 10% of the tested cheeses, the total concentration of all the monitored biogenic amines and polyamines exceeded the level of 200mg/kg, which can be considered toxicologically significant. In fermented dairy products, the tested biogenic amines occurred in relatively low amounts (generally up to 30 mg/kg) that are regarded safe for the consumer's health.
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Affiliation(s)
- Leona Buňková
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, nám. T.G. Masaryka 275, 76272 Zlín, Czech Republic.
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