1
|
Qin Y, Li W, Zhang W, Zhang B, Yao D, Zeng C, Cao J, Li L, Huang R. Characterization the microbial diversity and metabolites of four varieties of Dry-Cured ham in western Yunnan of China. Food Chem X 2024; 22:101257. [PMID: 38495458 PMCID: PMC10943036 DOI: 10.1016/j.fochx.2024.101257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 02/06/2024] [Accepted: 02/25/2024] [Indexed: 03/19/2024] Open
Abstract
In this study, high-throughput sequencing and metabolomics analysis were conducted to analyze the microbial and metabolites of dry-cured Sanchuan ham, Laowo ham, Nuodeng ham, and Heqing ham that have fermented for two years produced from western Yunnan China. Results showed that at the genus level, the dominant bacteria in the four types of ham were Halomonas and Staphylococcus, while the dominant fungi were Aspergillus and Yamadazyma. A total 422 different metabolites were identified in four types of ham, mainly amino acids, peptides, fatty acids, and their structural analogs, which were involved in pantothenate and coenzyme A biosynthesis, caffeine, and tyrosine metabolism. The dominant microorganisms of the four types of ham were mainly related to the metabolism of fatty acids and amino acids. This research enhances the identification degree of these four types of dry-cured ham and provides a theoretical basis for developing innovative and distinctive ham products.
Collapse
Affiliation(s)
- Yu Qin
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Wenwen Li
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Wenwen Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Beibei Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Dengjie Yao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Chunyin Zeng
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Jianxin Cao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Lirong Li
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Rui Huang
- Zhongken Huashan Mu Daity Co., LTD, Weinan, Shaanxi Province 714000, China
| |
Collapse
|
2
|
Tabanelli G, Barbieri F, Baños A, Madero JMG, Daza MVB, Cortimiglia C, Milani G, Bassi D, Gardini F, Montanari C. Companilactobacillus alimentarius: An extensive characterization of strains isolated from spontaneous fermented sausages. Int J Food Microbiol 2024; 410:110489. [PMID: 38039926 DOI: 10.1016/j.ijfoodmicro.2023.110489] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/07/2023] [Accepted: 11/11/2023] [Indexed: 12/03/2023]
Abstract
Companilactobacillus alimentarius is a facultatively heterofermentative lactic acid bacterium (LAB) that is a significant constituent within the microbiota of various traditional fermented foods exerting several functions in fermentative or ripening processes. This species has been isolated from Spanish fermented sausages, where its frequency of isolation was comparable to those of Latilactobacillus sakei and Latilactobacillus curvatus. Despite to its presence in several niches, ecological information on this species is still scarce and only few publications report information about its safety features (i.e. antibiotic resistance). Since studies on C. alimentarius concern the analysis of a few individual traits regarding this species, a more extensive work on a larger number of isolates from the same matrix have been performed to allow a clearer interpretation of their phenotypic and technological characteristics. Specifically, 14 strains of C. alimentarius isolated from Mediterranean spontaneously fermented sausages, have been screened for their safety and technological characteristics (such as antibiotic resistance, biogenic amine production, inhibiting potential, growth at different temperatures and NaCl concentrations) and with phenotype microarrays with the aim to elucidate their potential role and contribution to sausage fermentation and ripening. In general, a wide variability was observed in relation to the parameters considered. Several of the tested strains were able to produce histamine, tyramine and putrescine while the antibiotic resistance greatly varied according to the strains, with the exception of vancomycin. In addition, C. alimentarius strains showed a relevant potential to grow in conditions of salt and temperature mimicking those found in fermented foods. In particular, the growth at 10 °C and in the presence of salt can explain the presence of C. alimentarius in sausages and its adaptation to fermented meat environment in which low temperature can be applied during ripening. The differentiation of the phenotypic profile reflected the environmental conditions that influenced the isolation source, including those derived by the raw materials. Given the species frequent association with spontaneous fermentations or the ripening microbiota of various products, despite not being intentionally used as starter cultures, the data presented in this study contribute to a deeper comprehension of their role, both advantageous and detrimental, in numerous significant fermented foods.
Collapse
Affiliation(s)
- Giulia Tabanelli
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Bologna, Italy; Interdepartmental Center for Industrial Agri-Food Research, University of Bologna, 47521 Cesena, Italy
| | - Federica Barbieri
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Cesena, Italy.
| | - Alberto Baños
- Department of Microbiology, DOMCA S.A.U., 18620 Alhendín, Spain
| | | | - Mireya Viviana Belloso Daza
- Department for Sustainable Food Process (DISTAS), Università Cattolica del Sacro Cuore, 26100 Cremona, Italy
| | - Claudia Cortimiglia
- Department for Sustainable Food Process (DISTAS), Università Cattolica del Sacro Cuore, 26100 Cremona, Italy
| | - Giovanni Milani
- Department for Sustainable Food Process (DISTAS), Università Cattolica del Sacro Cuore, 26100 Cremona, Italy
| | - Daniela Bassi
- Department for Sustainable Food Process (DISTAS), Università Cattolica del Sacro Cuore, 26100 Cremona, Italy
| | - Fausto Gardini
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Cesena, Italy
| | - Chiara Montanari
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Cesena, Italy
| |
Collapse
|
3
|
Palmnäs-Bédard M, de Santa Izabel A, Dicksved J, Landberg R. Characterization of the Bacterial Composition of 47 Fermented Foods in Sweden. Foods 2023; 12:3827. [PMID: 37893721 PMCID: PMC10606000 DOI: 10.3390/foods12203827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Fermentation has long been utilized to preserve and enhance the flavor and nutritional value of foods. Recently, fermented foods have gained popularity, reaching new consumer groups due to perceived health benefits. However, the microbial composition of many fermented foods re-mains unknown. Here, we characterized the bacterial composition, diversity, and richness of 47 fermented foods available in Sweden, including kombucha, water kefir, milk kefir, yogurt, plant-based yogurt alternatives, kimchi, sauerkraut, and fermented vegetables. Via 16S rRNA gene sequencing, we identified 2497 bacteria (amplicon sequence variants). The bacterial composition was strongly associated with the type of fermented food, and lactic acid bacteria and/or acetic acid bacteria dominated most samples. However, each fermented food had a unique composition, with kombucha and water kefir having the highest diversity across and within samples. Few bacteria were abundant in multiple foods and food groups. These were Streptococcus thermophilus in yogurts and plant-based yoghurts; Lactococcus lactis in milk kefirs and one water kefir; and Lactiplantibacillus plantarum in kimchi, sauerkraut, and fermented cucumber. The broad range of fermented foods included in this study and their diverse bacterial communities warrant further investigation into the implications of microbial compositions for product traits and potential impact on human health.
Collapse
Affiliation(s)
- Marie Palmnäs-Bédard
- Department of Life Sciences, Division of Food and Nutrition Science, Chalmers University of Technology, 412 96 Gothenburg, Sweden;
| | | | - Johan Dicksved
- Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences, 750 07 Uppsala, Sweden;
| | - Rikard Landberg
- Department of Life Sciences, Division of Food and Nutrition Science, Chalmers University of Technology, 412 96 Gothenburg, Sweden;
- Department of Public Health and Clinical Medicine, Umeå University, 901 87 Umeå, Sweden
| |
Collapse
|
4
|
García-López JD, Barbieri F, Baños A, Madero JMG, Gardini F, Montanari C, Tabanelli G. Use of two autochthonous bacteriocinogenic strains as starter cultures in the production of salchichónes, a type of Spanish fermented sausages. Curr Res Food Sci 2023; 7:100615. [PMID: 37881335 PMCID: PMC10594565 DOI: 10.1016/j.crfs.2023.100615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 10/05/2023] [Accepted: 10/08/2023] [Indexed: 10/27/2023] Open
Abstract
In this work, two autochthonous LAB strains (Lactiplantibacillus paraplantarum BPF2 and Pediococcus acidilactici ST6), isolated from spontaneously fermented sausages produced in Spain, were tested to produce Spanish fermented sausages (salchichón) in pilot plants, due to their promising technological and anti-listerial activity. These products were compared with a sample obtained with a commercial starter (RAP) and a spontaneously fermented control sample. Physico-chemical parameters, microbial counts, metagenomic analysis, biogenic amines content and organoleptic profile of the obtained samples were studied to assess the performances of the native starters. In fact, traditional and artisanal products obtained through spontaneous fermentations can represent an important biodiversity reservoir of strains to be exploited as new potential starter cultures, to improve the safety, quality and local differentiation of traditional products. The data underlined that ST6 strain resulted in a final lower percentage if compared with the other LAB used as starter cultures. The use of starters reduced the BA concentration observed in the sausages obtained with spontaneous fermentation and the BPF2 and ST6 strains were able to decrease the level of products rancidity. Moreover, a challenge test against L. monocytogenes were performed. The data confirmed the effectiveness in the inhibition of L. monocytogenes by the two bacteriocinogenic strains tested, with respect to RAP and control samples, highlighting their ability to produce bacteriocins in real food systems. This work demonstrated the promising application in meat industry of these autochthonous strains as starter cultures to improve sensory differentiation and recognizability of typical fermented sausages.
Collapse
Affiliation(s)
| | - Federica Barbieri
- Department of Agricultural and Food Sciences, University of Bologna, 47521, Cesena, Italy
| | - Alberto Baños
- Department of Microbiology, DOMCA S.A.U, 18620, Alhendín, Spain
| | | | - Fausto Gardini
- Department of Agricultural and Food Sciences, University of Bologna, 47521, Cesena, Italy
| | - Chiara Montanari
- Department of Agricultural and Food Sciences, University of Bologna, 47521, Cesena, Italy
| | - Giulia Tabanelli
- Interdepartmental Center for Industrial Agri-Food Research, University of Bologna, 47521, Cesena, Italy
- Department of Agricultural and Food Sciences, University of Bologna, 40127, Bologna, Italy
| |
Collapse
|
5
|
Van der Veken D, Poortmans M, Dewulf L, Fraeye I, Michiels C, Leroy F. Challenge tests reveal limited outgrowth of proteolytic Clostridium botulinum during the production of nitrate- and nitrite-free fermented sausages. Meat Sci 2023; 200:109158. [PMID: 36905786 DOI: 10.1016/j.meatsci.2023.109158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/15/2022] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
Nitrate and nitrite salts perform a versatile role in fermented meats, including the inhibition of food pathogens (in particular proteolytic group I Clostridium botulinum). Despite the increasing interest in clean-label products, little is known about the behaviour of this pathogen in response to the removal of chemical preservatives from fermented meat formulations. Therefore, challenge tests with a cocktail of nontoxigenic group I C. botulinum strains were performed to produce nitrate/nitrite-free fermented sausages under different acidification conditions and starter culture formulations, including the use of an anticlostridial Mammaliicoccus sciuri strain. Results showed limited outgrowth of C. botulinum, even in the absence of acidification. The anticlostridial starter culture did not lead to an additional inhibitory effect. The selective plating procedure adopted within this study proofed robust to follow germination and growth of C. botulinum, inhibiting common fermentative meat microbiota. The challenge tests constitute a suitable tool to assess the behaviour of this food pathogen within fermented meats upon nitrate- and nitrite omission.
Collapse
Affiliation(s)
- David Van der Veken
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Marijke Poortmans
- Laboratory of Food Microbiology and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Lore Dewulf
- Meat Technology & Science of Protein-Rich Foods, Department of Microbial and Molecular Systems, Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven Technology Campus Ghent, Ghent, Belgium
| | - Ilse Fraeye
- Meat Technology & Science of Protein-Rich Foods, Department of Microbial and Molecular Systems, Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven Technology Campus Ghent, Ghent, Belgium
| | - Chris Michiels
- Laboratory of Food Microbiology and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Frédéric Leroy
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium.
| |
Collapse
|
6
|
Charmpi C, Thamsborg KKM, Mikalsen SO, Magnussen E, Sosa Fajardo A, Van der Veken D, Leisner JJ, Leroy F. Bacterial species diversity of traditionally ripened sheep legs from the Faroe Islands (skerpikjøt). Int J Food Microbiol 2023; 386:110023. [PMID: 36463775 DOI: 10.1016/j.ijfoodmicro.2022.110023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/03/2022] [Accepted: 11/16/2022] [Indexed: 11/27/2022]
Abstract
Skerpikjøt is a traditionally ripened sheep leg product from the Faroe Islands, constituting a relatively underexplored microbial ecosystem. The objective of this study is to achieve a deeper understanding of the microbial composition of this artisanal product. Nine ripened hind legs, obtained from three different producers, were assessed regarding their bacterial communities and contents of biogenic amines, including both surface and core samples. Biogenic amine concentrations were generally low, although one sample had a somewhat elevated concentration of cadaverine. Bacterial diversity was investigated by culture-dependent and culture-independent techniques. Gram-positive catalase-positive cocci (GCC) constituted the most abundant group. Within this group, Staphylococcus equorum was the most prevailing species, followed by Kocuria sp., Mammaliicoccus vitulinus, and Staphylococcus saprophyticus. Lactic acid bacteria prevailed in only one sample and were mainly represented by Latilactobacillus curvatus. Enterobacterial communities were characterised by the prevalence of Serratia proteamaculans. Despite the majority of GCC, Clostridium putrefaciens was the most abundant bacterial species in some core samples. Taken together, the culture-dependent and culture-independent identification methods gave complementary results.
Collapse
Affiliation(s)
- Christina Charmpi
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Elsene, Belgium
| | - Kristian Key Milan Thamsborg
- Department of Veterinary and Animal Sciences, University of Copenhagen, Grønnegårdsvej 15, 1870 Frederiksberg C, Denmark
| | - Svein-Ole Mikalsen
- Faculty of Science and Technology, University of the Faroe Islands, Vestarabryggja 15, FO-100 Tórshavn, Faroe Islands
| | - Eyðfinn Magnussen
- Faculty of Science and Technology, University of the Faroe Islands, Vestarabryggja 15, FO-100 Tórshavn, Faroe Islands
| | - Ana Sosa Fajardo
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Elsene, Belgium
| | - David Van der Veken
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Elsene, Belgium
| | - Jørgen J Leisner
- Department of Veterinary and Animal Sciences, University of Copenhagen, Grønnegårdsvej 15, 1870 Frederiksberg C, Denmark
| | - Frédéric Leroy
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Elsene, Belgium.
| |
Collapse
|
7
|
Rocchetti G, Rebecchi A, Maria Lopez C, Dallolio M, Dallolio G, Trevisan M, Lucini L. Impact of axenic and mixed starter cultures on metabolomic and sensory profiles of ripened Italian salami. Food Chem 2023; 402:134182. [DOI: 10.1016/j.foodchem.2022.134182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 08/25/2022] [Accepted: 09/06/2022] [Indexed: 10/14/2022]
|
8
|
Dučić M, Barcenilla C, Cobo-Díaz JF, López M, Álvarez-Ordóñez A, Prieto M. High pressure processing at the early stages of ripening enhances the safety and quality of dry fermented sausages elaborated with or without starter culture. Food Res Int 2023; 163:112162. [PMID: 36596111 DOI: 10.1016/j.foodres.2022.112162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 11/03/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022]
Abstract
To study the quality of chorizo de León dry fermented sausages (DFS), high pressure processing (HPP) applied at the early stages of ripening and the use of a functional starter culture were evaluated as additional safety measures. Furthermore, the ability to control the populations of artificially inoculated Listeria monocytogenes and Salmonella Typhimurium was investigated and the evolution of microbial communities was assessed by amplicon 16S rRNA metataxonomics. The use of HPP and the starter culture, independently or combined, induced a reduction of Listeria monocytogenes of 1.5, 4.3 and > 4.8 log CFU/g respectively, as compared to control. Salmonella Typhimurium counts were under the detection limit (<1 log) in all treated end-product samples. Both additional measures reduced the activity of undesirable microbiota, such as Serratia and Brochothrix, during the production of DFS. Moreover, the starter culture highly influencedthe taxonomic profile of samples.No adverse sensory effects were observed, and panelists showed preference for HPP treated DFS. In conclusion, this new approach of applying HPP at the early stages of ripening of DFS in combination with the use of a defined starter culture improved the safety and quality of the meat product.
Collapse
Affiliation(s)
- Miroslav Dučić
- Department of Veterinary Medicine, Faculty of Agriculture, University of Novi Sad, Novi Sad, Serbia.
| | - Coral Barcenilla
- Department of Food Hygiene and Technology, Universidad de León, León, Spain.
| | - José F Cobo-Díaz
- Department of Food Hygiene and Technology, Universidad de León, León, Spain.
| | - Mercedes López
- Department of Food Hygiene and Technology, Universidad de León, León, Spain; Institute of Food Science and Technology, Universidad de León, León, Spain.
| | - Avelino Álvarez-Ordóñez
- Department of Food Hygiene and Technology, Universidad de León, León, Spain; Institute of Food Science and Technology, Universidad de León, León, Spain.
| | - Miguel Prieto
- Department of Food Hygiene and Technology, Universidad de León, León, Spain; Institute of Food Science and Technology, Universidad de León, León, Spain.
| |
Collapse
|
9
|
Autochthonous starter culture selection for Salame Piemonte PGI production. Food Res Int 2022; 162:112007. [DOI: 10.1016/j.foodres.2022.112007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 09/25/2022] [Accepted: 09/27/2022] [Indexed: 11/21/2022]
|
10
|
Tabanelli G, Barbieri F, Soglia F, Magnani R, Gardini G, Petracci M, Gardini F, Montanari C. Safety and technological issues of dry fermented sausages produced without nitrate and nitrite. Food Res Int 2022; 160:111685. [DOI: 10.1016/j.foodres.2022.111685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 11/26/2022]
|
11
|
Taxonomical Identification and Safety Characterization of Lactobacillaceae from Mediterranean Natural Fermented Sausages. Foods 2022; 11:foods11182776. [PMID: 36140904 PMCID: PMC9497648 DOI: 10.3390/foods11182776] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/30/2022] [Accepted: 09/05/2022] [Indexed: 11/20/2022] Open
Abstract
Fermented meat products represent an important industrial sector in Europe, particularly in the Mediterranean Countries (MC), where the presence of numerous local productions, still obtained through spontaneous fermentation, is recognized as a formidable treasure chest of unexplored microbial biodiversity. Lactobacillaceae naturally occurring in fifteen spontaneously fermented sausages from MC (Italy, Spain, Croatia, and Slovenia) were isolated and taxonomically characterized using molecular techniques. Additionally, a safety assessment for the presence of antibiotic resistances and biogenic amine (BA) production was performed to determine their suitability as autochthonous starter cultures. Molecular typing, performed using REP-PCR, discriminated 151 strains belonging to Latilactobacillus sakei (59.6%), Latilactobacillus curvatus (26.5%) and Companilactobacillus alimentarius (13.9%). The minimum inhibitory concentrations (MICs) of eight different antibiotics revealed a high resistance to streptomycin (27%), tetracycline (16%), followed by gentamycin (14%) and kanamycin (13%). Interestingly, the results showed a geographical distribution of resistant biotypes. tetM/tetS or ermB genes were identified in only six strains. The amino-biogenic potential of the strains was assessed, confirming the absence of this trait among L. sakei, while a high number of producer strains was found among L. curvatus. On the 151 analyzed strains, 45 demonstrated safety traits for their future use as starter food cultures. These results open the way to further studies on the technological properties of these promising autochthonous strains, strongly linked to the Mediterranean environment.
Collapse
|
12
|
Li XM, Deng JY, Wu Y, Nie W, Wang ZM, Zhou H, Xu BC. Insight into the correlation between microbial diversity and flavor profiles of traditional dry-cured duck from the metabolomic perspective. Food Res Int 2022; 156:111349. [DOI: 10.1016/j.foodres.2022.111349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 05/01/2022] [Accepted: 05/03/2022] [Indexed: 11/04/2022]
|
13
|
Skowron K, Budzyńska A, Grudlewska-Buda K, Wiktorczyk-Kapischke N, Andrzejewska M, Wałecka-Zacharska E, Gospodarek-Komkowska E. Two Faces of Fermented Foods-The Benefits and Threats of Its Consumption. Front Microbiol 2022; 13:845166. [PMID: 35330774 PMCID: PMC8940296 DOI: 10.3389/fmicb.2022.845166] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/15/2022] [Indexed: 12/17/2022] Open
Abstract
In underdeveloped and developing countries, due to poverty, fermentation is one of the most widely used preservation methods. It not only allows extending the shelf life of food, but also brings other benefits, including inhibiting the growth of pathogenic microorganisms, improving the organoleptic properties and product digestibility, and can be a valuable source of functional microorganisms. Today, there is a great interest in functional strains, which, in addition to typical probiotic strains, can participate in the treatment of numerous diseases, disorders of the digestive system, but also mental diseases, or stimulate our immune system. Hence, fermented foods and beverages are not only a part of the traditional diet, e.g., in Africa but also play a role in the nutrition of people around the world. The fermentation process for some products occurs spontaneously, without the use of well-defined starter cultures, under poorly controlled or uncontrolled conditions. Therefore, while this affordable technology has many advantages, it can also pose a potential health risk. The use of poor-quality ingredients, inadequate hygiene conditions in the manufacturing processes, the lack of standards for safety and hygiene controls lead to the failure food safety systems implementation, especially in low- and middle-income countries or for small-scale products (at household level, in villages and scale cottage industries). This can result in the presence of pathogenic microorganisms or their toxins in the food contributing to cases of illness or even outbreaks. Also, improper processing and storage, as by well as the conditions of sale affect the food safety. Foodborne diseases through the consumption of traditional fermented foods are not reported frequently, but this may be related, among other things, to a low percentage of people entering healthcare care or weaknesses in foodborne disease surveillance systems. In many parts of the world, especially in Africa and Asia, pathogens such as enterotoxigenic and enterohemorrhagic Escherichia coli, Shigella spp., Salmonella spp., enterotoxigenic Staphylococcus aureus, Listeria monocytogenes, and Bacillus cereus have been detected in fermented foods. Therefore, this review, in addition to the positive aspects, presents the potential risk associated with the consumption of this type of products.
Collapse
Affiliation(s)
- Krzysztof Skowron
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Anna Budzyńska
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Katarzyna Grudlewska-Buda
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Natalia Wiktorczyk-Kapischke
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Małgorzata Andrzejewska
- Department of Hygiene, Epidemiology, Ergonomy and Postgraduate Education, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Ewa Wałecka-Zacharska
- Department of Food Hygiene and Consumer Health, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Eugenia Gospodarek-Komkowska
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| |
Collapse
|
14
|
Chen W, Lv X, Tran VT, Maruyama JI, Han KH, Yu JH. Editorial: From Traditional to Modern: Progress of Molds and Yeasts in Fermented-Food Production. Front Microbiol 2022; 13:876872. [PMID: 35401444 PMCID: PMC8992652 DOI: 10.3389/fmicb.2022.876872] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 02/21/2022] [Indexed: 11/26/2022] Open
Affiliation(s)
- Wanping Chen
- Department of Molecular Microbiology and Genetics, Georg-August-Universität Göttingen, Göttingen, Germany
- *Correspondence: Wanping Chen
| | - Xucong Lv
- College of Biological Science and Technology, Fuzhou University, Fuzhou, China
| | - Van-Tuan Tran
- Department of Microbiology & National Key Laboratory of Enzyme and Protein Technology, University of Science, Vietnam National University, Hanoi, Vietnam
| | | | - Kap-Hoon Han
- Department of Pharmaceutical Engineering, Woosuk University, Wanju, South Korea
| | - Jae-Hyuk Yu
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, United States
- Department of Systems Biotechnology, Konkuk Institute of Science and Technology, Konkuk University, Seoul, South Korea
| |
Collapse
|
15
|
Anagnostopoulos DA, Tsaltas D. Current Status, Recent Advances, and Main Challenges on Table Olive Fermentation: The Present Meets the Future. Front Microbiol 2022; 12:797295. [PMID: 35095807 PMCID: PMC8793684 DOI: 10.3389/fmicb.2021.797295] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 12/01/2021] [Indexed: 01/18/2023] Open
Abstract
Table olives are among the most well-known fermented foods, being a vital part of the Mediterranean pyramid diet. They constitute a noteworthy economic factor for the producing countries since both their production and consumption are exponentially increasing year by year, worldwide. Despite its significance, olive’s processing is still craft based, not changed since antiquity, leading to the production of an unstable final product with potential risk concerns, especially related to deterioration. However, based on industrial needs and market demands for reproducible, safe, and healthy products, the modernization of olive fermentation processing is the most important challenge of the current decade. In this sense, the reduction of sodium content and more importantly the use of suitable starter cultures, exhibiting both technological and potential probiotic features, to drive the process may extremely contribute to this need. Prior, to achieve in this effort, the full understanding of table olive microbial ecology during fermentation, including an in-depth determination of microbiota presence and/or dominance and its functionality (genes responsible for metabolite production) that shape the sensorial characteristics of the final product, is a pre-requisite. The advent of meta-omics technology could provide a thorough study of this complex ecosystem, opening in parallel new insights in the field, such as the concept of microbial terroir. Herein, we provide an updated overview in the field of olive fermentation, pointing out some important challenges/perspectives that could be the key to the olive sector’s advancement and modernization.
Collapse
Affiliation(s)
- Dimitrios A Anagnostopoulos
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Limassol, Cyprus
| | - Dimitrios Tsaltas
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Limassol, Cyprus
| |
Collapse
|
16
|
Coton M, Deniel F, Mounier J, Joubrel R, Robieu E, Pawtowski A, Jeuge S, Taminiau B, Daube G, Coton E, Frémaux B. Microbial Ecology of French Dry Fermented Sausages and Mycotoxin Risk Evaluation During Storage. Front Microbiol 2021; 12:737140. [PMID: 34803951 PMCID: PMC8601720 DOI: 10.3389/fmicb.2021.737140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 10/04/2021] [Indexed: 01/04/2023] Open
Abstract
Dry fermented sausages are produced worldwide by well-controlled fermentation processes involving complex microbiota including many bacterial and fungal species with key technological roles. However, to date, fungal diversity on sausage casings during storage has not been fully described. In this context, we studied the microbial communities from dry fermented sausages naturally colonized or voluntarily surface inoculated with molds during storage using both culture-dependent and metabarcoding methods. Staphylococci and lactic acid bacteria largely dominated in samples, although some halotolerant genera (e.g., Halomonas, Tetragenococcus, and Celerinatantimonas spp.) were also frequently observed. Fungal populations varied from 7.2 to 9.8 log TFU/cm2 sausage casing during storage, suggesting relatively low count variability among products. Fungal diversity identified on voluntarily inoculated casings was lower (dominated by Penicillium nalgiovense and Debaryomyces hansenii) than naturally environment-inoculated fermented sausages (colonized by P. nalgiovense, Penicillium nordicum, and other Penicillium spp. and sporadically by Scopulariopsis sp., D. hansenii, and Candida zeylanoïdes). P. nalgiovense and D. hansenii were systematically identified, highlighting their key technological role. The mycotoxin risk was then evaluated, and in situ mycotoxin production of selected mold isolates was determined during pilot-scale sausage productions. Among the identified fungal species, P. nalgiovense was confirmed not to produce mycotoxins. However, some P. nordicum, Penicillium chrysogenum, Penicillium bialowienzense, Penicillium brevicompactum, and Penicillium citreonigrum isolates produced one or more mycotoxins in vitro. P. nordicum also produced ochratoxin A during pilot-scale sausage productions using “worst-case” conditions in the absence of biotic competition. These data provide new knowledge on fermented sausage microbiota and the potential mycotoxin risk during storage.
Collapse
Affiliation(s)
- Monika Coton
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - Franck Deniel
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - Jérôme Mounier
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - Rozenn Joubrel
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - Emeline Robieu
- IFIP French Pork Research Institute, Maisons-Alfort, France
| | - Audrey Pawtowski
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - Sabine Jeuge
- IFIP French Pork Research Institute, Maisons-Alfort, France
| | - Bernard Taminiau
- Faculté de Médecine Vétérinaire, Laboratoire de Microbiologie des Denrées Alimentaires, Fundamental and Applied Research for Animal and Health (FARAH), Université de Liège, Liège, Belgium
| | - Georges Daube
- Faculté de Médecine Vétérinaire, Laboratoire de Microbiologie des Denrées Alimentaires, Fundamental and Applied Research for Animal and Health (FARAH), Université de Liège, Liège, Belgium
| | - Emmanuel Coton
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | | |
Collapse
|
17
|
Dimitrakopoulou ME, Panteleli E, Vantarakis A. Improved PCR-DGGE analysis by emulsion-PCR for the determination of food geographical origin: A case study on Greek PDO "avgotaracho Mesolonghiou". Curr Res Food Sci 2021; 4:746-751. [PMID: 34746808 PMCID: PMC8554341 DOI: 10.1016/j.crfs.2021.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/29/2021] [Accepted: 10/11/2021] [Indexed: 11/15/2022] Open
Abstract
Greek avgotaracho Mesolonghiou (fish eggs from Flathead Mullet) is a highly valuable food product which holds Protected Destination of Origin status. The aim of this work was to use PCR-DGGE technique to examine whether there is a correlation between bacteria population in fish eggs and geographical origin. Cluster analysis of fish eggs from three geographical locations (Mesolonghi, Australia and Mauritania) discriminated samples according to their provenance. Moreover, we utilized emulsion-PCR amplification in DGGE analysis in order to investigate whether we could obtain further information about food products’ bacteria communities. PCR-DGGE proved to be a suitable method for fish eggs traceability, moreover emulsion PCR-DGGE provides better results. Emulsion-PCR can face up the existing limitations of conventional PCR and thus can be demonstrated as alternative molecular technique for complex and processed matrices, regarding food traceability and authentication. Traceability of Greek PDO “avgotaracho Mesolonghiou” by PCR-DGGE is presented. Emulsion PCR for DGGE” improves analysis of microbial communities. Emulsion PCR for DGGE improves geographical traceability of food. Emulsion PCR as an alternative molecular method for food traceability and authentication.
Collapse
Affiliation(s)
| | - Efstratia Panteleli
- Department of Public Health, Medical School, University of Patras, Patras, Greece
| | - Apostolos Vantarakis
- Department of Public Health, Medical School, University of Patras, Patras, Greece
| |
Collapse
|
18
|
Barbieri F, Tabanelli G, Montanari C, Dall’Osso N, Šimat V, Smole Možina S, Baños A, Özogul F, Bassi D, Fontana C, Gardini F. Mediterranean Spontaneously Fermented Sausages: Spotlight on Microbiological and Quality Features to Exploit Their Bacterial Biodiversity. Foods 2021; 10:2691. [PMID: 34828970 PMCID: PMC8624356 DOI: 10.3390/foods10112691] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 01/04/2023] Open
Abstract
The wide array of spontaneously fermented sausages of the Mediterranean area can represent a reservoir of microbial biodiversity and can be an important source of new technological and functional strains able to preserve product properties, counteracting the impoverishment of their organoleptic typical features due to the introduction of commercial starter cultures. We analysed 15 artisanal salamis from Italy, Spain, Croatia and Slovenia to evaluate the microbiota composition, through culture-dependent and culture-independent techniques (i.e., metagenomic analysis), chemical-physical features, biogenic amines and aroma profile. The final pH varied according to origin and procedures (e.g., higher pH in Italian samples due to long ripening and mold growth). Lactic acid bacteria (LAB) and coagulase-negative cocci (CNC) were the dominant population, with highest LAB counts in Croatian and Italian samples. Metagenomic analysis showed high variability in qualitative and quantitative microbial composition: among LAB, Latilactobacillus sakei was the dominant species, but Companilactobacillus spp. was present in high amounts (45-55% of the total ASVs) in some Spanish sausages. Among staphylococci, S. epidermidis, S. equorum, S. saprophyticus, S. succinus and S. xylosus were detected. As far as biogenic amines, tyramine was always present, while histamine was found only in two Spanish samples. These results can valorize the bacterial genetic heritage present in Mediterranean products, to find new candidates of autochthonous starter cultures or bioprotective agents.
Collapse
Affiliation(s)
- Federica Barbieri
- Department of Agricultural and Food Sciences, University of Bologna, 47521 Cesena, Italy; (F.B.); (N.D.); (F.G.)
| | - Giulia Tabanelli
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Bologna, Italy
- Interdepartmental Center for Industrial Agri-Food Research, University of Bologna, 47521 Cesena, Italy;
| | - Chiara Montanari
- Interdepartmental Center for Industrial Agri-Food Research, University of Bologna, 47521 Cesena, Italy;
| | - Nicolò Dall’Osso
- Department of Agricultural and Food Sciences, University of Bologna, 47521 Cesena, Italy; (F.B.); (N.D.); (F.G.)
| | - Vida Šimat
- University Department of Marine Studies, University of Split, 21000 Split, Croatia;
| | - Sonja Smole Možina
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Alberto Baños
- Department of Microbiology, DOMCA S.A.U., 18620 Alhendín, Spain;
| | - Fatih Özogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, Adana 01330, Turkey;
| | - Daniela Bassi
- Department for Sustainable Food Process (DISTAS), Università Cattolica del Sacro Cuore, 26100 Cremona, Italy; (D.B.); (C.F.)
| | - Cecilia Fontana
- Department for Sustainable Food Process (DISTAS), Università Cattolica del Sacro Cuore, 26100 Cremona, Italy; (D.B.); (C.F.)
| | - Fausto Gardini
- Department of Agricultural and Food Sciences, University of Bologna, 47521 Cesena, Italy; (F.B.); (N.D.); (F.G.)
- Interdepartmental Center for Industrial Agri-Food Research, University of Bologna, 47521 Cesena, Italy;
| |
Collapse
|
19
|
Lopez CM, Dallolio G, Bonilauri P, Rebecchi A. Strategies for Nitrite Replacement in Fermented Sausages and Effect of High Pressure Processing against Salmonella spp. and Listeria innocua. Foods 2021; 10:2617. [PMID: 34828893 PMCID: PMC8617797 DOI: 10.3390/foods10112617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 11/17/2022] Open
Abstract
The development of nitrite-free meat products is a current industrial concern. Many efforts have been attempted to replace the nitrite effect in cured meats colour formation and pathogens control. Our previous work evidenced that lactic acid and a cold ripening were the best hurdle technologies for nitrite-free fermented sausages from metabolomics. In the first part of this work, we investigated the effect of lactic acid compared with both two alternative additives (glucono-D-lactone and a mix of sodium di-acetate/sodium lactate) and with low-nitrite sausages, all of them following either cold or traditional ripening. For this purpose, microbiological analysis, pH, water activity (aw), and a sensory study were performed. All nitrite-free sausages (cold or traditional ripened) showed quality and safety traits similar to low-nitrite traditionally ripened ones used as control. In addition, sensory study revealed that sausages with lactic acid were the most preferred cold ripened samples, supporting that this is an optimal strategy for the production of nitrite-free sausages. We selected this product for further studies. Indeed, in the second part, we evaluated the impact of ripening, and other hurdle technologies as High Pressure Processing (HPP) and under-vacuum storage against Listeria innocua and Salmonella spp. by a challenge test. Maximal declines were obtained for ripening along with HPP (i.e., 4.74 and 3.83 log CFU/g for L. innocua and Salmonella spp., respectively), suggesting that HPP might guarantee nitrite-free sausages safety. Although the quality of raw materials remains essential, these hurdle strategies largely contributed to nitrite-free sausages safety, offering a promising tool for the meat industry.
Collapse
Affiliation(s)
- Constanza Maria Lopez
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Bissolati 72/74, 26100 Cremona, Italy; (C.M.L.); (G.D.)
| | - Giuliano Dallolio
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Bissolati 72/74, 26100 Cremona, Italy; (C.M.L.); (G.D.)
| | - Paolo Bonilauri
- Istituto Zooprofilattico Sperimentale della Lombardia ed Emilia-Romagna (IZSLER), Via Bianchi 9, 25124 Brescia, Italy;
| | - Annalisa Rebecchi
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Bissolati 72/74, 26100 Cremona, Italy; (C.M.L.); (G.D.)
| |
Collapse
|
20
|
Incidence of Tetracycline and Erythromycin Resistance in Meat-Associated Bacteria: Impact of Different Livestock Management Strategies. Microorganisms 2021; 9:microorganisms9102111. [PMID: 34683432 PMCID: PMC8537249 DOI: 10.3390/microorganisms9102111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 09/23/2021] [Accepted: 10/01/2021] [Indexed: 11/16/2022] Open
Abstract
The extensive use of antibiotics as growth promoters, or their continued abusive misuse to cure or prevent the onset of bacterial infections as occurs in the intensive farming, may have played a pivotal role in the spread of reservoirs of antibiotic resistance (AR) among food-associated bacteria including pathogens representing risks to human health. The present study compares the incidence of tetracycline and erythromycin resistances in lactic acid bacteria (LAB) and coagulase negative staphylococci (CNS) from fermented products manufacturing using meat from intensive animal husbandry (industrialized manufacturing Italian salami) and from extensive farms (artisanal sausages facilities pork and llama Argentinean sausages). A higher incidence of tetracycline resistance (TET-R) compared to erythromycin resistance (ERY-R) was observed among the 205 isolates. Unlike CNS strains, the LAB showed a significant correlation between the TET-R and the ERY-R phenotypes. Genotypic assessment shows a high correlation with tetK and tetM for the TET-R strains and with ermB and ermC for the ERY-R strains. Multiple correspondence analyses have highlighted the association between AR phenotypes and CNS species isolated from Italian salami, while the susceptible phenotypes were associated with the LAB species from Argentinean sausages. Since antibiotic resistance in meat-associated bacteria is a very complex phenomenon, the assessment of bacterial resistance in different environmental contexts with diverse farming practices and food production technologies will help in monitoring the factors influencing AR emergence and spread in animal production.
Collapse
|
21
|
Application of Latilactobacillus curvatus into Pickled Shrimp (Litopenaeus Vannamei). JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2021. [DOI: 10.22207/jpam.15.3.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Latilactobacillus curvatus has a strong carbohydrate fermentative ability and antibacterial ability. It is considered as a promising probiotic by its excellent fermentation attributes and health advantages. Pickled shrimp derived from the fermentation process is highly appreciated by its unique texture, taste and flavor. However, this product is easily decomposed by spoilage bacteria especially Staphylococcus. This research evaluated the inoculation of L. curvatus (0.1-0.5 %) and different fermentation temperatures (28-30 oC) on the reduction of Staphylococcus aureus, pH and overall acceptance of the pickled shrimp after 6 weeks of fermentation. Results showed that the fermentation process should be conducted at 29 oC with 0.3 % Latilactobacillus curvatus (at initial density 9 log cfu/ml) to reduce pH to 3.70, completely against Staphylococcus aureus, obtain the highest sensory score (8.91).
Collapse
|
22
|
Van Reckem E, Claeys E, Charmpi C, Sosa Fajardo A, Van der Veken D, Maes D, Weckx S, De Vuyst L, Leroy F. High-throughput amplicon sequencing to assess the impact of processing factors on the development of microbial communities during spontaneous meat fermentation. Int J Food Microbiol 2021; 354:109322. [PMID: 34247021 DOI: 10.1016/j.ijfoodmicro.2021.109322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/25/2021] [Accepted: 06/26/2021] [Indexed: 01/04/2023]
Abstract
During spontaneous meat fermentation, diverse microbial communities develop over time. These communities consist mainly of lactic acid bacteria (LAB) and coagulase-negative staphylococci (CNS), of which the species composition is influenced by the fermentation temperature and the level of acidification. Recent development and application of amplicon-based high-throughput sequencing (HTS) methods have allowed to gain deeper insights into the microbial communities of fermented meats. The aim of the present study was to investigate the effect of different fermentation temperatures and acidification profiles on the CNS communities during spontaneous fermentation, using a previously developed amplicon-based HTS method targeting both the 16S rRNA and tuf genes. Spontaneous fermentations were performed with five different lots of meat to assess inter-lot variability. The process influence was investigated by fermenting the meat batters for seven days at different fermentation temperatures (23 °C, 30 °C, and 37 °C) and in the absence or presence of added glucose to simulate different acidification levels. Additionally, the results were compared with a starter culture-initiated fermentation process. The data revealed that the fermentation temperature was the most influential processing condition in shaping the microbial communities during spontaneous meat fermentation processes, whereas differences in pH were only responsible for minor shifts in the microbial profiles. Furthermore, the CNS communities showed a great level of variability, which depended on the initial microbial communities present and their competitiveness.
Collapse
Affiliation(s)
- Emiel Van Reckem
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Ewout Claeys
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Christina Charmpi
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Ana Sosa Fajardo
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - David Van der Veken
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - Dominique Maes
- Research Group of Structural Biology Brussels (SBB), 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
| | - Frédéric Leroy
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium.
| |
Collapse
|
23
|
Parlindungan E, Lugli GA, Ventura M, van Sinderen D, Mahony J. Lactic Acid Bacteria Diversity and Characterization of Probiotic Candidates in Fermented Meats. Foods 2021; 10:1519. [PMID: 34359389 PMCID: PMC8305854 DOI: 10.3390/foods10071519] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/24/2021] [Accepted: 06/28/2021] [Indexed: 12/28/2022] Open
Abstract
Probiotics are defined as live microorganisms which confer health benefits to the host when administered in adequate amounts. Many lactic acid bacteria (LAB) strains have been classified as probiotics and fermented foods are an excellent source of such LAB. In this study, novel probiotic candidates from two fermented meats (pancetta and prosciutto) were isolated and characterized. LAB populations present in pancetta and prosciutto were evaluated and Lactiplantibacillus plantarum was found to be the dominant species. The antagonistic ability of selected isolates against LAB and non-LAB strains was investigated, in particular, the ability to produce anti-microbial compounds including organic acids and bacteriocins. Probiotic characteristics including antibiotic susceptibility, hydrophobicity and autoaggregation capacity; and ability to withstand simulated gastric juice, bile salt, phenol and NaCl were assessed. Among the characterized strains, L. plantarum 41G isolated from prosciutto was identified as the most robust probiotic candidate compared. Results from this study demonstrate that artisanal fermented meat is a rich source of novel strains with probiotic potential.
Collapse
Affiliation(s)
- Elvina Parlindungan
- School of Microbiology & APC Microbiome Ireland, University College Cork, Western Road, T12 YT20 Cork, Ireland;
| | - Gabriele A. Lugli
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43121 Parma, Italy; (G.A.L.); (M.V.)
| | - Marco Ventura
- Laboratory of Probiogenomics, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43121 Parma, Italy; (G.A.L.); (M.V.)
| | - Douwe van Sinderen
- School of Microbiology & APC Microbiome Ireland, University College Cork, Western Road, T12 YT20 Cork, Ireland;
| | - Jennifer Mahony
- School of Microbiology & APC Microbiome Ireland, University College Cork, Western Road, T12 YT20 Cork, Ireland;
| |
Collapse
|
24
|
Can we control microbiota in spontaneous food fermentation? – Chinese liquor as a case example. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
25
|
Van Reckem E, De Vuyst L, Weckx S, Leroy F. Next-generation sequencing to enhance the taxonomic resolution of the microbiological analysis of meat and meat-derived products. Curr Opin Food Sci 2021. [DOI: 10.1016/j.cofs.2020.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
26
|
Fermented food products in the era of globalization: tradition meets biotechnology innovations. Curr Opin Biotechnol 2020; 70:36-41. [PMID: 33232845 DOI: 10.1016/j.copbio.2020.10.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/18/2020] [Accepted: 10/19/2020] [Indexed: 02/06/2023]
Abstract
Omics tools offer the opportunity to characterize and trace traditional and industrial fermented foods. Bioinformatics, through machine learning, and other advanced statistical approaches, are able to disentangle fermentation processes and to predict the evolution and metabolic outcomes of a food microbial ecosystem. By assembling microbial artificial consortia, the biotechnological advances will also be able to enhance the nutritional value and organoleptics characteristics of fermented food, preserving, at the same time, the potential of autochthonous microbial consortia and metabolic pathways, which are difficult to reproduce. Preserving the traditional methods contributes to protecting the hidden value of local biodiversity, and exploits its potential in industrial processes with the final aim of guaranteeing food security and safety, even in developing countries.
Collapse
|
27
|
Charmpi C, Van Reckem E, Sameli N, Van der Veken D, De Vuyst L, Leroy F. The Use of Less Conventional Meats or Meat with High pH Can Lead to the Growth of Undesirable Microorganisms during Natural Meat Fermentation. Foods 2020; 9:foods9101386. [PMID: 33019548 PMCID: PMC7601081 DOI: 10.3390/foods9101386] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 09/25/2020] [Accepted: 09/29/2020] [Indexed: 12/16/2022] Open
Abstract
The bacterial communities that are established during natural meat fermentation depend on the processing conditions and the type of meat substrate used. Six pork samples of variable quality (reflected in pH values) and six less conventional meats (beef, horse, hare, wild deer, wild duck, and wild boar) were naturally fermented under controlled conditions in model systems. The development of lactic acid bacteria (LAB), coagulase-negative staphylococci (CNS), and enterobacteria was followed using culture-dependent techniques and (GTG)5-PCR fingerprinting of genomic DNA from the isolates obtained. Taken together, Latilactobacillus sakei was the most abundant LAB species, although Latilactobacillus curvatus was more manifest in high-pH pork. Within staphylococci, common species were encountered (i.e., Staphylococcus equorum, Staphylococcus saprophyticus, and Staphylococcus xylosus), although some atypical ones (i.e., Staphylococcus succinus) were also recovered. Within enterobacteria, Serratia spp. prevailed in more acidic pork batches and in beef, whereas Hafnia spp. prevailed in game meat fermentations. Enterobacterial counts were particularly high in fermentations with low acidity, namely for some pork batches, hare, wild duck, and wild boar. These findings should be considered when naturally fermented meat products are manufactured, as the use of game meat or meat with high pH can give rise to safety concerns.
Collapse
|
28
|
Van Reckem E, Charmpi C, Van der Veken D, Borremans W, De Vuyst L, Weckx S, Leroy F. Application of a High-Throughput Amplicon Sequencing Method to Chart the Bacterial Communities that Are Associated with European Fermented Meats from Different Origins. Foods 2020; 9:foods9091247. [PMID: 32906631 PMCID: PMC7555677 DOI: 10.3390/foods9091247] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/02/2020] [Accepted: 09/03/2020] [Indexed: 12/21/2022] Open
Abstract
Insight into the microbial species diversity of fermented meats is not only paramount to gain control over quality development, but also to better understand the link with processing technology and geographical origin. To study the composition of the microbial communities, the use of culture-independent methods is increasingly popular but often still suffers from drawbacks, such as a limited taxonomic resolution. This study aimed to apply a previously developed high-throughput amplicon sequencing (HTS) method targeting the 16S rRNA and tuf genes to characterize the bacterial communities in European fermented meats in greater detail. The data obtained broadened the view on the microbial communities that were associated with the various products examined, revealing the presence of previously underreported subdominant species. Moreover, the composition of these communities could be linked to the specificities of individual products, in particular pH, salt content, and geographical origin. In contrast, no clear links were found between the volatile organic compound profiles of the different products and the country of origin, distinct processing conditions, or microbial communities. Future application of the HTS method offers the potential to further unravel complex microbial communities in fermented meats, as well as to assess the impact of different processing conditions on microbial consortia.
Collapse
|
29
|
Cullere M, Novelli E, Dalle Zotte A. Fat Inclusion Level, NaCl Content and LAB Starter Cultures in the Manufacturing of Italian-Type Ostrich Salami: Weight Loss and Nutritional Traits. Foods 2020; 9:foods9040476. [PMID: 32290184 PMCID: PMC7230627 DOI: 10.3390/foods9040476] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/03/2020] [Accepted: 04/07/2020] [Indexed: 12/12/2022] Open
Abstract
The experiment studied the effect of two different fat inclusion levels (30% and 40%), NaCl contents (2.4 and 2.6%) and starter cultures (lactic acid bacteria (LAB) 6: L. curvatus/S. xylosus; LAB 8: L. sakei/S. xylosus) on the weight loss and nutritional composition of Italian-type ostrich salami. With this purpose, 8 batches of 9 salami each (n = 72) were prepared. Salami were ripened for 20 weeks: weight loss was monitored throughout the experiment, while salami nutritional composition was evaluated at 10 and 20 weeks of ripening. The lowest fat and highest salt inclusion levels provided the highest cumulative weight loss throughout the trial. At 10 weeks of ripening, salami with 40% fat were the richest in moisture and fat, whereas the leanest ones had the highest protein, ash and cholesterol contents. LAB 6 provided salami with the highest moisture and protein, while LAB 8 increased fat and cholesterol contents. At 20 weeks of ripening the proximate composition of ostrich salami was solely affected by fat inclusion level, with similar findings to those observed at 10 weeks. Overall, fat inclusion level had a great impact on the weight loss and nutritional composition of Italian-style ostrich salami. Reducing the NaCl inclusion from 2.6% to 2.4%, the weight loss of ostrich salami was retarded by approximately 1 week, without affecting the nutritional composition of the final product. Results of the study suggested that it is feasible to produce salami with lower fat and salt contents, while ensuring satisfactory product quality.
Collapse
Affiliation(s)
- Marco Cullere
- Department of Animal Medicine, Production and Health, University of Padova, Agripolis, Viale dell’Università, 16, 35020 Legnaro, Italy;
| | - Enrico Novelli
- Department of Comparative Biomedicine and Nutrition, University of Padova, Agripolis, Viale dell’Università, 16, 35020 Legnaro, Italy;
| | - Antonella Dalle Zotte
- Department of Animal Medicine, Production and Health, University of Padova, Agripolis, Viale dell’Università, 16, 35020 Legnaro, Italy;
- Correspondence:
| |
Collapse
|
30
|
Charmpi C, Van der Veken D, Van Reckem E, De Vuyst L, Leroy F. Raw meat quality and salt levels affect the bacterial species diversity and community dynamics during the fermentation of pork mince. Food Microbiol 2020; 89:103434. [PMID: 32138992 DOI: 10.1016/j.fm.2020.103434] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 01/14/2020] [Accepted: 01/17/2020] [Indexed: 11/26/2022]
Abstract
Acidification level and temperature modulate the beneficial consortia of lactic acid bacteria (LAB) and coagulase-negative staphylococci (CNS) during meat fermentation. Less is known about the impact of other factors, such as raw meat quality and salting. These could for instance affect the growth of the pathogen Staphylococcus aureus or of Enterobacterales species, potentially indicative of poor fermentation practice. Therefore, pork batters from either normal or borderline quality (dark-firm-dry, DFD) were compared at various salt concentrations (0-4%) in meat fermentation models. Microbial ecology of the samples was investigated with culture-dependent techniques and (GTG)5-PCR fingerprinting of genomic DNA. Whilst Lactobacillus sakei governed the fermentation of normal meat, Lactobacillus curvatus was more prominent in the fermentation of the DFD meat variant. CNS were favoured during fermentation at rising salt concentrations without much effects on species diversity, consisting mostly of Staphylococcus equorum, Staphylococcus saprophyticus, and Staphylococcus xylosus. During fermentation of DFD meat, S. saprophyticus was less manifest than during that of normal meat. Enterobacterales mainly emerged in DFD meat during fermentation at low salt concentrations. The salt hurdle was insufficient to prevent Enterobacterales when acidification and initial pH were favourable for their growth.
Collapse
Affiliation(s)
- Christina Charmpi
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - David Van der Veken
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Emiel Van Reckem
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Luc De Vuyst
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Frédéric Leroy
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium.
| |
Collapse
|
31
|
Mu Y, Su W, Mu Y, Jiang L. Combined Application of High-Throughput Sequencing and Metabolomics Reveals Metabolically Active Microorganisms During Panxian Ham Processing. Front Microbiol 2020; 10:3012. [PMID: 31998279 PMCID: PMC6966718 DOI: 10.3389/fmicb.2019.03012] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 12/16/2019] [Indexed: 12/17/2022] Open
Abstract
Panxian ham, a traditional Chinese dry-cured ham, is protected by national geographical indication. Similar to other fermented foods, the microbial population of dry-cured ham is pivotal to taste and flavor formation. This study aimed to establish the relationship between microorganisms and metabolites during the spontaneous fermentation of Panxian ham. Multivariate analysis based on metabolomics data revealed that continuous metabolic changes occurred during the entire fermentation process, with the most significant changes occurring in the initial stage of ripening. Thirty-one significantly different metabolites (SDMs) were identified as discriminant factor, and pathway analysis suggested that these metabolites were involved in 30 pathways, including alanine, aspartate, and glutamate metabolism; glycine, serine, and threonine metabolism; and arginine and proline metabolism. Microbial community analysis using the Illumina MiSeq platform indicated that the bacterial community was more complex than the fungal community, and their succession regulation differed during processing. At the genus level, 11 bacteria and five fungi were identified as core microbes, of which Staphylococcus was the dominant bacteria and Debaryomyces and Aspergillus were the dominant fungi. Further, statistical redundancy analysis (RDA) indicated that Staphylococcus, Debaryomyces, and Chromohalobacter promoted the production of amino and fatty acids; Cobetia and Aspergillus were associated with sugar metabolism, and Kushneria, Penicillium, and Yamadazyma were closely related with organic acids. These findings provide fundamental knowledge regarding the metabolically active microorganisms in Panxian ham, helping industrial processors to develop effective strategies for standardizing quality parameters.
Collapse
Affiliation(s)
- Yu Mu
- School of Liquor and Food Engineering, Guizhou University, Guiyang, China.,Guizhou Provincial Key Laboratory of Agricultural and Animal Products Storage and Processing, Guizhou University, Guiyang, China
| | - Wei Su
- School of Liquor and Food Engineering, Guizhou University, Guiyang, China.,Guizhou Provincial Key Laboratory of Agricultural and Animal Products Storage and Processing, Guizhou University, Guiyang, China
| | - Yingchun Mu
- School of Liquor and Food Engineering, Guizhou University, Guiyang, China
| | - Li Jiang
- School of Liquor and Food Engineering, Guizhou University, Guiyang, China
| |
Collapse
|