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Oğuz Ş, Andiç S. Isolation, identification, and characterization of thermophilic lactic acid bacteria isolated from whey of Kars Kashar cheeses. Antonie Van Leeuwenhoek 2024; 117:85. [PMID: 38811466 DOI: 10.1007/s10482-024-01982-w] [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: 03/16/2024] [Accepted: 05/18/2024] [Indexed: 05/31/2024]
Abstract
Kars Kashar cheese is an artisanal pasta-filata type cheese and geographically marked in Eastern Anatolia of Turkey. The aims of this research were to determine for the first time thermophilic lactic acid bacteria (LAB) of Kars Kashar cheese and characterize the technological properties of obtained isolates. In our research, a number of 15 samples of whey were collected from the different villages in Kars. These samples were incubated at 45 °C and used as the source material for isolating thermophilic LAB. A total of 250 colonies were isolated from thermophilic whey, and 217 of them were determined to be presumptive LAB based on their Gram staining and catalase test. A total of 170 isolates were characterized by their phenotypic properties and identified using the MALDI-TOF mass spectrometry method. Phenotypic identification of isolates displayed that Enterococcus and Lactobacillus were the predominant microbiota. According to MALDI-TOF MS identification, 89 isolates were identified as Enterococcus (52.35%), 57 isolates as Lactobacillus (33.53%), 23 isolates as Streptococcus (13.53%), and one isolate as Lactococcus (0.59%). All thermophilic LAB isolates were successfully identified to the species level and it has been observed that MALDI-TOF MS can be successfully used for the identification of selected LAB. The acidification and proteolytic activities of the isolated thermophilic LAB were examined, and the isolates designated for use as starter cultures were also genotypically defined.
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Affiliation(s)
- Şehriban Oğuz
- Department of Food Engineering, Faculty of Engineering, Van Yuzuncu Yil University, 65080, Van, Turkey.
| | - Seval Andiç
- Department of Food Engineering, Faculty of Engineering, Van Yuzuncu Yil University, 65080, Van, Turkey
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2
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Özpınar FB, İspirli H, Kayacan S, Korkmaz K, Dere S, Sagdic O, Alkay Z, Tunçil YE, Ayyash M, Dertli E. Physicochemical and structural characterisation of a branched dextran type exopolysaccharide (EPS) from Weissella confusa S6 isolated from fermented sausage (Sucuk). Int J Biol Macromol 2024; 264:130507. [PMID: 38428765 DOI: 10.1016/j.ijbiomac.2024.130507] [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: 10/01/2023] [Revised: 01/24/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024]
Abstract
Exopolysaccharide (EPS) producing Lactic Acid Bacteria (LAB) species can be presented in distinct environments. In this study, Turkish fermented sausage (sucuk) was tested for the presence of EPS producer LAB strains and slimy-mucoid colonies were selected for further tests. Among the isolates, Weissella confusa strain S6 was identified and tested for the physicochemical characterisation of its EPS. This strain was found to produce 0.74 g L-1 of EPS in modified BHI medium conditions. Structural characterisation of EPS S6 by 1H and 13C NMR demonstrated that EPS S6 was a highly branched dextran type glucan formed by mainly (1 → 2)-linked α-d-glucose units together with low levels of (1 → 3)-linked α-d-glucose units as branching points. This structure was further confirmed by methylation analysis detected by GC-MS. An average molecular weight of 8 × 106 Da was detected for dextran S6. The FTIR analysis supported the dextran structure and revealed the presence of distinct functional groups within dextran S6 structure. A strong thermal profile was observed for dextran S6 detected by DSC and TGA analysis and dextran S6 revealed a degradation temperature of 289 °C. In terms of physical status, dextran S6 showed amorphous nature detected by XRD analysis. SEM analysis of dextran S6 demonstrated its rough, compact and porous morphology whereas AFM analysis of dextran S6 detected in its water solution showed the irregularity with no clear cross-link within the dextran chains. These technological features of dextran S6 suggests its potential to be used for in situ or ex situ application during meat fermentations.
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Affiliation(s)
- Fatma Beyza Özpınar
- Yildiz Technical University, Chemical and Metallurgical Engineering Faculty, Food Engineering Department, Istanbul, Turkiye
| | - Hümeyra İspirli
- Bayburt University, Engineering Faculty, Food Engineering Department, Bayburt, Turkiye
| | - Selma Kayacan
- Yildiz Technical University, Chemical and Metallurgical Engineering Faculty, Food Engineering Department, Istanbul, Turkiye
| | - Kader Korkmaz
- Yildiz Technical University, Chemical and Metallurgical Engineering Faculty, Food Engineering Department, Istanbul, Turkiye
| | - Sevda Dere
- Yildiz Technical University, Chemical and Metallurgical Engineering Faculty, Food Engineering Department, Istanbul, Turkiye
| | - Osman Sagdic
- Yildiz Technical University, Chemical and Metallurgical Engineering Faculty, Food Engineering Department, Istanbul, Turkiye
| | - Zuhal Alkay
- Necmettin Erbakan University, Engineering Faculty, Food Engineering Department, Konya, Turkiye
| | - Yunus Emre Tunçil
- Necmettin Erbakan University, Engineering Faculty, Food Engineering Department, Konya, Turkiye
| | - Mutamed Ayyash
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al Ain, United Arab Emirates
| | - Enes Dertli
- Yildiz Technical University, Chemical and Metallurgical Engineering Faculty, Food Engineering Department, Istanbul, Turkiye.
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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.
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Bischofberger AM, Hall AR. Community Composition of Bacteria Isolated from Swiss Banknotes Varies Depending on Collection Environment. Mol Ecol 2022; 32:2619-2632. [PMID: 35377495 DOI: 10.1111/mec.16456] [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: 12/02/2021] [Revised: 02/24/2022] [Accepted: 03/28/2022] [Indexed: 11/30/2022]
Abstract
Humans interact constantly with surfaces and associated microbial communities in the environment. The factors shaping the composition of these communities are poorly understood: some proposed explanations emphasize the influence of local habitat conditions (niche-based explanations), while others point to geographic structure and the distance among sampled locations (dispersal-based explanations). However, the relative roles of these different drivers for microbial community assembly on human-associated surfaces are not clear. Here, we used a combination of sampling, sequencing (16S rRNA) and culturing to show that the composition of banknote-associated bacterial communities varies depending on the local collection environment. Using banknotes collected from various locations and types of shops across Switzerland, we found taxonomic diversity dominated by families such as Pseudomonadaceae and Staphylococcaceae, but with banknote samples from particular types of shops (especially butcher shops) having distinct community structure. By contrast, we found no evidence of geographic structure: similarity of community composition did not decrease with increasing distance among sampled locations. These results show that microbial communities associated with banknotes, one of the most commonly encountered and exchanged human-associated surfaces, can reflect the local environmental conditions (in this case, the type of shop), and the signal for this type of variation was stronger than that for geographic structure among the locations sampled here.
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Affiliation(s)
| | - Alex R Hall
- Institute of Integrative Biology, ETH Zurich, Switzerland
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Ramos-Moreno L, Ruiz-Pérez F, Rodríguez-Castro E, Ramos J. Debaryomyces hansenii Is a Real Tool to Improve a Diversity of Characteristics in Sausages and Dry-Meat Products. Microorganisms 2021; 9:microorganisms9071512. [PMID: 34361947 PMCID: PMC8303870 DOI: 10.3390/microorganisms9071512] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/14/2021] [Accepted: 07/14/2021] [Indexed: 11/16/2022] Open
Abstract
Debaryomyces hansenii yeast represents a promising target for basic and applied biotechnological research It is known that D. hansenii is abundant in sausages and dry-meat products, but information regarding its contribution to their characteristics is blurry and contradictory. The main goal in this review was to define the biological contribution of D. hansenii to the final features of these products. Depending on multiple factors, D. hansenii may affect diverse physicochemical characteristics of meat products. However, there is general agreement about the significant generation of volatile and aromatic compounds caused by the metabolic activities of this yeast, which consequently provide a tendency for improved consumer acceptance. We also summarize current evidence highlighting that it is not possible to predict what the results would be after the inoculation of a meat product with a selected D. hansenii strain without a pivotal previous study. The use of D. hansenii as a biocontrol agent and to manufacture new meat products by decreasing preservatives are examples of exploring research lines that will complement current knowledge and contribute to prepare new and more ecological products.
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Assessment of the spoilage microbiota in minced free-range chicken meat during storage at 4 C in retail modified atmosphere packages. Food Microbiol 2021; 99:103822. [PMID: 34119107 DOI: 10.1016/j.fm.2021.103822] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/18/2021] [Accepted: 04/23/2021] [Indexed: 11/21/2022]
Abstract
This study assessed the evolution of spoilage microbiota in association with the changes in pH and concentrations of lactic and acetic acids in retail oxygen-free modified atmosphere (30:70 CO2/N2) packages (MAP) of minced free-range chicken meat during storage at 4 °C for 10 days. MAP retarded growth of spoilage lactic acid bacteria (LAB) below 6.5 log cfu/g and fully suppressed growth of pseudomonads, enterobacteria, enterococci, staphylococci and yeasts. Two distinct Latilactobacillus sakei strain biotypes were predominant and Leuconostoc carnosum, Carnobacterium divergens, Latilactobacillus fuchuensis and Weissella koreensis were subdominant at spoilage. The chicken meat pH ranged from 5.8 to 6.1. l-lactate (832 mg/100 g on day-0) decreased slightly on day-7. d-lactate remained constantly below 20 mg/100 g, whereas acetate (0-59 mg/100 g) increased 5-fold on day-7. All MAP samples developed off-odors on day-7 and a strong 'blown-pack' sulfur-type of spoilage on day-10. However, neither the predominant Lb. sakei nor other LAB or gram-negative isolates formed H2S in vitro, except for C. divergens.
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Samelis J, Kakouri A. Growth Inhibitory and Selective Pressure Effects of Sodium Diacetate on the Spoilage Microbiota of Frankfurters Stored at 4 °C and 12 °C in Vacuum. Foods 2021; 10:E74. [PMID: 33401509 PMCID: PMC7824339 DOI: 10.3390/foods10010074] [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: 11/24/2020] [Revised: 12/21/2020] [Accepted: 12/25/2020] [Indexed: 01/01/2023] Open
Abstract
This study evaluated microbial growth in commercial frankfurters formulated with 1.8% sodium lactate (SL) singly or combined with 0.25% sodium diacetate (SDA), vacuum-packaged (VP) and stored at 4 °C and 12 °C. Standard frankfurters without SDA, containing 0.15% SL, served as controls (CN). Lactic acid bacteria (LAB) were the exclusive spoilers in all treatments at both storage temperatures. However, compared to the CN and SL treatments, SL + SDA delayed growth of LAB by an average of 5.1 and 3.1 log units, and 3.0 and 2.0 log units, respectively, after 30 and 60 days at 4 °C. On day 90, the SL + SDA frankfurters were unspoiled whereas the SL and CN frankfurters had spoiled on day 60 and day 30 to 60, respectively. At 12 °C, LAB growth was similar in all treatments after day 15, but strong defects developed in the CN and SL frankfurters only. Differential spoilage patterns were associated with a major reversal of the LAB biota from gas- and slime-producing Leuconostoc mesenteroides and Leuconostoc carnosum in the CN and SL frankfurters to Lactobacillus sakei/curvatus in the SL + SDA frankfurters. Thus, SL + SDA extends the retail shelf life of VP frankfurters by delaying total LAB growth and selecting for lactobacilli with a milder cured meat spoilage potential than leuconostocs, particularly under refrigeration.
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Affiliation(s)
- John Samelis
- Hellenic Agricultural Organization ‘DIMITRA’, Dairy Research Department, 45221 Katsikas, Ioannina, Greece;
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Chen Y, Li Q, Xia C, Yang F, Xu N, Wu Q, Hu Y, Xia L, Wang C, Zhou M. Effect of selenium supplements on the antioxidant activity and nitrite degradation of lactic acid bacteria. World J Microbiol Biotechnol 2019; 35:61. [PMID: 30919142 DOI: 10.1007/s11274-019-2609-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 01/29/2019] [Indexed: 11/24/2022]
Abstract
Selenium (Se) is one of the essential trace elements in the human body, and Se-enriched lactic acid bacteria (LAB) can improve the biological utilization value of inorganic Se. The aim of this study was to isolate Se-enriched LAB and study their effects on antioxidant activity and nitrite degradation. The Se-enriched LAB L.P2, which was nitrite-tolerant and could grow in 30 µg/mL sodium selenite (Na2SeO3) medium, was isolated from the traditional fermented Chinese sauerkraut. L.P2 belonged to Lactobacillus plantarum according to the 16S rDNA analysis. The biomass and lactic acid production of L.P2 reached to a maximum (9.52 log CFU/mL and 16.99 mg/mL) when 2.0 µg/mL Na2SeO3 was supplemented in the medium. Additionally, the nitrite degradation rate reached 85.76% when the initial concentration of Na2SeO3 was 2.0 µg/mL. The Se-enriched LAB enhanced the scavenging capacity of hydroxyl radical and superoxide free radical of L.P2 and improved the lipid peroxidation and ion-chelating abilities. Moreover, the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in Se 4 group (4.0 µg/mL Na2SeO3 was added) reached 48.49 and 50.35 U/mg, respectively. Thus, Se 4 concentration was significantly higher than that of Se 0 group (with no Se added). In particular, SOD and GSH-Px enzymes correlated with nitrite degradation (P < 0.01). Collectively, our results indicate that Se supplementation can enhance the antioxidant capacity of LAB, contribute to its nitrite degradation, and thus may have potential applications in functional foods.
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Affiliation(s)
- Yang Chen
- Research Center of Food Fermentation Engineering and Technology of Hubei, Department of Bioengineering and Food Science, Hubei Cooperative Innovation Center for Industrial Fermentation, Hubei University of Technology, No. 28, Nanli Road, Hongshan District, Wuhan, 430068, Hubei Province, China
| | - Qin Li
- Research Center of Food Fermentation Engineering and Technology of Hubei, Department of Bioengineering and Food Science, Hubei Cooperative Innovation Center for Industrial Fermentation, Hubei University of Technology, No. 28, Nanli Road, Hongshan District, Wuhan, 430068, Hubei Province, China
| | - Chengcheng Xia
- Research Center of Food Fermentation Engineering and Technology of Hubei, Department of Bioengineering and Food Science, Hubei Cooperative Innovation Center for Industrial Fermentation, Hubei University of Technology, No. 28, Nanli Road, Hongshan District, Wuhan, 430068, Hubei Province, China
| | - Fan Yang
- Research Center of Food Fermentation Engineering and Technology of Hubei, Department of Bioengineering and Food Science, Hubei Cooperative Innovation Center for Industrial Fermentation, Hubei University of Technology, No. 28, Nanli Road, Hongshan District, Wuhan, 430068, Hubei Province, China
| | - Ning Xu
- Research Center of Food Fermentation Engineering and Technology of Hubei, Department of Bioengineering and Food Science, Hubei Cooperative Innovation Center for Industrial Fermentation, Hubei University of Technology, No. 28, Nanli Road, Hongshan District, Wuhan, 430068, Hubei Province, China
| | - Qian Wu
- Research Center of Food Fermentation Engineering and Technology of Hubei, Department of Bioengineering and Food Science, Hubei Cooperative Innovation Center for Industrial Fermentation, Hubei University of Technology, No. 28, Nanli Road, Hongshan District, Wuhan, 430068, Hubei Province, China
| | - Yong Hu
- Research Center of Food Fermentation Engineering and Technology of Hubei, Department of Bioengineering and Food Science, Hubei Cooperative Innovation Center for Industrial Fermentation, Hubei University of Technology, No. 28, Nanli Road, Hongshan District, Wuhan, 430068, Hubei Province, China
| | - Lusha Xia
- Department of gastroenterology, Renmin Hospital of Wuhan University, Wuhan, 430068, China
| | - Chao Wang
- Research Center of Food Fermentation Engineering and Technology of Hubei, Department of Bioengineering and Food Science, Hubei Cooperative Innovation Center for Industrial Fermentation, Hubei University of Technology, No. 28, Nanli Road, Hongshan District, Wuhan, 430068, Hubei Province, China.
| | - Mengzhou Zhou
- Research Center of Food Fermentation Engineering and Technology of Hubei, Department of Bioengineering and Food Science, Hubei Cooperative Innovation Center for Industrial Fermentation, Hubei University of Technology, No. 28, Nanli Road, Hongshan District, Wuhan, 430068, Hubei Province, China.
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Bah A, Ferjani R, Fhoula I, Gharbi Y, Najjari A, Boudabous A, Ouzari HI. Microbial community dynamic in tomato fruit during spontaneous fermentation and biotechnological characterization of indigenous lactic acid bacteria. ANN MICROBIOL 2018. [DOI: 10.1007/s13213-018-1385-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Janßen D, Eisenbach L, Ehrmann MA, Vogel RF. Assertiveness of Lactobacillus sakei and Lactobacillus curvatus in a fermented sausage model. Int J Food Microbiol 2018; 285:188-197. [DOI: 10.1016/j.ijfoodmicro.2018.04.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 04/11/2018] [Accepted: 04/16/2018] [Indexed: 11/15/2022]
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Phenotypic Identification and Technological Characterization of Lactic Acid Bacteria Isolated from L’ben, An Algerian Traditional Fermented Cow Milk. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2018. [DOI: 10.22207/jpam.12.2.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Technological properties assessment and two component systems distribution of Streptococcus thermophilus strains isolated from fermented milk. Arch Microbiol 2017; 200:567-580. [PMID: 29236144 DOI: 10.1007/s00203-017-1468-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 11/25/2017] [Accepted: 12/06/2017] [Indexed: 10/18/2022]
Abstract
Streptococcus thermophilus is one of the economically most representatives of lactic acid bacteria, which is widely used as a starter to produce fermented milk products. In this study, 22 S. thermophilus strains were isolated from 26 fermented milk samples. Most isolates showed the ability to ferment a broad range of carbohydrates. Interestingly, eight strains are galactose positive, which is a desirable property in various industrial dairy fermentations. Four different nucleotide sequences were found in the galR-galK intergenic regions. The 16S-23S intergenic spacer region sequences of most isolates were determined as ITS-St-II type, which are related with protease positive and fast acidification. CS18 presented excellent technological performances, and showed potential as a promising starter candidate. To gain a comprehensive view of stress response mechanisms of strains, the distribution of all the two-component systems (TCSs) in strains were investigated. TCS analysis indicated that the nucleotide sequence of TCSs have obvious differences in different strains. And the strains with the special nucleotide sequences of TCS have distinctive traits. Therefore, it was speculated that there is a certain connection between the traits' difference and the TCS difference of strains.
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Abstract
Among other fermentation processes, lactic acid fermentation is a valuable process which enhances the safety, nutritional and sensory properties of food. The use of starters is recommended compared to spontaneous fermentation, from a safety point of view but also to ensure a better control of product functional and sensory properties. Starters are used for dairy products, sourdough, wine, meat, sauerkraut and homemade foods and beverages from dairy or vegetal origin. Among lactic acid bacteria, Lactobacillus, Lactococcus, Leuconostoc, Streptococcus and Pediococcus are the majors genera used as starters whereas Weissella is not. Weissella spp. are frequently isolated from spontaneous fermented foods and participate to the characteristics of the fermented product. They possess a large set of functional and technological properties, which can enhance safety, nutritional and sensory characteristics of food. Particularly, Weissella cibaria and Weissella confusa have been described as high producers of exo-polysaccharides, which exhibit texturizing properties. Numerous bacteriocins have been purified from Weissella hellenica strains and may be used as bio-preservative. Some Weissella strains are able to decarboxylate polymeric phenolic compounds resulting in a better bioavailability. Other Weissella strains showed resistance to low pH and bile salts and were isolated from healthy human feces, suggesting their potential as probiotics. Despite all these features, the use of Weissella spp. as commercial starters remained non-investigated. Potential biogenic amine production, antibiotic resistance pattern or infection hazard partly explains this neglecting. Besides, Weissella spp. are not recognized as GRAS (Generally Recognized As Safe). However, Weissella spp. are potential powerful starters for food fermentation as well as Lactococcus, Leuconostoc or Lactobacillus species.
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Santos E, González-Fernández C, Jaime I, Rovira J. Identificación y caracterización de bacterias acidolácticas aisladas de chorizos tradicionales elaborados en Castilla y León / Identification and characterization of lactic acid bacteria isolated from traditional chorizo made in Castilla-León. FOOD SCI TECHNOL INT 2016. [DOI: 10.1177/108201329700300103] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A total of 516 strains of lactic acid bacteria isolated from chorizo made in Castilla-León (Spain) were characterized. Strains were isolated at three different stages: minced meat, half ripened chorizo and ripened chorizo. According to the Schillinger and Lücke classification, 355 strains (68.8%) were Lactobacillus sake, 85 strains (16.5%) were Lactobacillus curvatus, 32 strains (6.2%) belonged to the genus Pediococcus, and 44 strains which were not included in the previous species were grouped as Lactobacillus sp. Strains of L. sake and L. curvatus could be separated into four groups each, on the basis of fermentation of maltose and lactose. Group S1 (maltose-, lactose-négative L. sake) predominated (39.5%). Many strains of this group fermented the following carbohydrates: glucose, ribose, galactose, sucrose, melibiose and trehalose.
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Affiliation(s)
- E.M. Santos
- Departamento de Biotecnología y Ciencia de los Alimentos. Facultad de Ciencia y Tecnología de los Alimentos. Universidad de Burgos. Plaza Misael Bañuelos s/n. 09001 Burgos. España
| | - C. González-Fernández
- Departamento de Biotecnología y Ciencia de los Alimentos. Facultad de Ciencia y Tecnología de los Alimentos. Universidad de Burgos. Plaza Misael Bañuelos s/n. 09001 Burgos. España
| | - I. Jaime
- Departamento de Biotecnología y Ciencia de los Alimentos. Facultad de Ciencia y Tecnología de los Alimentos. Universidad de Burgos. Plaza Misael Bañuelos s/n. 09001 Burgos. España
| | - J. Rovira
- Departamento de Biotecnología y Ciencia de los Alimentos. Facultad de Ciencia y Tecnología de los Alimentos. Universidad de Burgos. Plaza Misael Bañuelos s/n. 09001 Burgos. España
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González-Fernández C, Santos E, Jaime I, Rovira J. Utilización de cultivos iniciadores en la elaboración de chorizo y su influencia en las propiedades sensoriales / Use of starter cultures in dry-fermented sausage (chorizo) and their influence on the sensory properties. FOOD SCI TECHNOL INT 2016. [DOI: 10.1177/108201329700300104] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The influence of different starter cultures on the sensory properties of chorizo, especially on texture, was studied. This work focused on the differences observed between the use of the commercial lactic acid bacteria Lactobacillus sake (Lc) and Pediococcus sp (Pc), as well as on the differences between these commercial strains and another Lactobacillus sake (A216) isolated from traditional chorizo. Three batches of chorizo were processed, each batch made up of four different types that contained or lacked one of the three starter cultures. Concerning capacity of acidification, the results indicated that there were no differences between the use of Lactobacillics sake or Pediococcus sp when 0.1% glucose is used. Furthermore, there were no differences in the sensory properties of the final product. Sausage processed with noncommercial Lactobacillus sake (A216) had a more intense flavour and was preferred by consumers because of its texture and overall characteristics. The use of starter culture had a favourable influence on sausage processing, reducing its manu facture time and improving some sensory properties of the final product.
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Affiliation(s)
- C. González-Fernández
- Departamento de Biotecnología y Ciencia de los Alimentos. Universidad de Burgos. Plaza Misael Bañuelos s/n. 09001 Burgos. España
| | - E.M. Santos
- Departamento de Biotecnología y Ciencia de los Alimentos. Universidad de Burgos. Plaza Misael Bañuelos s/n. 09001 Burgos. España
| | - I. Jaime
- Departamento de Biotecnología y Ciencia de los Alimentos. Universidad de Burgos. Plaza Misael Bañuelos s/n. 09001 Burgos. España
| | - J. Rovira
- Departamento de Biotecnología y Ciencia de los Alimentos. Universidad de Burgos. Plaza Misael Bañuelos s/n. 09001 Burgos. España
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Adequacy of Petrifilm™ Aerobic Count plates supplemented with de Man, Rogosa & Sharpe broth and chlorophenol red for enumeration of lactic acid bacteria in salami. Meat Sci 2015; 110:253-61. [PMID: 26291606 DOI: 10.1016/j.meatsci.2015.07.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 07/15/2015] [Accepted: 07/17/2015] [Indexed: 11/21/2022]
Abstract
The present study aimed to assess the performance of alternative protocols to enumerate lactic acid bacteria (LAB) in salami. Fourteen cultures and two mixed starter cultures were plated using six protocols: 1) Petrifilm™ Aerobic Count (AC) with MRS broth and chlorophenol red (CR), incubated under aerobiosis or 2) under anaerobiosis, 3) MRS agar with CR, 4) MRS agar with bromocresol purple, 5) MRS agar at pH5.7, and 6) All Purpose Tween agar. Samples of salami were obtained and the LAB microbiota was enumerated by plating according protocols 1, 2, 3 and 5. Regression analysis showed a significant correlation between the tested protocols, based on culture counts (p<0.05). Similar results were observed for salami, and no significant differences of mean LAB counts between selected protocols (ANOVA, p>0.05). Colonies were confirmed as LAB, indicating proper selectivity of the protocols. The results showed the adequacy of Petrifilm™ AC supplemented with CR for the enumeration of LAB in salami.
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Gómez-Rojo EM, Romero-Santacreu L, Jaime I, Rovira J. A novel real-time PCR assay for the specific identification and quantification of Weissella viridescens in blood sausages. Int J Food Microbiol 2015; 215:16-24. [PMID: 26318409 DOI: 10.1016/j.ijfoodmicro.2015.08.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Revised: 08/04/2015] [Accepted: 08/07/2015] [Indexed: 12/23/2022]
Abstract
Weissella viridescens has been identified as one of the lactic acid bacteria (LAB) responsible for the spoilage of "morcilla de Burgos". In order to identify and quantify this bacterium in "morcilla de Burgos", a new specific PCR procedure has been developed. The primers and Taqman probe were designed on the basis of a sequence from the gene recN. To confirm the specificity of the primers, 77 strains from the genera Carnobacterium, Enterococcus, Lactobacillus, Leuconostoc, Pediococcus, Streptococcus, Vagococcus and Weissella were tested by conventional PCR. The specificity of the primers and the correct functioning of the probe was confirmed by performing real-time PCR (qPCR) with 21 W. viridescens strains and 27 strains from other LAB genera. The levels of detection and quantification for the qPCR procedure proposed herein were determined for a pure culture of W. viridescens CECT 283(T) and for "morcilla de Burgos" artificially inoculated with this species. The primers were specific for W. viridescens, with only one product of 91 bp being observed for this species. Similarly, the qPCR reactions were found to be specific, amplifying at a mean CT of 15.0±0.4 only for W. viridescens strains. The limit of detection (LOD) and quantification (LOQ) for this procedure was established in 0.082 pg for genomic DNA from W. viridescens. With regard to the artificially inoculated "morcilla", the limit of quantification was established in 80 CFU/reaction and the limit of detection in 8 CFU/reaction. Consequently, the qPCR developed herein can be considered to be a good, fast, simple and accurate tool for the specific detection and quantification of W. viridescens in meat samples.
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Affiliation(s)
- Erica M Gómez-Rojo
- Department of Biotechnology and Food Science, University of Burgos, Pza. Misael Bañuelos s/n, 09001, Burgos, Spain.
| | - L Romero-Santacreu
- Department of Advanced Materials, Nuclear Technology and Applied Nano/Biotechnology, University of Burgos, Parque Científico, Edificio I+D+I, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain.
| | - I Jaime
- Department of Biotechnology and Food Science, University of Burgos, Pza. Misael Bañuelos s/n, 09001, Burgos, Spain.
| | - J Rovira
- Department of Biotechnology and Food Science, University of Burgos, Pza. Misael Bañuelos s/n, 09001, Burgos, Spain.
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Fusco V, Quero GM, Cho GS, Kabisch J, Meske D, Neve H, Bockelmann W, Franz CMAP. The genus Weissella: taxonomy, ecology and biotechnological potential. Front Microbiol 2015; 6:155. [PMID: 25852652 PMCID: PMC4362408 DOI: 10.3389/fmicb.2015.00155] [Citation(s) in RCA: 233] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 02/10/2015] [Indexed: 01/20/2023] Open
Abstract
Bacteria assigned to the genus Weissella are Gram-positive, catalase-negative, non-endospore forming cells with coccoid or rod-shaped morphology (Collins et al., 1993; Björkroth et al., 2009, 2014) and belong to the group of bacteria generally known as lactic acid bacteria. Phylogenetically, the Weissella belong to the Firmicutes, class Bacilli, order Lactobacillales and family Leuconostocaceae (Collins et al., 1993). They are obligately heterofermentative, producing CO2 from carbohydrate metabolism with either d(-)-, or a mixture of d(-)- and l(+)- lactic acid and acetic acid as major end products from sugar metabolism. To date, there are 19 validly described Weissella species known. Weissella spp. have been isolated from and occur in a wide range of habitats, e.g., on the skin and in the milk and feces of animals, from saliva, breast milk, feces and vagina of humans, from plants and vegetables, as well as from a variety of fermented foods such as European sourdoughs and Asian and African traditional fermented foods. Thus, apart from a perceived technical role of certain Weissella species involved in such traditional fermentations, specific Weissella strains are also receiving attention as potential probiotics, and strain development of particularly W. cibaria strains is receiving attention because of their high probiotic potential for controlling periodontal disease. Moreover, W. confusa and W. cibaria strains are known to produce copius amounts of novel, non-digestible oligosaccharides and extracellular polysaccharides, mainly dextran. These polymers are receiving increased attention for their potential application as prebiotics and for a wide range of industrial applications, predominantly for bakeries and for the production of cereal-based fermented functional beverages. On the detrimental side, strains of certain Weissella species, e.g., of W. viridescens, W. cibaria and W. confusa, are known as opportunistic pathogens involved in human infections while strains of W. ceti have been recently recongnized as etiological agent of "weissellosis," which is a disease affecting farmed rainbow trouts. Bacteria belonging to this species thus are important both from a technological, as well as from a medical point of view, and both aspects should be taken into account in any envisaged biotechnological applications.
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Affiliation(s)
- Vincenzina Fusco
- National Research Council of Italy, Institute of Sciences of Food ProductionBari, Italy
| | - Grazia M. Quero
- National Research Council of Italy, Institute of Sciences of Food ProductionBari, Italy
| | - Gyu-Sung Cho
- Department of Microbiology and Biotechnology, Max Rubner-InstitutKiel, Germany
| | - Jan Kabisch
- Department of Microbiology and Biotechnology, Max Rubner-InstitutKiel, Germany
| | - Diana Meske
- Department of Microbiology and Biotechnology, Max Rubner-InstitutKiel, Germany
| | - Horst Neve
- Department of Microbiology and Biotechnology, Max Rubner-InstitutKiel, Germany
| | - Wilhelm Bockelmann
- Department of Microbiology and Biotechnology, Max Rubner-InstitutKiel, Germany
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Ng’ong’ola-Manani TA, Wicklund T, Mwangwela AM, Østlie HM. Identification and Characterization of Lactic Acid Bacteria Involved in Natural and Lactic Acid Bacterial Fermentations of Pastes of Soybeans and Soybean-Maize Blends Using Culture-Dependent Techniques and Denaturing Gradient Gel Electrophoresis. FOOD BIOTECHNOL 2015. [DOI: 10.1080/08905436.2014.996894] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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20
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Bacterial populations and the volatilome associated to meat spoilage. Food Microbiol 2015; 45:83-102. [DOI: 10.1016/j.fm.2014.02.002] [Citation(s) in RCA: 340] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 01/27/2014] [Accepted: 02/08/2014] [Indexed: 11/18/2022]
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21
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Wu RN, Wu ZX, Zhao CY, LV CM, Wu JR, Meng XJ. Identification of lactic acid bacteria in suancai, a traditional Northeastern Chinese fermented food, and salt response of Lactobacillus paracasei LN-1. ANN MICROBIOL 2013. [DOI: 10.1007/s13213-013-0776-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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22
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Population genetics of Lactobacillus sakei reveals three lineages with distinct evolutionary histories. PLoS One 2013; 8:e73253. [PMID: 24069179 PMCID: PMC3777942 DOI: 10.1371/journal.pone.0073253] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Accepted: 07/19/2013] [Indexed: 11/20/2022] Open
Abstract
Lactobacillus sakei plays a major role in meat fermentation and in the preservation of fresh meat. The large diversity of L. sakei strains represents a valuable and exploitable asset in the development of a variety of industrial applications; however, an efficient method to identify and classify these strains has yet to be developed. In this study, we used multilocus sequence typing (MLST) to analyze the polymorphism and allelic distribution of eight loci within an L. sakei population of 232 strains collected worldwide. Within this population, we identified 116 unique sequence types with an average pairwise nucleotide diversity per site (π) of 0.13%. Results from Structure, goeBurst, and ClonalFrame software analyses demonstrated that the L. sakei population analyzed here is derived from three ancestral lineages, each of which shows evidence of a unique evolutionary history influenced by independent selection scenarios. However, the signature of selective events in the contemporary population of isolates was somewhat masked by the pervasive phenomenon of homologous recombination. Our results demonstrate that lineage 1 is a completely panmictic subpopulation in which alleles have been continually redistributed through the process of intra-lineage recombination. In contrast, lineage 2 was characterized by a high degree of clonality. Lineage 3, the earliest-diverging branch in the genealogy, showed evidence of both clonality and recombination. These evolutionary histories strongly indicate that the three lineages may correspond to distinct ecotypes, likely linked or specialized to different environmental reservoirs. The MLST scheme developed in this study represents an easy and straightforward tool that can be used to further analyze the population dynamics of L. sakei strains in food products.
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Overexpression, Purification, and Biochemical Characterization of the Esterase Est0796 from Lactobacillus plantarum WCFS1. Mol Biotechnol 2012; 54:651-60. [DOI: 10.1007/s12033-012-9607-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Characterization of the microbial flora from a traditional Greek fermented sausage. Meat Sci 2012; 69:307-17. [PMID: 22062823 DOI: 10.1016/j.meatsci.2004.07.012] [Citation(s) in RCA: 125] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2004] [Revised: 07/23/2004] [Accepted: 07/30/2004] [Indexed: 11/23/2022]
Abstract
The microbial flora of naturally fermented sausages was studied. Lactic acid bacteria were the dominant species at the end of fermentation in all 3 batches (ca. 10(8) cfu g(-1)). Enterobacteria, Pseudomonas, yeasts and aerobic spore-formers decreased during fermentation and the ripening process and were below the detection limit in the end product. Enterococci exceeded 10(4)-10(5) cfu g(-1) during fermentation and remained constant at this level during ripening. Gram-positive, catalase-positive cocci exceeded 10(5) cfu g(-1), except for batch 1, during the first days of fermentation and then decreased until the end of ripening (10(2)-10(4) cfu g(-1)). No pathogenic staphylococci, sulfite reducing clostridia or Salmonella spp. were detected. Listeria spp. occurred in the first days of fermentation but were eliminated by the end of whole process in all batches. Identification showed that the majority of lactobacilli isolated from MRS agar strains were assigned to the species of Lactobacillus plantarum and Lb. plantarum/pentosus. All the isolated strains from the mannitol salt agar belonged to the genus of Staphylococcus. The predominant species were Staphylococcus saprophyticus, Staphylococcus xylosus and Staphylococcus simulans. The tests used to characterize the lactic acid bacteria and staphylococci as well as their distribution on the three batches were also discussed.
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25
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The effect of nitrite and starter culture on microbiological quality of "chorizo"-a Spanish dry cured sausage. Meat Sci 2012; 60:295-8. [PMID: 22063401 DOI: 10.1016/s0309-1740(01)00137-1] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2001] [Revised: 05/25/2001] [Accepted: 05/31/2001] [Indexed: 11/20/2022]
Abstract
The effect of nitrite and starter culture on the survival of Enterobacteriaceae, Micrococcaceae, Lactic acid bacteria and other microorganisms was evaluated during ripening of "chorizo", a Spanish dry sausage. Sodium nitrite 50 and 150 ppm and Lactobacillus sake CL35 added to the "chorizo" have a significant inhibitory effect on Enterobacteriaceae counts but did not on Micrococcaceae. The use of Lact. sake could be an adequate safety factor in this product.
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26
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Casquete R, Benito MJ, Martín A, Ruiz-Moyano S, Aranda E, Córdoba MG. Microbiological quality of salchichón and chorizo, traditional Iberian dry-fermented sausages from two different industries, inoculated with autochthonous starter cultures. Food Control 2012. [DOI: 10.1016/j.foodcont.2011.09.026] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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27
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Isolation of halophilic lactic acid bacteria from traditional Chinese fermented soybean paste and assessment of the isolates for industrial potential. Eur Food Res Technol 2012. [DOI: 10.1007/s00217-012-1689-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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28
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Rouhi M, Sohrabvandi S, Mortazavian AM. Probiotic Fermented Sausage: Viability of Probiotic Microorganisms and Sensory Characteristics. Crit Rev Food Sci Nutr 2011; 53:331-48. [DOI: 10.1080/10408398.2010.531407] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- M. Rouhi
- a Department of Food Science, Engineering and Technology, Faculty of Agricultural Engineering and Technology , University of Tehran , Karaj , Iran
| | - S. Sohrabvandi
- b Department of Food Science and Technology, Faculty of Nutrition Sciences, Food Science and Technology/National Nutrition and Food Technology Research Institute , Shahid Beheshti University of Medical Sciences , P.O. Box 19395-4741, Tehran , Iran
| | - A. M. Mortazavian
- b Department of Food Science and Technology, Faculty of Nutrition Sciences, Food Science and Technology/National Nutrition and Food Technology Research Institute , Shahid Beheshti University of Medical Sciences , P.O. Box 19395-4741, Tehran , Iran
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30
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Sekwati-Monang B, Gänzle MG. Microbiological and chemical characterisation of ting, a sorghum-based sourdough product from Botswana. Int J Food Microbiol 2011; 150:115-21. [PMID: 21862164 DOI: 10.1016/j.ijfoodmicro.2011.07.021] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 07/11/2011] [Accepted: 07/20/2011] [Indexed: 11/17/2022]
Abstract
Ting is a fermented sorghum product of Botswana which is used to prepare porridges of different consistencies. This study aimed to characterise ting with respect to fermentation microbiota and metabolite composition, and to develop starter cultures for ting fermentation. The pH values of 10 ting samples from Botswana ranged between 3.5 and 4.0 and cell counts ranged between 1.2×10(8) and 1.2×10(10)cfu/g lactic acid bacteria. Yeast cell counts were below 10(5)cfu/g in all samples and Enterobacteriaceae were less than 10 cfu/g. The microbiota of samples consisted of 2-4 dominant strains and strains were identified based on the sequence of their 16S rRNA genes as Lactobacillus reuteri, Lactobacillus fermentum, Lactobacillus harbinensis, Lactobacillus plantarum, Lactobacillus parabuchneri, Lactobacillus casei and Lactobacillus coryniformis. Binary strain combinations were employed as starter cultures to produce ting. Major fermentation products were lactate, acetate and ethanol, additionally, 1,2 propanediol and 1,3 propanediol were produced by some strains. All strains were capable of producing ting, which was accompanied by a decrease in pH from 6.3 to 4 within 8h. Traditionally processed ting requires 2 to 3 days to attain a pH below 4; the starter cultures thus reduced the fermentation time to 8h.
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Affiliation(s)
- Bonno Sekwati-Monang
- Department of Agriculture, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
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31
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Voidarou C, Tzora A, Malamou O, Akrida-Demertzi K, Demertzis PG, Vassos D, Rozos G, Alexopoulos A, Plessas S, Stavropoulou E, Skoufou M, Bezirtzoglou E, Riganakos G. Chemical and microbiological characterization of artisan inoculants used for the fermentation of traditional dairy products in Epirus area (Greece). Anaerobe 2011; 17:354-7. [PMID: 21839182 DOI: 10.1016/j.anaerobe.2011.07.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Revised: 07/06/2011] [Accepted: 07/09/2011] [Indexed: 11/28/2022]
Abstract
The artisan production of a variety of dairy products is a historical tradition since antiquity, which is still practiced nowadays, in the area of Epirus, (northwestern Greece). The common denominator of these products, regardless of the final form of the end product, is the fermentation of raw milk by the use of dried artisan inoculants made of the dehydrated rumen of small ruminants, mainly lambs. The aim of this research project is to study the microbiological parameters as well as certain technological parameters (chymosin activity and lipolytic activity) of these inoculants. The results revealed a wide biodiversity of microorganisms such as Lactobacilli, Lactococci, Leuconostoc, Pediococci, Streptococci, Bifidobacteria, Enterococci, Clostridia and coliforms. Chymosin activity and lipolytic activity were found to be higher in artisan inoculants than in the commercial ones.
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Affiliation(s)
- C Voidarou
- Technological Institute of Epirus, Laboratory of Animal Health and Infectious Diseases, Department of Animal Production, Arta, Greece.
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Beal P, Faion AM, Cichoski AJ, Cansian RL, Valduga AT, de Oliveira D, Valduga E. Oxidative stability of fermented Italian-type sausages using mate leaves (Ilex paraguariensis St. Hil) extract as natural antioxidant. Int J Food Sci Nutr 2011; 62:703-10. [PMID: 21591987 DOI: 10.3109/09637486.2011.579089] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The objective of this work is to evaluate the effects of the addition of dried extract from mate leaves on the oxidative stability (lipid and protein), microbiological characteristics (lactic and Micrococcaceae bacteria) and sensory attributes of formulations of Italian-type sausages. The different Italian-type sausages formulations tested in this work were in agreement with the legislation in terms of chemical and microbiological parameters. During storage, the formulation with 0.4 wt% of mate leaves extract presented lower thiobarbituric acid reactive substances and carbonyl values compared with the control, proving the antioxidant action of the extract. The sensory characteristics of flavour, texture and global acceptation were not affected by the addition of mate extract compared with the formulation with artificial antioxidant.
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Affiliation(s)
- Patrícia Beal
- Departamento de Engenharia de Alimentos, URI-Campus de Erechim, Av. Sete de Setembro 1621, Erechim, RS, 99700-000, Brazil
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33
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Françoise L. Occurrence and role of lactic acid bacteria in seafood products. Food Microbiol 2010; 27:698-709. [DOI: 10.1016/j.fm.2010.05.016] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2009] [Revised: 05/12/2010] [Accepted: 05/17/2010] [Indexed: 10/19/2022]
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34
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Todorov SD, Franco BDGDM. Lactobacillus Plantarum: Characterization of the Species and Application in Food Production. FOOD REVIEWS INTERNATIONAL 2010. [DOI: 10.1080/87559129.2010.484113] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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35
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Lorenzo JM, García Fontán MC, Cachaldora A, Franco I, Carballo J. Study of the lactic acid bacteria throughout the manufacture of dry-cured lacón (a Spanish traditional meat product). Effect of some additives. Food Microbiol 2010; 27:229-35. [PMID: 20141940 DOI: 10.1016/j.fm.2009.10.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Revised: 09/27/2009] [Accepted: 10/05/2009] [Indexed: 11/17/2022]
Affiliation(s)
- José M Lorenzo
- Area de Tecnología de los Alimentos, Facultad de Ciencias de Ourense, Universidad de Vigo, 32004 Ourense, Spain
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36
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Kaban G, Kaya M. Identification of lactic acid bacteria and Gram-positive catalase-positive cocci isolated from naturally fermented sausage (sucuk). J Food Sci 2009; 73:M385-8. [PMID: 19019118 DOI: 10.1111/j.1750-3841.2008.00906.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The aim of the study was to identify lactic acid bacteria and Gram-positive catalase-positive cocci isolated from Turkish dry fermented sausage (sucuk) produced by 7 different manufacturers without using starter culture. A total of 129 isolates of lactic acid bacteria were identified phenotypically. Lactobacillus plantarum was the dominant species (45.7%) followed by L. curvatus (10.9%) and L. fermentum (9.3%). Pediococcus isolates were identified as P. pentosaceus and P. acidilactici. All the isolates of gram-positive and catalase-positive cocci (123 isolates) were classified as Staphylococcus except for 1 isolate assigned to Kocuria rosea. The species isolated most often were S. xylosus (41.5%) and S. saprophyticus (28.5%). Four isolates were identified as S. equorum (3.3%), 1 isolate was assigned to S. carnosus (0.8%).
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Affiliation(s)
- G Kaban
- Dept. of Food Engineering, Faculty of Agriculture, Atatürk Univ., Erzurum, Turkey 25240.
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37
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Bonomo M, Ricciardi A, Zotta T, Parente E, Salzano G. Molecular and technological characterization of lactic acid bacteria from traditional fermented sausages of Basilicata region (Southern Italy). Meat Sci 2008; 80:1238-48. [DOI: 10.1016/j.meatsci.2008.05.032] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2007] [Revised: 05/07/2008] [Accepted: 05/27/2008] [Indexed: 11/25/2022]
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38
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Screening of lactic acid bacteria and bifidobacteria for potential probiotic use in Iberian dry fermented sausages. Meat Sci 2008; 80:715-21. [DOI: 10.1016/j.meatsci.2008.03.011] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2008] [Revised: 03/07/2008] [Accepted: 03/10/2008] [Indexed: 11/23/2022]
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39
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Benito MJ, Serradilla MJ, Ruiz-Moyano S, Martín A, Pérez-Nevado F, Córdoba MG. Rapid differentiation of lactic acid bacteria from autochthonous fermentation of Iberian dry-fermented sausages. Meat Sci 2008; 80:656-61. [DOI: 10.1016/j.meatsci.2008.03.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2007] [Revised: 02/20/2008] [Accepted: 03/08/2008] [Indexed: 10/22/2022]
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40
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El Malti J, Amarouch H. Microbial and Physicochemical Characterization of the Horse Meat in Fermented Sausage. FOOD BIOTECHNOL 2008. [DOI: 10.1080/08905430802262830] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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41
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Assessment of environmental enterococci: bacterial antagonism, pathogenic capacity and antibiotic resistance. Antonie van Leeuwenhoek 2008; 94:555-62. [PMID: 18683076 DOI: 10.1007/s10482-008-9272-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2008] [Accepted: 07/22/2008] [Indexed: 10/21/2022]
Abstract
The properties of 166 environmental strains belonging to the seven enterococcal species were studied. Enterococci originated mainly from surface- and waste-waters. They were screened for the presence of enterocins, virulence factors, and antibiotic resistance. The presence of different enterocin genes (entA, entB, entP, ent31, entL50AB) was frequently observed in our enterococcal isolates, 109 strains contained at least one enterocin gene. The distribution of enterocin genes varied according to the species, the genes were present mainly in E. hirae and E. faecium. By enterocin spot assay, 10 isolates inhibited the growth of Listeria strains. To evaluate the pathogenic ability of isolates, the distribution of selected virulence genes (cylA, gelE and esp) was investigated, eleven strains were positive in some of these genes, five of them belonged to E. faecalis. Regarding the antibiotic resistance of isolates, only two strains were multiresistant and two strains (E. hirae and E. casseliflavus) were resistant to vancomycin.
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42
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Georgieva RN, Iliev IN, Chipeva VA, Dimitonova SP, Samelis J, Danova ST. Identification andin vitrocharacterisation ofLactobacillus plantarumstrains from artisanal Bulgarian white brined cheeses. J Basic Microbiol 2008; 48:234-44. [DOI: 10.1002/jobm.200700355] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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EL MALTI JAZILA, AMAROUCH HAMID. PROTECTIVE CULTURES USED FOR THE BIOPRESERVATION OF HORSE MEAT FERMENTED SAUSAGE: MICROBIAL AND PHYSICOCHEMICAL CHARACTERIZATION. J Food Saf 2008. [DOI: 10.1111/j.1745-4565.2007.00102.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sustacková A, Nápravníková E, Schlegelová J. Antimicrobial resistance ofEnterococcus spp. isolates from raw beef and meat products. Folia Microbiol (Praha) 2008; 49:411-7. [PMID: 15530006 DOI: 10.1007/bf02931602] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
E. faecalis (67%) and E. faecium (13.7%) were most frequently isolated among enterococci that contaminate cooled and frozen processed meat, follow-up heat-treated meat products and unheated fermented dry salami. Most isolates of both species were resistant to cephalothin (95 and 83 %) and clindamycin (77 and 67%, respectively). Furthermore, E. faecalis and E. faecium isolates were resistant to erythromycin (44 and 72%), tetracycline (34.5 and 17.4%), and streptomycin (13.3 and 4.3%, respectively). Only a few of the isolates were resistant to ampicillin, ampicillin-sulbactam, chloramphenicol, and vancomycin while all isolates were susceptible to gentamicin, penicillin, and teicoplanin. During the production of heat-treated meat products, numbers of resistant isolates increased in spite of the decreasing enterococcal contamination of the samples. An opposite situation was found in the production of fermented dry salami.
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Affiliation(s)
- A Sustacková
- Veterinary Research Institute, 621 32 Brno, Czechia.
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Isolation and identification of dominant microorganisms involved in naturally fermented goat milk in Haixi region of Qinghai, China. ANN MICROBIOL 2008. [DOI: 10.1007/bf03175319] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Application of electron-beam irradiation combined with antioxidants for fermented sausage and its quality characteristic. Radiat Phys Chem Oxf Engl 1993 2008. [DOI: 10.1016/j.radphyschem.2008.02.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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MALTI JAZILAEL, AMAROUCH HAMID. MICROBIOLOGICAL AND PHYSICOCHEMICAL CHARACTERIZATION OF NATURAL FERMENTED CAMEL MEAT SAUSAGE. J FOOD PROCESS PRES 2008. [DOI: 10.1111/j.1745-4549.2007.00172.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Samelis J, Tsakalidou E, Metaxopoulos J, Kalantzopoulos G. Differentiation ofLactobacillus sakeandLact. curvatusisolated from naturally fermented Greek dry salami by SDS-PAGE of whole-cell proteins. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1365-2672.1995.tb02836.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sallam KI. Effect of marinating process on the microbiological quality of Pacific saury (Cololabis saira) during vacuum-packaged storage at 4 °C. Int J Food Sci Technol 2008. [DOI: 10.1111/j.1365-2621.2006.01421.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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