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Garmasheva I, Tomila T, Kharkhota M, Oleschenko L. Exopolysaccharides of lactic acid bacteria as protective agents against bacterial and viral plant pathogens. Int J Biol Macromol 2024; 276:133851. [PMID: 39004247 DOI: 10.1016/j.ijbiomac.2024.133851] [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: 01/05/2024] [Revised: 07/03/2024] [Accepted: 07/11/2024] [Indexed: 07/16/2024]
Abstract
In this study, 25 exopolysaccharides produced by lactic acid bacteria (LAB) were screened for their effect on plant pathogens. The molecular masses of EPS were found to be 3,8-5,0 × 104 Da. The GC-MS analysis revealed that EPSs were majorly composed of glucose (85.85-97.98 %). The FT-IR spectra of EPSs were in agreement with the typical absorption peaks of polysaccharides. EPSs showed a hydroxyl radical scavenging ability. The scavenging rate of EPS ranged from 20 to 50 % at a concentration of 5.0 mg/mL. Significant growth delay of phytopathogenic bacteria was observed after 3-6 h of cultivation. Optical density values of indicator cultures growing in the medium with EPS (1 mg/mL) were lower compared to the control by 24-100 % for Pseudomonas fluorescens, 9-46 % for P. syringae, 47-79 % for Pectobacterium carotovorum, 14-90 % for Clavibacter michiganensis, 9-100 % for Xantomonas campestris, and 45-100 % for X. vesicatorium. EPS retained their inhibitory effect on the growth of X. campestris, X. vesicatorium and C. michiganensis strains after 24-48 h of cultivation, but stimulating effect on the growth of some strains also was observed. LAB EPS showed antibiofilm activity against P. carotovorum, P. syringae, and P. fluorescent, decreasing their biofilm formation by 16-50 %, 14-39 %, and 29-59 %, respectively. Also, stimulation of biofilm formation by X. campestris (by 8-29 %), X. vesicatorium (by 3-32 %) and C. michiganensis (by 31-41 %) strains was observed. EPSs showed antiviral activity against tobacco mosaic virus (TMV). At a concentration of 100 μg/mL, they decreased the infective ability of TMV by 61-92 %. This is the first study demonstrating that LAB EPS exhibited in vitro antibacterial and antibiofilm activity against phytopathogenic bacteria and anti-viral activity against TMV. Thus, LAB EPSs could have great potential for plant protection strategies.
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Affiliation(s)
- Inna Garmasheva
- Department of Physiology of Industrial Microorganisms, Zabolotny Institute of Microbiology and Virology, National Academy of Sciences of Ukraine, Acad. Zabolotny str., 154, Kyiv 03143, Ukraine.
| | - Tamara Tomila
- Department of Physics, Chemistry and Technology of Nanotextured Ceramics and Nanocomposite Materials, Frantsevich Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Omeliana Pritsaka str., 3, Kyiv 03142, Ukraine
| | - Maxim Kharkhota
- Laboratory of biological polymer compounds, Zabolotny Institute of Microbiology and Virology, National Academy of Sciences of Ukraine, Acad. Zabolotny str., 154, Kyiv 03143, Ukraine
| | - Ljubov Oleschenko
- Department of Physiology of Industrial Microorganisms, Zabolotny Institute of Microbiology and Virology, National Academy of Sciences of Ukraine, Acad. Zabolotny str., 154, Kyiv 03143, Ukraine
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Čuljak N, Bellich B, Pedroni A, Butorac K, Pavunc AL, Novak J, Banić M, Šušković J, Cescutti P, Kos B. Limosilactobacillus fermentum strains MC1 and D12: Functional properties and exopolysaccharides characterization. Int J Biol Macromol 2024; 273:133215. [PMID: 38897515 DOI: 10.1016/j.ijbiomac.2024.133215] [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: 03/29/2024] [Revised: 05/17/2024] [Accepted: 06/15/2024] [Indexed: 06/21/2024]
Abstract
Lactic acid bacteria (LAB) produce a broad spectrum of exopolysaccharides (EPSs), commonly used as texturizers in food products. Due to their potential contribution to LAB probiotic properties, like adhesion to human epithelial cells and competitive exclusion of pathogens from human intestinal epithelial cells, this study was focussed on the structural and functional characterization of the EPSs produced by two Limosilactobacillus fermentum strains - MC1, originating from mother's milk, and D12, autochthonous from Croatian smoked fresh cheese. Whole-genome sequencing and functional annotation of both L. fermentum strains by RAST server revealed the genes involved in EPS production and transport, with some differences in functionally related genes. EPSs were extracted from the cell surface of both bacterial strains and purified by size-exclusion chromatography. Structural characterization of the EPSs, achieved by chemical analyses and 1D and 2D NMR spectroscopy, showed that both strains produce an identical mixture of three different EPSs containing galactofuranose and glucopyranose residues. However, a comparison of the functional properties showed that the MC1 strain adhered better to the Caco-2 cell line and exhibited stronger antimicrobial effect against Salmonella enterica serovar Typhimurium FP1 than the D12 strain, which may be attributed to the potential bacteriocin activity of the MC1 strain.
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Affiliation(s)
- Nina Čuljak
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Cultures Technology, Department of Biochemical Engineering, University of Zagreb Faculty of Food Technology and Biotechnology, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Barbara Bellich
- Department of Advanced Translational Diagnostics, Institute for Maternal and Child Health, IRCCS "Burlo Garofolo", Via dell'Istria 65, 34137 Trieste, Italy
| | - Alice Pedroni
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 1, Bdg. C11, 34127 Trieste, Italy
| | - Katarina Butorac
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Cultures Technology, Department of Biochemical Engineering, University of Zagreb Faculty of Food Technology and Biotechnology, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Andreja Leboš Pavunc
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Cultures Technology, Department of Biochemical Engineering, University of Zagreb Faculty of Food Technology and Biotechnology, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Jasna Novak
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Cultures Technology, Department of Biochemical Engineering, University of Zagreb Faculty of Food Technology and Biotechnology, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Martina Banić
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Cultures Technology, Department of Biochemical Engineering, University of Zagreb Faculty of Food Technology and Biotechnology, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Jagoda Šušković
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Cultures Technology, Department of Biochemical Engineering, University of Zagreb Faculty of Food Technology and Biotechnology, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Paola Cescutti
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 1, Bdg. C11, 34127 Trieste, Italy.
| | - Blaženka Kos
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Cultures Technology, Department of Biochemical Engineering, University of Zagreb Faculty of Food Technology and Biotechnology, Pierottijeva 6, 10000 Zagreb, Croatia
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Dong Y, Ronholm J, Fliss I, Karboune S. Screening of Lactic Acid Bacteria Strains for Potential Sourdough and Bread Applications: Enzyme Expression and Exopolysaccharide Production. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10270-y. [PMID: 38733464 DOI: 10.1007/s12602-024-10270-y] [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] [Accepted: 04/20/2024] [Indexed: 05/13/2024]
Abstract
Twenty-eight strains of lactic acid bacteria (LAB) were characterized for the ability to express enzymes of interest (including protease, xylanase, α-amylase, laccase, and glucose oxidase) as well as the ability to produce exopolysaccharide (EPS). The screening of enzyme capability for all LAB strains proceeded in a progressive 3-stage manner that helps to profile the efficiency of LAB strains in expressing chosen enzymes (Stage 1), highlights the strains with affinity for flour as the substrate (Stage 2), and discerns strains that can adapt well in a simulated starter environment (Stage 3). The theoretical ability of LAB to express these enzymes was also assessed using Basic Local Alignment Search Tool (BLAST) analysis to identify the underlying genes in the whole genome sequence. By consolidating both experimental data and information obtained from BLAST, three LAB strains were deemed optimal in expressing enzymes, namely, Lb. delbrueckii subsp. bulgaricus (RBL 52), Lb. rhamnosus (RBL 102), and Lb. plantarum (ATCC 10241). Meanwhile, EPS-producing capabilities were observed for 10 out of 28 LAB strains, among which, Lactococcus lactis subsp. diacetylactis (RBL 37) had the highest total EPS yield (274.15 mg polysaccharide/L culture) and produced 46.2% polysaccharide with a molecular mass of more than 100 kDa.
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Affiliation(s)
- YiNing Dong
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Montreal, QC, Canada
| | - Jennifer Ronholm
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Montreal, QC, Canada
| | - Ismail Fliss
- Department of Food Science, Faculty of Agriculture and Food Sciences, Laval University, Quebec City, QC, Canada
| | - Salwa Karboune
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Montreal, QC, Canada.
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Goyal SP, Agarwal T, Mishra V, Kumar A, Saravanan C. Adsorption Characterization of Lactobacillus sp. for Di-(2-ethylhexyl) phthalate. Probiotics Antimicrob Proteins 2024; 16:519-530. [PMID: 36995550 DOI: 10.1007/s12602-023-10055-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2023] [Indexed: 03/31/2023]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP) is the widely detected plasticizer in foods whose exposure is associated with a myriad of human disorders. The present study focused on identifying Lactobacillus strains with high adsorption potential towards DEHP and further elucidating the mechanism of binding using HPLC, FTIR and SEM. Two strains, Lactobacillus rhamnosus GG and Lactobacillus plantarum MTCC 25,433, were found to rapidly adsorb more than 85% of DEHP in 2 h. Binding potential remained unaffected by heat treatment. Moreover, acid pre-treatment enhanced the DEHP adsorption. Chemical pre-treatments, such as NaIO4, pronase E or lipase, caused reduction in DEHP adsorption to 46% (LGG), 49% (MTCC 25,433) and 62% (MTCC 25,433), respectively, attributing it to cell wall polysaccharides, proteins and lipids. This was also corroborated by stretching vibrations of C = O, N-H, C-N and C-O functional groups. Furthermore, SDS and urea pre-treatment, demonstrated the crucial role of hydrophobic interactions in DEHP adsorption. The extracted peptidoglycan from LGG and MTCC 25,433 adsorbed 45% and 68% of DEHP, respectively, revealing the imperative role of peptidoglycan and its integrity in DEHP adsorption. These findings indicated that DEHP removal was based on physico-chemical adsorption and cell wall proteins, polysaccharides or peptidoglycan played a primary role in its adsorption. Owing to the high binding efficiency, L. rhamnosus GG and L. plantarum MTCC 25,433 were considered to be a potential detoxification strategy to mitigate the risk associated with the consumption of DEHP-contaminated foods.
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Affiliation(s)
- Shivani Popli Goyal
- Department of Basic and Applied Sciences, National Institute of Food Technology Entrepreneurship and Management, Sonipat, Haryana, 131028, India
| | - Tripti Agarwal
- Department of Agriculture and Environmental Sciences, National Institute of Food Technology Entrepreneurship and Management, Sonipat, Haryana, 131028, India
| | - Vijendra Mishra
- Department of Basic and Applied Sciences, National Institute of Food Technology Entrepreneurship and Management, Sonipat, Haryana, 131028, India
| | - Ankur Kumar
- Department of Basic and Applied Sciences, National Institute of Food Technology Entrepreneurship and Management, Sonipat, Haryana, 131028, India
| | - Chakkaravarthi Saravanan
- Department of Basic and Applied Sciences, National Institute of Food Technology Entrepreneurship and Management, Sonipat, Haryana, 131028, India.
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Bachtarzi N, Gomri MA, Meradji M, Gil-Cardoso K, Ortega N, Chomiciute G, Del Bas JM, López Q, Martínez V, Kharroub K. In vitro assessment of biofunctional properties of Lactiplantibacillus plantarum strain Jb21-11 and the characterization of its exopolysaccharide. Int Microbiol 2024; 27:239-256. [PMID: 37286917 DOI: 10.1007/s10123-023-00387-5] [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: 03/10/2023] [Revised: 05/25/2023] [Accepted: 06/01/2023] [Indexed: 06/09/2023]
Abstract
ABSTACT The microbiota of traditional food provides a rich reservoir of biodiversity to find new strains with interesting features for novel functional food formulation. Therefore, this study aimed to investigate the biofunctional potential of the lactic acid bacteria (LAB) strain Jb21-11 isolated from Jben, a traditional Algerian fresh cheese. This isolate was selected out of a collection of 154 LAB based on its exopolysaccharide (EPS) phenotype and was preliminarily identified by polyphasic characterization as Lactiplantibacillus plantarum (previously known as Lactobacillus plantarum) and its biofunctional properties were then assessed in vitro. The tested strain demonstrated good resistance to gastric juice, acidity around pH 2, and 2% (v/v) bile salts, which are important characteristics for potential biofunctional LAB candidates. It also showed a good production of ropy EPS with 674 mg/L on MRS medium. However, this ability appears to compromise the adhesion of the strain to Caco-2 cells (less than 1%), which according to our results, seems not to be related to autoaggregation and hydrophobicity (44.88 ± 0.028% and 16.59 ± 0.012%). Furthermore, promising antimicrobial activity against three pathogenic bacteria (Escherichia coli, Staphylococcus aureus, and Salmonella) was detected probably due to antimicrobial metabolites excreted during fermentation process into the medium. Moreover, the strain L. plantarum Jb21-11 displayed a therapeutic functionality with both anti-inflammatory and immunomodulatory action using RAW 264.7 cells. The chemical features of the novel ropy Jb21-11-EPS were also investigated revealing the presence of three monosaccharides, namely, mannose, galactose, and glucose, with a molar ratio of 5.42:1.00:4.52 linked together by α- and β-glycosidic bonds, presenting a relatively high molecular weight of 1.08 × 105 Da of interest for a texturing potential. Therefore, the new producing EPS strain Jb21-11 is a promising candidate for use as an adjunct culture for improving the texture of functional food.
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Affiliation(s)
- Nadia Bachtarzi
- Laboratory of Biotechnology and Food Quality (BIOQUAL), Institute of Nutrition, Food and Agri-Food Technologies (INATAA), University of Mentouri Brother's Constantine 1 (UFMC1), Road of Ain El Bey, 25000, Constantine, Algeria.
| | - Mohamed Amine Gomri
- Laboratory of Biotechnology and Food Quality (BIOQUAL), Institute of Nutrition, Food and Agri-Food Technologies (INATAA), University of Mentouri Brother's Constantine 1 (UFMC1), Road of Ain El Bey, 25000, Constantine, Algeria
| | - Meriem Meradji
- Laboratory of Biotechnology and Food Quality (BIOQUAL), Institute of Nutrition, Food and Agri-Food Technologies (INATAA), University of Mentouri Brother's Constantine 1 (UFMC1), Road of Ain El Bey, 25000, Constantine, Algeria
| | - Katherine Gil-Cardoso
- Eurecat, Centre Tecnològic de Catalunya, Technological Unit of Nutrition and Health, Reus, Spain
| | - Nàdia Ortega
- Eurecat, Centre Tecnològic de Catalunya, Technological Unit of Nutrition and Health, Reus, Spain
| | - Gertruda Chomiciute
- Eurecat, Centre Tecnològic de Catalunya, Technological Unit of Nutrition and Health, Reus, Spain
| | | | - Quiro López
- Creaciones Aromáticas Industriales SA, Cuatrecasas i Arimí, 2, 08192, Sant Quirze del Vallès, Barcelona, Spain
| | - Vanesa Martínez
- Creaciones Aromáticas Industriales SA, Cuatrecasas i Arimí, 2, 08192, Sant Quirze del Vallès, Barcelona, Spain
| | - Karima Kharroub
- Laboratory of Biotechnology and Food Quality (BIOQUAL), Institute of Nutrition, Food and Agri-Food Technologies (INATAA), University of Mentouri Brother's Constantine 1 (UFMC1), Road of Ain El Bey, 25000, Constantine, Algeria
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Ben Abdallah M, Chamkha M, Karray F, Sayadi S. Microbial diversity in polyextreme salt flats and their potential applications. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:11371-11405. [PMID: 38180652 DOI: 10.1007/s11356-023-31644-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 12/17/2023] [Indexed: 01/06/2024]
Abstract
Recent geological, hydrochemical, and mineralogical studies performed on hypersaline salt flats have given insights into similar geo-morphologic features on Mars. These salt-encrusted depressions are widely spread across the Earth, where they are characterized by high salt concentrations, intense UV radiation, high evaporation, and low precipitation. Their surfaces are completely dry in summer; intermittent flooding occurs in winter turning them into transitory hypersaline lakes. Thanks to new approaches such as culture-dependent, culture-independent, and metagenomic-based methods, it is important to study microbial life under polyextreme conditions and understand what lives in these dynamic ecosystems and how they function. Regarding these particular features, new halophilic microorganisms have been isolated from some salt flats and identified as excellent producers of primary and secondary metabolites and granules such as halocins, enzymes, carotenoids, polyhydroxyalkanoates, and exopolysaccharides. Additionally, halophilic microorganisms are implemented in heavy metal bioremediation and hypersaline wastewater treatment. As a result, there is a growing interest in the distribution of halophilic microorganisms around the world that can be looked upon as good models to develop sustainable biotechnological processes for all fields. This review provides insights into diversity, ecology, metabolism, and genomics of halophiles in hypersaline salt flats worldwide as well as their potential uses in biotechnology.
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Affiliation(s)
- Manel Ben Abdallah
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, BP 1177, 3018, Sfax, Tunisia.
| | - Mohamed Chamkha
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, BP 1177, 3018, Sfax, Tunisia
| | - Fatma Karray
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, BP 1177, 3018, Sfax, Tunisia
| | - Sami Sayadi
- Biotechnology Program, Center for Sustainable Development, College of Arts and Sciences, Qatar University, 2713, Doha, Qatar
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Wang K, Sun J, Zhao J, Gao Y, Yao D, Sun D, Tai M, Pan Y, Wang Y, Lu B, Zuo F. Immunomodulatory activity and protective effect of a capsular polysaccharide in Caenorhabditis elegans, isolated from Lactobacillus fermentum GBJ. Int J Biol Macromol 2023; 253:127443. [PMID: 37844812 DOI: 10.1016/j.ijbiomac.2023.127443] [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: 04/07/2023] [Revised: 08/31/2023] [Accepted: 10/12/2023] [Indexed: 10/18/2023]
Abstract
A capsular polysaccharide, namely CPS-2, was isolated from Lactobacillus fermentum GBJ, purified using DEAE-52 anion exchange chromatography, and structurally characterized. We found that CPS-2 is homogenous, has an average molecular weight of 377 KDa, and is mainly composed of galactose and glucose at a molar ratio of 1.54:1.00. Its backbone comprises α-D-Galp-(1 → 3), α-D-Galp-(1 → 3,6), β-D-Glcp-(1 → 2), β-D-Galp-(1 → 6), and α-D-Galp-(1 → 4) residues with a side chain of β-D-Glcp-(1→). CPS-2 exerts an immunomodulatory effect by improving the proliferation and phagocytosis of macrophage RAW264.7 and promoting the secretion of NO and cytokines. The maximum secretion levels of IL-1β, IL-6, IL-10, and TNF-α were 1.96-, 0.11-, 0.22-, and 0.46-fold higher than those of the control, respectively. Furthermore, CPS-2 could significantly enhance the antioxidant system, extend lifespan, and improve stress tolerance of Caenorhabditis elegans at both exposure doses of 31.25 and 62.5 μg/mL. The average lifespan of nematodes reached a maximum in the 62.5 μg/mL-treated group after 10.39 days, 6.56 h, and 23.56 h in normal, oxidative stress, and heat shock environment, with extension percentages of 16.61 %, 43.23 %, and 15.77 %, respectively; therefore, CPS-2 displays an anti-aging effect. The significant bioactivity of CPS-2 promotes its application as a promising immunomodulatory and anti-aging ingredient in the food or pharmaceutical field.
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Affiliation(s)
- Kun Wang
- College of Food science, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China; National Coarse Cereals Engineering Research Center, Daqing 163319, PR China
| | - Jingchen Sun
- College of Food science, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Jing Zhao
- College of Food science, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Yongjiao Gao
- College of Food science, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Di Yao
- College of Food science, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Daqing Sun
- National Coarse Cereals Engineering Research Center, Daqing 163319, PR China
| | - Mengdie Tai
- College of Food science, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Yuxi Pan
- College of Food science, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Yanjie Wang
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Baoxin Lu
- College of Food science, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China; National Coarse Cereals Engineering Research Center, Daqing 163319, PR China.
| | - Feng Zuo
- College of Food science, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China; Engineering Research Center of Processing and Utilization of Grain By-products, Ministry of Education, Daqing 163319, PR China.
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Farajinejad Z, Mohtarami F, Pirouzifard M, Amiri S, Hamishehkar H. In situ produced exopolysaccharides by Bacillus coagulansIBRC-M 10807 and its effects on properties of whole wheat sourdough. Food Sci Nutr 2023; 11:7000-7012. [PMID: 37970414 PMCID: PMC10630829 DOI: 10.1002/fsn3.3624] [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: 12/27/2022] [Revised: 07/23/2023] [Accepted: 07/27/2023] [Indexed: 11/17/2023] Open
Abstract
This study aimed to investigate in situ exopolysaccharides (EPSs) production by Bacillus coagulans IBRC-M 10807 under different fermentation conditions to improve the technical-functional properties of whole wheat flour sourdough and obtain high-quality products. For this purpose, the effectiveness of four efficient factors including B. coagulans (8 Log CFU/g), FOS (0%, 2.5%, and 5% based on flour weight), fermentation temperature (30, 35, and 40°C), and fermentation time (12, 18, and 24 h) was investigated on the production of functional sourdough. Our work focused on optimizing probiotic sourdough by investigating probiotic viability, pH, total titratable acidity, antioxidant properties, and EPS measurement. The first optimal formulation for maximized production of the in situ EPSs by the numerical optimization included FOS 0%, B. coagulans IBRC-M 10807 8 Log CFU/g, fermentation temperature of 30°C, and fermentation time of 12 h. In this case, EPSs was 59.28 mg/g and probiotic was 10.99 Log CFU/g. The second optimal formula by considering the highest viability of probiotic together with EPS production was determined as FOS 4.71%, B. coagulans IBRC-M 10807, 8 Log CFU/g, fermentation temperature of 30°C, and fermentation time of 20 h. The predicted amount of the EPSs and probiotic viability via the second formulation were 54.4 mg/g and 11.18 Log CFU/g, respectively. Analyses of optimal sourdough using FTIR, SEM, and DSC revealed that FOS and probiotics significantly reduced the enthalpy of amylopectin retrogradation and delayed it compared to other samples. Therefore, improving the final product's technological capabilities and shelf life can be credited with potential benefits.
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Affiliation(s)
- Zahra Farajinejad
- Department of Food Science and Technology, Faculty of AgricultureUrmia UniversityUrmiaIran
| | - Forogh Mohtarami
- Department of Food Science and Technology, Faculty of AgricultureUrmia UniversityUrmiaIran
| | - Mirkhalil Pirouzifard
- Department of Food Science and Technology, Faculty of AgricultureUrmia UniversityUrmiaIran
| | - Saber Amiri
- Department of Food Science and Technology, Faculty of AgricultureUrmia UniversityUrmiaIran
| | - Hamed Hamishehkar
- Drug Applied Research CenterTabriz University of Medical SciencesTabrizIran
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Karaca B. Exopolysaccharides of lactic acid bacteria isolated from honeybee gut and effects of their antibiofilm activity against Streptococcus mutans. AN ACAD BRAS CIENC 2023; 95:e20220979. [PMID: 37878910 DOI: 10.1590/0001-3765202320220979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 01/19/2023] [Indexed: 10/27/2023] Open
Abstract
Streptococcus mutans is one of the main factors in formation of cariogenic biofilms. New strategies need to be developed to reduce the formation of cariogenic biofilms. For this purpose, bacterial exopolysaccharides (EPS) could be considered as new agents against biofilms. Therefore, cell-bound (b-EPS) and released exopolysaccharides (r-EPS) were extracted from the strains Apilactobacillus kunkeei K1.10 and Latilactobacillus curvatus Kar.9b isolated from the microbiota of honeybees, and their antibiofilm effects on S. mutans biofilm formation were determined. The highest reduction in biofilm formation was achieved by r-EPS of L. curvatus Kar.9b and A. kunkeei K1.10. Scanning electron micrographs (SEM) showed that r-EPS inhibited biofilm formation by reducing adhesion of S. mutans. To increase the production of r-EPS from A. kunkeei K1.10, the effects of different incubation conditions were also analyzed. The highest EPS production was obtained during 48 h-incubation at 37ºC in a medium containing 1% fructose. r-EPS can be used as a raw material to inhibit cariogenic biofilms. Further studies revealing the detailed structural analysis of r-EPS and the mechanism of action of its antibiofilm effect could be beneficial. Finally, b-EPS and r-EPS from lactic acid bacteria were found to have very different properties in terms of their antibiofilm properties.
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Affiliation(s)
- Basar Karaca
- Ankara University, Faculty of Science, Department of Biology, 06100, Ankara, Turkey
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Dehghani Champiri I, Bamzadeh Z, Rahimi E, Rouhi L. Lacticaseibacillus paracasei LB12, a Potential Probiotic Isolated from Traditional Iranian Fermented Milk (Doogh). Curr Microbiol 2023; 80:333. [PMID: 37658854 DOI: 10.1007/s00284-023-03376-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 06/13/2023] [Indexed: 09/05/2023]
Abstract
In Iran, dairy-based fermented foods, like yogurt, cheese, fermented milk, buttermilk, kashk, butter, and Doogh are essential dietary components. Doogh is typically made using fermented yogurt or buttermilk. However, a literature review revealed a lack of research on extracting probiotics from Doogh during processing. As dairy products contain lactic acid bacteria, the aim was to isolate and identify them using culture and PCR-sequencing techniques. Samples of traditional Doogh were collected throughout the Chaharmahal Bakhtiari province of Iran. A specific number of strains have been isolated and among them, the strain LB12 was selected for further characterization based on its probiotic properties. Probiotic properties like adhesion capability, antagonistic activity, resistance to the simulated stomach and intestinal fluids, pH, and bile salt were assessed according to National Standard ISO 19459 of Iran. The LB12 strain was identified as Lacticaseibacillus paracasei by partial 16 rDNA sequence analysis. This L. paracasei strain demonstrated its in vitro resilience to stomach conditions with 58.04% survival at pH 3 and more than 50% resistance to different bile salt concentrations. L. paracasei LB12 showed a cell surface hydrophobicity of 38.18% and a 6.2 log CFU/ml resistance to simulated gastric and intestinal fluids, and a rate of auto- and co-aggregation of 15% and 22%, respectively. L. parasei LB12 showed also a moderate adhesion to HT-29 cell line. In conclusion, L. paracasei LB12 is considered a promising potential probiotic suitable for the development of food supplement and pharmaceutical products.
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Affiliation(s)
- Iman Dehghani Champiri
- Department of Microbiology, Faculty of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Zahra Bamzadeh
- Department of Microbiology, Faculty of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.
- Department of Microbiology, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran.
| | - Ebrahim Rahimi
- Department of Food Hygiene and Public Health, Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Leila Rouhi
- Cellular and Developmental Research Center, Faculty of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
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11
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Castro-López C, García-Galaz A, García HS, González-Córdova AF, Vallejo-Cordoba B, Hernández-Mendoza A. Potential probiotic lactobacilli strains isolated from artisanal Mexican Cocido cheese: evidence-based biosafety and probiotic action-related traits on in vitro tests. Braz J Microbiol 2023; 54:2137-2152. [PMID: 37450104 PMCID: PMC10485211 DOI: 10.1007/s42770-023-01059-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 07/02/2023] [Indexed: 07/18/2023] Open
Abstract
The biosafety of four potentially probiotic lactobacilli strains, isolated from artisanal Mexican Cocido cheese, was assessed through in vitro tests aimed to determine (1) the antibiotic susceptibility profile by broth microdilution, (2) the transferability of antibiotic resistance determinants by filter-mating, and (3) the phenotypic and genotypic stability during serial batch sub-culture (100-day period) by evaluating physiological and probiotic features and RAPD-PCR fingerprinting. Lactobacilli strains exhibited multidrug-resistance; however, resistance determinants were not transferred in the filter-mating assay. Significant (p < 0.05) differences were observed in bacterial morphology and some functional and technological properties when strains were serially sub-cultured over 50 generations (G50), compared to the initial cultures (G0). Conversely, the strains did not show mucinolytic and hemolytic activities either at G0 or after 100 generations (G100). Genetic polymorphism and genomic template instability on selected strains were detected, which suggest possible evolutionary arrangements that may occur when these bacteria are largely cultured. Our findings suggest that the assessed strains did not raise in vitro biosafety concerns; however, complementary studies are still needed to establish the safe potential applications in humans and animals.
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Affiliation(s)
- Cecilia Castro-López
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD), Carretera Gustavo Enrique Astiazarán Rosas 46. Hermosillo, Sonora, Sonora, 83304, México
| | - Alfonso García-Galaz
- Laboratorio de Microbiología Polifásica y Bioactividades, Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD, A.C.), Carretera Gustavo Enrique Astiazarán Rosas 46, Hermosillo, Sonora, 83304, México
| | - Hugo S García
- Unidad de Investigación y Desarrollo de Alimentos‒UNIDA, Tecnológico Nacional de México, Instituto Tecnológico de Veracruz, Miguel Ángel de Quevedo 2779, Veracruz, Veracruz, México, 91897
| | - Aarón F González-Córdova
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD), Carretera Gustavo Enrique Astiazarán Rosas 46. Hermosillo, Sonora, Sonora, 83304, México
| | - Belinda Vallejo-Cordoba
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD), Carretera Gustavo Enrique Astiazarán Rosas 46. Hermosillo, Sonora, Sonora, 83304, México
| | - Adrián Hernández-Mendoza
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD), Carretera Gustavo Enrique Astiazarán Rosas 46. Hermosillo, Sonora, Sonora, 83304, México.
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12
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Shi X, Gu R, Guo Y, Xiao H, Xu K, Li Y, Li C. Capsular polysaccharide-amikacin nanoparticles for improved antibacterial and antibiofilm performance. Int J Biol Macromol 2023:125325. [PMID: 37302623 DOI: 10.1016/j.ijbiomac.2023.125325] [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: 01/08/2023] [Revised: 05/29/2023] [Accepted: 06/08/2023] [Indexed: 06/13/2023]
Abstract
Natural nanoscale polysaccharide and its application have attracted much attention in recent years. In this study, we report for the first time that a novel naturally occurring capsular polysaccharide (CPS-605) from Lactobacillus plantarum LCC-605, which can self-assemble into spherical nanoparticles with an average diameter of 65.7 nm. To endow CPS-605 with more functionalities, we develop amikacin-functionalized capsular polysaccharide (CPS) nanoparticles (termed CPS-AM NPs) with improved antibacterial and antibiofilm activities against both Escherichia coli and Pseudomonas aeruginosa. They also exhibit faster bactericidal activity than AM alone. The high local positive charge density of CPS-AM NPs facilitates the interaction between the NPs and bacteria, leading to extraordinary bactericidal efficiencies (99.9 % and 100 % for E. coli and P. aeruginosa, respectively, within 30 min) by damaging the cell wall. Very interestingly, CPS-AM NPs exhibit an unconventional antibacterial mechanism against P. aeruginosa, that is, they can induce plasmolysis, along with bacterial cell surface disruption, cell inclusion release and cell death. In addition, CPS-AM NPs exhibit low cytotoxicity and negligible hemolytic activity, showing excellent biocompatibility. The CPS-AM NPs provide a new strategy for the design of next-generation antimicrobial agents that can reduce the working concentration of antibiotics to fight against bacterial resistance.
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Affiliation(s)
- Xiaotong Shi
- International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Ruihan Gu
- International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Yuxin Guo
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, New Brunswick E3B 5A3, Canada
| | - Kefei Xu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Yuan Li
- College of Resource & Environment, Yunnan Agriculture University, Kunming 650201, China
| | - Chengcheng Li
- International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China.
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13
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Yang Y, Bian H, Jia Z, Tu P. Design and Preparation of Ethylene Fluorescence Probes Based on Arylolefins and Grubbs Catalysts. ACS OMEGA 2023; 8:15350-15359. [PMID: 37151552 PMCID: PMC10157861 DOI: 10.1021/acsomega.3c00586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 04/07/2023] [Indexed: 05/09/2023]
Abstract
To detect the plant hormone ethylene, three arylolefins were employed to react with ethylene based on olefin metathesis. In this study, three fluorescence probes were successfully prepared using a first-generation Grubbs catalyst (G-1) and arylolefin with terminal vinyl groups. The probes were characterized using various techniques, including UV-vis, fluorescence, FT-IR, 1H NMR, 13C NMR, and 31P NMR spectroscopies and HRMS. The probes exhibited an emission maximum at 394 nm and showed excellent ethylene response. The detection limits for the probes were calculated to be 0.128, 0.074, and 0.188 μL/mL (3σ), respectively, based on fluorescence stimulation by ethylene gas. Additionally, the YGTZ-2 probe was used to detect ethylene gas during the storage process of tomatoes. This work expands the application of arylolefin in ethylene detection and provides a foundation for the development of economic, rapid, and convenient photosensitive sensors for ethylene in the future.
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Kütt ML, Orgusaar K, Stulova I, Priidik R, Pismennõi D, Vaikma H, Kallastu A, Zhogoleva A, Morell I, Kriščiunaite T. Starter culture growth dynamics and sensory properties of fermented oat drink. Heliyon 2023; 9:e15627. [PMID: 37180934 PMCID: PMC10173617 DOI: 10.1016/j.heliyon.2023.e15627] [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: 10/19/2022] [Revised: 04/08/2023] [Accepted: 04/17/2023] [Indexed: 05/16/2023] Open
Abstract
In the present study, an oat drink, a plant-based alternative to dairy products, was developed by fermenting the oat base with different vegan starter cultures. The desired pH below 4.2 was achieved in 12 h, regardless of starter culture used. Metagenomic sequencing revealed that S. thermophilus was the dominating species, ranging from 38% to 99% of the total microbial consortia. At lower pH values, population of L. acidophilus, L. plantarum and L. paracasei continued to increase in fermented oat drinks. Lactic acid was produced between 1.6 and 2.8 g/L. The sensory panel showed that all fermented oat drinks had a sour odor and taste. The volatile compounds identified belonged to the ketone, alcohol, aldehyde, acids, and furan classes. The concentration of the most preferred volatile components, such as diacetyl and acetoin, increased during fermentation. However, sensory evaluation showed that all samples were associated with cereals and not dairy in terms of taste and odor. Rheological analysis showed the formation of weak gel-like structures in fermented oat drinks. Overall, fermentation improved flavor and texture of the product. This study provides a broad overview of the oat drink fermentation process from the perspectives of starter culture growth, microbial consortium dynamics, lactic acid bacteria metabolism, and sensory profile formation.
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Affiliation(s)
- Mary-Liis Kütt
- Center of Food and Fermentation Technologies, Mäealuse 2/4, Tallinn, 12618, Estonia
| | - Kaisa Orgusaar
- Center of Food and Fermentation Technologies, Mäealuse 2/4, Tallinn, 12618, Estonia
| | - Irina Stulova
- Center of Food and Fermentation Technologies, Mäealuse 2/4, Tallinn, 12618, Estonia
| | - Reimo Priidik
- Center of Food and Fermentation Technologies, Mäealuse 2/4, Tallinn, 12618, Estonia
| | - Dmitri Pismennõi
- Center of Food and Fermentation Technologies, Mäealuse 2/4, Tallinn, 12618, Estonia
- Institute of Chemistry and Biotechnology, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Helen Vaikma
- Center of Food and Fermentation Technologies, Mäealuse 2/4, Tallinn, 12618, Estonia
- Department of Business Administration, School of Business and Governance, Tallinn University of Technology, Ehitajate tee 5, 12616 Tallinn, Estonia
| | - Aili Kallastu
- Center of Food and Fermentation Technologies, Mäealuse 2/4, Tallinn, 12618, Estonia
| | - Aleksandra Zhogoleva
- Center of Food and Fermentation Technologies, Mäealuse 2/4, Tallinn, 12618, Estonia
| | - Indrek Morell
- Center of Food and Fermentation Technologies, Mäealuse 2/4, Tallinn, 12618, Estonia
| | - Tiina Kriščiunaite
- Center of Food and Fermentation Technologies, Mäealuse 2/4, Tallinn, 12618, Estonia
- Corresponding author.
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Xiong J, Liu DM, Huang YY. Exopolysaccharides from Lactiplantibacillus plantarum: isolation, purification, structure–function relationship, and application. Eur Food Res Technol 2023. [DOI: 10.1007/s00217-023-04237-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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16
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Giordani B, Naldi M, Croatti V, Parolin C, Erdoğan Ü, Bartolini M, Vitali B. Exopolysaccharides from vaginal lactobacilli modulate microbial biofilms. Microb Cell Fact 2023; 22:45. [PMID: 36890519 PMCID: PMC9993704 DOI: 10.1186/s12934-023-02053-x] [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: 01/09/2023] [Accepted: 03/02/2023] [Indexed: 03/10/2023] Open
Abstract
BACKGROUND Exopolysaccharides (EPS) secreted by beneficial lactobacilli exert a plethora of positive activities, but little is known about their effects on biofilms of opportunistic vaginal pathogens and especially on biofilms of lactobacilli themselves. Here, the EPS produced by six vaginal lactobacilli, belonging to Lactobacillus crispatus (BC1, BC4, BC5) and Lactobacillus gasseri (BC9, BC12, BC14) species were isolated from cultural supernatants and lyophilized. RESULTS Lactobacillus EPS were chemically characterized in terms of monosaccharide composition by liquid chromatography (LC) analysis coupled to UV and mass spectrometry (MS) detection. Moreover, the ability of EPS (0.1, 0.5, 1 mg/mL) to stimulate the biofilm formation of lactobacilli and to inhibit the formation of pathogens' biofilms was evaluated by crystal violet (CV) staining and 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay. Isolated EPS (yields 133-426 mg/L) were heteropolysaccharides mainly composed of D-mannose (40-52%) and D-glucose (11-30%). For the first time we demonstrated that Lactobacillus EPS were able to stimulate in a dose-dependent manner (p < 0.05) the formation of biofilms of ten strains belonging to L. crispatus, L. gasseri and Limosilactobacillus vaginalis species, in terms of cell viability (84-282% increase at 1 mg/mL) and especially biofilm biomass (40-195% increase at 1 mg/mL), quantified with MTT assay and CV staining, respectively. EPS released from L. crispatus and L. gasseri were found to better stimulate the biofilms of the same producer species rather than that of other species, including producing strains themselves and other strains. Conversely, the biofilm formation of bacterial (Escherichia coli, Staphylococcus spp., Enterococcus spp. and Streptococcus agalactiae) and fungal (Candida spp.) pathogens was inhibited. The anti-biofilm activity was dose-dependent and was more marked for L. gasseri-derived EPS (inhibition up to 86%, 70%, and 58% at 1 mg/mL, 0.5 mg/mL, and 0.1 mg/mL, respectively), whilst L. crispatus-derived EPS resulted overall less efficient (inhibition up to 58% at 1 mg/mL and 40% at 0.5 mg/mL) (p < 0.05). CONCLUSIONS Lactobacilli-derived EPS favour the biofilm formation of lactobacilli preventing, at the same time, that of opportunistic pathogens. These results support the possible employment of EPS as postbiotics in medicine as a therapeutic/preventive strategy to counteract vaginal infections.
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Affiliation(s)
- Barbara Giordani
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Marina Naldi
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Vanessa Croatti
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Carola Parolin
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | | | - Manuela Bartolini
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Beatrice Vitali
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy.
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Zhao X, Liang Q. Optimization, Probiotic Characteristics, and Rheological Properties of Exopolysaccharides from Lactiplantibacillus plantarum MC5. Molecules 2023; 28:molecules28062463. [PMID: 36985435 PMCID: PMC10058658 DOI: 10.3390/molecules28062463] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/26/2023] [Accepted: 03/02/2023] [Indexed: 03/10/2023] Open
Abstract
This study optimized the exopolysaccharides (EPS) production for Lactiplantibacillus plantarum MC5 (Lp. plantarum MC5) and evaluated the resistance to human simulated digestive juices, antioxidant activity in vitro, and rheological properties of EPS-MC5. The results showed that maximum EPS production of 345.98 mg/L (about 1.5-old greater than the initial production) was obtained at optimal conditions of inoculum size (4.0%), incubation time (30 h), incubation temperature (34.0 °C), and initial pH value (6.40). Furthermore, the resisting-digestion capacity of EPS-MC5 after 180 min in α-amylase, simulated gastric juice (pH 2.0, 3.0, 4.0), and simulated intestinal juice (pH 6.8) was 98.59%, 98.62%, 98.78%, 98.86%, and 98.74%, respectively. In addition, the radical scavenging rates of DPPH•, ABTS•, •OH, and ferric-iron reducing power (OD700) of EPS-MC5 were 73.33%, 87.74%, 46.07%, and 1.20, respectively. Furthermore, rheological results showed that the EPS-MC5 had a higher apparent viscosity (3.01 Pa) and shear stress (41.78 Pa), and the viscoelastic modulus (84.02 and 161.02 Pa at the shear frequency of 100 Hz). These results provide a new insight into the application of EPS in human health and functional foods, which could also improve theoretical guidance for the industrial application of EPS.
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Affiliation(s)
| | - Qi Liang
- Correspondence: ; Tel.: +86-139-1903-4438
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The Profile of Exopolysaccharides Produced by Various Lactobacillus Species from Silage during Not-Fat Milk Fermentation. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9020197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
The exopolysaccharides (EPS) produced by lactic acid bacteria (LAB) and released into fermented milk play a protective role from stress factors as well as improve emulsifying and thickening properties of the product, reduce syneresis, and increase elasticity. Here we report the relationship between the properties, composition, and microstructure of EPS produced by six different strains of lactobacilli (L. bulgaricus and five strains isolated from silage). The presence of fructose together with negative-charged uronic acid was found to play a significant role in changing the EPS properties. Thus, the increased fraction of rhamnose and arabinose and a decrease in xylose leads to compaction of the EPS, decreased porosity and increased both OH- and superoxide scavenging and Fe-chelating activities. By contrast, increased xylose and low rhamnose and arabinose apparently leads to loss of large aggregates and high DPPH activity and FRAP. The high content of glucose, however, provides the formation of large pores. The increased fructan fraction (69.9 mol%) with a high fraction of galacturonic (18.2 mol%) and glucuronic acids (6.7 mol%) apparently determines the highly porous spongy-folded EPS microstructure. Taken together, our results indicate that both the quantitative characteristics of the individual components of the fraction and the structural features of EPS are important for the antioxidant potential of fermented milk and depend on the strain used for milk fermentation, suggesting the advantage of a multicomponent starter to achieve the optimal beneficial properties of fermented milk.
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Soltani N, Abbasi S, Baghaeifar S, Taheri E, Farhoudi Sefidan Jadid M, Emami P, Abolhasani K, Aslanshirzadeh F. Antibacterial and antibiofilm activity of Lactobacillus strains secretome and extraction against Escherichia coli isolated from urinary tract infection. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2022; 36:e00760. [PMID: 36081611 PMCID: PMC9445990 DOI: 10.1016/j.btre.2022.e00760] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/19/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
The purpose of this study was to antibacterial, and antibiofilm activity of two Lactobacillus strains secretome and extraction against E. coli isolated from women with urinary tract infection (UTI). We isolated 100 E. coli samples from women with UTI. Lactobacillus acidophilus and Lactobacillus casei characteristics were evaluated, and their secretome and extraction were prepared. The antibacterial and antibiofilm activity of secretome and extraction of both Lactobacillus strains were evaluated against isolated E. coli samples. L. acidophilus and L. casei were able to tolerate pH 3, bile salts, and pancreatic enzymes. Both probiotics were not resistant to antibiotics and demonstrated an appropriate ability to adhere to the intestinal epithelial cells. Secretome and extraction of L. acidophilus and L. casei strains showed a good antibacterial and antibiofilm against E. coli isolates. Generally, present study suggested that the secretome and extraction of L. acidophilus and L. casei strains exhibits a good antimicrobial activity.
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Affiliation(s)
- Nayemeh Soltani
- Department of Microbiology, Urmia Branch, Islamic Azad University, Urmia, Iran
| | - Samane Abbasi
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
| | - Sevda Baghaeifar
- Department of Biotechnology, Urmia Branch, Islamic Azad University, Urmia, Iran
| | - Elham Taheri
- Department of Pharmaceutical Biotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Parisa Emami
- Department of Genetics, Ahar Branch, Islamic Azad University, Ahar, Iran
| | - Kamilia Abolhasani
- Department of Anesthesia, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Firouz Aslanshirzadeh
- Department of Infectious Disease, Tabriz University of Medical Sciences, Tabriz, Iran
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Analysis of Chemical Structure and Antibiofilm Properties of Exopolysaccharides from Lactiplantibacillus plantarum EIR/IF-1 Postbiotics. Microorganisms 2022; 10:microorganisms10112200. [DOI: 10.3390/microorganisms10112200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/01/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
Abstract
Previous studies have indicated that the exopolysaccharides of lactic acid bacteria exhibit antibiofilm activity against non-oral bacteria by preventing their initial adhesion to surfaces and by downregulating the expression of genes responsible for their biofilm formation. The aims of this study were to (1) characterize the exopolysaccharides (EPSs) of Lactobacillus plantarum EIR/IF-1 postbiotics, (2) test their antibiofilm effect on dual biofilms, and (3) evaluate their bacterial auto-aggregation, co-aggregation, and hydrocarbon-binding inhibitory activity. The EPSs were characterized by FTIR, HPLC, and thermogravimetric analysis. Bacterial auto- and co-aggregation were tested by Kolenbrander’s method and hydrocarbon binding was tested by Rosenberg’s method. Dual biofilms were formed by culturing Fusobacterium nucleatum ATCC 25586 with one of the following bacteria: Prevotella denticola ATCC 33185, P. denticola AHN 33266, Porphyromonas gingivalis ATCC 33277, P. gingivalis AHN 24155, and Filifactor alocis ATCC 35896. The EPSs contained fractions with different molecular weights (51 and 841 kDa) and monosaccharides of glucose, galactose, and fructose. The EPSs showed antibiofilm activity in all the biofilm models tested. The EPSs may have inhibited bacterial aggregation and binding to hydrocarbons by reducing bacterial hydrophobicity. In conclusion, the EPSs of L. plantarum EIR/IF-1, which consists of two major fractions, exhibited antibiofilm activity against oral bacteria, which can be explained by the inhibitory effect of EPSs on the auto-aggregation and co-aggregation of bacteria and their binding to hydrocarbons.
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Cimini D, D’ambrosio S, Stellavato A, Fusco A, Corsaro MM, Dabous A, Casillo A, Donnarumma G, Giori AM, Schiraldi C. Optimization of growth of Levilactobacillus brevis SP 48 and in vitro evaluation of the effect of viable cells and high molecular weight potential postbiotics on Helicobacter pylori. Front Bioeng Biotechnol 2022; 10:1007004. [PMID: 36394050 PMCID: PMC9661962 DOI: 10.3389/fbioe.2022.1007004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 10/14/2022] [Indexed: 09/29/2023] Open
Abstract
Several Levilactobacillus brevis strains have the potential to be used as probiotics since they provide health benefits due to the interaction of live cells, and of their secreted products, with the host (tissues). Therefore, the development of simple fermentation processes that improve cell viability to reduce industrial production costs, and at the same time the characterization and biological evaluation of cell-free postbiotics that can further promote application, are of great interest. In the present study, small scale batch fermentations on semi defined media, deprived of animal derived raw materials, were used to optimize growth of L. brevis SP48, reaching 1.2 ± 0.4 × 1010 CFU/ml of viable cells after 16 h of growth. Displacement, competition, and inhibition assays compared the effect, on Helicobacter pylori, of L. brevis cells to that of its partially purified potentially postbiotic fraction rich in exopolysaccharides and proteins. The expression of pro and anti-inflammatory biochemical markers indicated that both samples activated antimicrobial defenses and innate immunity in a gastric model. Moreover, these compounds also acted as modulators of the inflammatory response in a gut in vitro model. These data demonstrate that the high molecular weight compounds secreted by L. brevis SP48 can contrast H. pylori and reduce inflammation related to intestinal bowel disease, potentially overcoming issues related to the preservation of probiotic viability.
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Affiliation(s)
- Donatella Cimini
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, Caserta, Italy
| | - Sergio D’ambrosio
- Department of Experimental Medicine, University of Campania “L.Vanvitelli”, Naples, Italy
| | - Antonietta Stellavato
- Department of Experimental Medicine, University of Campania “L.Vanvitelli”, Naples, Italy
| | - Alessandra Fusco
- Department of Experimental Medicine, University of Campania “L.Vanvitelli”, Naples, Italy
| | - Maria Michela Corsaro
- Department of Chemical Sciences, University of Naples “Federico II”, Complesso Universitario Monte S. Angelo, Naples, Italy
| | - Azza Dabous
- Department of Experimental Medicine, University of Campania “L.Vanvitelli”, Naples, Italy
| | - Angela Casillo
- Department of Chemical Sciences, University of Naples “Federico II”, Complesso Universitario Monte S. Angelo, Naples, Italy
| | - Giovanna Donnarumma
- Department of Experimental Medicine, University of Campania “L.Vanvitelli”, Naples, Italy
| | | | - Chiara Schiraldi
- Department of Experimental Medicine, University of Campania “L.Vanvitelli”, Naples, Italy
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22
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Exopolysaccharides of Lactic Acid Bacteria: Production, Purification and Health Benefits towards Functional Food. Nutrients 2022; 14:nu14142938. [PMID: 35889895 PMCID: PMC9319976 DOI: 10.3390/nu14142938] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/07/2022] [Accepted: 07/11/2022] [Indexed: 02/01/2023] Open
Abstract
Lactic acid bacteria (LAB) are capable of synthesising metabolites known as exopolysaccharides (EPS) during fermentation. Traditionally, EPS plays an important role in fermented dairy products through their gelling and thickening properties, but they can also be beneficial to human health. This bioactivity has gained attention in applications for functional foods, which leads them to have prebiotic, immunomodulatory, antioxidant, anti-tumour, cholesterol-lowering and anti-obesity activity. Understanding the parameters and conditions is crucial to optimising the EPS yields from LAB for applications in the food industry. This review provides an overview of the functional food market together with the biosynthesis of EPS. Factors influencing the production of EPS as well as methods for isolation, characterisation and quantification are reviewed. Finally, the health benefits associated with EPS are discussed.
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23
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Letizia F, Albanese G, Testa B, Vergalito F, Bagnoli D, Di Martino C, Carillo P, Verrillo L, Succi M, Sorrentino E, Coppola R, Tremonte P, Lombardi SJ, Di Marco R, Iorizzo M. In Vitro Assessment of Bio-Functional Properties from Lactiplantibacillus plantarum Strains. Curr Issues Mol Biol 2022; 44:2321-2334. [PMID: 35678687 PMCID: PMC9164048 DOI: 10.3390/cimb44050158] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 11/24/2022] Open
Abstract
In recent years, alongside the conventional screening procedures for the evaluation of probiotics for human usage, the pharmaceutical and food industries have encouraged scientific research towards the selection of new probiotic bacterial strains with particular functional features. Therefore, this study intended to explore novel functional properties of five Lactiplantibacillus plantarum strains isolated from bee bread. Specifically, antioxidant, antimicrobial and β-glucosidase activities, exopolysaccharides (EPS) production and the ability to synthesize γ-aminobutyric acid (GABA) were evaluated. The results demonstrated that the investigated L. plantarum strains were effective in inhibiting the growth of some human opportunistic pathogens in vitro (Pseudomonas aeruginosa, Escherichia coli, Proteus mirabilis, Enterococcus faecalis and Staphylococcus aureus). Moreover, the evaluation of antioxidant and β-glucosidase activity and of EPS and GABA production, revealed a different behavior among the strains, testifying how these properties are strongly strain-dependent. This suggests that a careful selection within a given species is important in order to identify appropriate strains for specific biotechnological applications. The results highlighted that the five strains of L. plantarum are promising candidates for application as dietary supplements in the human diet and as microbial cultures in specific food productions.
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Affiliation(s)
- Francesco Letizia
- Department of Agriculture, Environmental and Food Sciences, University of Molise, Via De Sanctis, 86100 Campobasso, Italy; (F.L.); (G.A.); (B.T.); (F.V.); (D.B.); (C.D.M.); (M.S.); (R.C.); (P.T.); (S.J.L.)
| | - Gianluca Albanese
- Department of Agriculture, Environmental and Food Sciences, University of Molise, Via De Sanctis, 86100 Campobasso, Italy; (F.L.); (G.A.); (B.T.); (F.V.); (D.B.); (C.D.M.); (M.S.); (R.C.); (P.T.); (S.J.L.)
| | - Bruno Testa
- Department of Agriculture, Environmental and Food Sciences, University of Molise, Via De Sanctis, 86100 Campobasso, Italy; (F.L.); (G.A.); (B.T.); (F.V.); (D.B.); (C.D.M.); (M.S.); (R.C.); (P.T.); (S.J.L.)
| | - Franca Vergalito
- Department of Agriculture, Environmental and Food Sciences, University of Molise, Via De Sanctis, 86100 Campobasso, Italy; (F.L.); (G.A.); (B.T.); (F.V.); (D.B.); (C.D.M.); (M.S.); (R.C.); (P.T.); (S.J.L.)
| | - Diletta Bagnoli
- Department of Agriculture, Environmental and Food Sciences, University of Molise, Via De Sanctis, 86100 Campobasso, Italy; (F.L.); (G.A.); (B.T.); (F.V.); (D.B.); (C.D.M.); (M.S.); (R.C.); (P.T.); (S.J.L.)
| | - Catello Di Martino
- Department of Agriculture, Environmental and Food Sciences, University of Molise, Via De Sanctis, 86100 Campobasso, Italy; (F.L.); (G.A.); (B.T.); (F.V.); (D.B.); (C.D.M.); (M.S.); (R.C.); (P.T.); (S.J.L.)
| | - Petronia Carillo
- Department of Environmental Biological and Pharmaceutical Sciences and Technologies, University of Campania “Luigi Vanvitelli”, Via Vivaldi 43, 81100 Caserta, Italy;
| | - Lucia Verrillo
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso”, National Research Council (CNR), 80131 Naples, Italy;
| | - Mariantonietta Succi
- Department of Agriculture, Environmental and Food Sciences, University of Molise, Via De Sanctis, 86100 Campobasso, Italy; (F.L.); (G.A.); (B.T.); (F.V.); (D.B.); (C.D.M.); (M.S.); (R.C.); (P.T.); (S.J.L.)
| | - Elena Sorrentino
- Department of Agriculture, Environmental and Food Sciences, University of Molise, Via De Sanctis, 86100 Campobasso, Italy; (F.L.); (G.A.); (B.T.); (F.V.); (D.B.); (C.D.M.); (M.S.); (R.C.); (P.T.); (S.J.L.)
- Correspondence: (E.S.); (M.I.)
| | - Raffaele Coppola
- Department of Agriculture, Environmental and Food Sciences, University of Molise, Via De Sanctis, 86100 Campobasso, Italy; (F.L.); (G.A.); (B.T.); (F.V.); (D.B.); (C.D.M.); (M.S.); (R.C.); (P.T.); (S.J.L.)
| | - Patrizio Tremonte
- Department of Agriculture, Environmental and Food Sciences, University of Molise, Via De Sanctis, 86100 Campobasso, Italy; (F.L.); (G.A.); (B.T.); (F.V.); (D.B.); (C.D.M.); (M.S.); (R.C.); (P.T.); (S.J.L.)
| | - Silvia Jane Lombardi
- Department of Agriculture, Environmental and Food Sciences, University of Molise, Via De Sanctis, 86100 Campobasso, Italy; (F.L.); (G.A.); (B.T.); (F.V.); (D.B.); (C.D.M.); (M.S.); (R.C.); (P.T.); (S.J.L.)
| | - Roberto Di Marco
- Department of Medicine and Health Science “V. Tiberio”, Università degli Studi del Molise, 86100 Campobasso, Italy;
| | - Massimo Iorizzo
- Department of Agriculture, Environmental and Food Sciences, University of Molise, Via De Sanctis, 86100 Campobasso, Italy; (F.L.); (G.A.); (B.T.); (F.V.); (D.B.); (C.D.M.); (M.S.); (R.C.); (P.T.); (S.J.L.)
- Correspondence: (E.S.); (M.I.)
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24
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Su L, Ma F, An Z, Ji X, Zhang P, Yue Q, Zhao C, Sun X, Li K, Li B, Liu X, Zhao L. The Metabolites of Lactobacillus fermentum F-B9-1 Relieved Dextran Sulfate Sodium-Induced Experimental Ulcerative Colitis in Mice. Front Microbiol 2022; 13:865925. [PMID: 35572623 PMCID: PMC9096258 DOI: 10.3389/fmicb.2022.865925] [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: 01/30/2022] [Accepted: 04/04/2022] [Indexed: 11/13/2022] Open
Abstract
Because of the increased incidence and prevalence, ulcerative colitis (UC) has become a global health issue in the world. Current therapies for UC are not totally effective which result in persistent and recurrent symptom of many patients. Lactobacillus with anti-inflammatory effects might be beneficial to the prevention or treatment for UC. Here, we examined the ameliorative effects of the metabolites of Lactobacillus fermentum F-B9-1 (MLF) in Caco-2 cells and dextran sodium sulfate (DSS)-induced UC model mice. MLF displayed intestinal barrier-protective activities in Caco-2 cells by increasing the expression of Occludin and ZO-1. They also showed anti-inflammatory potential in interleukin (IL)-1β and IL-6. In order to further examine the in vivo anti-inflammatory effect of MLF, the MLF was gavaged in the DSS-induced UC model mice. The intragastric administration of MLF effectively alleviated colitis symptoms of weight loss, diarrhea, colon shortening, and histopathological scores, protected intestinal barrier function by increasing Occludin and ZO-1, and attenuated colonic and systemic inflammation by suppressing production of IL-1β and IL-6. Finally, the use of MLF remodeled the diversity of the gut microbiota and increased the number of beneficial microorganisms. Overall, the results demonstrated that MLF relieved DSS-induced UC in mice. And MLF might be an effective therapy method to UC in the clinic in the future.
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Affiliation(s)
- Le Su
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China.,Shengshengxiangrong (Shandong) Biotechnology Co., Ltd., Jinan, China
| | - Feifan Ma
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Zaiyong An
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Xiuyu Ji
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Ping Zhang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Qiulin Yue
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Chen Zhao
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Xin Sun
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Kunlun Li
- Jinan Hangchen Biotechnology Co., Ltd., Jinan, China
| | - Baojun Li
- Jinan Hangchen Biotechnology Co., Ltd., Jinan, China
| | - Xinli Liu
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Lin Zhao
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China.,Shandong Chenzhang Biotechnology Co., Ltd., Jinan, China
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25
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Pourjafar H, Ansari F, Sadeghi A, Samakkhah SA, Jafari SM. Functional and health-promoting properties of probiotics' exopolysaccharides; isolation, characterization, and applications in the food industry. Crit Rev Food Sci Nutr 2022; 63:8194-8225. [PMID: 35266799 DOI: 10.1080/10408398.2022.2047883] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Exopolysaccharides (EPS) are extracellular sugar metabolites/polymers of some slim microorganisms and, a wide variety of probiotics have been broadly investigated for their ability to produce EPS. EPS originated from probiotics have potential applications in food, pharmaceutical, cosmetology, wastewater treatment, and textiles industries, nevertheless slight is recognized about their function. The present review purposes to comprehensively discuss the structure, classification, biosynthesis, extraction, purification, sources, health-promoting properties, techno-functional benefits, application in the food industry, safety, toxicology, analysis, and characterization methods of EPS originated from probiotic microorganisms. Various studies have shown that probiotic EPS used as stabilizers, emulsifiers, gelling agents, viscosifiers, and prebiotics can alter the nutritional, texture, and rheological characteristics of food and beverages and play a major role in improving the quality of these products. Numerous studies have also proven the beneficial health effects of probiotic EPS, including antioxidant, antimicrobial, anti-inflammatory, immunomodulatory, anticancer, antidiabetic, antibiofilm, antiulcer, and antitoxin activities. Although the use of probiotic EPS has health effects and improves the organoleptic and textural properties of food and pharmaceutical products and there is a high tendency for their use in related industries, the production yield of these products is low and requires basic studies to support their products in large scale.
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Affiliation(s)
- Hadi Pourjafar
- Dietary Supplements and Probiotic Research Center, Alborz University of Medical Sciences, Karaj, Iran
- Department of Food Sciences and Nutrition, Maragheh University of Medical Sciences, Maragheh, Iran
| | - Fereshteh Ansari
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
- Research Center for Evidence-Based Medicine, Health Management and Safety Promotion Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
- Iranian EBM Centre: A Joanna Briggs Institute Affiliated Group, Tabriz, Iran
| | - Alireza Sadeghi
- Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Shohre Alian Samakkhah
- Department of Food Hygiene and Quality Control, Faculty of Veterinary of Medicine, Amol University of Special Modern Technology, Amol, Iran
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, Ourense, Spain
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26
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Efficient isolation of membrane-associated exopolysaccharides of four commercial bifidobacterial strains. Carbohydr Polym 2022; 278:118913. [PMID: 34973732 DOI: 10.1016/j.carbpol.2021.118913] [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: 08/24/2021] [Revised: 10/27/2021] [Accepted: 11/14/2021] [Indexed: 11/23/2022]
Abstract
Bifidobacteria confer many health effects, such as fiber digestion, pathogen inhibition and immune system maturation, especially in the newborn infant. The bifidobacterial exopolysaccharides (EPS) are often associated with important health effects, but their thorough investigation is hampered by lack of knowledge of the EPS localization, which is important for efficient EPS isolation. Here we present a straightforward isolation procedure to obtain EPS of four commercial bifidobacterial strains (B. adolescentis, B. bifidum, B. breve, and B. infantis), that are localized at the cell membrane (evidenced using cryo-EM). This procedure can be applied to other bifidobacterial strains, to facilitate the easy isolation and purification for biological experiments and future application in nutraceuticals. In addition, we demonstrate structural differences in the EPS of the four bifidobacterial strains, in terms of monosaccharide composition and size, highlighting the potential of the isolated EPS for determining specific structure-activity effects of bifidobacteria.
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27
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Bhawal S, Kumari A, Kapila S, Kapila R. Biofunctional Attributes of Surface Layer Protein and Cell-Bound Exopolysaccharide from Probiotic Limosilactobacillus fermentum (MTCC 5898). Probiotics Antimicrob Proteins 2022; 14:360-371. [PMID: 35066819 DOI: 10.1007/s12602-021-09891-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2021] [Indexed: 12/01/2022]
Abstract
The probiotic extracellular matrix components (ECM) have been considered as an important factor in eliciting the beneficial roles of the bacteria. The study involved the growth phase-dependent extraction of the surface layer protein (SLP) and cell-bound exopolysaccharide (EPS-b) from novel Limosilactobacillus fermentum (MTCC 5898). Both SLP and EPS-b were optimally extracted at the late logarithmic phase of the bacteria upon 8 h of incubation. Furthermore, the adhesive, immunomodulatory, and anti-oxidative potential of the extracted components were evaluated using in vitro models. The major role of SLP was evidenced on bacterial adhesion to mucin and was related to its hydrophobic character. Under in vitro conditions, no effect of SLP and EPS-b was observed on the proliferation of murine splenocytes; however, both the components stimulated the phagocytosis of murine peritoneal macrophages at varying concentrations. Furthermore, all the components exhibited strong radical scavenging, chelating, and reducing potential with increasing concentration. Therefore, the ECM components of L. fermentum exhibited a variable biofunctional effect, providing crucial information to enable its further use as functional foods and overcome the challenges posed by probiotics.
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Affiliation(s)
- Shalaka Bhawal
- Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Ankita Kumari
- Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Suman Kapila
- Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Rajeev Kapila
- Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India.
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28
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Fadiji AE, Babalola OO, Santoyo G, Perazzolli M. The Potential Role of Microbial Biostimulants in the Amelioration of Climate Change-Associated Abiotic Stresses on Crops. Front Microbiol 2022; 12:829099. [PMID: 35095828 PMCID: PMC8795815 DOI: 10.3389/fmicb.2021.829099] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 12/29/2021] [Indexed: 02/05/2023] Open
Abstract
Crop plants are more often exposed to abiotic stresses in the current age of fast-evolving climate change. This includes exposure to extreme and unpredictable changes in climatic conditions, phytosanitary hazards, and cultivation conditions, which results in drastic losses in worldwide agricultural productions. Plants coexist with microbial symbionts, some of which play key roles in the ecosystem and plant processes. The application of microbial biostimulants, which take advantage of symbiotic relationships, is a long-term strategy for improving plant productivity and performance, even in the face of climate change-associated stresses. Beneficial filamentous fungi, yeasts, and bacteria are examples of microbial biostimulants, which can boost the growth, yield, nutrition and stress tolerance in plants. This paper highlights recent information about the role of microbial biostimulants and their potential application in mitigating the abiotic stresses occurring on crop plants due to climate change. A critical evaluation for their efficient use under diverse climatic conditions is also made. Currently, accessible products generally improve cultural conditions, but their action mechanisms are mostly unknown, and their benefits are frequently inconsistent. Thus, further studies that could lead to the more precisely targeted products are discussed.
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Affiliation(s)
- Ayomide Emmanuel Fadiji
- Food Security and Safety Niche, Faculty of Natural and Agricultural Sciences, North-West University, Potchefstroom, South Africa
| | - Olubukola Oluranti Babalola
- Food Security and Safety Niche, Faculty of Natural and Agricultural Sciences, North-West University, Potchefstroom, South Africa
| | - Gustavo Santoyo
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | - Michele Perazzolli
- Center Agriculture Food Environment (C3A), University of Trento, San Michele all’Adige, Italy
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all’Adige, Italy
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29
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Jurášková D, Ribeiro SC, Silva CCG. Exopolysaccharides Produced by Lactic Acid Bacteria: From Biosynthesis to Health-Promoting Properties. Foods 2022; 11:156. [PMID: 35053888 PMCID: PMC8774684 DOI: 10.3390/foods11020156] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/02/2022] [Accepted: 01/04/2022] [Indexed: 12/13/2022] Open
Abstract
The production of exopolysaccharides (EPS) by lactic acid bacteria (LAB) has attracted particular interest in the food industry. EPS can be considered as natural biothickeners as they are produced in situ by LAB and improve the rheological properties of fermented foods. Moreover, much research has been conducted on the beneficial effects of EPS produced by LAB on modulating the gut microbiome and promoting health. The EPS, which varies widely in composition and structure, may have diverse health effects, such as glycemic control, calcium and magnesium absorption, cholesterol-lowering, anticarcinogenic, immunomodulatory, and antioxidant effects. In this article, the latest advances on structure, biosynthesis, and physicochemical properties of LAB-derived EPS are described in detail. This is followed by a summary of up-to-date methods used to detect, characterize and elucidate the structure of EPS produced by LAB. In addition, current strategies on the use of LAB-produced EPS in food products have been discussed, focusing on beneficial applications in dairy products, gluten-free bakery products, and low-fat meat products, as they positively influence the consistency, stability, and quality of the final product. Highlighting is also placed on reports of health-promoting effects, with particular emphasis on prebiotic, immunomodulatory, antioxidant, cholesterol-lowering, anti-biofilm, antimicrobial, anticancer, and drug-delivery activities.
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Affiliation(s)
| | | | - Celia C. G. Silva
- Institute of Agricultural and Environmental Research and Technology (IITAA), University of the Azores, 9700-042 Angra do Heroísmo, Azores, Portugal; (D.J.); (S.C.R.)
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30
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Elmansy EA, Elkady EM, Asker MS, Abdou AM, Abdallah NA, Amer SK. Exopolysaccharide produced by Lactiplantibacillus plantarum RO30 isolated from Romi cheese: characterization, antioxidant and burn healing activity. World J Microbiol Biotechnol 2022; 38:245. [PMID: 36287274 PMCID: PMC9605930 DOI: 10.1007/s11274-022-03439-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 10/10/2022] [Indexed: 11/26/2022]
Abstract
Microbial exopolysaccharides (EPSs) extracted from lactic acid bacteria (LAB) are generally recognized as safe. They have earned popularity in recent years because of their exceptional biological features. Therefore, the present study main focus was to study EPS-production from probiotic LAB and to investigate their antioxidant and burn wound healing efficacy. Seventeen LAB were isolated from different food samples. All of them showed EPS-producing abilities ranging from 1.75 ± 0.05 to 4.32 ± 0.12 g/l. RO30 isolate (from Romi cheese) was chosen, due to its ability to produce the highest EPS yield (4.23 ± 0.12 g/l). The 16S rDNA sequencing showed it belonged to the Lactiplantibacillus plantarum group and was further identified as L. plantarum RO30 with accession number OL757866. It displayed well in vitro probiotic properties. REPS was extracted and characterized. The existence of COO−, OH and amide groups corresponding to typical EPSs was confirmed via FTIR. It was constituted of glucuronic acid, mannose, glucose, and arabinose in a molar ratio of 2.2:0.1:0.5:0.1, respectively. The average molecular weight was 4.96 × 104 g/mol. In vitro antioxidant assays showed that the REPS possesses a DPPH radical scavenging ability of 43.60% at 5 mg/ml, reducing power of 1.108 at 10 mg/ml, and iron chelation activity of 72.49% and 89.78% at 5 mg/ml and 10 mg/ml, respectively. The healing efficacy of REPS on burn wound models in albino Wistar rats showed that REPS at 0.5% (w/w) concentration stimulated the process of healing in burn areas. The results suggested that REPS might be useful as a burn wound healing agent.
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Affiliation(s)
- Eman A. Elmansy
- Microbial Biotechnology Department, Institute of Biotechnology Research, National Research Centre, El-Tahreer Street, Dokki, Cairo, 12622, Egypt
| | - Ebtsam M. Elkady
- Microbial Biotechnology Department, Institute of Biotechnology Research, National Research Centre, El-Tahreer Street, Dokki, Cairo, 12622, Egypt
| | - Mohsen S. Asker
- Microbial Biotechnology Department, Institute of Biotechnology Research, National Research Centre, El-Tahreer Street, Dokki, Cairo, 12622, Egypt
| | - Amr M. Abdou
- Department of Microbiology and Immunology, National Research Centre, El-Tahreer Street, Dokki, Cairo, 12622 Egypt
| | - Nagwa A. Abdallah
- Microbiology Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Shaimaa K. Amer
- Microbiology Department, Faculty of Science, Ain Shams University, Cairo, Egypt
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Nguyen PT, Nguyen TT, Nguyen TTU, Hoang QK, Nguyen HT. Improve the viability and extracellular polymeric substances bioactivity of Lactiplantibacillus plantarum VAL6 using the environmental adaptation. FOOD AND BIOPRODUCTS PROCESSING 2022. [DOI: 10.1016/j.fbp.2021.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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32
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Recent Advances in the Production of Exopolysaccharide (EPS) from Lactobacillus spp. and Its Application in the Food Industry: A Review. SUSTAINABILITY 2021. [DOI: 10.3390/su132212429] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Exopolysaccharide (EPS) show remarkable properties in various food applications. In this review paper, EPS composition, structural characterization, biosynthesis pathways, and recent advancements in the context of application of EPS-producing Lactobacillus spp. in different food industries are discussed. Various chemical and physical properties of Lactobacillus EPS, such as the structural, rheological, and shelf-life enhancement of different food products, are mentioned. Moreover, EPSs play a characteristic role in starter culture techniques, yogurt production, immunomodulation, and potential prebiotics. It has been seen that the wastes of fermented and non-fermented products are used as biological food for EPS extraction. The main capabilities of probiotics are the use of EPS for technological properties such as texture and flavor enhancement, juiciness, and water holding capacities of specific food products. For these reasons, EPSs are used in functional and fermented food products to enhance the healthy activity of the human digestive system as well as for the benefit of the food industry to lower product damage and increase consumer demand. Additionally, some pseudocereals such as amaranth and quinoa that produce EPS also play an important role in improving the organoleptic properties of food-grade products. In conclusion, more attention should be given to sustainable extraction techniques of LAB EPS to enhance structural and functional use in the developmental process of food products to meet consumer preferences.
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Viability, Storage Stabilityand In Vitro Gastrointestinal Tolerance of Lactiplantibacillus plantarum Grown in Model Sugar Systems with Inulin and Fructooligosaccharide Supplementation. FERMENTATION 2021. [DOI: 10.3390/fermentation7040259] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
This study aims to investigate the effects of inulin and fructooligosaccharides (FOS) supplementation on the viability, storage stability, and in vitro gastrointestinal tolerance of Lactiplantibacillus plantarum in different sugar systems using 24 h growth and 10 days survival studies at 37 °C, inulin, and FOS (0%, 0.5%, 1%, 2%, 3% and 4%) supplementation in 2%, 3%, and 4% glucose, fructose, lactose, and sucrose systems. Based on the highest percentage increase in growth index, sucrose and lactose were more suitable sugar substrates for inulin and FOS supplementation. In survival studies, based on cell viability, inulin supplementation showed a better protective effect than FOS in 3% and 4% sucrose and lactose systems. Four selected sucrose and lactose systems supplemented with inulin and FOS were used in a 12-week storage stability study at 4 °C. Inulin (3%, 4%) and FOS (2%, 4%) supplementation in sucrose and lactose systems greatly enhanced the refrigerated storage stability of L. plantarum. In the gastrointestinal tolerance study, an increase in the bacterial survival rate (%) showed that the supplementation of FOS in lactose and sucrose systems improved the storage viability of L. plantarum. Both inulin and FOS supplementation in sucrose and lactose systems improved the hydrophobicity, auto-aggregation, co-aggregation ability of L. plantarum with Escherichia coli and Enterococcus faecalis.
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Brdarić E, Soković Bajić S, Đokić J, Đurđić S, Ruas-Madiedo P, Stevanović M, Tolinački M, Dinić M, Mutić J, Golić N, Živković M. Protective Effect of an Exopolysaccharide Produced by Lactiplantibacillus plantarum BGAN8 Against Cadmium-Induced Toxicity in Caco-2 Cells. Front Microbiol 2021; 12:759378. [PMID: 34790183 PMCID: PMC8591446 DOI: 10.3389/fmicb.2021.759378] [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: 08/16/2021] [Accepted: 10/01/2021] [Indexed: 01/13/2023] Open
Abstract
Cadmium (Cd) ranks seventh on the list of most significant potential threats to human health based on its suspected toxicity and the possibility of exposure to it. It has been reported that some bacterial exopolysaccharides (EPSs) have the ability to bind heavy metal ions. We therefore investigated the capacity of eight EPS-producing lactobacilli to adsorb Cd in the present study, and Lactiplantibacillus plantarum BGAN8 was chosen as the best candidate. In addition, we demonstrate that an EPS derived from BGAN8 (EPS-AN8) exhibits a high Cd-binding capacity and prevents Cd-mediated toxicity in intestinal epithelial Caco-2 cells. Simultaneous use of EPS-AN8 with Cd treatment prevents inflammation, disruption of tight-junction proteins, and oxidative stress. Our results indicate that the EPS in question has a strong potential to be used as a postbiotic in combatting the adverse effects of Cd. Moreover, we show that higher concentrations of EPS-AN8 can alleviate Cd-induced cell damage.
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Affiliation(s)
- Emilija Brdarić
- Group for Probiotics and Microbiota-Host Interaction, Laboratory for Molecular Microbiology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Svetlana Soković Bajić
- Group for Probiotics and Microbiota-Host Interaction, Laboratory for Molecular Microbiology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Jelena Đokić
- Group for Probiotics and Microbiota-Host Interaction, Laboratory for Molecular Microbiology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Slađana Đurđić
- Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
| | - Patricia Ruas-Madiedo
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias - Consejo Superior de Investigaciones Científicas (IPLA-CSIC), Asturias, Spain
| | - Magdalena Stevanović
- Institute of Technical Sciences, Serbian Academy of Sciences and Arts, Belgrade, Serbia
| | - Maja Tolinački
- Group for Probiotics and Microbiota-Host Interaction, Laboratory for Molecular Microbiology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Miroslav Dinić
- Group for Probiotics and Microbiota-Host Interaction, Laboratory for Molecular Microbiology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Jelena Mutić
- Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
| | - Nataša Golić
- Group for Probiotics and Microbiota-Host Interaction, Laboratory for Molecular Microbiology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Milica Živković
- Group for Probiotics and Microbiota-Host Interaction, Laboratory for Molecular Microbiology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
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Akhtach S, Tabia Z, Bricha M, Belkhou R, Mabrouk KE. Investigation on exopolysaccharide production by Lacticaseibacillus rhamnosus P14 isolated from Moroccan raw cow's milk. J Food Sci 2021; 86:4840-4850. [PMID: 34642967 DOI: 10.1111/1750-3841.15941] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 09/06/2021] [Accepted: 09/09/2021] [Indexed: 11/29/2022]
Abstract
Twenty-four strains were isolated from 50 samples of raw cow's milk originated from different regions of Morocco. After different screening methods, one strain was selected as the highest exopolysaccharide (EPS)-producing isolate and was identified by 16S rDNA sequencing as Lacticaseibacillus rhamnosus P14. Moreover, the EPS-producing ability, bacterial growth, and pH of the medium were monitored. The optimization of culture conditions indicated that the high yield of EPS was 685.14 mg/L obtained at 42°C, with lactose as a carbon source. The characterization study showed that the purified EPS consisted of one main fraction that contained 97.67% of carbohydrates. Furthermore, the EPS was identified as a homogeneous polysaccharide, mainly composed of glucose. These results demonstrated the high EPS production ability of the selected L. rhamnosus P14, representing a promising candidate to improve the textural and sensory properties of fermented food.
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Affiliation(s)
- Sihame Akhtach
- Euromed Research Center, Euromed University of Fez, Eco-Campus, Fez, Morocco.,Laboratory of Biotechnology, Environment, Agri-Food, and Health (LBEAS), High School of Technology, Sidi Mohamed Ben Abdallah University, Atlas Fez, Morocco
| | - Zakaria Tabia
- Euromed Research Center, Euromed University of Fez, Eco-Campus, Fez, Morocco
| | - Meriem Bricha
- Euromed Research Center, Euromed University of Fez, Eco-Campus, Fez, Morocco
| | - Rajae Belkhou
- Laboratory of Biotechnology, Environment, Agri-Food, and Health (LBEAS), High School of Technology, Sidi Mohamed Ben Abdallah University, Atlas Fez, Morocco
| | - Khalil El Mabrouk
- Euromed Research Center, Euromed University of Fez, Eco-Campus, Fez, Morocco
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Bhawal S, Kumari A, Kapila S, Kapila R. Physicochemical Characteristics of Novel Cell-Bound Exopolysaccharide from Probiotic Limosilactobacillus fermentum (MTCC 5898) and Its Relation to Antioxidative Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:10338-10349. [PMID: 34455781 DOI: 10.1021/acs.jafc.1c03182] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This study investigated the physicochemical characteristics and antioxidative role of novel acidic cell-bound exopolysaccharide (EPS-b) from probiotic Limosilactobacillus fermentum (MTCC 5898) and gained an insight into the structure-function relationship. The physicochemical analysis of EPS-b isolated by ultrasonication method revealed a heteropolysaccharide molecule with an average MW of 96.97 kDa composed of glucose and galactose subunits present in random-coiled conformation. Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) analyses further supported the observation and indicated the presence of α-(1 → 6) linkages. The analyses implicated the significant influence of structural features on the antioxidative activity of EPS-b by showing remarkable ABTS scavenging, reducing, and metal chelating potential with increasing concentration. Besides, the EPS-b by its scavenging potential also maintained the oxidative balance in the Caco-2 cells under oxidative stress and preserved the cellular antioxidative defense system (CAT, GPx, SOD, HO1, and GCLC) at the basal level.
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Affiliation(s)
- Shalaka Bhawal
- Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal 132001, India
| | - Ankita Kumari
- Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal 132001, India
| | - Suman Kapila
- Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal 132001, India
| | - Rajeev Kapila
- Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal 132001, India
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Barzegar H, Alizadeh Behbahani B, Falah F. Safety, probiotic properties, antimicrobial activity, and technological performance of Lactobacillus strains isolated from Iranian raw milk cheeses. Food Sci Nutr 2021; 9:4094-4107. [PMID: 34401061 PMCID: PMC8358388 DOI: 10.1002/fsn3.2365] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 04/19/2021] [Accepted: 05/15/2021] [Indexed: 12/18/2022] Open
Abstract
The objective of this study was to investigate probiotic, antimicrobial, technological and safety properties of lactobacillus strains isolated from local Iranian cheese made from raw milk. Six different samples were prepared, after serial dilution, culture was performed on MRS culture medium. The gram-positive and catalase-negative lactobacillus strains were subjected to grouping and identifying using biochemical tests, carbohydrates fermentation profiles, and 16S rDNA analysis. The results of sequence analysis showed the Lactobacillus spp. belonged to Lactobacillus brevis, Lactobacillus acidophilus, Lactobacillus plantarum, and Lactobacillus casei. After 3 hr incubation at pH=2, 3-6 log units of strains decreased which Lactobacillus acidophilus (B14) and Lactobacillus brevis (B2) showed highest resistance to low pH as well as simulated GIT juices. The highest and lowest hydrophobicity degree was belonged to L. acidophilus (B14) (65.9%) and L. casei (B22) (25.6%), respectively. Also, the highest auto-aggregation and coaggregation were observed in L. acidophilus (B14) (51.3%) and L. plantarum (B20) (43.6%). The adhered percentage of strains varied from 2.5% to 14.6%. L. plantarum (B20) showed highest proteolytic activity followed by L. acidophilus (B14). Also, the highest autolytic activity belonged to L. acidophilus (B14). All of the strains showed low acidifying potential, except for L. acidophilus (B17) which decreased 2.05 unit of pH after 24 hr. The isolates did not show lipolytic activity as well as biogenic amines production (except L. brevis B3). All of the strains were sensitive to chloramphenicol and erythromycin except L. acidophilus (B15) and L. casei (B22). All strains showed no hemolysis activity which make them safe for consumption. Based on the obtained results, L. acidophilus (B14) presented the best probiotic and technological characteristics and is proposed for using as coculture in the dairy industrial.
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Affiliation(s)
- Hassan Barzegar
- Department of Food Science and TechnologyFaculty of Animal Science and Food TechnologyAgricultural Sciences and Natural Resources University of KhuzestanMollasaniIran
| | - Behrooz Alizadeh Behbahani
- Department of Food Science and TechnologyFaculty of Animal Science and Food TechnologyAgricultural Sciences and Natural Resources University of KhuzestanMollasaniIran
| | - Fereshteh Falah
- Department of Food Science and TechnologyFaculty of AgricultureFerdowsi University of MashhadMashhadIran
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Wu Q, Zhang C, Wa Y, Qu H, Gu R, Chen D, Song Z, Chen X. Correlation between exopolysaccharide biosynthesis and gastrointestinal tolerance of Lactiplantibacillus plantarum. J Appl Microbiol 2021; 132:584-591. [PMID: 34261198 DOI: 10.1111/jam.15213] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/05/2021] [Accepted: 07/12/2021] [Indexed: 11/28/2022]
Abstract
AIM This study aimed to investigate the correlation between the level of exopolysaccharide (EPS) biosynthesis and gastrointestinal tolerance of 12 Lactiplantibacillus plantarum strains. METHODS AND RESULTS In this study, the EPS production and survival rate of 12 strains of L. plantarum under gastrointestinal stress were determined. Results showed that the EPS biosynthesis level of L. plantarum in semi-defined medium ranged from 9.84 to 26.05 mg/L. The survival rates of all strains in simulated gastric juice at pH 3.0 ranged from 43.52% to 112.73%. Among them, eight strains were higher than 90%, while only one strain was lower than 50%. The survival rates of all strains in simulated intestinal juice ranged from 50.36% to 125.39%, among which eight strains were higher than 80%. The survival rates of all strains under 0.1% bile salt stress ranged from 3.39% to 109.34%, among which four strains were higher than 80% and three strains were lower than 60%. Besides, the survival rates of all strains under 0.5% bile salt stress ranged from 0.42% to 95.34%. The results indicated that the 12 L. plantarum strains had good tolerance to simulated gastric juice at pH 3.0, simulated intestinal juice and 0.1% bile salt. Notably, it was observed that the survival rates of L. plantarum strains under simulated gastric juice at pH 3.0 and simulated intestinal juice were significantly positively correlated with EPS biosynthesis (p < 0.01). CONCLUSION The yield of EPS of L. plantarum was related to simulated gastric juice and simulated intestinal juice environment. SIGNIFICANCE AND IMPACT OF STUDY It was speculated that the production of EPS may be one of the strategies for L. plantarum to adapt to the part of gastrointestinal environment. In the future, we could analyse the protection mechanism of EPS from the gene level.
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Affiliation(s)
- Qingqing Wu
- College of Food Science and Technology, Yangzhou University, Yangzhou, China.,Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, China
| | - Chenchen Zhang
- College of Food Science and Technology, Yangzhou University, Yangzhou, China.,Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, China
| | - Yunchao Wa
- College of Food Science and Technology, Yangzhou University, Yangzhou, China.,Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, China
| | - Hengxian Qu
- College of Food Science and Technology, Yangzhou University, Yangzhou, China.,Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, China
| | - Ruixia Gu
- College of Food Science and Technology, Yangzhou University, Yangzhou, China.,Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, China
| | - Dawei Chen
- College of Food Science and Technology, Yangzhou University, Yangzhou, China.,Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, China
| | - Zhixin Song
- College of Food Science and Technology, Yangzhou University, Yangzhou, China.,Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, China
| | - Xia Chen
- College of Food Science and Technology, Yangzhou University, Yangzhou, China.,Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou, China
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Ali S, Xie L. Plant Growth Promoting and Stress Mitigating Abilities of Soil Born Microorganisms. Recent Pat Food Nutr Agric 2021; 11:96-104. [PMID: 31113355 DOI: 10.2174/2212798410666190515115548] [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: 09/07/2018] [Revised: 10/29/2018] [Accepted: 02/16/2019] [Indexed: 12/16/2022]
Abstract
Abiotic stresses affect the plant growth in different ways and at different developmental stages that reduce the crop yields. The increasing world population continually demands more crop yields; therefore it is important to use low-cost technologies against abiotic stresses to increase crop productivity. Soil microorganisms survive in the soil associated with plants in extreme condition. It was demonstrated that these beneficial microorganisms promote plant growth and development under various stresses. The soil microbes interact with the plant through rhizospheric or endophytic association and promote the plant growth through different processes such as nutrients mobilization, disease suppression, and hormone secretions. The microorganisms colonized in the rhizospheric region and imparted the abiotic stress tolerance by producing 1-aminocyclopropane-1- carboxylate (ACC) deaminase, antioxidant, and volatile compounds, inducing the accumulation of osmolytes, production of exopolysaccharide, upregulation or downregulation of stress genes, phytohormones and change the root morphology. A large number of these rhizosphere microorganisms are now patented. In the present review, an attempt was made to throw light on the mechanism of micro-organism that operates during abiotic stresses and promotes plant survival and productivity.
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Affiliation(s)
- Shahid Ali
- College of Life Science, Northeast Forestry University, Harbin, Heilongjiang 150040, China
| | - Linan Xie
- College of Life Science, Northeast Forestry University, Harbin, Heilongjiang 150040, China
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Zhang C, Zhao Y, Jiang J, Yu L, Tian F, Zhao J, Zhang H, Chen W, Zhai Q. Identification of the key characteristics of Bifidobacterium longum strains for the alleviation of ulcerative colitis. Food Funct 2021; 12:3476-3492. [PMID: 33900330 DOI: 10.1039/d1fo00017a] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Bifidobacterium longum (B. longum) species are widely used to prevent and treat ulcerative colitis (UC). In this study, phylogenetic and pan-genomic characterization of 122 B. longum strains was performed on the basis of 936 core genes; among these, four strains from different branches of the phylogenetic tree were selected for an evaluation of anti-inflammatory and immune modulatory activities in a DSS-induced colitis mouse model. Among the tested B. longum strains (B. longum FBJ20M1, B. longum FGDLZ8M1, B. longum FGSZY16M3, and B. longum FJSWXJ2M1), B. longum FGDLZ8M1 was found to most effectively alleviate colitis by reducing the expression of pro-inflammatory cytokines, restoring the colon length, and maintaining the mucosal integrity. The anti-inflammatory mechanisms of B. longum FGDLZ8M1 were related to the inhibition of NF-κB signaling. Genomic analysis indicated that these protective effects of B. longum FGDLZ8M1 may be related to specific genes associated with carbohydrate transport and metabolism and defense mechanisms (e.g., tolerance to bile salts and acids). Correlation analysis indicated that gastrointestinal transit tolerance was the most strongly associated factor. Our findings may contribute to the rapid screening of lactic acid bacterial strains with UC-alleviating effects.
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Affiliation(s)
- Chengcheng Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yan Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jinchi Jiang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Leilei Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China and National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu 214122, China and Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi, Jiangsu 214122, China and (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou 225004, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China and National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu 214122, China and Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi, Jiangsu 214122, China
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
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Probiotic Properties and Potentiality of Lactiplantibacillus plantarum Strains for the Biological Control of Chalkbrood Disease. J Fungi (Basel) 2021; 7:jof7050379. [PMID: 34066127 PMCID: PMC8151994 DOI: 10.3390/jof7050379] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/08/2021] [Accepted: 05/09/2021] [Indexed: 01/22/2023] Open
Abstract
Ascosphaera apis is an entomopathogenic fungus that affects honeybees. In stressful conditions, this fungus (due not only to its presence, but also to the combination of other biotic and abiotic stressors) can cause chalkbrood disease. In recent years, there has been increasing attention paid towards the use of lactic acid bacteria (LAB) in the honeybees' diets to improve their health, productivity and ability to resist infections by pathogenic microorganisms. The screening of 22 strains of Lactiplantibacillus plantarum, isolated from the gastrointestinal tracts of honeybees and beebread, led to the selection of five strains possessing high antagonistic activity against A. apis. This study focused on the antifungal activity of these five strains against A. apis DSM 3116 and DSM 3117 using different matrices: cell lysate, broth culture, cell-free supernatant and cell pellet. In addition, some functional properties and the antioxidant activity of the five L. plantarum strains were evaluated. All five strains exhibited high antagonistic activity against A. apis, good surface cellular properties (extracellular polysaccharide (EPS) production and biofilm formation) and antioxidant activity. Although preliminary, these results are encouraging, and in future investigations, the effectiveness of these bacteria as probiotics in honeybee nutrition will be tested in vivo in the context of an eco-friendly strategy for the biological control of chalkbrood disease.
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Butorac K, Novak J, Bellich B, Terán LC, Banić M, Leboš Pavunc A, Zjalić S, Cescutti P, Šušković J, Kos B. Lyophilized alginate-based microspheres containing Lactobacillus fermentum D12, an exopolysaccharides producer, contribute to the strain's functionality in vitro. Microb Cell Fact 2021; 20:85. [PMID: 33865380 PMCID: PMC8052780 DOI: 10.1186/s12934-021-01575-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 04/02/2021] [Indexed: 11/10/2022] Open
Abstract
Lactobacillus (Limosilactobacillus) fermentum D12 is an exopolysaccharide (EPS) producing strain whose genome contains a putative eps operon. Whole-genome analysis of D12 was performed to disclose the essential genes correlated with activation of precursor molecules, elongation and export of the polysaccharide chain, and regulation of EPS synthesis. These included the genes required for EPS biosynthesis such as epsA, B, C, D and E, also gt, wzx, and wzy and those involved in the activation of the precursor molecules galE, galT and galU. Both the biosynthesis and export mechanism of EPS were proposed based on functional annotation. When grown on MRS broth with an additional 2% w/v glucose, L. fermentum D12 secreted up to 200 mg/L of a mixture of EPSs, whose porous structure was visualized by scanning electron microscopy (SEM). Structural information obtained by 1HNMR spectroscopy together with composition and linkage analyses, suggested the presence of at least two different EPSs, a branched heteropolysaccharide containing t-Glcp and 2,6-linked Galf, and glycogen. Since recent reports showed that polysaccharides facilitate the probiotic-host interactions, we at first sought to evaluate the functional potential of L. fermentum D12. Strain D12 survived simulated gastrointestinal tract (GIT) conditions, exhibited antibacterial activity against enteropathogenic bacteria, adhered to Caco-2 cells in vitro, and as such showed potential for in vivo functionality. The EPS crude extract positively influenced D12 strain capacity to survive during freeze-drying and to adhere to extracellular matrix (ECM) proteins but did not interfere Caco-2 and mucin adherence when added at concentrations of 0.2, 0.5, and 1.0 mg/mL. Since the viable bacterial count of free D12 cells was 3 logarithmic units lower after the exposure to simulated GIT conditions than the initial count, the bacterial cells had been loaded into alginate for viability improvement. Microspheres of D12 cells, which were previously analyzed at SEM, significantly influenced their survival during freeze-drying and in simulated GIT conditions. Furthermore, the addition of the prebiotic substrates mannitol and lactulose improved the viability of L. fermentum D12 in freeze-dried alginate microspheres during 1-year storage at 4 °C compared to the control.
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Affiliation(s)
- Katarina Butorac
- Laboratory of Antibiotic, Enzyme, Probiotic and Starter Culture Technologies, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
| | - Jasna Novak
- Laboratory of Antibiotic, Enzyme, Probiotic and Starter Culture Technologies, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia.
| | - Barbara Bellich
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 1, Bdg. C11, 34127, Trieste, Italy
| | - Lucrecia C Terán
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 1, Bdg. C11, 34127, Trieste, Italy
| | - Martina Banić
- Laboratory of Antibiotic, Enzyme, Probiotic and Starter Culture Technologies, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
| | - Andreja Leboš Pavunc
- Laboratory of Antibiotic, Enzyme, Probiotic and Starter Culture Technologies, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
| | - Slaven Zjalić
- Department of Ecology, Agronomy and Aquaculture, University of Zadar, Trg Kneza Višeslava 9, 23000, Zadar, Croatia
| | - Paola Cescutti
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 1, Bdg. C11, 34127, Trieste, Italy
| | - Jagoda Šušković
- Laboratory of Antibiotic, Enzyme, Probiotic and Starter Culture Technologies, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
| | - Blaženka Kos
- Laboratory of Antibiotic, Enzyme, Probiotic and Starter Culture Technologies, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
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Velasco L, Weiss J, Loeffler M. Influence of microbial in-situ heteropolysaccharide production on textural properties of raw fermented sausages (salami). JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2021; 58:562-570. [PMID: 33568849 DOI: 10.1007/s13197-020-04568-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 05/23/2020] [Accepted: 06/10/2020] [Indexed: 11/26/2022]
Abstract
The purpose of the study was to investigate the influence of a heteropolysacchride (HePS)-forming lactic acid bacteria (LAB) on the quality attributes of raw fermented sausages. Therefore, salamis with the HePS-producing strain Lactobacillus plantarum TMW 1.1478 or the non-EPS-producing strain Lactobacillus sakei TMW 1.2037 (control) were manufactured using two different inoculation concentrations: more precisely, 107 CFU/g (typical starter culture concentration) or 109 CFU/g. Growth behavior, aw and pH development were recorded until a weight loss of 31% was reached and in-situ-formed EPS detected using confocal laser scanning microscopy. Moreover, the influence of the HePS formed on texture (texture profile analysis; TPA) and sensory attributes (26 panelists, ranking test) was investigated. The final products containing L. plantarum TMW 1.1478 were found to be significantly softer (p < 0.05) than the respective control samples, an effect that was even more pronounced at the higher inoculation level of 109 CFU/g. The semi-quantitative data interpretation of the CLSM pictures revealed that the EPS were predominantly formed during the first 72 h of fermentation at 24 °C until the final pH of 4.95 ± 0.05 was reached (stationary phase). The sensory evaluation (consistency) was in accordance with the TPA results and taste was not negatively influenced by the HePS-forming strain. Results clearly indicate that EPS-producing LAB can have a negative influence on the quality of raw fermented sausages. However, these strains (in the present case L. plantarum TMW 1.1478) might be interesting for application in the field of spreadable raw sausage manufacturing.
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Affiliation(s)
- Lina Velasco
- Department of Food Physics and Meat Science, Institute of Food Science and Biotechnology, University of Hohenheim, Garbenstrasse 21/25, 70599 Stuttgart, Germany
| | - Jochen Weiss
- Department of Food Physics and Meat Science, Institute of Food Science and Biotechnology, University of Hohenheim, Garbenstrasse 21/25, 70599 Stuttgart, Germany
| | - Myriam Loeffler
- Department of Food Physics and Meat Science, Institute of Food Science and Biotechnology, University of Hohenheim, Garbenstrasse 21/25, 70599 Stuttgart, Germany
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44
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Abedfar A, Hosseininezhad M, Sadeghi A, Raeisi M. Comparative survival of exopolysaccharide encapsulated Lactobacillus plantarum and Pediococcus pentosaceus in simulated gastrointenstinal conditions and storage time. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-020-00664-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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45
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Liu Y, Li Y, Yu X, Yu L, Tian F, Zhao J, Zhang H, Zhai Q, Chen W. Physiological Characteristics of Lactobacillus casei Strains and Their Alleviation Effects against Inflammatory Bowel Disease. J Microbiol Biotechnol 2021; 31:92-103. [PMID: 32522964 PMCID: PMC9705699 DOI: 10.4014/jmb.2003.03041] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/18/2020] [Accepted: 05/26/2020] [Indexed: 12/15/2022]
Abstract
Lactobacillus casei, one of the most widely used probiotics, has been reported to alleviate multiple diseases. However, the effects of this species on intestinal diseases are strain-specific. Here, we aimed to screen L. casei strains with inflammatory bowel disease (IBD)-alleviating effects based on in vitro physiological characteristics. Therefore, the physiological characteristics of 29 L. casei strains were determined, including gastrointestinal transit tolerance, oligosaccharide fermentation, HT-29 cell adhesion, generation time, exopolysaccharide production, acetic acid production, and conjugated linoleic acid synthesis. The effects of five candidate strains on mice with induced colitis were also evaluated. The results showed that among all tested L. casei strains, only Lactobacillus casei M2S01 effectively relieved colitis. This strain recovered body weight, restored disease activity index score, and promoted anti-inflammatory cytokine expression. Gut microbiota sequencing showed that L. casei M2S01 restored a healthy gut microbiome composition. The western blotting showed that the alleviating effects of L. casei M2S01 on IBD were related to the inhibition of the NF-κB pathway. A good gastrointestinal tolerance ability may be one of the prerequisites for the IBDalleviating effects of L. casei. Our results verified the efficacy of L. casei in alleviating IBD and lay the foundation for the rapid screening of L. casei strain with IBD-alleviating effects.
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Affiliation(s)
- Yang Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 2422, P. R. China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 141, P.R. China
| | - Yifeng Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 2422, P. R. China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 141, P.R. China
| | - Xinjie Yu
- Hwa Chong Institution (College), 661 Bukit Timah Road, Singapore 26974, Singapore
| | - Leilei Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 2422, P. R. China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 141, P.R. China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 2422, P. R. China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 141, P.R. China,International Joint Research Laboratory for Probiotics at Jiangnan University, Wuxi, Jiangsu 21122, P.R. China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 2422, P. R. China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 141, P.R. China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 2422, P. R. China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 141, P.R. China,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu 214122, P.R. China,Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute, Wuxi Branch, P.R. China,(Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou 225004, P.R. China
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 2422, P. R. China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 141, P.R. China,International Joint Research Laboratory for Probiotics at Jiangnan University, Wuxi, Jiangsu 21122, P.R. China,Corresponding authors Q. Zhai Phone: +86-510-85912155 Fax: +86-510-85912155 E-mail:
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 2422, P. R. China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 141, P.R. China,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu 214122, P.R. China,Beijing Innovation Center of Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 10004, P.R. China
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Nguyen PT, Nguyen TT, Vo TNT, Nguyen TTX, Hoang QK, Nguyen HT. Response of Lactobacillus plantarum VAL6 to challenges of pH and sodium chloride stresses. Sci Rep 2021; 11:1301. [PMID: 33446763 PMCID: PMC7809271 DOI: 10.1038/s41598-020-80634-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 12/17/2020] [Indexed: 12/02/2022] Open
Abstract
To investigate the effect of environmental stresses on the exopolysaccharide biosynthesis, after 24 h of culture at 37 °C with pH 6.8 and without sodium chloride, Lactobacillus plantarum VAL6 was exposed to different stress conditions, including pH (pHs of 3 and 8) and high sodium chloride concentration treatments. The results found that Lactobacillus plantarum VAL6 exposed to stress at pH 3 for 3 h gives the highest exopolysaccharide yield (50.44 g/L) which is 6.4 fold higher than non-stress. Under pH and sodium chloride stresses, the mannose content in exopolysaccharides decreased while the glucose increased in comparison with non-stress condition. The galactose content was highest under stress condition of pH 8 meantime rhamnose content increased sharply when Lactobacillus plantarum VAL6 was stressed at pH 3. The arabinose content in exopolysaccharides was not detected under non-stress condition but it was recorded in great amounts after 3 h of stress at pH 3. In addition, stress of pH 8 triggered the mRNA expression of epsF gene resulting in galactose-rich EPS synthesis. According to our results, the stresses of pH and sodium chloride enhance the production and change the mRNA expression of epsF gene, leading to differences in the monosaccharide composition of exopolysaccharides.
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Affiliation(s)
- Phu-Tho Nguyen
- Graduate University of Sciences and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- An Giang University, Vietnam National University, Ho Chi Minh City, Vietnam
| | | | | | | | - Quoc-Khanh Hoang
- Institute of Tropical Biology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Huu-Thanh Nguyen
- An Giang University, Vietnam National University, Ho Chi Minh City, Vietnam.
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Do TBT, Tran BK, Tran TVT, Le TH, Cnockaert M, Vandamme P, Nguyen THC, Nguyen CC, Hong SH, Kim SY, Van Le Q. Decoding the Capability of Lactobacillus plantarum W1 Isolated from Soybean Whey in Producing an Exopolysaccharide. ACS OMEGA 2020; 5:33387-33394. [PMID: 33403301 PMCID: PMC7774251 DOI: 10.1021/acsomega.0c05256] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 12/07/2020] [Indexed: 06/12/2023]
Abstract
This study aims at producing exopolysaccharides (EPS) from a lactic acid bacterial strain. The soybean whey-isolated Lactobacillus plantarum W1 (EPS-W1), which belongs to genus Lactobacillus, is identified using the phenylalanyl-tRNA sequencing method. Of all the examined strains, R-49778 (as numbered by BCCM/LMG Bacteria Collection, Ghent University, Belgium) showed the highest capability of producing exopolysaccharides. Structural characterization revealed a novel exopolysaccharide consisting of repeating units of →6)-d-Glcp-(1→; →3)-d-Manp-(1→; →3)-d-Glcp-(1→ and a branch of →6)-d-Manp-(1→; →2)-d-Glcp-(1→. This discovery opens up avenues for the production of EPS for food industries, functional foods, and biomedical applications.
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Affiliation(s)
- Thi Bich Thuy Do
- Faculty
of Engineering and Food Technology, Hue University of Agriculture
and Forestry, Hue University, Thua Thien Hue 530000, Vietnam
| | - Bao Khanh Tran
- Faculty
of Engineering and Food Technology, Hue University of Agriculture
and Forestry, Hue University, Thua Thien Hue 530000, Vietnam
| | - Thi Van Thi Tran
- Hue
University of Sciences, Hue University, Thua Thien Hue 530000, Vietnam
| | - Trung Hieu Le
- Hue
University of Sciences, Hue University, Thua Thien Hue 530000, Vietnam
| | - Margo Cnockaert
- Laboratory
of Microbiology, Department of Biochemistry and Microbiology, Ghent University, K.L. Ledeganckstraat 35, B-9000 Ghent, Belgium
| | - Peter Vandamme
- Laboratory
of Microbiology, Department of Biochemistry and Microbiology, Ghent University, K.L. Ledeganckstraat 35, B-9000 Ghent, Belgium
| | - Thi Hong Chuong Nguyen
- Institute
of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
- Faculty
of Environmental and Chemical Engineering, Duy Tan University, Da Nang 550000, Vietnam
| | - Chinh Chien Nguyen
- Institute
of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
- Faculty
of Environmental and Chemical Engineering, Duy Tan University, Da Nang 550000, Vietnam
| | - Sung Hyun Hong
- Department
of Materials Science and Engineering, Institute of Green Manufacturing
Technology, Korea University, 145, Anam-ro Seongbuk-gu, Seoul 02841, Republic
of Korea
| | - Soo Young Kim
- Department
of Materials Science and Engineering, Institute of Green Manufacturing
Technology, Korea University, 145, Anam-ro Seongbuk-gu, Seoul 02841, Republic
of Korea
| | - Quyet Van Le
- Institute
of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
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48
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Loeffler M, Hilbig J, Velasco L, Weiss J. Usage of in situ exopolysaccharide-forming lactic acid bacteria in food production: Meat products-A new field of application? Compr Rev Food Sci Food Saf 2020; 19:2932-2954. [PMID: 33337046 DOI: 10.1111/1541-4337.12615] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 07/02/2020] [Accepted: 07/15/2020] [Indexed: 12/01/2022]
Abstract
In the meat industry, hydrocolloids and phosphates are used to improve the quality attributes of meat products. However, latest research results revealed that the usage of exopolysaccharide (EPS)-forming lactic acid bacteria (LAB), which are able to produce EPS in situ during processing could be an interesting alternative. The current review aims to give a better understanding of bacterial EPS production in food matrices with a special focus on meat products. This includes an introduction to microbial EPS production (homopolysaccharides as well as heteropolysaccharides) and an overview of parameters affecting EPS formation and yield depending on LAB used. This is followed by a summary of methods to detect and characterize EPS to facilitate a rational selection of starter cultures and fermentation conditions based on desired structure-function relationships in different food matrices. The mechanism of action of in situ generated EPS is then highlighted with an emphasis on different meat products. In the process, this review also highlights food additives currently used in meat production that could in the future be replaced by in situ EPS-forming LAB.
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Affiliation(s)
- Myriam Loeffler
- Department of Food Material Science, Institute of Food Science and Biotechnology, University of Hohenheim, Garbenstrasse 21/25, Stuttgart, Germany
| | - Jonas Hilbig
- Department of Food Material Science, Institute of Food Science and Biotechnology, University of Hohenheim, Garbenstrasse 21/25, Stuttgart, Germany
| | - Lina Velasco
- Department of Food Material Science, Institute of Food Science and Biotechnology, University of Hohenheim, Garbenstrasse 21/25, Stuttgart, Germany
| | - Jochen Weiss
- Department of Food Material Science, Institute of Food Science and Biotechnology, University of Hohenheim, Garbenstrasse 21/25, Stuttgart, Germany
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49
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Nguyen PT, Nguyen TT, Bui DC, Hong PT, Hoang QK, Nguyen HT. Exopolysaccharide production by lactic acid bacteria: the manipulation of environmental stresses for industrial applications. AIMS Microbiol 2020; 6:451-469. [PMID: 33364538 PMCID: PMC7755584 DOI: 10.3934/microbiol.2020027] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 11/12/2020] [Indexed: 02/06/2023] Open
Abstract
Exopolysaccharides (EPSs) are biological polymers secreted by microorganisms including Lactic acid bacteria (LAB) to cope with harsh environmental conditions. EPSs are one of the main components involved in the formation of extracellular biofilm matrix to protect microorganisms from adverse factors such as temperature, pH, antibiotics, host immune defenses, etc.. In this review, we discuss EPS biosynthesis; the role of EPSs in LAB stress tolerance; the impact of environmental stresses on EPS production and on the expression of genes involved in EPS synthesis. The evaluation results indicated that environmental stresses can alter EPS biosynthesis in LAB. For further studies, environmental stresses may be used to generate a new EPS type with high biological activity for industrial applications.
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Affiliation(s)
- Phu-Tho Nguyen
- Graduate University of Sciences and Technology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
- Department of Biotechnology, An Giang University, An Giang, Vietnam
- Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Tho-Thi Nguyen
- Ho Chi Minh City University of Technology (HUTECH), Ho Chi Minh City, Vietnam
| | - Duc-Cuong Bui
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Phuoc-Toan Hong
- LAVI's Institute for Agricultural Science and Plant Breeding, Ho Chi Minh City, Vietnam
| | - Quoc-Khanh Hoang
- Institute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Huu-Thanh Nguyen
- Department of Biotechnology, An Giang University, An Giang, Vietnam
- Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
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50
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Elichiry-Ortiz P, Maes P, Weidmann S, Champion D, Coelho C. Analytical combinations to evaluate the macromolecular composition of extracellular substances (ECS) from Lactobacillus plantarum cell culture media. Anal Bioanal Chem 2020; 413:519-531. [PMID: 33155130 DOI: 10.1007/s00216-020-03022-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/06/2020] [Accepted: 10/21/2020] [Indexed: 11/28/2022]
Abstract
Sugar-enriched media are used to produce extracellular substances (ECS) by Lactobacillus plantarum WCSF1, with a focus on growing stages and carbon source substrates. Combination of size exclusion chromatography and ATR-FTIR spectroscopy provides physicochemical patterns of bulk ECS produced along culture growing time. Secreted biopolymers present polydisperse and high molecular weight distributions, with significant amounts of carbohydrates and proteins. Results, supported by a multivariate statistical analysis, enable to differentiate the macromolecular content of bacterial ECS along the growing stages regardless of the growing media, highlighting a higher production of proteinaceous materials compared to polysaccharides. At the end of the exponential phase, common exoproteins were present in all the tested sugar-enriched media such as transglycosylases between 20 and 35 kDa, a muropeptidase at 36.9 kDa and a cell wall hydrolase. Additionally, L. plantarum WCFS1 secretes ECS with a greater diversity of proteins, when growing in the sucrose-enriched media. Graphical abstract.
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Affiliation(s)
- Peio Elichiry-Ortiz
- University of Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR A 02.102, F-21000, Dijon, France
| | - Pauline Maes
- Clinical Innovation Proteomic Platform - CLIPP, 15, Bd Maréchal de Lattre de Tassigny, Bat. Medecine B3, BP37013, 21070, Dijon, France
| | - Stéphanie Weidmann
- University of Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR A 02.102, F-21000, Dijon, France
| | - Dominique Champion
- University of Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR A 02.102, F-21000, Dijon, France
| | - Christian Coelho
- University of Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR A 02.102, F-21000, Dijon, France.
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