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Michielsen S, Vercelli GT, Cordero OX, Bachmann H. Spatially structured microbial consortia and their role in food fermentations. Curr Opin Biotechnol 2024; 87:103102. [PMID: 38461750 DOI: 10.1016/j.copbio.2024.103102] [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: 01/13/2024] [Revised: 02/14/2024] [Accepted: 02/14/2024] [Indexed: 03/12/2024]
Abstract
Microbial consortia are important for the fermentation of foods. They bring combined functionalities to the fermented product, but stability and product consistency of fermentations with complex consortia can be hard to control. Some of these consortia, such as water- and milk-kefir and kombucha, grow as multispecies aggregates or biofilms, in which micro-organisms taking part in a fermentation cascade are spatially organized. The spatial organization of micro-organisms in these aggregates can impact what metabolic interactions are realized in the consortia, ultimately affecting the growth dynamics and evolution of microbes. A better understanding of such spatially structured communities is of interest from the perspective of microbial ecology and biotechnology, as multispecies aggregates can be used to valorize energy-rich substrates, such as plant-based substrates or side streams from the food industry.
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Affiliation(s)
- Sabine Michielsen
- Systems Biology Lab, A-LIFE/AIMMS, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081HV Amsterdam, the Netherlands
| | - Gabriel T Vercelli
- Department of Civil and Environmental Engineering, 15 Vassar St, Cambridge, MA 02139, USA
| | - Otto X Cordero
- Department of Civil and Environmental Engineering, 15 Vassar St, Cambridge, MA 02139, USA
| | - Herwig Bachmann
- Systems Biology Lab, A-LIFE/AIMMS, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081HV Amsterdam, the Netherlands; Microbiology Department, NIZO Food Research, Ede, the Netherlands.
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2
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Ernst L, Offermann H, Werner A, Wefers D. Comprehensive structural characterization of water-soluble and water-insoluble homoexopolysaccharides from seven lactic acid bacteria. Carbohydr Polym 2024; 323:121417. [PMID: 37940249 DOI: 10.1016/j.carbpol.2023.121417] [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: 07/21/2023] [Revised: 09/01/2023] [Accepted: 09/17/2023] [Indexed: 11/10/2023]
Abstract
Several lactic acid bacteria are able to produce water-soluble and water-insoluble homoexopolysaccharides (HoEPS) from sucrose. In this study, structures of all HoEPS which were fermentatively produced by Leuconostoc mesenteroides subsp. dextranicum NRRL B-1121 and B-1144, Leuconostoc mesenteroides subsp. mesenteroides NRRL B-1149, B-1438 and B-1118, Leuconostoc suionicum DSM 20241, and Liquorilactobacillus satsumensis DSM 16230 were systematically analyzed. Monosaccharide analysis, methylation analysis, NMR spectroscopy, size-exclusion chromatography, and different enzymatic fingerprinting methods were used to obtain detailed structural information. All strains produced water-soluble dextrans and/or levans as well as water-insoluble glucans. Levans showed different degrees of branching and high molecular weights, whereas dextrans had comparable structures and broader size distributions. Fine structures of water-soluble HoEPS were analyzed after endo-dextranase and endo-levanase hydrolysis. Water-insoluble glucans were composed of different portions of 1,3-linkages (5 to 40 %). Hydrolysis with endo-dextranase and endo-mutanase yielded further information on block sizes and varying fine structures. Overall, clear differences between HoEPS yields and structures were observed.
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Affiliation(s)
- Luise Ernst
- Institute of Chemistry, Food Chemistry, Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Hanna Offermann
- Institute of Chemistry, Food Chemistry, Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Annemarie Werner
- Institute of Chemistry, Food Chemistry, Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Daniel Wefers
- Institute of Chemistry, Food Chemistry, Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany.
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3
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Tan LL, Ngiam JJ, Sim ESZ, Conway PL, Loo SCJ. Liquorilactobacillus satsumensis from water kefir yields α-glucan polysaccharides with prebiotic and synbiotic qualities. Carbohydr Polym 2022; 290:119515. [DOI: 10.1016/j.carbpol.2022.119515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/05/2022] [Accepted: 04/19/2022] [Indexed: 11/02/2022]
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Laureys D, Leroy F, Vandamme P, De Vuyst L. Backslopping Time, Rinsing of the Grains During Backslopping, and Incubation Temperature Influence the Water Kefir Fermentation Process. Front Microbiol 2022; 13:871550. [PMID: 35602025 PMCID: PMC9120925 DOI: 10.3389/fmicb.2022.871550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 04/06/2022] [Indexed: 11/13/2022] Open
Abstract
For eight backslopping steps, eight series of water kefir fermentation processes differing in backslopping time and rinsing of the grains during each backslopping step and eight series of fermentation processes differing in incubation temperature and backslopping time were followed. Short backslopping times resulted in high relative abundances of Liquorilactobacillus nagelii and Saccharomyces cerevisiae, intermediate backslopping times in high relative abundances of Leuconostoc pseudomesenteroides, and long backslopping times in high relative abundances of Oenococcus sicerae and Dekkera bruxellensis. When the grains were rinsed during each backslopping step, the relative abundances of Lentilactobacillus hilgardii and Leuc. pseudomesenteroides increased and those of D. bruxellensis and Liql. nagelii decreased. Furthermore, rinsing of the grains during each backslopping step resulted in a slightly higher water kefir grain growth and lower metabolite concentrations. The relative abundances of Liquorilactobacillus mali were highest at 17°C, those of Leuc. pseudomesenteroides at 21 and 25°C, and those of Liql. nagelii at 29°C. With a kinetic modeling approach, the impact of the temperature and rinsing of the grains during the backslopping step on the volumetric production rates of the metabolites was determined.
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Affiliation(s)
- David Laureys
- Research Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Frédéric Leroy
- Research Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
- *Correspondence: Frédéric Leroy
| | - Peter Vandamme
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Luc De Vuyst
- Research Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
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Pendón MD, Bengoa AA, Iraporda C, Medrano M, Garrote GL, Abraham AG. Water kefir: Factors affecting grain growth and health-promoting properties of the fermented beverage. J Appl Microbiol 2021; 133:162-180. [PMID: 34822204 DOI: 10.1111/jam.15385] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 10/18/2021] [Accepted: 11/22/2021] [Indexed: 01/07/2023]
Abstract
Nowadays, the interest in the consumption of healthy foods has increased as well as the homemade preparation of artisanal fermented product. Water kefir is an ancient drink of uncertain origin, which has been passed down from generation to generation and is currently consumed practically all over the world. Considering the recent and extensive updates published on sugary kefir, this work aims to shed light on the scientific works that have been published so far in relation to this complex ecosystem. We focused our review evaluating the factors that affect the beverage microbial and chemical composition that are responsible for the health attribute of water kefir as well as the grain growth. The microbial ecosystem that constitutes the grains and the fermented consumed beverage can vary according to the fermentation conditions (time and temperature) and especially with the use of different substrates (source of sugars, additives as fruits and molasses). In this sense, the populations of microorganisms in the beverage as well as the metabolites that they produce varies and in consequence their health properties. Otherwise, the knowledge of the variables affecting grain growth are also discussed for its relevance in maintenance of the starter biomass as well as the use of dextran for technological application.
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Affiliation(s)
- María Dolores Pendón
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, UNLP-CIC-CONICET), La Plata, Argentina
| | - Ana Agustina Bengoa
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, UNLP-CIC-CONICET), La Plata, Argentina
| | - Carolina Iraporda
- Departamento de Ingeniería Química y Tecnología de los Alimentos, Facultad de Ingeniería, UNCPBA, Olavarría, Argentina
| | - Micaela Medrano
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, UNLP-CIC-CONICET), La Plata, Argentina
| | - Graciela L Garrote
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, UNLP-CIC-CONICET), La Plata, Argentina
| | - Analía G Abraham
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, UNLP-CIC-CONICET), La Plata, Argentina.,Área Bioquímica y Control de Alimentos, Facultad de Ciencias Exactas, UNLP, La Plata, Argentina
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6
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Fabricio MF, Mann MB, Kothe CI, Frazzon J, Tischer B, Flôres SH, Ayub MAZ. Effect of freeze-dried kombucha culture on microbial composition and assessment of metabolic dynamics during fermentation. Food Microbiol 2021; 101:103889. [PMID: 34579857 DOI: 10.1016/j.fm.2021.103889] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 08/18/2021] [Accepted: 08/20/2021] [Indexed: 11/27/2022]
Abstract
Kombucha is a traditional fermented beverage gaining popularity around the world. So far, few studies have investigated its microbiome using next-generation DNA sequencing, whereas the correlation between the microbial community and metabolites evolution along fermentation is still unclear. In this study, we explore this correlation in a traditionally produced kombucha by evaluating its microbial community and the main metabolites produced. We also investigated the effects of starter cultures processed in three different ways (control, starter culture without liquid suspension (CSC), and a freeze-dried starter culture (FDSC)) to evaluate changes in kombucha composition, such as antioxidant activity and sensory analysis. We identified seven genera of bacteria, including Komagataeibacter, Gluconacetobacter, Gluconobacter, Acetobacter, Liquorilactobacillus, Ligilactobacillus, and Zymomonas, and three genera of yeasts, Dekkera/Brettanomyces, Hanseniaspora, and Saccharomyces. Although there were no statistically significant differences in the acceptance test in sensory analysis, different starter cultures resulted in products showing different microbial and biochemical compositions. FDSC decreased Zymomonas and Acetobacter populations, allowing for Gluconobacter predominance, whereas in the control and CSC kombuchas the first two were the predominant genera. Results suggest that the freeze-drying cultures could be implemented to standardize the process and, despite it changes the microbial community, a lower alcohol content could be obtained.
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Affiliation(s)
- Mariana Fensterseifer Fabricio
- Food Science and Technology Institute, Federal University of Rio Grande Do Sul, Av. Bento Gonçalves, 9500, PO Box 15090, ZC 91501-970, Porto Alegre, RS, Brazil
| | - Michele Bertoni Mann
- Postgraduate Program in Agricultural and Environmental Microbiology, Basic Health Sciences Institute, Federal University of Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Caroline Isabel Kothe
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, 78350, Jouy-en-Josas, France
| | - Jeverson Frazzon
- Food Science and Technology Institute, Federal University of Rio Grande Do Sul, Av. Bento Gonçalves, 9500, PO Box 15090, ZC 91501-970, Porto Alegre, RS, Brazil
| | - Bruna Tischer
- Food Science and Technology Institute, Federal University of Rio Grande Do Sul, Av. Bento Gonçalves, 9500, PO Box 15090, ZC 91501-970, Porto Alegre, RS, Brazil
| | - Simone Hickmann Flôres
- Food Science and Technology Institute, Federal University of Rio Grande Do Sul, Av. Bento Gonçalves, 9500, PO Box 15090, ZC 91501-970, Porto Alegre, RS, Brazil
| | - Marco Antônio Záchia Ayub
- Food Science and Technology Institute, Federal University of Rio Grande Do Sul, Av. Bento Gonçalves, 9500, PO Box 15090, ZC 91501-970, Porto Alegre, RS, Brazil.
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Molina M, Cioci G, Moulis C, Séverac E, Remaud-Siméon M. Bacterial α-Glucan and Branching Sucrases from GH70 Family: Discovery, Structure-Function Relationship Studies and Engineering. Microorganisms 2021; 9:microorganisms9081607. [PMID: 34442685 PMCID: PMC8398850 DOI: 10.3390/microorganisms9081607] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/22/2021] [Accepted: 07/25/2021] [Indexed: 01/12/2023] Open
Abstract
Glucansucrases and branching sucrases are classified in the family 70 of glycoside hydrolases. They are produced by lactic acid bacteria occupying very diverse ecological niches (soil, buccal cavity, sourdough, intestine, dairy products, etc.). Usually secreted by their producer organisms, they are involved in the synthesis of α-glucans from sucrose substrate. They contribute to cell protection while promoting adhesion and colonization of different biotopes. Dextran, an α-1,6 linked linear α-glucan, was the first microbial polysaccharide commercialized for medical applications. Advances in the discovery and characterization of these enzymes have remarkably enriched the available diversity with new catalysts. Research into their molecular mechanisms has highlighted important features governing their peculiarities thus opening up many opportunities for engineering these catalysts to provide new routes for the transformation of sucrose into value-added molecules. This article reviews these different aspects with the ambition to show how they constitute the basis for promising future developments.
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Abstract
Dextran is an exopolysaccharide (EPS) synthesized by lactic acid bacteria (LAB) or their enzymes in the presence of sucrose. Dextran is composed of a linear chain of d-glucoses linked by α-(1→6) bonds, with possible branches of d-glucoses linked by α-(1→4), α-(1→3), or α-(1→2) bonds, which can be low (<40 kDa) or high molecular weight (>40 kDa). The characteristics of dextran in terms of molecular weight and branches depend on the producing strain, so there is a great variety in its properties. Dextran has commercial interest because its solubility, viscosity, and thermal and rheological properties allow it to be used in food, pharmaceutical, and research areas. The aim of this review article is to compile the latest research (in the past decade) using LAB to synthesize high or low molecular weight dextran. In addition, studies using modified enzymes to produce dextran with specific structural characteristics (molecular weights and branches) are addressed. On the other hand, special attention is paid to LAB extracted from unconventional sources to expose their capacities as dextran producers and their possible application to compete with the only commercial strain (Leuconostoc mesenteroides NRRL B512).
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Bueno RS, Ressutte JB, Hata NN, Henrique-Bana FC, Guergoletto KB, de Oliveira AG, Spinosa WA. Quality and shelf life assessment of a new beverage produced from water kefir grains and red pitaya. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110770] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Lynch KM, Wilkinson S, Daenen L, Arendt EK. An update on water kefir: Microbiology, composition and production. Int J Food Microbiol 2021; 345:109128. [PMID: 33751986 DOI: 10.1016/j.ijfoodmicro.2021.109128] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 01/31/2021] [Accepted: 02/23/2021] [Indexed: 11/15/2022]
Abstract
Water kefir is a sparkling, slightly acidic fermented beverage produced by fermenting a solution of sucrose, to which dried fruits have been added, with water kefir grains. These gelatinous grains are a symbiotic culture of bacteria and yeast embedded in a polysaccharide matrix. Lactic acid bacteria, yeast and acetic acid bacteria are the primary microbial members of the sugary kefir grain. Amongst other contributions, species of lactic acid bacteria produce the exopolysaccharide matrix from which the kefir grain is formed, while yeast assists the bacteria by a nitrogen source that can be assimilated. Exactly which species predominate within the grain microbiota, however, appears to be dependent on the geographical origin of the grains and the fermentation substrate and conditions. These factors ultimately affect the characteristics of the beverage produced in terms of aroma, flavour, and acidity, for example, but can also be controlled and exploited in the production of a beverage of desired characteristics. The production of water kefir has traditionally occurred on a small scale and the use of defined starter cultures is not commonly practiced. However, as water kefir increases in popularity as a beverage - in part because of consumer lifestyle trends and in part due to water kefir being viewed as a health drink with its purported health benefits - the need for a thorough understanding of the biology and dynamics of water kefir, and for defined and controlled production processes, will ultimately increase. The aim of this review is to provide an update into the current knowledge of water kefir.
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Affiliation(s)
- Kieran M Lynch
- School of Food and Nutritional Sciences, University College Cork, Cork, Ireland
| | - Stuart Wilkinson
- Global Innovation & Technology Centre, Anheuser-Busch InBev nv/sa, Brouwerijplein 1, 3000 Leuven, Belgium
| | - Luk Daenen
- Global Innovation & Technology Centre, Anheuser-Busch InBev nv/sa, Brouwerijplein 1, 3000 Leuven, Belgium
| | - Elke K Arendt
- School of Food and Nutritional Sciences, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland.
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Li X, Wang X, Meng X, Dijkhuizen L, Liu W. Structures, physico-chemical properties, production and (potential) applications of sucrose-derived α-d-glucans synthesized by glucansucrases. Carbohydr Polym 2020; 249:116818. [DOI: 10.1016/j.carbpol.2020.116818] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 07/20/2020] [Accepted: 07/23/2020] [Indexed: 10/23/2022]
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12
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İspirli H, Yüzer MO, Skory C, Colquhoun IJ, Sağdıç O, Dertli E. Characterization of a glucansucrase from Lactobacillus reuteri E81 and production of malto-oligosaccharides. BIOCATAL BIOTRANSFOR 2019. [DOI: 10.1080/10242422.2019.1593969] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hümeyra İspirli
- Department of Food Engineering, Chemical and Metallurgical Engineering Faculty, Yıldız Technical University, Istanbul, Turkey
| | - Mustafa Onur Yüzer
- Department of Food Engineering, Faculty of Engineering, Bayburt University, Bayburt, Turkey
| | - Christopher Skory
- Department of Agriculture, Renewable Product Technology Research Unit, National Center for Agricultural Utilization Research Agricultural Research Service, Peoria, IL, USA
| | - Ian J. Colquhoun
- Analytical Sciences Unit, Quadram Institute Bioscience, Norwich, UK
| | - Osman Sağdıç
- Department of Food Engineering, Chemical and Metallurgical Engineering Faculty, Yıldız Technical University, Istanbul, Turkey
| | - Enes Dertli
- Department of Food Engineering, Faculty of Engineering, Bayburt University, Bayburt, Turkey
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Paiva IMD, Steinberg RDS, Lula IS, Souza-Fagundes EMD, Mendes TDO, Bell MJV, Nicoli JR, Nunes ÁC, Neumann E. Lactobacillus kefiranofaciens and Lactobacillus satsumensis isolated from Brazilian kefir grains produce alpha-glucans that are potentially suitable for food applications. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2016.05.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Zannini E, Waters DM, Coffey A, Arendt EK. Production, properties, and industrial food application of lactic acid bacteria-derived exopolysaccharides. Appl Microbiol Biotechnol 2015; 100:1121-1135. [PMID: 26621802 DOI: 10.1007/s00253-015-7172-2] [Citation(s) in RCA: 217] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 11/08/2015] [Accepted: 11/11/2015] [Indexed: 11/25/2022]
Abstract
Exopolysaccharides (EPS)-producing lactic acid bacteria (LAB) are industrially important microorganisms in the development of functional food products and are used as starter cultures or coadjutants to develop fermented foods. There is large variability in EPS production by LAB in terms of chemical composition, quantity, molecular size, charge, presence of side chains, and rigidity of the molecules. The main body of the review will cover practical aspects concerning the structural diversity structure of EPS, and their concrete application in food industries is reported in details. To strengthen the food application and process feasibility of LAB EPS at industrial level, a future academic research should be combined with industrial input to understand the technical shortfalls that EPS can address.
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Affiliation(s)
- Emanuele Zannini
- School of Food and Nutritional Sciences, University College Cork, Western Road, Cork, Ireland
| | - Deborah M Waters
- School of Food and Nutritional Sciences, University College Cork, Western Road, Cork, Ireland
| | - Aidan Coffey
- Department of Biological Sciences, Cork Institute of Technology, Bishopstown, Cork, Ireland
| | - Elke K Arendt
- School of Food and Nutritional Sciences, University College Cork, Western Road, Cork, Ireland.
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Secreted expression of Leuconostoc mesenteroides glucansucrase in Lactococcus lactis for the production of insoluble glucans. Appl Microbiol Biotechnol 2015; 99:10001-10. [DOI: 10.1007/s00253-015-6854-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 07/07/2015] [Accepted: 07/15/2015] [Indexed: 02/03/2023]
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16
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17
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Côté GL, Cormier RS, Vermillion KE. Glucansucrase acceptor reactions with d-mannose. Carbohydr Res 2014; 387:1-3. [PMID: 24513699 DOI: 10.1016/j.carres.2014.01.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 01/10/2014] [Accepted: 01/13/2014] [Indexed: 10/25/2022]
Abstract
The main acceptor product of glucansucrases with d-mannose has not previously been identified. We used glucansucrases that form water-insoluble α-d-glucans to produce increased yields of acceptor products from d-mannose, and identified the major product as 6-O-α-d-glucopyranosyl-d-mannose. Glucansucrases that synthesize insoluble α-d-glucans produced higher yields of the disaccharide compared to typical dextransucrases.
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Affiliation(s)
- Gregory L Côté
- Renewable Product Technology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, United States Department of Agriculture, 1815 N. University St., Peoria, IL 61604, USA.
| | - Ryan S Cormier
- Renewable Product Technology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, United States Department of Agriculture, 1815 N. University St., Peoria, IL 61604, USA
| | - Karl E Vermillion
- Crop Bioprotection Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, United States Department of Agriculture, 1815 N. University St., Peoria, IL 61604, USA
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18
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Isolation, purification and functional characterization of glucansucrase from probiotic Lactobacillus plantarum DM5. ANN MICROBIOL 2014. [DOI: 10.1007/s13213-014-0815-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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