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Liu L, Du Y, Du Y, Yan W, Li Y, Cui K, Li Z, Yu P, Zhang W, Feng J, Ma W, Zhao H. Exopolysaccharide from Weissella confusa J4-1 inhibits colorectal cancer via induction of cell cycle arrest. Int J Biol Macromol 2023; 253:127625. [PMID: 37884233 DOI: 10.1016/j.ijbiomac.2023.127625] [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: 09/17/2022] [Revised: 10/19/2023] [Accepted: 10/21/2023] [Indexed: 10/28/2023]
Abstract
Exopolysaccharide (EPS), a bioproduct of lactic acid bacteria (LAB), has various health-promoting biological activities that may be beneficial for cancer therapy. This in vivo and in vitro study aimed to elucidate the anti-colorectal cancer (CRC) capacity of a homopolysaccharide EPS obtained from Weissella confusa J4-1 (EPSJ4-1) isolated from the faeces of healthy infants. We confirmed that EPSJ4-1 contained glucose and effectively suppressed the proliferation, migration, and invasion of CRC cells. EPSJ4-1 treatment significantly retarded the growth of HT-29 tumour xenografts without causing cytotoxicity to normal organs. EPSJ4-1 exerts an inhibitory effect on cell proliferation by inducing G0/G1 phase cell cycle arrest in CRC cells. Furthermore, EPSJ4-1 upregulated p21 levels and downregulated mutant p53 and cyclin kinase 2 levels. This is the first study to demonstrate the antitumour effects of EPS from W. confusa on CRC via cell cycle arrest and inhibition of cell migration and invasion, suggesting that EPSJ4-1 has the potential to be developed as a nutraceutical or pharmaceutical drug to prevent and treat CRC.
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Affiliation(s)
- Lei Liu
- Oncology department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yurong Du
- Oncology department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yabing Du
- Oncology department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Weiliang Yan
- Oncology department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yuanzhe Li
- Department of Pediatrics, Children's Hospital Affiliated of Zhengzhou University, Zhengzhou, China
| | - Kang Cui
- Oncology department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Zhen Li
- National Health Commission Key Laboratory of Cardiovascular Regenerative Medicine, Heart Center of Henan Provincial People's Hospital, Central China Fuwai Hospital of Zhengzhou University, Fuwai Central China Cardiovascular Hospital & Central China Branch of National Center for Cardiovascular Diseases, Zhengzhou, Henan 451464, China
| | - Pu Yu
- Oncology department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - WanCun Zhang
- Department of Pediatrics, Children's Hospital Affiliated of Zhengzhou University, Zhengzhou, China
| | - Jianguo Feng
- Department of Anesthesiology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province, China
| | - Wang Ma
- Oncology department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Huan Zhao
- Oncology department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
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2
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K N Y, T PD, P S, S K, R YK, Varjani S, AdishKumar S, Kumar G, J RB. Lignocellulosic biomass-based pyrolysis: A comprehensive review. CHEMOSPHERE 2022; 286:131824. [PMID: 34388872 DOI: 10.1016/j.chemosphere.2021.131824] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/27/2021] [Accepted: 08/04/2021] [Indexed: 05/26/2023]
Abstract
The efficacious application of lignocellulosic biomass for the new valuable chemicals generation curbs the excessive dependency on fossil fuels. Among the various techniques available, pyrolysis has garnered much attention for conversion of lignocellulosic biomass (encompasses cellulose, hemicellulose and lignin components) into product of solid, liquid and gases by thermal decomposition in an efficient manner. Pyrolysis conversion mechanism can be outlined as formation of char, depolymerisation, fragmentation and other secondary reactions. This paper gives a deep insight about the pyrolytic behavior of the lignocellulosic components accompanied by its by-products. Also several parameters such as reaction environment, temperature, residence time and heating rate which has a great impact on the pyrolysis process are also elucidated in a detailed manner. In addition the environmental and economical facet of lignocellulosic biomass pyrolysis for commercialization at industrial scale is critically analyzed. This article also illustrates the prevailing challenges and inhibition in implementing lignocellulosic biomass based pyrolysis with possible solution.
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Affiliation(s)
- Yogalakshmi K N
- Department of Environmental Science and Technology, School of Environment and Earth Sciences, Central University of Punjab, Bathinda, Punjab, 151001, India
| | - Poornima Devi T
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, 627007, Tamilnadu, India
| | - Sivashanmugam P
- Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, 620015, Tamilnadu, India
| | - Kavitha S
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, 627007, Tamilnadu, India
| | - Yukesh Kannah R
- Department of Civil Engineering, Anna University Regional Campus, Tirunelveli, 627007, Tamilnadu, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat, 382010, India
| | - S AdishKumar
- Department of Civil Engineering, University V.O.C College of Engineering, Anna University Thoothukudi Campus, Tamil Nadu, India
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Rajesh Banu J
- Department of Life Sciences, Central University of Tamil Nadu, Neelakudy, Tiruvarur, 610005, India.
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İspirli H, Bowman MJ, Skory CD, Dertli E. Synthesis and characterization of cellobiose-derived oligosaccharides with Bifidogenic activity by glucansucrase E81. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Palaniappan A, Emmambux MN. The challenges in production technology, health-associated functions, physico-chemical properties and food applications of isomaltooligosaccharides. Crit Rev Food Sci Nutr 2021:1-17. [PMID: 34698594 DOI: 10.1080/10408398.2021.1994522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Isomaltooligosaccharides (IMOs) are recognized as functional food ingredients with prebiotic potential that deliver health benefits. IMOs have attained commercial interest as they are produced from low-cost agricultural products that are widely available and have prospective applications in the food industry. The review examines the various production processes and the main challenges involved in deriving diverse structures of IMO with maximized yield and increased functionality. The different characterization and purification techniques employed for structural elucidation, the physico-chemical importance, technological properties, food-based applications and biological effects (in vitro and in vivo interventions) have been discussed in detail. The key finding is the need for research involving biotechnological and enzymology aspects to simplify the production technologies that meet the industrial and consumer requirements. The knowledge from this article delivers a clear insight to scientists, food technologists and the general public for the improved utilization of IMOs to support the emerging market for functional foods and nutraceuticals.
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Affiliation(s)
- Ayyappan Palaniappan
- Department of Consumer and Food Sciences, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
| | - Mohammad Naushad Emmambux
- Department of Consumer and Food Sciences, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
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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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6
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Hu X, Song L, Yang Y, Wang L, Li Y, Miao M. Biosynthesis, structural characteristics and prebiotic properties of maltitol-based acceptor products. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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7
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Teixeira CG, Fusieger A, Milião GL, Martins E, Drider D, Nero LA, de Carvalho AF. Weissella: An Emerging Bacterium with Promising Health Benefits. Probiotics Antimicrob Proteins 2021; 13:915-925. [PMID: 33565028 DOI: 10.1007/s12602-021-09751-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/29/2021] [Indexed: 01/11/2023]
Abstract
Weissella strains have been the subject of much research over the last 5 years because of the genus' technological and probiotic potential. Certain strains have attracted the attention of the pharmaceutical, medical, and food industries because of their ability to produce antimicrobial exopolysaccharides (EPSs). Moreover, Weissella strains are able to keep foodborne pathogens in check because of the bacteriocins, hydrogen peroxide, and organic acids they can produce; all listed have recognized pathogen inhibitory activities. The Weissella genus has also shown potential for treating atopic dermatitis and certain cancers. W. cibaria, W. confusa, and W. paramesenteroides are particularly of note because of their probiotic potential (fermentation of prebiotic fibers) and their ability to survive in the gastrointestinal tract. It is important to note that most of the Weissella strains with these health-promoting properties have been shown to be save safe, due to the absence or the low occurrence of virulence or antibiotic-resistant genes. A large number of scientific studies continue to report on and to support the use of Weissella strains in the food and pharmaceutical industries. This review provides an overview of these studies and draws conclusions for future uses of this rich and previously unexplored genus.
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Affiliation(s)
- Camila Gonçalves Teixeira
- InovaLeite - Laboratório de Pesquisa em Leites eDerivados, Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, 36570900, MG, Brazil
| | - Andressa Fusieger
- InovaLeite - Laboratório de Pesquisa em Leites eDerivados, Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, 36570900, MG, Brazil
| | - Gustavo Leite Milião
- InovaLeite - Laboratório de Pesquisa em Leites eDerivados, Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, 36570900, MG, Brazil
| | - Evandro Martins
- InovaLeite - Laboratório de Pesquisa em Leites eDerivados, Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, 36570900, MG, Brazil
| | - Djamel Drider
- UMR Transfrontalière BioEcoAgro1158, Univ. Lille, INRAE, Univ. Liège, UPJV, YNCREA, Univ. Artois, Univ. Littoral Côte D'Opale, ICV - Institut Charles Viollette, 59000, Lille, France
| | - Luís Augusto Nero
- InsPOA - Laboratório de Inspeção de Produtos de Origem Animal, Departamento de Veterinária, Universidade Federal de Viçosa, Viçosa, 36570900, MG, Brazil.
| | - Antônio Fernandes de Carvalho
- InovaLeite - Laboratório de Pesquisa em Leites eDerivados, Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, 36570900, MG, Brazil.
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İspirli H, Dertli E. Production of lactose derivative hetero-oligosaccharides from whey by glucansucrase E81 and determination of prebiotic functions. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110471] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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9
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Koirala P, Maina NH, Nihtilä H, Katina K, Coda R. Brewers' spent grain as substrate for dextran biosynthesis by Leuconostoc pseudomesenteroides DSM20193 and Weissella confusa A16. Microb Cell Fact 2021; 20:23. [PMID: 33482833 PMCID: PMC7821685 DOI: 10.1186/s12934-021-01515-4] [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: 11/17/2020] [Accepted: 01/09/2021] [Indexed: 01/04/2023] Open
Abstract
Background Lactic acid bacteria can synthesize dextran and oligosaccharides with different functionality, depending on the strain and fermentation conditions. As natural structure-forming agent, dextran has proven useful as food additive, improving the properties of several raw materials with poor technological quality, such as cereal by-products, fiber-and protein-rich matrices, enabling their use in food applications. In this study, we assessed dextran biosynthesis in situ during fermentation of brewers´ spent grain (BSG), the main by-product of beer brewing industry, with Leuconostoc pseudomesenteroides DSM20193 and Weissella confusa A16. The starters performance and the primary metabolites formed during 24 h of fermentation with and without 4% sucrose (w/w) were followed. Results The starters showed similar growth and acidification kinetics, but different sugar utilization, especially in presence of sucrose. Viscosity increase in fermented BSG containing sucrose occurred first after 10 h, and it kept increasing until 24 h concomitantly with dextran formation. Dextran content after 24 h was approximately 1% on the total weight of the BSG. Oligosaccharides with different degree of polymerization were formed together with dextran from 10 to 24 h. Three dextransucrase genes were identified in L. pseudomesenteroides DSM20193, one of which was significantly upregulated and remained active throughout the fermentation time. One dextransucrase gene was identified in W. confusa A16 also showing a typical induction profile, with highest upregulation at 10 h. Conclusions Selected lactic acid bacteria starters produced significant amount of dextran in brewers’ spent grain while forming oligosaccharides with different degree of polymerization. Putative dextransucrase genes identified in the starters showed a typical induction profile. Formation of dextran and oligosaccharides in BSG during lactic acid bacteria fermentation can be tailored to achieve specific technological properties of this raw material, contributing to its reintegration into the food chain.
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Affiliation(s)
- Prabin Koirala
- Department of Food and Nutrition, University of Helsinki, 00014, Helsinki, Finland
| | - Ndegwa Henry Maina
- Department of Food and Nutrition, University of Helsinki, 00014, Helsinki, Finland
| | - Hanna Nihtilä
- Department of Food and Nutrition, University of Helsinki, 00014, Helsinki, Finland
| | - Kati Katina
- Department of Food and Nutrition, University of Helsinki, 00014, Helsinki, Finland
| | - Rossana Coda
- Department of Food and Nutrition, University of Helsinki, 00014, Helsinki, Finland. .,Helsinki Institute of Sustainability Science, Helsinki, Finland.
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İspirli H, Kaya Y, Dertli E. Bifidogenic effect and in vitro immunomodulatory roles of melibiose-derived oligosaccharides produced by the acceptor reaction of glucansucrase E81. Process Biochem 2020. [DOI: 10.1016/j.procbio.2019.12.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Huang SX, Hou DZ, Qi PX, Wang Q, Chen HL, Ci LY, Chen S. Enzymatic synthesis of non-digestible oligosaccharide catalyzed by dextransucrase and dextranase from maltose acceptor reaction. Biochem Biophys Res Commun 2020; 523:651-657. [DOI: 10.1016/j.bbrc.2019.12.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 12/02/2019] [Indexed: 01/05/2023]
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12
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Garcia‐Gonzalez M, Plou FJ, Cervantes FV, Remacha M, Poveda A, Jiménez‐Barbero J, Fernandez‐Lobato M. Efficient production of isomelezitose by a glucosyltransferase activity in Metschnikowia reukaufii cell extracts. Microb Biotechnol 2019; 12:1274-1285. [PMID: 31576667 PMCID: PMC6801145 DOI: 10.1111/1751-7915.13490] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/06/2019] [Accepted: 09/10/2019] [Indexed: 12/23/2022] Open
Abstract
Metschnikowia reukaufii is a widespread yeast able to grow in the plants' floral nectaries, an environment of extreme conditions with sucrose concentrations exceeding 400 g l-1 , which led us into the search for enzymatic activities involved in this sugar use/transformation. New oligosaccharides were produced by transglucosylation processes employing M. reukaufii cell extracts in overload-sucrose reactions. These products were purified and structurally characterized by MS-ESI and NMR techniques. The reaction mixture included new sugars showing a great variety of glycosidic bonds including α-(1→1), α-(1→3) and α-(1→6) linkages. The main product synthesized was the trisaccharide isomelezitose, whose maximum concentration reached 81 g l-1 , the highest amount reported for any unmodified enzyme or microbial extract. In addition, 51 g l-1 of the disaccharide trehalulose was also produced. Both sugars show potential nutraceutical and prebiotic properties. Interestingly, the sugar mixture obtained in the biosynthetic reactions also contained oligosaccharides such as esculose, a rare trisaccharide with no previous NMR structure elucidation, as well as erlose, melezitose and theanderose. All the sugars produced are naturally found in honey. These compounds are of biotechnological interest due to their potential food, cosmeceutical and pharmaceutical applications.
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Affiliation(s)
- Martin Garcia‐Gonzalez
- Centro de Biología Molecular Severo OchoaDepartamento de Biología Molecular (UAM‐CSIC)Universidad Autónoma de MadridCampus Cantoblanco28049MadridSpain
| | | | | | - Miguel Remacha
- Centro de Biología Molecular Severo OchoaDepartamento de Biología Molecular (UAM‐CSIC)Universidad Autónoma de MadridCampus Cantoblanco28049MadridSpain
| | - Ana Poveda
- Centro de Investigación Cooperativa en BiocienciasParque Científico Tecnológico de Bizkaia48160DerioBiscaySpain
| | - Jesús Jiménez‐Barbero
- Centro de Investigación Cooperativa en BiocienciasParque Científico Tecnológico de Bizkaia48160DerioBiscaySpain
| | - Maria Fernandez‐Lobato
- Centro de Biología Molecular Severo OchoaDepartamento de Biología Molecular (UAM‐CSIC)Universidad Autónoma de MadridCampus Cantoblanco28049MadridSpain
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İspirli H, Colquhoun IJ, Şahin E, Sagdic O, Dertli E. Preparation of gentiobiose-derived oligosaccharides by glucansucrase E81 and determination of prebiotic and immune-modulatory functions. Carbohydr Res 2019; 486:107837. [PMID: 31655418 DOI: 10.1016/j.carres.2019.107837] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 10/14/2019] [Accepted: 10/15/2019] [Indexed: 10/25/2022]
Abstract
Gentiobiose-derived oligosaccharides were synthesized by the acceptor reaction of glucansucrase E81 obtained from Lactobacillus reuteri E81 with sucrose and gentiobiose as donor-acceptor sugars, respectively. The reaction products were monitored by TLC analysis and gentiobiose-derived oligosaccharides up to DP 8 were formed during the acceptor reaction as determined by ESI-MS/MS analysis. The glycosylation of the gentiobiose with α-(1 → 6) linkages and α-(1 → 3) linkages was shown by 1H and 13C NMR analysis confirming the structure of these gentiobiose-derived oligosaccharides. The in vitro prebiotic function of the oligosaccharides was determined in which probiotic strains were stimulated whereas no growth was observed in pathogen strains. Gentiobiose-derived oligosaccharides showed immune-modulatory functions in vitro and triggered the production of IL-4, IL12 and TNF-α cytokines in HT29 cells in a dose dependent manner. This study showed the production and functional characterisation of gentiobiose-derived oligosaccharides establishing a promising avenue for future applications.
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Affiliation(s)
- Hümeyra İspirli
- Yıldız Technical University, Chemical and Metallurgical Engineering Faculty, Department of Food Engineering, Istanbul, 34000, Turkey
| | - Ian J Colquhoun
- Analytical Sciences Unit, Quadram Institute Bioscience, Norwich, UK
| | - Engin Şahin
- Department of Food Engineering, Faculty of Engineering, Bayburt University, Bayburt, 69000, Turkey
| | - Osman Sagdic
- Yıldız Technical University, Chemical and Metallurgical Engineering Faculty, Department of Food Engineering, Istanbul, 34000, Turkey
| | - Enes Dertli
- Department of Food Engineering, Faculty of Engineering, Bayburt University, Bayburt, 69000, Turkey.
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Shi Q, Hou Y, Xu Y, Mørkeberg Krogh KBR, Tenkanen M. Enzymatic analysis of levan produced by lactic acid bacteria in fermented doughs. Carbohydr Polym 2018; 208:285-293. [PMID: 30658802 DOI: 10.1016/j.carbpol.2018.12.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/30/2018] [Accepted: 12/16/2018] [Indexed: 12/22/2022]
Abstract
Levans and inulins are fructans with mainly β-(2→6) and β-(2→1) linkages, respectively. Levans are produced by many lactic acid bacteria, e.g. during sourdough fermentation. Levans have shown prebiotic properties and may also function as in situ-produced hydrocolloids. So far, levan contents have been measured by acid hydrolysis, which cannot distinguish levans from e.g. inulins. In order to develop a specific analysis for levan in food matrices, a Paenibacillus amylolyticus endolevanase was combined with exoinulinase for levan hydrolysis. A separate endoinulinase treatment was used to detect the possible presence of inulin. Interfering sugars were removed by a pre-wash with aqueous ethanol. Levan content was estimated from fructose and glucose released in the hydrolysis, with a correction made for the residual fructose and glucose-containing sugars. The method was validated using wheat model doughs spiked with commercial Erwinia levan, and tested by analyzing levan content in Leuconostoc mesenteroides DSM 20343-fermented fava bean doughs.
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Affiliation(s)
- Qiao Shi
- Institute of Agro-Products Processing Science and Technology, Yunnan Academy of Agricultural Sciences, Kunming, 650223, China; Department of Food and Nutrition, P.O. Box 27, FI-00014, University of Helsinki, Finland.
| | - Yaxi Hou
- Department of Food and Nutrition, P.O. Box 27, FI-00014, University of Helsinki, Finland
| | - Yan Xu
- Department of Food and Nutrition, P.O. Box 27, FI-00014, University of Helsinki, Finland
| | | | - Maija Tenkanen
- Department of Food and Nutrition, P.O. Box 27, FI-00014, University of Helsinki, Finland.
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Structural characterization of glucosylated GOS derivatives synthesized by the Lactobacillus reuteri GtfA and Gtf180 glucansucrase enzymes. Carbohydr Res 2018; 470:57-63. [DOI: 10.1016/j.carres.2018.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/17/2018] [Accepted: 10/17/2018] [Indexed: 01/23/2023]
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16
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Bivolarski V, Vasileva T, Gabriel V, Iliev I. Synthesis of glucooligosaccharides with prebiotic potential by glucansucrase URE 13-300 acceptor reactions with maltose, raffinose and lactose. Eng Life Sci 2018; 18:904-913. [PMID: 32624884 DOI: 10.1002/elsc.201800047] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/17/2018] [Accepted: 04/18/2018] [Indexed: 01/12/2023] Open
Abstract
In the present work, we report an efficient synthesis of glucooligosaccharides (GOSs) with prebiotic potential by novel glucansucrase URE 13-300 from Leuconostoc mesenteroides URE 13 strain. The highest total yield of GOSs with degree of polymerization (DP) from 3 to 6 was obtained with maltose as an acceptor and maltose/sucrose (M/S) ratio 1-136 g/L. An efficient modulation of GOSs composition is achieved by varying the M/S ratio. At M/S = 1, 2, 4 and 7 the content of DP3 products gradually increase from 54.50 to 91.70%. When the M/S ratio was decreased the synthesis of DP>3 GOSs is predominant and reaches 75.60% (M/S = 0.25). In addition, the maltose derived GOSs with DP>3, as well as raffinose and lactose glucosylation products have a branched structure which is prerequisite for increased prebiotic potential. The synthesized GOSs were efficiently metabolized by probiotic strains of Lb. plantarum S26, Lb. brevis S27 and Lb. sakei S16, and the calculated values of specific growth rate (μ) were nearly identical to this on glucose media, when maltose derived GOSs were used as a carbohydrate source. Strain specific features were observed in the utilization of the synthesized GOSs, as well as in the production of lactic acid and acetic acid.
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Affiliation(s)
- Veselin Bivolarski
- Department of Biochemistry and Microbiology Plovdiv University "Paisii Hilendarski" Plovdiv Bulgaria
| | - Tonka Vasileva
- Department of Biochemistry and Microbiology Plovdiv University "Paisii Hilendarski" Plovdiv Bulgaria
| | - Valerie Gabriel
- Laboratory of Food and Environmental Biotechnology (LBAE-EA4565) University Institute of Technology "Paul Sabatier" Auch France
| | - Ilia Iliev
- Department of Biochemistry and Microbiology Plovdiv University "Paisii Hilendarski" Plovdiv Bulgaria
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17
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Pham HT, Dijkhuizen L, van Leeuwen SS. Structural characterization of glucosylated lactose derivatives synthesized by the Lactobacillus reuteri GtfA and Gtf180 glucansucrase enzymes. Carbohydr Res 2017; 449:59-64. [DOI: 10.1016/j.carres.2017.07.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 06/22/2017] [Accepted: 07/06/2017] [Indexed: 11/27/2022]
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C. K. Rajendran SR, Okolie CL, Udenigwe CC, Mason B. Structural features underlying prebiotic activity of conventional and potential prebiotic oligosaccharides in food and health. J Food Biochem 2017. [DOI: 10.1111/jfbc.12389] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Subin R. C. K. Rajendran
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture; Dalhousie University; Nova Scotia B2N5E3, Canada
- Verschuren Centre for Sustainability in Energy and the Environment; Cape Breton University; Nova Scotia B1P6L2, Canada
| | - Chigozie Louis Okolie
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture; Dalhousie University; Nova Scotia B2N5E3, Canada
- Verschuren Centre for Sustainability in Energy and the Environment; Cape Breton University; Nova Scotia B1P6L2, Canada
| | - Chibuike C. Udenigwe
- School of Nutrition Sciences, Faculty of Health Sciences; University of Ottawa; Ontario K1N6N5, Canada
| | - Beth Mason
- Verschuren Centre for Sustainability in Energy and the Environment; Cape Breton University; Nova Scotia B1P6L2, Canada
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19
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20
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Côté GL, Skory CD. Isomelezitose formation by glucansucrases. Carbohydr Res 2017; 439:57-60. [PMID: 28110079 DOI: 10.1016/j.carres.2017.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 01/09/2017] [Accepted: 01/09/2017] [Indexed: 02/03/2023]
Abstract
Several glucansucrases were surveyed for their ability to produce isomelezitose, a trisaccharide with the structure α-D-glucopyranosyl (1 → 6) β-D-fructofuranosyl (2 ↔ 1) α-D-glucopyranoside. Nearly all strains tested, with one exception, produced at least trace levels of isomelezitose. Yields were low but significant, ranging from less than 1% to approximately 5% based on sucrose. This trisaccharide may arise in either of two ways: glucopyranosyl transfer to the 6Fru-OH position of sucrose, or to the anomeric OH position of isomaltulose. This study indicates that isomelezitose formation may be a general phenomenon of many glucansucrase reactions.
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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 North University Street, Peoria, IL 61604, USA.
| | - Christopher D Skory
- Renewable Product Technology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, United States Department of Agriculture, 1815 North University Street, Peoria, IL 61604, USA
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21
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Li QP, Wang C, Zhang HB, Hu XQ, Li RH, Hua JH. Designing of a novel dextransucrase efficient in synthesizing oligosaccharides. Int J Biol Macromol 2017; 95:696-703. [DOI: 10.1016/j.ijbiomac.2016.11.114] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 11/29/2016] [Accepted: 11/29/2016] [Indexed: 12/25/2022]
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22
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Song L, Miao M, Jiang B, Xu T, Cui SW, Zhang T. Leuconostoc citreum SK24.002 glucansucrase: Biochemical characterisation and de novo synthesis of α-glucan. Int J Biol Macromol 2016; 91:123-31. [DOI: 10.1016/j.ijbiomac.2016.05.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 03/28/2016] [Accepted: 05/04/2016] [Indexed: 12/29/2022]
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23
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Meng X, Pijning T, Tietema M, Dobruchowska JM, Yin H, Gerwig GJ, Kralj S, Dijkhuizen L. Characterization of the glucansucrase GTF180 W1065 mutant enzymes producing polysaccharides and oligosaccharides with altered linkage composition. Food Chem 2016; 217:81-90. [PMID: 27664611 DOI: 10.1016/j.foodchem.2016.08.087] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 08/23/2016] [Accepted: 08/24/2016] [Indexed: 02/03/2023]
Abstract
Exopolysaccharides produced by lactic acid bacteria are extensively used for food applications. Glucansucrase enzymes of lactic acid bacteria use sucrose to catalyze the synthesis of α-glucans with different linkage compositions, size and physico-chemical properties. Crystallographic studies of GTF180-ΔN show that at the acceptor binding sites +1 and +2, residue W1065 provides stacking interactions to the glucosyl moiety. However, the detailed functional roles of W1065 have not been elucidated. We performed random mutagenesis targeting residue W1065 of GTF180-ΔN, resulting in the generation of 10 mutant enzymes that were characterized regarding activity and product specificity. Characterization of mutant enzymes showed that residue W1065 is critical for the activity of GTF180-ΔN. Using sucrose, and sucrose (donor) plus maltose (acceptor) as substrates, the mutant enzymes synthesized polysaccharides and oligosaccharides with changed linkage composition. The stacking interaction of an aromatic residue at position 1065 is essential for polysaccharide synthesis.
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Affiliation(s)
- Xiangfeng Meng
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands.
| | - Tjaard Pijning
- Biophysical Chemistry, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands.
| | - Martin Tietema
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands.
| | - Justyna M Dobruchowska
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands.
| | - Huifang Yin
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands.
| | - Gerrit J Gerwig
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands.
| | - Slavko Kralj
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands.
| | - Lubbert Dijkhuizen
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands.
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Shi Q, Hou Y, Juvonen M, Tuomainen P, Kajala I, Shukla S, Goyal A, Maaheimo H, Katina K, Tenkanen M. Optimization of Isomaltooligosaccharide Size Distribution by Acceptor Reaction of Weissella confusa Dextransucrase and Characterization of Novel α-(1→2)-Branched Isomaltooligosaccharides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:3276-3286. [PMID: 27050481 DOI: 10.1021/acs.jafc.6b01356] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Long-chain isomaltooligosaccharides (IMOs) are promising prebiotics. IMOs were produced by a Weissella confusa dextransucrase via maltose acceptor reaction. The inputs of substrates (i.e., sucrose and maltose, 0.15-1 M) and dextransucrase (1-10 U/g sucrose) were used to control IMO yield and profile. According to response surface modeling, 1 M sucrose and 0.5 M maltose were optimal for the synthesis of longer IMOs, whereas the dextransucrase dosage showed no significant effect. In addition to the principal linear IMOs, a homologous series of minor IMOs were also produced from maltose. As identified by MS(n) and NMR spectroscopy, the minor trisaccharide contained an α-(1→2)-linked glucosyl residue on the reducing residue of maltose and thus was α-d-glucopyranosyl-(1→2)-[α-d-glucopyranosyl-(1→4)]-d-glucopyranose (centose). The higher members of the series were probably formed by the attachment of a single unit branch to linear IMOs. This is the first report of such α-(1→2)-branched IMOs produced from maltose by a dextransucrase.
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Affiliation(s)
- Qiao Shi
- Department of Food and Environmental Sciences, University of Helsinki , P.O. Box 27, FI-00014 University of Helsinki, Finland
| | - Yaxi Hou
- Department of Food and Environmental Sciences, University of Helsinki , P.O. Box 27, FI-00014 University of Helsinki, Finland
| | - Minna Juvonen
- Department of Food and Environmental Sciences, University of Helsinki , P.O. Box 27, FI-00014 University of Helsinki, Finland
| | - Päivi Tuomainen
- Department of Food and Environmental Sciences, University of Helsinki , P.O. Box 27, FI-00014 University of Helsinki, Finland
| | - Ilkka Kajala
- VTT Technical Research Centre of Finland Ltd. , P.O. Box 1000, FI-02044 VTT, Finland
| | - Shraddha Shukla
- Department of Biotechnology, Indian Institute of Technology Guwahati , Guwahati 781 039, Assam, India
| | - Arun Goyal
- Department of Biotechnology, Indian Institute of Technology Guwahati , Guwahati 781 039, Assam, India
| | - Hannu Maaheimo
- VTT Technical Research Centre of Finland Ltd. , P.O. Box 1000, FI-02044 VTT, Finland
| | - Kati Katina
- Department of Food and Environmental Sciences, University of Helsinki , P.O. Box 27, FI-00014 University of Helsinki, Finland
| | - Maija Tenkanen
- Department of Food and Environmental Sciences, University of Helsinki , P.O. Box 27, FI-00014 University of Helsinki, Finland
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Meng X, Dobruchowska JM, Pijning T, Gerwig GJ, Dijkhuizen L. Synthesis of New Hyperbranched α-Glucans from Sucrose by Lactobacillus reuteri 180 Glucansucrase Mutants. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:433-442. [PMID: 26688101 DOI: 10.1021/acs.jafc.5b05161] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
α-Glucans produced by glucansucrase enzymes of lactic acid bacteria attract strong attention as novel ingredients and functional biopolymers in the food industry. In the present study, α-helix 4 amino acid residues D1085, R1088, and N1089 of glucansucrase GTF180 of Lactobacillus reuteri 180 were targeted for mutagenesis both jointly and separately. Analysis of the mutational effects on enzyme function revealed that all D1085 and R1088 mutants catalyzed the synthesis of hyperbranched α-glucans with 15-22% branching (α1→3,6) linkages, compared to 13% in the wild-type GTF180. In addition, besides native (α1→6) and (α1→3) linkages, all of the mutations introduced a small amount of (α1→4) linkages (5% at most) in the polysaccharides produced. We conclude that α-helix 4 residues, especially D1085 and R1088, constituting part of the +2 acceptor binding subsite, are important determinants for the linkage specificity. The new hyperbranched α-glucans provide very interesting structural diversities and may find applications in the food industry.
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Affiliation(s)
- Xiangfeng Meng
- Microbial Physiology and ‡Biophysical Chemistry, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen , Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Justyna M Dobruchowska
- Microbial Physiology and ‡Biophysical Chemistry, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen , Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Tjaard Pijning
- Microbial Physiology and ‡Biophysical Chemistry, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen , Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Gerrit J Gerwig
- Microbial Physiology and ‡Biophysical Chemistry, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen , Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Lubbert Dijkhuizen
- Microbial Physiology and ‡Biophysical Chemistry, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen , Nijenborgh 7, 9747 AG Groningen, The Netherlands
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