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Lakra AK, Domdi L, Tilwani YM, Arul V. Physicochemical and functional characterization of mannan exopolysaccharide from Weissella confusa MD1 with bioactivities. Int J Biol Macromol 2020; 143:797-805. [DOI: 10.1016/j.ijbiomac.2019.09.139] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/10/2019] [Accepted: 09/22/2019] [Indexed: 11/25/2022]
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Poudel S, Giannone RJ, Farmer AT, Campagna SR, Bible AN, Morrell-Falvey JL, Elkins JG, Hettich RL. Integrated Proteomics and Lipidomics Reveal That the Swarming Motility of Paenibacillus polymyxa Is Characterized by Phospholipid Modification, Surfactant Deployment, and Flagellar Specialization Relative to Swimming Motility. Front Microbiol 2019; 10:2594. [PMID: 31798553 PMCID: PMC6878767 DOI: 10.3389/fmicb.2019.02594] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 10/25/2019] [Indexed: 11/15/2022] Open
Abstract
Paenibacillus polymyxa is a Gram-positive bacterium commonly found associated with plant roots. P. polymyxa can exhibit two forms of flagellar motility: swimming in liquid culture and swarming on a surface. Here, swimming cells were compared to swarming cells using an integrated proteomic and lipidomic approach, yielding information about how lipid modifications and protein/enzyme pathways are tailored for these specific phenotypes. Observed differences in both phospholipid composition and metabolism between the two conditions suggest membrane remodeling in response to the surrounding environment. Key enzymes involved in glycerophospholipid metabolism were abundant in swimming bacteria, while enzymes associated with glycerol-3-phosphate metabolism were more abundant in swarming bacteria. Several glycoside hydrolases were either unique to or more abundant during swarming. This likely reflects the degradation of their own exopolysaccharides to both enhance swarming and supply the necessary chemical energy to compensate for increased flagellar synthesis. The observed upregulation of biosynthetic gene clusters (polyketides, lantibiotics, and surfactin) in swarming bacteria suggest the importance of signaling, antimicrobial activity, and surfactin production during this mode of motility – the latter of which is confirmed via RT-PCR.
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Affiliation(s)
- Suresh Poudel
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States.,Graduate School of Genome Science and Technology, The University of Tennessee, Knoxville, Knoxville, TN, United States
| | - Richard J Giannone
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - Abigail T Farmer
- Department of Chemistry, The University of Tennessee, Knoxville, Knoxville, TN, United States.,Biological and Small Molecule Mass Spectrometry Core, The University of Tennessee, Knoxville, Knoxville, TN, United States
| | - Shawn R Campagna
- Department of Chemistry, The University of Tennessee, Knoxville, Knoxville, TN, United States.,Biological and Small Molecule Mass Spectrometry Core, The University of Tennessee, Knoxville, Knoxville, TN, United States
| | - Amber N Bible
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States.,Department of Biochemistry & Cellular and Molecular Biology, The University of Tennessee, Knoxville, Knoxville, TN, United States
| | - Jennifer L Morrell-Falvey
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States.,Graduate School of Genome Science and Technology, The University of Tennessee, Knoxville, Knoxville, TN, United States.,Department of Biochemistry & Cellular and Molecular Biology, The University of Tennessee, Knoxville, Knoxville, TN, United States
| | - James G Elkins
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - Robert L Hettich
- Graduate School of Genome Science and Technology, The University of Tennessee, Knoxville, Knoxville, TN, United States.,Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
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Abstract
Abstract
Purpose
Lactic acid bacteria (LAB) are traditionally employed in the food industry. LAB strains from goat milk may also present probiotic potential, and it is fundamental to study the safety and functionality aspects which are desirable for their use in food. The objective of this study was to verify the probiotic potential of lactic bacteria isolated from goat milk.
Methods
The presence of safety-related virulence factors (hemolytic activity, gelatinase production, coagulase, and sensitivity to antibiotics) as well as functionality (exopolysaccharide (EPS) production, proteolytic activity, autoaggregation, gas production, survival in the gastrointestinal tract, and antimicrobial activity against bacteria that impair oral health) were determined.
Result
The selected LAB strains are safe against the evaluated parameters and have characteristics of possible probiotic candidates. Especially L. plantarum (DF60Mi) and Lactococcus lactis (DF04Mi) have potential to be added to foods because they have better resistance to simulated gastrointestinal conditions. In addition, they are isolated with already proven antimicrobial activity against Listeria monocytogenes, an important food-borne pathogen. DF60Mi was able to produce EPS (exopolysaccharides). LS2 and DF4Mi strains, both Lactococcus lactis subsp. lactis, demonstrated antimicrobial activity against S. mutans ATCC 25175, a recurrent microorganism in oral pathologies, mainly caries.
Conclusion
This study provides subsidies for future exploration of the potentialities of these LAB strains for both the development of new functional foods and for application in oral health.
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Kouipou Toghueo RM, Boyom FF. Endophytes from ethno-pharmacological plants: Sources of novel antioxidants- A systematic review. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101430] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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55
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Physicochemical characterization and antioxidant activity of cell-bound exopolysaccharides from Lactobacillus fermentum S1 obtained by two extraction methods. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.06.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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56
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Wang K, Niu M, Yao D, Zhao J, Wu Y, Lu B, Zheng X. Physicochemical characteristics and in vitro and in vivo antioxidant activity of a cell-bound exopolysaccharide produced by Lactobacillus fermentum S1. Int J Biol Macromol 2019; 139:252-261. [PMID: 31374277 DOI: 10.1016/j.ijbiomac.2019.07.200] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/22/2019] [Accepted: 07/29/2019] [Indexed: 11/27/2022]
Abstract
A cell-bound exopolysaccharide (c-EPS) from Lactobacillus fermentum S1 was isolated and purified to near homogeneity by anion exchange and gel filtration chromatography. The c-EPS is a homogeneous heteropolysaccharide with an average molecular weight of 7.19 × 105 Da and comprises mainly mannose, rhamnose, glucose, and galactose. Fourier transform infrared spectroscopy spectrum of the c-EPS exhibited typical characteristic absorption peaks of polysaccharides. Methylation and NMR analyses showed that the c-EPS had a backbone of α-D-Galp-(1 → 3), α-L-Rhap-(1 → 2), α-D-Glcp-(1 → 3), β-D-Galp-(1 → 3), β-D-Glclp-(1 → 2), and β-L-Rhap-(1 → 3,4) residues, terminated with α-D-Manp-(1 → residue. The advanced structure study indicated the c-EPS not to have a triple-helical conformation, while the microstructural study revealed a hollow porous structure for c-EPS. Further, the thermal analysis showed that the degradation temperature for the c-EPS was 288.0 °C; its peak temperature was 89.4 °C with an enthalpy value of 273.1 J/g. Moreover, the c-EPS exhibited potent DPPH, hydroxyl, and ABTS+ radicals scavenging activities, as well as FRAP in a dose-dependent manner, which could significantly enhance the T-AOC and SOD activity and reduce MDA level in Caenorhabditis elegans. Therefore, this c-EPS could be utilized as a promising natural antioxidant for application in functional foods.
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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, PR China
| | - Mengmeng Niu
- 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
| | - Jing Zhao
- College of Food science, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Yue Wu
- College of Food science, 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, PR China.
| | - Xiqun Zheng
- College of Food science, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China; National Coarse Cereals Engineering Research Center, Daqing, PR China.
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Peyrat LA, Tsafantakis N, Georgousaki K, Ouazzani J, Genilloud O, Trougakos IP, Fokialakis N. Terrestrial Microorganisms: Cell Factories of Bioactive Molecules with Skin Protecting Applications. Molecules 2019; 24:E1836. [PMID: 31086077 PMCID: PMC6539289 DOI: 10.3390/molecules24091836] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/18/2019] [Accepted: 04/23/2019] [Indexed: 11/23/2022] Open
Abstract
It is well known that terrestrial environments host an immense microbial biodiversity. Exposed to different types of stress, such as UV radiation, temperature fluctuations, water availability and the inter- / intra-specific competition for resources, terrestrial microorganisms have been evolved to produce a large spectrum of bioactive molecules. Bacteria, archaea, protists, fungi and algae have shown a high potential of producing biomolecules for pharmaceutical or other industrial purposes as they combine a sustainable, relatively low-cost and fast-production process. Herein, we provide an overview of the different bioactive molecules produced by terrestrial microorganisms with skin protecting applications. The high content in polyphenolic and carotenoid compounds produced by several strains, as well as the presence of exopolysaccharides, melanins, indole and pyrrole derivatives, mycosporines, carboxylic acids and other molecules, are discussed in the context of their antioxidant, photo-protective and skin-whitening activity. Relevant biotechnological tools developed for the enhanced production of high added value natural products, as well as the protecting effect of some antioxidant, hydrolytic and degrading enzymes are also discussed. Furthermore, we describe classes of microbial compounds that are used or have the potential to be used as antimicrobials, moisturizers, biosurfactants, pigments, flavorings and fragrances.
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Affiliation(s)
- Laure-Anne Peyrat
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece.
| | - Nikolaos Tsafantakis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece.
| | - Katerina Georgousaki
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece.
| | - Jamal Ouazzani
- Institut de Chimie des Substances Naturelles (ICSN), Centre National de la Recherche Scientifique, 91198 Gif-sur-Yvette, France.
| | | | - Ioannis P Trougakos
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, 15784 Athens, Greece.
| | - Nikolas Fokialakis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece.
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Fungal Exocellular (1-6)-β-d-glucan: Carboxymethylation, Characterization, and Antioxidant Activity. Int J Mol Sci 2019; 20:ijms20092337. [PMID: 31083511 PMCID: PMC6539860 DOI: 10.3390/ijms20092337] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/23/2019] [Accepted: 05/09/2019] [Indexed: 12/12/2022] Open
Abstract
Exocellular (1→6)-β-d-glucan (lasiodiplodan) produced by the fungus Lasiodiplodia theobromae MMPI was derivatized by carboxymethylation using different concentrations of a derivatizing agent. Lasiodiplodan was derivatized by carboxymethylation in an attempt to increase its solubility and enhance its biological activities. Carboxymethylglucans with degrees of substitution (DS) of 0.32, 0.47, 0.51, 0.58, and 0.68 were produced and characterized. FTIR analysis showed a band of strong intensity at 1600 cm−1 and an absorption band at 1421 cm−1, resulting from asymmetric and symmetrical stretching vibrations, respectively, of the carboxymethyl group COO- in the carboxymethylated samples. Thermal analysis showed that native lasiodiplodan (LN) and carboxymethylated derivatives (LC) exhibited thermal stability up to 200–210 °C. X-ray diffractometry demonstrated that both native and carboxymethylated lasiodiplodan presented predominantly an amorphous nature. Scanning electron microscopy revealed that carboxymethylation promoted morphological changes in the biopolymer and increased porosity, and alveolar structures were observed along the surface. The introduction of carboxymethyl groups in the macromolecule promoted increased solubility and potentiated the hydroxyl radical-scavenging activity, suggesting a correlation between degree of substitution and antioxidant activity.
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Antioxidant, immunomodulatory, oxidative stress inhibitory and iron supplementation effect of Astragalus membranaceus polysaccharide-iron (III) complex on iron-deficiency anemia mouse model. Int J Biol Macromol 2019; 132:213-221. [PMID: 30926500 DOI: 10.1016/j.ijbiomac.2019.03.196] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 03/08/2019] [Accepted: 03/26/2019] [Indexed: 12/30/2022]
Abstract
As iron supplement, the antioxidant activities of APS-iron (III) complex were comprehensively evaluated by 5-axe cobweb charts, which indicated the APS-iron (III) complex had a certain antioxidant activity and been weaker than that of APS. The results of immunological activity experiments indicated the stimulation index increased with APS-iron (III) complex concentration increase. When the concentration of the APS-iron (III) complex was 50 μg/mL, the lymphocytes proliferation increased by 35.7% compared with APS. APS-iron (III) complex also had better complement fixing activity than APS, 0.589 mg/mL of which achieved 50% complement fixing activities. Through the iron supplement experiments on iron-deficiency anemia mouse model, we found the APS-iron (III) complex faster increased hemoglobin concentration, SOD, CAT and faster decreased MDA to the normal level than Niferex and ferrous sulfate. Histological results revealed that the tissue sections were clear without obvious pathological changes and bone marrow had most hematopoietic cells from APS-iron (III) complex rat group, which also proved the APS-iron (III) complex had no significant side effects. Therefore, APS-iron (III) complex may be developed as a multifunctional iron supplement for clinical application.
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60
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Exopolysaccharides produced by Lactobacillus plantarum: technological properties, biological activity, and potential application in the food industry. ANN MICROBIOL 2019. [DOI: 10.1007/s13213-019-01456-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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61
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Chen P, Liu L, Zhang X, Massounga Bora AF, Li X, Zhao M, Hao X, Wang Y. Antioxidant activity of Cheddar cheese during its ripening time and after simulated gastrointestinal digestion as affected by probiotic bacteria. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2019. [DOI: 10.1080/10942912.2019.1579836] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Ping Chen
- College of Food Science, Northeast Agricultural University, Harbin, China
- Key Laboratory of Dairy Science of Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Lu Liu
- College of Food Science, Northeast Agricultural University, Harbin, China
- Key Laboratory of Dairy Science of Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Xiuxiu Zhang
- College of Food Science, Northeast Agricultural University, Harbin, China
- Key Laboratory of Dairy Science of Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Awa Fanny Massounga Bora
- College of Food Science, Northeast Agricultural University, Harbin, China
- Key Laboratory of Dairy Science of Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Xiaodong Li
- College of Food Science, Northeast Agricultural University, Harbin, China
- Key Laboratory of Dairy Science of Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Mingqi Zhao
- College of Food Science, Northeast Agricultural University, Harbin, China
- Key Laboratory of Dairy Science of Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Xinyue Hao
- College of Food Science, Northeast Agricultural University, Harbin, China
- Key Laboratory of Dairy Science of Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Yu Wang
- College of Food Science, Northeast Agricultural University, Harbin, China
- Key Laboratory of Dairy Science of Ministry of Education, Northeast Agricultural University, Harbin, China
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Secondary Metabolites Profiling of Acinetobacter baumannii Associated with Chili ( Capsicum annuum L.) Leaves and Concentration Dependent Antioxidant and Prooxidant Properties. BIOMED RESEARCH INTERNATIONAL 2019; 2019:6951927. [PMID: 30868071 PMCID: PMC6379878 DOI: 10.1155/2019/6951927] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 01/02/2019] [Accepted: 01/16/2019] [Indexed: 12/16/2022]
Abstract
Secondary bioactive compounds of endophytes are inevitable biomolecules of therapeutical importance. In the present study, secondary metabolites profiling of an endophytic bacterial strain, Acinetobacter baumannii, were explored using GC-MS study. Presence of antioxidant substances and antioxidant properties in chloroform (CHL), diethyl ether (DEE), and ethyl acetate (EA) crude extracts of the endophytic bacteria were studied. Total phenolic content (TPC), total flavonoid content (TFC), total antioxidant capacity (TAC), 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, and ferrous ion chelating assay were evaluated. A total of 74 compounds were identified from the GC-MS analysis of the EA extract representing mostly alkane compounds followed by phenols, carboxylic acids, aromatic heterocyclic compounds, ketones, aromatic esters, aromatic benzenes, and alkenes. Among the two phenolic compounds, namely, phenol, 2,4-bis(1,1-dimethylethyl)- and phenol, 3,5-bis(1,1-dimethylethyl)-, the former was found in abundance (11.56%) while the latter was found in smaller quantity (0.14%). Moreover, the endophytic bacteria was found to possess a number of metal ions including Fe(II) and Cu(II) as 1307.13 ± 2.35 ppb and 42.38 ± 0.352 ppb, respectively. The extracts exhibited concentration dependent antioxidant and prooxidant properties at high and low concentrations, respectively. The presence of phenolic compounds and metal ions was believed to play an important role in the antioxidant and prooxidant potentials of the extracts. Further studies are suggested for exploring the untapped resource of endophytic bacteria for the development of novel therapeutic agents.
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Jia K, Tao X, Liu Z, Zhan H, He W, Zhang Z, Zeng Z, Wei H. Characterization of novel exopolysaccharide of Enterococcus faecium WEFA23 from infant and demonstration of its in vitro biological properties. Int J Biol Macromol 2018; 128:710-717. [PMID: 30594615 DOI: 10.1016/j.ijbiomac.2018.12.245] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 12/07/2018] [Accepted: 12/26/2018] [Indexed: 12/12/2022]
Abstract
In this study exopolysaccharide (EPS) of Enterococcus faecium WEFA23 from healthy infant's feces was yielded as high as 130 mg/L by fermentation. By purification the EPS was further fractioned into A23-1, A23-2, A23-3 and A23-4 on HiTrap Q HP and Superdex G-200 column. As the major purified fractions, A23-2 and A23-4 were analyzed for the preliminary structures and investigated for the biological properties in vitro. The molecular weight of A23-2 and A23-4 was 2.50 × 104 Da and 3.23 × 104 Da, respectively. A23-2 was composed of mannose, glucose and galactose with a ratio of 1.38:1.00:1.42, while A23-4 consisted of only mannose. The antioxidant ability of A23-2 was significantly higher than that of A23-4, as proved by scavenging test of DPPH radical, hydroxyl radical and superoxide radical. Both A23-2 and A23-4 exhibited strong inhibition against the adhesion of L. monocytogenes CMCC54007 on HT-29 cells no matter for the styles of competition, displacement and exclusion. Notably, for exclusion they had a maximal inhibition rate of 89.85 ± 0.46% and 90.81 ± 2.29%, respectively, at 200 μg/mL.
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Affiliation(s)
- Kaiying Jia
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Xueying Tao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Zhengqi Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Hui Zhan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Weijun He
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Zhihong Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Zheling Zeng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Hua Wei
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
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Characterization of an extracellular polysaccharide produced by a Saharan bacterium Paenibacillus tarimensis REG 0201M. ANN MICROBIOL 2018. [DOI: 10.1007/s13213-018-1406-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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65
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Preparation, characterization, antioxidant activity and protective effect against cellular oxidative stress of polysaccharide from Cynanchum auriculatum Royle ex Wight. Int J Biol Macromol 2018; 119:1068-1076. [DOI: 10.1016/j.ijbiomac.2018.08.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/22/2018] [Accepted: 08/07/2018] [Indexed: 12/15/2022]
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66
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Silambarasan S, Logeswari P, Cornejo P, Kannan VR. Evaluation of the production of exopolysaccharide by plant growth promoting yeast Rhodotorula sp. strain CAH2 under abiotic stress conditions. Int J Biol Macromol 2018; 121:55-62. [PMID: 30290257 DOI: 10.1016/j.ijbiomac.2018.10.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 09/03/2018] [Accepted: 10/02/2018] [Indexed: 01/05/2023]
Abstract
The capability of plant growth promoting microbes to survive under abiotic stresses has important significance for improving plant growth and productivity. Among the various plant growth promoting biomolecules produced by microbes, exopolysaccharide (EPS) help microbes to survive in inhospitable environments and endure environmental stressful conditions. In the present study, a yeast strain CAH2 was isolated from Beta vulgaris rhizosphere soil and identified as Rhodotorula sp., based on the partial 18S rRNA gene sequence analysis. Rhodotorula sp. strain CAH2 was found to tolerate higher concentrations of Al (6 mM), NaCl (150 mM) and PEG-6000 (15%, w/v). The strain CAH2 was shown to produce 7.5 g L-1 of EPS in the production medium with sucrose and yeast extract as a carbon and nitrogen sources, respectively. The EPS yield was increased constantly with increasing concentrations of Al, NaCl and PEG-6000. The structural feature of EPS studied through FT-IR and NMR spectral analysis confirmed the presence of glucose, mannose and galactose. The yeast strain CAH2 was produced multiple plant growth promoting traits in the presence and absence of abiotic stresses. Finally, these results indicate that the production of EPS could be safeguard the plant growth promoting Rhodotorula sp. strain CAH2 from unfavourable environmental conditions.
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Affiliation(s)
- Sivagnanam Silambarasan
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco, Chile
| | - Peter Logeswari
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco, Chile
| | - Pablo Cornejo
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco, Chile; Scientific and Technological Bioresource Nucleus, BIOREN-UFRO, Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco, Chile.
| | - Velu Rajesh Kannan
- Rhizosphere Biology Laboratory, Department of Microbiology, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
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Prathyusha A, Mohana Sheela G, Bramhachari P. Chemical characterization and antioxidant properties of exopolysaccharides from mangrove filamentous fungi Fusarium equiseti ANP2. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2018; 19:e00277. [PMID: 30197873 PMCID: PMC6127374 DOI: 10.1016/j.btre.2018.e00277] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 08/09/2018] [Accepted: 08/09/2018] [Indexed: 12/27/2022]
Abstract
A filamentous fungi F. equiseti strain ANP2 with good exopolysaccharide (EPS) yield, apparent viscosity was screened and isolated from Krishna estuarine mangrove sediments. Based on molecular characteristics the selected strain was confirmed as F. equiseti, yielded EPS (4.9 ± 0.25 g/L) and whole cell biomass (3.5 ± 0.2 g/L) in MSM during early stationary phase. The crude EPS was purified by chromatography of Q-Sepharose and Superdex-75, affording Ms and MF-1 fractions were obtained, respectively. Chemical analyses revealed that EPS is primarily composed of neutral sugars and proteins. FTIR-spectroscopy revealed presence of hydroxyl, carbonyl groups and glycosidic bonds which correspond to typical heteropolysaccharide. GC analysis demonstrated that MF-1 mainly consist of mannose (72.6%) and glucose (27.3%). Viscosity studies exhibited typical non-Newtonian pseudoplastic behaviour with high viscosity. The scavenging ability on hydroxyl radicals, indicate that MF-1-EPS has good antioxidant activity. Current study demonstrated that MF-1 differed from previously characterized Fusarium sp., and can serve as potential antioxidant.
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Affiliation(s)
- A.M.V.N. Prathyusha
- Department of Biotechnology, Krishna University, Machilipatnam, AP, 52100, India
| | - G. Mohana Sheela
- Departmnt of Biotecnology, Vignan University, Vadlamudi, Guntur, AP, 522213, India
| | - P.V. Bramhachari
- Department of Biotechnology, Krishna University, Machilipatnam, AP, 52100, India
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Immunomodulatory activity of exopolysaccharide from the rhizobacterium Paenibacillus polymyxa CCM 1465. Arch Microbiol 2018; 200:1471-1480. [PMID: 30155554 DOI: 10.1007/s00203-018-1564-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 08/20/2018] [Accepted: 08/22/2018] [Indexed: 01/08/2023]
Abstract
Bacterial polysaccharides are promising stimulants of protective functions in humans and animals. We investigated the ability of exopolysaccharide from the rhizobacterium Paenibacillus polymyxa CCM 1465 to induce nonspecific resistance factors in the macroorganism. We examined in vitro the effect of the exopolysaccharide, produced with different carbon sources, on the phagocytic activity of murine macrophages, on the generation of reactive oxygen species and of enzymes (acid phosphatase and myeloperoxidase), on the proliferation of murine splenocytes, and on the synthesis of proinflammatory cytokines [interleukin-1 (IL-1) and tumor necrosis factor α (TNF-α)] by human mononuclear cells. The exopolysaccharide promoted the phagocytosis of bacterial cells, activated metabolic processes in human and animal leukocytes, and moderately affected the production of TNF-α and IL-1β. The exopolysaccharides produced on media with glucose and sucrose differed in their effect on the immune cells, possibly owing to their different compositions, structures, and properties. The results validly indicate that the exopolysaccharide of P. polymyxa CCM 1465 promotes nonspecific immunity. Therefore, it can find application as a biologically active immunomodulatory substance.
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Chatterjee S, Mukhopadhyay SK, Gauri SS, Dey S. Sphingobactan, a new α-mannan exopolysaccharide from Arctic Sphingobacterium sp. IITKGP-BTPF3 capable of biological response modification. Int Immunopharmacol 2018; 60:84-95. [DOI: 10.1016/j.intimp.2018.04.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 04/21/2018] [Accepted: 04/23/2018] [Indexed: 01/17/2023]
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Ramamoorthy S, Gnanakan A, S. Lakshmana S, Meivelu M, Jeganathan A. Structural characterization and anticancer activity of extracellular polysaccharides from ascidian symbiotic bacterium Bacillus thuringiensis. Carbohydr Polym 2018; 190:113-120. [DOI: 10.1016/j.carbpol.2018.02.047] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 02/15/2018] [Accepted: 02/16/2018] [Indexed: 01/12/2023]
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71
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Nguyen VB, Nguyen TH, Doan CT, Tran TN, Nguyen AD, Kuo YH, Wang SL. Production and Bioactivity-Guided Isolation of Antioxidants with α-Glucosidase Inhibitory and Anti-NO Properties from Marine Chitinous Materials. Molecules 2018; 23:E1124. [PMID: 29747410 PMCID: PMC6100624 DOI: 10.3390/molecules23051124] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 05/06/2018] [Accepted: 05/08/2018] [Indexed: 12/26/2022] Open
Abstract
Natural and bioactive products have been of great interest due to their benefit as health foods and drugs to prevent various diseases. The aim of this study is to efficiently reuse marine chitinous materials (CMs), abundant and low-cost fishery by-products, for the bio-synthesis, isolation, and identification of antioxidant compounds possessing some other beneficial bioactivities. Paenibacillus sp. was used to convert CMs to antioxidants. Among various tested CMs, squid pen powder (SPP) gave the best results when used as the sole carbon/nitrogen source. Fermented SPP (FSPP) had comparable antioxidant activity (IC50 = 124 µg/mL) to that of α-tocopherol (IC50 = 30 µg/mL). The antioxidant productivity increased 1.83-fold after culture optimization. The use of multiple techniques, including Diaion, silica, and preparative HPLC columns coupled with a bioassay resulted in the isolation of two major antioxidants characterized as exopolysaccharides and homogentisic acid. These isolated compounds showed great maximum activity and low IC50 values (96%, 30 µg/mL and 99%, 5.4 µg/mL, respectively) which were comparable to that of α-tocopherol (95%, 24 µg/mL). The crude sample, fractions, and isolated compounds also demonstrated α-glucosidase inhibition and anti⁻inflammatory activity. Notably, homogentisic acid was found as a non-sugar-based moiety α-glucosidase inhibitor which show much higher inhibition (IC50 = 215 µg/mL) than that of acarbose (IC50 = 1324 µg/mL) and also possessed acceptable anti⁻inflammatory activity (IC50 = 9.8 µg/mL). The results highlighted the value of using seafood processing by-products, like squid pens, for the production of several compounds possessing multi-benefit bioactivities and no cytotoxicity.
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Affiliation(s)
- Van Bon Nguyen
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam.
| | - Thi Hanh Nguyen
- Department of Science and Technology, Tay Nguyen University, Buon Ma Thuot City 630000, Vietnam.
| | - Chien Thang Doan
- Department of Science and Technology, Tay Nguyen University, Buon Ma Thuot City 630000, Vietnam.
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan.
| | - Thi Ngoc Tran
- Department of Science and Technology, Tay Nguyen University, Buon Ma Thuot City 630000, Vietnam.
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan.
| | - Anh Dzung Nguyen
- Institute of Biotechnology and Environment, Tay Nguyen University, Buon Ma Thuot City 630000, Vietnam.
| | - Yao-Haur Kuo
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 11221, Taiwan.
| | - San-Lang Wang
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan.
- Life Science Development Center, Tamkang University, New Taipei City 25137, Taiwan.
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72
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Chen G, Wang M, Xie M, Wan P, Chen D, Hu B, Ye H, Zeng X, Liu Z. Evaluation of chemical property, cytotoxicity and antioxidant activity in vitro and in vivo of polysaccharides from Fuzhuan brick teas. Int J Biol Macromol 2018; 116:120-127. [PMID: 29730012 DOI: 10.1016/j.ijbiomac.2018.04.184] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 03/21/2018] [Accepted: 04/30/2018] [Indexed: 01/24/2023]
Abstract
Fuzhuan brick tea (FBT) possesses various health-promoting functions. However, the available information regarding biological activity of polysaccharides from FBT (FBTPS) is still limited. In this work, the chemical property, cytotoxicity and antioxidant activity in vitro and in vivo of FBTPS were evaluated. It was found that FBTPSs were typical acidic heteropolysaccharides mainly composed of Man, Rha, GalA, Glc, Gal and Ara with little molar content of Rib and GlcA. FBTPS showed little toxicity to human hepatic epithelial (L-02) cell. FBTPS exhibited antioxidant activities, including limited scavenging activity on DPPH free radicals (ranged from 54.3 ± 1.9 to 67.8 ± 2.5%), noticeable scavenging activity on superoxide radicals (over 85%), superior scavenging activity on ABTS radicals (near 100%), and protective effect on H2O2-induced oxidative injury in rat pheochromocytoma line 12 (PC12) cell. Moreover, FBTPS showed significant amelioration of high-fat diet-induced oxidative injury in mice. The results suggest that FBTPS, as natural safe antioxidants, may have potential application in functional foods.
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Affiliation(s)
- Guijie Chen
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Mingjia Wang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Minhao Xie
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Peng Wan
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Dan Chen
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Bing Hu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Hong Ye
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Xiaoxiong Zeng
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Zhonghua Liu
- Key Laboratory of Ministry of Education for Tea Science, Hunan Agricultural University, Changsha 410128, China; National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Changsha 410128, China.
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73
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Adesulu-Dahunsi A, Sanni A, Jeyaram K, Ojediran J, Ogunsakin A, Banwo K. Extracellular polysaccharide from Weissella confusa OF126: Production, optimization, and characterization. Int J Biol Macromol 2018; 111:514-525. [DOI: 10.1016/j.ijbiomac.2018.01.060] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 12/19/2017] [Accepted: 01/09/2018] [Indexed: 12/17/2022]
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74
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Rani RP, Anandharaj M, David Ravindran A. Characterization of a novel exopolysaccharide produced by Lactobacillus gasseri FR4 and demonstration of its in vitro biological properties. Int J Biol Macromol 2018; 109:772-783. [DOI: 10.1016/j.ijbiomac.2017.11.062] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 10/19/2017] [Accepted: 11/09/2017] [Indexed: 01/05/2023]
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75
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Chen M, Li Y, Liu Z, Qu Y, Zhang H, Li D, Zhou J, Xie S, Liu M. Exopolysaccharides from a Codonopsis pilosula endophyte activate macrophages and inhibit cancer cell proliferation and migration. Thorac Cancer 2018; 9:630-639. [PMID: 29577649 PMCID: PMC5928371 DOI: 10.1111/1759-7714.12630] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 02/24/2018] [Accepted: 02/24/2018] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Exopolysaccharides with structural diversity have shown wide applications in biomaterial, food, and pharmaceutical industries. Herein, we isolated an endophytic strain, 14-DS-1, from the traditional medicinal plant Codonopsis pilosula to elucidate the characteristics and anti-cancer activities of purified exopolysaccharides. METHODS HPLC and GC-MS were conducted to purify and characterize the exopolysaccharides isolated from 14-DS-1. Quantitative RT-PCR, cell migration assays, immunofluorescence staining, and flow cytometry analysis were conducted to investighate the biological activity of DSPS. RESULTS We demonstrated that exopolysaccharides isolated from 14-DS-1 (DSPS), which were predominately composed of six monosaccharides, showed anti-cancer activities. Biological activity analysis revealed that exposure to DSPS induced macrophage activation and polarization by promoting the production of TNF-α and nitric oxide. Further analysis revealed that DSPS treatment promoted macrophage infiltration, whereas cancer cell migration was suppressed. In addition, DSPS exposure led to S-phase arrest and apoptosis in cancer cells. Immunofluorescence staining revealed that treatment with DSPS resulted in defects in spindle orientation and positioning. CONCLUSION These findings thus suggest that DSPS may have promising potential in cancer therapy.
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Affiliation(s)
- Min Chen
- State Key Laboratory of Microbial Technology, School of Life Sciences, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Shandong University, Jinan, Shandong, China
| | - Yuanyuan Li
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Zhu Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Yajun Qu
- State Key Laboratory of Microbial Technology, School of Life Sciences, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Shandong University, Jinan, Shandong, China
| | - Huajie Zhang
- State Key Laboratory of Microbial Technology, School of Life Sciences, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Shandong University, Jinan, Shandong, China
| | - Dengwen Li
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Jun Zhou
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China.,Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Institute of Biomedical Sciences, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Songbo Xie
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Institute of Biomedical Sciences, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Min Liu
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Institute of Biomedical Sciences, College of Life Sciences, Shandong Normal University, Jinan, China
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76
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Doan CT, Tran TN, Nguyen VB, Nguyen AD, Wang SL. Conversion of Squid Pens to Chitosanases and Proteases via Paenibacillus sp. TKU042. Mar Drugs 2018; 16:E83. [PMID: 29517987 PMCID: PMC5867627 DOI: 10.3390/md16030083] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 02/26/2018] [Accepted: 03/06/2018] [Indexed: 01/25/2023] Open
Abstract
Chitosanases and proteases have received much attention due to their wide range of applications. Four kinds of chitinous materials, squid pens, shrimp heads, demineralized shrimp shells and demineralized crab shells, were used as the sole carbon and nitrogen (C/N) source to produce chitosanases, proteases and α-glucosidase inhibitors (αGI) by four different strains of Paenibacillus. Chitosanase productivity was highest in the culture supernatants using squid pens as the sole C/N source. The maximum chitosanase activity of fermented squid pens (0.759 U/mL) was compared to that of fermented shrimp heads (0.397 U/mL), demineralized shrimp shells (0.201 U/mL) and demineralized crab shells (0.216 U/mL). A squid pen concentration of 0.5% was suitable for chitosanase, protease and αGI production via Paenibacillus sp. TKU042. Multi-purification, including ethanol precipitation and column chromatography of Macro-Prep High S as well as Macro-Prep DEAE (diethylaminoethyl), led to the isolation of Paenibacillus sp. TKU042 chitosanase and protease with molecular weights of 70 and 35 kDa, respectively. For comparison, 16 chitinolytic bacteria, including strains of Paenibacillus, were investigated for the production of chitinase, exochitinase, chitosanase, protease and αGI using two kinds of chitinous sources.
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Affiliation(s)
- Chien Thang Doan
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan.
- Department of Science and Technology, Tay Nguyen University, Buon Ma Thuot City 630000, Vietnam.
| | - Thi Ngoc Tran
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan.
- Department of Science and Technology, Tay Nguyen University, Buon Ma Thuot City 630000, Vietnam.
| | - Van Bon Nguyen
- Department of Science and Technology, Tay Nguyen University, Buon Ma Thuot City 630000, Vietnam.
| | - Anh Dzung Nguyen
- Institute of Biotechnology and Environment, Tay Nguyen University, Buon Ma Thuot City 630000, Vietnam.
| | - San-Lang Wang
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan.
- Life Science Development Center, Tamkang University, New Taipei City 25137, Taiwan.
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77
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Adesulu-Dahunsi A, Sanni A, Jeyaram K. Production, characterization and In vitro antioxidant activities of exopolysaccharide from Weissella cibaria GA44. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2017.09.013] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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78
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Malick A, Khodaei N, Benkerroum N, Karboune S. Production of exopolysaccharides by selected Bacillus strains: Optimization of media composition to maximize the yield and structural characterization. Int J Biol Macromol 2017; 102:539-549. [DOI: 10.1016/j.ijbiomac.2017.03.151] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 03/20/2017] [Accepted: 03/21/2017] [Indexed: 12/23/2022]
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79
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Mahdhi A, Leban N, Chakroun I, Chaouch MA, Hafsa J, Fdhila K, Mahdouani K, Majdoub H. Extracellular polysaccharide derived from potential probiotic strain with antioxidant and antibacterial activities as a prebiotic agent to control pathogenic bacterial biofilm formation. Microb Pathog 2017; 109:214-220. [DOI: 10.1016/j.micpath.2017.05.046] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 05/01/2017] [Accepted: 05/30/2017] [Indexed: 12/30/2022]
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80
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Yang X, Li L, Duan Y, Yang X. Antioxidant activity of JM113 in vitro and its protective effect on broiler chickens challenged with deoxynivalenol. J Anim Sci 2017; 95:837-846. [PMID: 28380583 DOI: 10.2527/jas.2016.0789] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The aim of this experiment was to study the antioxidant capacity of JM113 isolated from healthy intestinal contents of Tibetan chicken and its protective effect on broiler chickens challenged with deoxynivalenol (DON). Compared with PZ01 and M23, JM113 demonstrated maximum reducing ( < 0.05) activity and resistance in the presence of 1.2 mmol/L hydrogen peroxide, and great scavenging ability ( < 0.05) against hydroxyl, superoxide anion, and 1,1-diphenyl-2-picrylhydrazyl radicals in vitro. For each strain, the antioxidant activities of live bacterial strains were greater ( < 0.05) than of cell free extracts and dead bacterial strains. To examine the antioxidant capacity of JM113 in vivo, 192 1-d-old Arbor Acres chicks were randomly divided into 4 treatments groups consisting of 6 replicates with 8 birds per replicate. The dietary treatments were 1) control; 2) control diet supplemented with JM113 at 1 × 10 cfu/kg; 3) control diet contaminated with DON at 10 mg/kg; 4) control diet contaminated with DON at 10 mg/kg and supplemented with JM113 at 1 × 10 cfu/kg. Dietary supplementation with DON decreased ( < 0.05) superoxide dismutase activity in serum and increased ( < 0.05) malondialdehyde in the jejunal mucosa of broilers, compared to the control. However, supplementation with JM113 to both the DON-contaminated diet and the control diet, caused a significant reduction ( < 0.05) in malondialdehyde activity in the jejunal mucosa. A reduction ( < 0.05) in expression of nuclear factor erythroid 2-related factor 2 was observed in the jejunal mucosa of broilers fed dietary supplementation with DON, whereas the mRNA levels of and its corresponding downstream gene increased ( < 0.05) with JM113 treatment. Addition of JM113 resulted in longer villi ( < 0.05), even in combination with DON compared to the DON group. JM113 treatment, especially in the DON plus JM113 group, up-regulated ( < 0.05) the expression of mRNA. In conclusion, the present study demonstrates that the JM113 strain has great antioxidant activity and supplementation in feed protected the integrity of the intestinal barrier in broilers challenged with DON, suggesting its use for alleviation of negative effects of DON in poultry.
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81
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Recent advances in endophytic exopolysaccharides: Production, structural characterization, physiological role and biological activity. Carbohydr Polym 2017; 157:1113-1124. [DOI: 10.1016/j.carbpol.2016.10.084] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 10/24/2016] [Accepted: 10/27/2016] [Indexed: 01/08/2023]
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82
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Di T, Chen G, Sun Y, Ou S, Zeng X, Ye H. Antioxidant and immunostimulating activities in vitro of sulfated polysaccharides isolated from Gracilaria rubra. J Funct Foods 2017. [DOI: 10.1016/j.jff.2016.11.005] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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83
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Taran M, Etemadi S, Safaei M. Microbial levan biopolymer production and its use for the synthesis of an antibacterial iron(II,III) oxide-levan nanocomposite. J Appl Polym Sci 2016. [DOI: 10.1002/app.44613] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Mojtaba Taran
- Department of Nanobiotechnology, Faculty of Science; Razi University; Kermanshah Iran
- Laboratory of Microbiology, Department of Biology, Faculty of Science; Razi University; Kermanshah Iran
| | - Saba Etemadi
- Laboratory of Microbiology, Department of Biology, Faculty of Science; Razi University; Kermanshah Iran
| | - Mohsen Safaei
- Department of Nanobiotechnology, Faculty of Science; Razi University; Kermanshah Iran
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Imran MYM, Reehana N, Jayaraj KA, Ahamed AAP, Dhanasekaran D, Thajuddin N, Alharbi NS, Muralitharan G. Statistical optimization of exopolysaccharide production by Lactobacillus plantarum NTMI05 and NTMI20. Int J Biol Macromol 2016; 93:731-745. [PMID: 27601132 DOI: 10.1016/j.ijbiomac.2016.09.007] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 08/31/2016] [Accepted: 09/02/2016] [Indexed: 10/21/2022]
Abstract
In this study, 27 strains of Lactic acid bacteria (LAB) were isolated and identified from different milk sources. All the isolates were biochemically characterized and screened for their ability to produce exopolysaccharides (EPS), among which two isolates namely Lactobacillus plantarum NTMI05 (197mg/L) and Lactobacillus plantarum NTMI20 (187mg/L) showed higher EPS production. Both the isolates were molecular characterized and tested for their probiotic properties. The chemical composition of EPS from L. plantarum NTMI05 and NTMI20 revealed the presence of 95.45% and 92.35% carbohydrates, 14±0.1and 11±0.15mg/L lactic acid, 10.5±0.2 and 9±0.1mg/mL of reducing sugar, respectively. HPLC analysis showed galactose at the retention time of 2.29.The maximum EPS yield was optimized for the media components like glucose (20g/L), yeast extract (25g/L) and ammonium sulphate (2g/L) using Central Composite Design and Response Surface Methodology (RSM). Under optimum conditions the predicted maximum EPS production was 0.891g/L, 0.797g/L, while the actual experimental value was 0.956g/L and 0.827g/L for L. plantarum NTMI05 and NTMI20, respectively. The antioxidant capacity was also evaluated by DPPH and reducing power assay proving the potentiality of these organisms in food and dairy industries.
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Affiliation(s)
- Mohamed Yousuff Mohamed Imran
- Department of Microbiology, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India
| | - Nazar Reehana
- Department of Microbiology, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India; P.G. and Research Department of Microbiology, Jamal Mohamed College (Autonomous), Tiruchirappalli 620 020, Tamilnadu, India
| | - K Arumugam Jayaraj
- Department of Microbiology, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India
| | - Abdul Azees Parveez Ahamed
- Department of Microbiology, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India
| | - Dharmadurai Dhanasekaran
- Department of Microbiology, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India
| | - Nooruddin Thajuddin
- Department of Microbiology, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India; Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Naiyf S Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Gangatharan Muralitharan
- Department of Microbiology, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India.
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Rütering M, Schmid J, Rühmann B, Schilling M, Sieber V. Controlled production of polysaccharides–exploiting nutrient supply for levan and heteropolysaccharide formation in Paenibacillus sp. Carbohydr Polym 2016; 148:326-34. [DOI: 10.1016/j.carbpol.2016.04.074] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 04/15/2016] [Accepted: 04/16/2016] [Indexed: 12/31/2022]
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86
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Öner ET, Hernández L, Combie J. Review of Levan polysaccharide: From a century of past experiences to future prospects. Biotechnol Adv 2016; 34:827-844. [DOI: 10.1016/j.biotechadv.2016.05.002] [Citation(s) in RCA: 203] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 05/01/2016] [Accepted: 05/04/2016] [Indexed: 01/24/2023]
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87
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Liu Y, Nan L, Liu J, Yan H, Zhang D, Han X. Isolation and identification of resveratrol-producing endophytes from wine grape Cabernet Sauvignon. SPRINGERPLUS 2016; 5:1029. [PMID: 27441148 PMCID: PMC4938804 DOI: 10.1186/s40064-016-2571-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Accepted: 06/14/2016] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Obtain endophyte strains with effective resveratrol production from superior grapevine variety Cabernet Sauvignon in Xinjiang and determine related taxonomic position of the strain. RESULTS Seventy-three strains of endophytes, including 23 strains of bacteria, 14 ones of actinomycetes, 24 fungus and 12 yeasts, were isolated, respectively. The distribution law of endophytes was spring (30.14 %) = summer (30.14 %) < autumn (39.73 %) in different seasons, while the fruit (12.33 %) < leaf (20.55 %) < stem (32.88 %) < root (34.25 %) in different tissues and organs. From the 36 strains of endophytic fungi isolated, seven strains producing polyphenols were screened by ferric chloride-potassium ferricyanide color reaction. C2J6, stable genetic properties producing highly 1.48 mg L(-1) of resveratrol, was identified as Aspergillus niger by 26S rDNA-ITS sequence analysis after thin-layer chromatography sieve analysis, ultra violet wavelength scanning and high performance liquid chromatography, respectively. CONCLUSIONS There were the certain number and kinds of endophytes in the various tissues of Cabernet Sauvignon, which, to a certain extent, reflected the biological diversity of plant endophytes. The fact that the fungus C2J6 producing resveratrol in grape was acquired attested the special ability of the endophytes to produce the same or similar bioactive substances as the host plants.
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Affiliation(s)
- Ya Liu
- />College of Food, Shihezi University, Shihezi, 832000 People’s Republic of China
| | - Lijun Nan
- />College of Food, Shihezi University, Shihezi, 832000 People’s Republic of China
| | - Junchao Liu
- />College of Food, Shihezi University, Shihezi, 832000 People’s Republic of China
| | - Haiyan Yan
- />College of Food, Shihezi University, Shihezi, 832000 People’s Republic of China
| | - Dianpeng Zhang
- />Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 People’s Republic of China
| | - Xinnian Han
- />Institute of Crops, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi, 832000 People’s Republic of China
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88
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Production, purification and structural study of an exopolysaccharide from Lactobacillus plantarum BC-25. Carbohydr Polym 2016; 144:205-14. [DOI: 10.1016/j.carbpol.2016.02.067] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 02/21/2016] [Accepted: 02/22/2016] [Indexed: 12/13/2022]
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89
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Hassan AI, Ghoneim MAM, Mahmoud MG, Asker MMS, Mohamed SS. Efficacy of polysaccharide from Alcaligenes xylosoxidans MSA3 administration as protection against γ-radiation in female rats. JOURNAL OF RADIATION RESEARCH 2016; 57:189-200. [PMID: 26712796 PMCID: PMC4795946 DOI: 10.1093/jrr/rrv075] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 08/27/2015] [Accepted: 09/04/2015] [Indexed: 06/05/2023]
Abstract
Damage to normal tissues is a consequence of both therapeutic and accidental exposures to ionizing radiation. A water-soluble heteropolysaccharide called AXEPS, composed of glucose, galactose, rhamnose and glucouronic acid in a molar ratio of nearly 1.0:1.6:0.4:2.3, respectively, was isolated from culture medium of strain Alcaligenes xylosoxidans MSA3 by ethanol precipitation followed by freeze-drying. Chemical analysis, Fourier-transform infrared (FTIR) and chromatographic studies revealed that the molecular weight was 1.6 × 10(4) g mol(-1). This study was designed to investigate the radioprotective and biological effects of AXEPS in alleviating the toxicity of ionizing radiation in female albino rats. A total of 32 female albino rats were divided into four groups. In the control group, rats were administered vehicle by tube for four weeks. The second group was administered AXEPS (100 mg/kg) orally by gavage for four weeks. Animals in the third group were exposed to whole-body γ-rays (5 Gy) and remained for 2 weeks without treatment. The fourth group received AXEPS (100 mg/kg) orally by gavage for two weeks before being exposed to whole-body γ-rays (5 Gy), then 24 h post γ-rays, they received AXEPS (100 mg/kg) in a treatment continuing till the end of the experiment (15 days after the whole-body γ-irradiation). Oral administration of AXEPS (100 mg/kg) significantly reversed the oxidative stress effects of radiation, as evidenced by the decrease in DNA damage in the bone marrow. Assessment of apoptosis and cell proliferation markers revealed that caspase-3 significantly increased in the irradiated group. Moreover, a significant decrease in the hematological constituents of peripheral blood, the chemotactic index and CD8+ T cells were observed in animals in the irradiation-only group, whereas an increase in the lymphocyte index was observed in animals in that group. In contrast, AXEPS treatment prevented these alterations. From our results, we conclude that AXEPS is a potent antioxidant and treatment agent for protection from γ-rays.
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Affiliation(s)
- Amal I Hassan
- Department of Radioisotopes, Nuclear Research Centre, Atomic Energy Authority, Egypt
| | - Mona A M Ghoneim
- Department of Radioisotopes, Nuclear Research Centre, Atomic Energy Authority, Egypt
| | - Manal G Mahmoud
- Microbial Biotechnology Department, National Research Centre, 33 Bohouth Street, Dokki, Giza, 12311, Egypt
| | - Mohsen M S Asker
- Microbial Biotechnology Department, National Research Centre, 33 Bohouth Street, Dokki, Giza, 12311, Egypt
| | - Saher S Mohamed
- Microbial Biotechnology Department, National Research Centre, 33 Bohouth Street, Dokki, Giza, 12311, Egypt
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90
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Liang TW, Tseng SC, Wang SL. Production and Characterization of Antioxidant Properties of Exopolysaccharide(s) from Peanibacillus mucilaginosus TKU032. Mar Drugs 2016; 14:md14020040. [PMID: 26907304 PMCID: PMC4771993 DOI: 10.3390/md14020040] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 01/29/2016] [Accepted: 02/02/2016] [Indexed: 11/30/2022] Open
Abstract
Natural polysaccharides have received much attention due to their wide range of applications. Although most microbial exopolysaccharides (EPSs) use sugars as the major carbon source, such as glucose or sucrose, in this study, EPSs were induced from a squid pen powder (SPP)-containing medium by Paenibacillus mucilaginosus TKU032, a bacterial strain isolated from Taiwanese soil. Under the optimal culture conditions, the maximum EPS yield (14.8 g/L) was obtained. MALDI-TOF MS analysis of an EPS fraction purified by gel filtration revealed two mass peaks with molecular weights of ∼1.05 × 104 and ∼1.35 × 104 Da, respectively. The analysis of the hydrolysates of TKU032 EPS with cellulase, pectinase or α-amylase indicated that the glycosidic bond of TKU032 EPS is most likely an α-1,4 glycosidic bond and the hydrolysates are similar to those of starch. In addition, the purified EPS demonstrated strong antioxidant abilities.
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Affiliation(s)
- Tzu-Wen Liang
- Life Science Development Center, Tamkang University, No. 151, Yingchuan Rd., Tamsui, New Taipei City 25137, Taiwan.
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan.
| | - Shih-Chun Tseng
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan.
| | - San-Lang Wang
- Life Science Development Center, Tamkang University, No. 151, Yingchuan Rd., Tamsui, New Taipei City 25137, Taiwan.
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan.
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91
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Xu X, Gao C, Liu Z, Wu J, Han J, Yan M, Wu Z. Characterization of the levan produced by Paenibacillus bovis sp. nov BD3526 and its immunological activity. Carbohydr Polym 2016; 144:178-86. [PMID: 27083807 DOI: 10.1016/j.carbpol.2016.02.049] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 02/14/2016] [Accepted: 02/16/2016] [Indexed: 11/27/2022]
Abstract
Paenibacillus bovis sp. nov BD3526 synthesizes a large amount of exopolysaccharides (EPSs) (36.25g/L) in a semi-defined chemical medium containing 20% (w/v) sucrose. The EPSs were extracted from the cultured broth by ethanol precipitation and purified via anion-exchange and gel permeation chromatography. The Fourier transform infrared (FT-IR) and nuclear magnetic resonance (NMR) spectra showed that the primary EPS fraction (F1) was a linear β (2→6)-linked levan. The peak molecular weight (Mp) of the levan exceeded 2.6×10(6)Da based on high-performance size-exclusion chromatography (HPSEC). The levan adopted a spherical conformation in aqueous solution as confirmed by transmission electron microscopy (TEM). The corresponding levansucrase was identified by SDS-PAGE analysis and in situ polymer synthesis. The in vitro assay demonstrated that the levan significantly stimulated the proliferation of spleen cells and induced the expression of TNF-α, indicating its potential as a natural immunomodulator.
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Affiliation(s)
- Xiaofen Xu
- State Key Laboratory of Dairy Biotechnology, Institute of Bright Dairy & Food Co., Ltd., 1518 West Jiangchang Road, Shanghai 200436, PR China; Innovative Platform for the Industry of Dairy Product, Synergetic Innovation Center of Food Safety and Nutrition, Shanghai, PR China
| | - Caixia Gao
- State Key Laboratory of Dairy Biotechnology, Institute of Bright Dairy & Food Co., Ltd., 1518 West Jiangchang Road, Shanghai 200436, PR China; Innovative Platform for the Industry of Dairy Product, Synergetic Innovation Center of Food Safety and Nutrition, Shanghai, PR China
| | - Zhenmin Liu
- State Key Laboratory of Dairy Biotechnology, Institute of Bright Dairy & Food Co., Ltd., 1518 West Jiangchang Road, Shanghai 200436, PR China; Innovative Platform for the Industry of Dairy Product, Synergetic Innovation Center of Food Safety and Nutrition, Shanghai, PR China
| | - Jiang Wu
- State Key Laboratory of Dairy Biotechnology, Institute of Bright Dairy & Food Co., Ltd., 1518 West Jiangchang Road, Shanghai 200436, PR China; Innovative Platform for the Industry of Dairy Product, Synergetic Innovation Center of Food Safety and Nutrition, Shanghai, PR China
| | - Jin Han
- State Key Laboratory of Dairy Biotechnology, Institute of Bright Dairy & Food Co., Ltd., 1518 West Jiangchang Road, Shanghai 200436, PR China; Innovative Platform for the Industry of Dairy Product, Synergetic Innovation Center of Food Safety and Nutrition, Shanghai, PR China
| | - Minghui Yan
- State Key Laboratory of Dairy Biotechnology, Institute of Bright Dairy & Food Co., Ltd., 1518 West Jiangchang Road, Shanghai 200436, PR China; Innovative Platform for the Industry of Dairy Product, Synergetic Innovation Center of Food Safety and Nutrition, Shanghai, PR China
| | - Zhengjun Wu
- State Key Laboratory of Dairy Biotechnology, Institute of Bright Dairy & Food Co., Ltd., 1518 West Jiangchang Road, Shanghai 200436, PR China; Innovative Platform for the Industry of Dairy Product, Synergetic Innovation Center of Food Safety and Nutrition, Shanghai, PR China.
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92
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Zheng LP, Zou T, Ma YJ, Wang JW, Zhang YQ. Antioxidant and DNA Damage Protecting Activity of Exopolysaccharides from the Endophytic Bacterium Bacillus cereus SZ1. Molecules 2016; 21:E174. [PMID: 26861269 PMCID: PMC6273749 DOI: 10.3390/molecules21020174] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Revised: 01/25/2016] [Accepted: 01/27/2016] [Indexed: 12/19/2022] Open
Abstract
An endophytic bacterium was isolated from the Chinese medicinal plant Artemisia annua L. The phylogenetic and physiological characterization indicated that the isolate, strain SZ-1, was Bacillus cereus. The endophyte could produce an exopolysaccharide (EPS) at 46 mg/L. The 1,1-diphenyl-2-picrylhydracyl (DPPH) radical scavenging activity of the EPS reached more than 50% at 3-5 mg/mL. The EPS was also effective in scavenging superoxide radical in a concentration dependent fashion with an EC50 value of 2.6 mg/mL. The corresponding EC50 for scavenging hydroxyl radical was 3.1 mg/mL. Moreover, phenanthroline-copper complex-mediated chemiluminescent emission of DNA damage was both inhibited and delayed by EPS. The EPS at 0.7-1.7 mg/mL also protected supercoiled DNA strands in plasmid pBR322 against scission induced by Fenton-mediated hydroxyl radical. The preincubation of PC12 cells with the EPS prior to H₂O₂ exposure increased the cell survival and glutathione (GSH) level and catalase (CAT) activities, and decreased the level of malondialdehyde (MDA) and lactate dehydrogenase (LDH) activity in a dose-dependent manner, suggesting a pronounced protective effect against H₂O₂-induced cytotoxicity. Our study indicated that the EPS could be useful for preventing oxidative DNA damage and cellular oxidation in pharmaceutical and food industries.
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Affiliation(s)
- Li Ping Zheng
- Department of Horticulture, School of Architecture, Soochow University, Suzhou 215123, China.
| | - Tin Zou
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China.
| | - Yan Jun Ma
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China.
| | - Jian Wen Wang
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China.
| | - Yu Qing Zhang
- School of Biology & Basic Medical Sciences, Soochow University, Suzhou 215123, China.
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93
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Biosynthesis of selenium rich exopolysaccharide (Se-EPS) by Pseudomonas PT-8 and characterization of its antioxidant activities. Carbohydr Polym 2016; 142:230-9. [PMID: 26917395 DOI: 10.1016/j.carbpol.2016.01.058] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 01/14/2016] [Accepted: 01/25/2016] [Indexed: 02/06/2023]
Abstract
Biosynthesis of organo-selenium is achieved by submerged fermentation of selenium-tolerant Pseudomonas PT-8. The end product of metabolic process is selenium-bearing exopolysaccharide (Se-EPS), which contains a higher content of uronic acid than the exopolysaccharide (EPS) by the strain without selenium in the culture medium. Selenium content in Se-EPS reached a maximum yield of 256.7 mg/kg when using an optimized culture condition. Crude Se-EPS was purified into two fractions-a pH neutral Se-EPS-1 and an acidic Se-EPS-2. Structure and chemical composition of Se-EPS-2 were investigated by chromatographic analyses. Results showed that Se-EPS-2 was a homogenous polysaccharide with molecular weight of 7.3 kDa, consisting of monosaccharides, rhamnose, arabinose, xylose, mannose, glucose and galactose with a molar ratio of 19.58:19.28:5.97:18.99:23.70:12.48, respectively. Compared to the EPS, the content of rhamnose in Se-EPS increased and molecular weight decreased. The Se-EPS had strong scavenging actions on DPPH•, •OH and •O2(-), which is much higher than the EPS.
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94
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Akinsanya MA, Goh JK, Lim SP, Ting ASY. Metagenomics study of endophytic bacteria in Aloe vera using next-generation technology. GENOMICS DATA 2015; 6:159-63. [PMID: 26697361 PMCID: PMC4664749 DOI: 10.1016/j.gdata.2015.09.004] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Revised: 08/19/2015] [Accepted: 09/04/2015] [Indexed: 11/27/2022]
Abstract
Next generation sequencing (NGS) enables rapid analysis of the composition and diversity of microbial communities in several habitats. We applied the high throughput techniques of NGS to the metagenomics study of endophytic bacteria in Aloe vera plant, by assessing its PCR amplicon of 16S rDNA sequences (V3–V4 regions) with the Illumina metagenomics technique used to generate a total of 5,199,102 reads from the samples. The analyses revealed Proteobacteria, Firmicutes, Actinobacteria and Bacteriodetes as the predominant genera. The roots have the largest composition with 23% not present in other tissues. The stems have more of the genus—Pseudomonas and the unclassified Pseudomonadaceae. The α-diversity analysis indicated the richness and inverse Simpson diversity index of the bacterial endophyte communities for the leaf, root and stem tissues to be 2.221, 6.603 and 1.491 respectively. In a similar study on culturable endophytic bacteria in the same A. vera plants (unpublished work), the dominance of Pseudomonas and Bacillus genera was similar, with equal proportion of four species each in root, stem and leaf tissues. It is evident that NGS technology captured effectively the metagenomics of microbiota in plant tissues and this can improve our understanding of the microbial–plant host interactions.
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Affiliation(s)
- Mushafau Adewale Akinsanya
- School of Science, Monash University Malaysia, 46150 Bandar Sunway, Selangor, Malaysia ; Department of Medical Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, Lagos State University, P.M.B 21266 Ikeja, Lagos, Nigeria
| | - Joo Kheng Goh
- School of Science, Monash University Malaysia, 46150 Bandar Sunway, Selangor, Malaysia
| | - Siew Ping Lim
- School of Science, Monash University Malaysia, 46150 Bandar Sunway, Selangor, Malaysia
| | - Adeline Su Yien Ting
- School of Science, Monash University Malaysia, 46150 Bandar Sunway, Selangor, Malaysia
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95
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Ramasubburayan R, Sumathi S, Magi Bercy D, Immanuel G, Palavesam A. Antimicrobial, antioxidant and anticancer activities of mangrove associated bacterium Bacillus subtilis subsp. subtilis RG. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2015. [DOI: 10.1016/j.bcab.2015.01.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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96
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Recent advances in exopolysaccharides from Paenibacillus spp.: production, isolation, structure, and bioactivities. Mar Drugs 2015; 13:1847-63. [PMID: 25837984 PMCID: PMC4413190 DOI: 10.3390/md13041847] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 03/23/2015] [Accepted: 03/25/2015] [Indexed: 12/02/2022] Open
Abstract
This review provides a comprehensive summary of the most recent developments of various aspects (i.e., production, purification, structure, and bioactivity) of the exopolysaccharides (EPSs) from Paenibacillus spp. For the production, in particular, squid pen waste was first utilized successfully to produce a high yield of inexpensive EPSs from Paenibacillus sp. TKU023 and P. macerans TKU029. In addition, this technology for EPS production is prevailing because it is more environmentally friendly. The Paenibacillus spp. EPSs reported from various references constitute a structurally diverse class of biological macromolecules with different applications in the broad fields of pharmacy, cosmetics and bioremediation. The EPS produced by P. macerans TKU029 can increase in vivo skin hydration and may be a new source of natural moisturizers with potential value in cosmetics. However, the relationships between the structures and activities of these EPSs in many studies are not well established. The contents and data in this review will serve as useful references for further investigation, production, structure and application of Paenibacillus spp. EPSs in various fields.
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97
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Kekez BD, Gojgic-Cvijovic GD, Jakovljevic DM, Stefanovic Kojic JR, Markovic MD, Beskoski VP, Vrvic MM. High levan production by Bacillus licheniformis NS032 using ammonium chloride as the sole nitrogen source. Appl Biochem Biotechnol 2015; 175:3068-83. [PMID: 25592434 DOI: 10.1007/s12010-015-1475-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 01/01/2015] [Indexed: 11/30/2022]
Abstract
In this study, levan production by Bacillus licheniformis NS032 isolated from a petroleum sludge sample was investigated. High levan yield was obtained in a wide range of sucrose concentrations (up to 400 g/L) and, contrary to most levan-producing strains, using ammonium chloride as the sole N source. Interaction between sucrose, ammonium chloride, and initial pH of the medium in a low sucrose (60-200 g/L) and a high sucrose (300-400 g/L) system was analyzed by response surface methodology. According to the calculated model in the low sucrose system, maximum predicted levan yield was 47.8 g/L (sucrose 196.8 g/L, ammonium chloride 2.4 g/L, pH 7.0), while in the high sucrose system, levan yield was 99.2 g/L (sucrose 397.6 g/L, ammonium chloride 4.6 g/L, pH 7.4). In addition, protective effect of microbial levan against copper toxicity to Daphnia magna is observed for the first time. The acute toxicity (48 h EC50) of copper decreased from 0.14 to 0.44 mg/L by levan in concentration of 50 ppm.
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Affiliation(s)
- B D Kekez
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, P.O. Box 51, Belgrade, 11000, Serbia
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98
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Liu J, Wen XY, Zhang XQ, Pu HM, Kan J, Jin CH. Extraction, characterization and in vitro antioxidant activity of polysaccharides from black soybean. Int J Biol Macromol 2015; 72:1182-90. [PMID: 25256548 DOI: 10.1016/j.ijbiomac.2014.08.058] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 08/27/2014] [Accepted: 08/28/2014] [Indexed: 11/21/2022]
Abstract
Optimization of extraction conditions, preliminary characterization and in vitro antioxidant activity of polysaccharides from black soybean (BSPS) were investigated. The results of Box-Behnken design showed that the optimal extraction conditions for BSPS were as follows: ratio of water to material of 20 ml/g, extraction time of 6.4h and extraction temperature of 92 °C, with a corresponding yield of 2.56%. The crude BSPS were further fractionated on DEAE-52 and Sepharose CL-4B chromatography to afford three purified fractions (BSPS-1, BSPS-2 and BSPS-3). Chemical analysis showed that the three purified fractions were mainly composed of carbohydrate and uronic acid. In addition, BSPS-1 was composed of arabinose, rhamnose, galactose, glucose and mannose in the molar ratio of 1.79:1.00:2.59:26.54:1.01. BSPS-2 was composed of arabinose, rhamnose, xylose, galactose and mannose in the molar ratio of 8.10:4.80:9.15:13.38:1.00. BSPS-3 was composed of arabinose, rhamnose, galactose and mannose in the molar ratio of 16.80:3.60:33.66:1.00. The results of Fourier transform-infrared spectroscopy further confirmed the characteristic polysaccharide structures of the three purified fractions. Moreover, antioxidant assays showed crude BSPS and its purified fractions had potential superoxide anion and DPPH radical scavenging activities, and their antioxidant activity decreased in the order of crude BSPS > BSPS-3 > BSPS-2 > BSPS-1.
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Affiliation(s)
- Jun Liu
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China.
| | - Xiao-yuan Wen
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Xue-qing Zhang
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Hui-min Pu
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Juan Kan
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Chang-hai Jin
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
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99
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Li W, Ji J, Rui X, Yu J, Tang W, Chen X, Jiang M, Dong M. Production of exopolysaccharides by Lactobacillus helveticus MB2-1 and its functional characteristics in vitro. Lebensm Wiss Technol 2014. [DOI: 10.1016/j.lwt.2014.06.063] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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100
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Jeganathan A, Ramamoorthy S, Thillaichidambaram M. Optimization of extracellular polysaccharide production in Halobacillus trueperi AJSK using response surface methodology. ACTA ACUST UNITED AC 2014. [DOI: 10.5897/ajb2014.14109] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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