101
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Liang TW, Wu CC, Cheng WT, Chen YC, Wang CL, Wang IL, Wang SL. Exopolysaccharides and antimicrobial biosurfactants produced by Paenibacillus macerans TKU029. Appl Biochem Biotechnol 2014; 172:933-50. [PMID: 24122708 PMCID: PMC3918387 DOI: 10.1007/s12010-013-0568-5] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 09/30/2013] [Indexed: 11/24/2022]
Abstract
Paenibacillus macerans TKU029 can produce exopolysaccharides (EPSs; 3.46 g/L) and a biosurfactant (1.78 g/L) in a medium with 2 % (w/v) squid pen powder as the sole carbon/nitrogen source. The biosurfactant can reduce the surface tension of water from 72.30 to 35.34 mN/m at a concentration of 2.76 g/L and reach an emulsification index of 56 % after a 24-h reaction with machine oil. This biosurfactant is stable at 121 °C for 20 min, over a pH range from 3 to 11, and in <5 % salt solutions. It also shows significant antimicrobial activity, which remains active after treatment at 121 °C and at pH values from 4 to 10, against Escherichia coli BCRC13086, Staphylococcus aureus BCRC10780, Fusarium oxysporum BCRC32121 and Aspergillus fumigatus BCRC30099. Furthermore, human skin shows from 37.3 to 44.3 % hydration after being treated with TKU029 EPSs for 180 min. These results imply that EPSs and the biosurfactant from this strain have potential in cosmetics, for removal of oil contamination, and as antimicrobial agents.
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Affiliation(s)
- Tzu-Wen Liang
- Life Science Development Center, Tamkang University, New Taipei City, 25137 Taiwan
- Department of Chemistry, Tamkang University, New Taipei City, 25137 Taiwan
| | - Chia-Chen Wu
- Department of Chemistry, Tamkang University, New Taipei City, 25137 Taiwan
| | - Wei-Ting Cheng
- Department of Chemistry, Tamkang University, New Taipei City, 25137 Taiwan
| | - Yu-Chi Chen
- Department of Cosmetic Science, Vanung University, Chung-Li, 320 Taiwan
| | - Chuan-Lu Wang
- Department of Cosmetic Science and Application, Lan-Yang Institute of Technology, I-Lan, 261 Taiwan
| | - I-Li Wang
- Department of Chemical and Materials Engineering, Tamkang University, New Taipei City, 25137 Taiwan
| | - San-Lang Wang
- Life Science Development Center, Tamkang University, New Taipei City, 25137 Taiwan
- Department of Chemistry, Tamkang University, New Taipei City, 25137 Taiwan
- No. 151, Yingchuan Rd., Tamsui Dist., New Taipei City, 25137 Taiwan
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102
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Xie M, Hu B, Wang Y, Zeng X. Grafting of gallic acid onto chitosan enhances antioxidant activities and alters rheological properties of the copolymer. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:9128-36. [PMID: 25198516 DOI: 10.1021/jf503207s] [Citation(s) in RCA: 231] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A new, simple, and effective method to graft gallic acid (GA) onto chitosan (CS) in aqueous solution in the presence of carbodiimide and hydroxybenzotriazole was developed. The grafting amount of GA reached as much as 209.9 mg/g of copolymer, which appears as the highest one among the reported literature, and the grafting degree of GA to CS was adjustable with modulation of the mass ratio of GA to CS. The covalent insertion of GA onto the polymeric backbones was confirmed by UV-vis and (1)H NMR analyses. Grafting endowed the resulting copolymer GA-grafted-CS (GA-g-CS) with both the advantages of CS and GA. The antioxidant capacity of GA-g-CS was much higher than that of the plain CS examined by assays of DPPH, superoxide, and ABTS radicals scavenging activities, reducing power, chelating power, inhibition of lipid peroxidation, ferric reducing antioxidant potential, and β-carotene-linoleic acid assays. Particularly, GA-g-CS showed significantly higher antioxidant activity than GA in β-carotene-linoleic acid assay. Furthermore, the viscosity of GA-g-CS was significantly higher than that of CS. The present study developed a novel approach to synthesize GA-g-CS that could be a potential biomaterial in food industries.
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Affiliation(s)
- Minhao Xie
- College of Food Science and Technology, Nanjing Agricultural University , Nanjing 210095, China
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103
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Xiong Q, Li X, Zhou R, Hao H, Li S, Jing Y, Zhu C, Zhang Q, Shi Y. Extraction, characterization and antioxidant activities of polysaccharides from E. corneum gigeriae galli. Carbohydr Polym 2014; 108:247-56. [DOI: 10.1016/j.carbpol.2014.02.068] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Revised: 02/14/2014] [Accepted: 02/23/2014] [Indexed: 10/25/2022]
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104
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Antioxidant Lactobacilli Could Protect Gingival Fibroblasts Against Hydrogen Peroxide: A Preliminary In Vitro Study. Probiotics Antimicrob Proteins 2014; 6:157-64. [DOI: 10.1007/s12602-014-9165-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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105
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Structural characterization and bioactivity of released exopolysaccharides from Lactobacillus plantarum 70810. Int J Biol Macromol 2014; 67:71-8. [DOI: 10.1016/j.ijbiomac.2014.02.056] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 02/19/2014] [Accepted: 02/24/2014] [Indexed: 11/18/2022]
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106
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Li W, Ji J, Tang W, Rui X, Chen X, Jiang M, Dong M. Characterization of an antiproliferative exopolysaccharide (LHEPS-2) from Lactobacillus helveticus MB2-1. Carbohydr Polym 2014; 105:334-40. [DOI: 10.1016/j.carbpol.2014.01.093] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 01/24/2014] [Accepted: 01/28/2014] [Indexed: 10/25/2022]
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107
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Antioxidant and antitumor activities of β-glucan-rich exopolysaccharides with different molecular weight from Paenibacillus polymyxa JB115. ACTA ACUST UNITED AC 2014. [DOI: 10.1007/s13765-013-4252-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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108
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Li W, Ji J, Chen X, Jiang M, Rui X, Dong M. Structural elucidation and antioxidant activities of exopolysaccharides from Lactobacillus helveticus MB2-1. Carbohydr Polym 2014; 102:351-9. [DOI: 10.1016/j.carbpol.2013.11.053] [Citation(s) in RCA: 166] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 10/30/2013] [Accepted: 11/27/2013] [Indexed: 01/01/2023]
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109
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Abstract
Continuous free radical assault upsets cellular homeostasis and dysregulates associated signaling pathways to promote stress-induced cell death. In spite of the continuous development and implementation of effective therapeutic strategies, limitations in treatments for stress-induced toxicities remain. The purpose of the present study was to determine the potential therapeutic efficacy of bacterial fucose polysaccharides against hydrogen peroxide (H2O2)-induced stress in human lung fibroblast (WI38) cells and to understand the associated molecular mechanisms. In two different fermentation processes, Bacillus megaterium RB-05 biosynthesized two non-identical fucose polysaccharides; of these, the polysaccharide having a high-fucose content (∼42%) conferred the maximum free radical scavenging efficiency in vitro. Structural characterizations of the purified polysaccharides were performed using HPLC, GC-MS, and 1H/13C/2D-COSY NMR. H2O2 (300 µM) insult to WI38 cells showed anti-proliferative effects by inducing intracellular reactive oxygen species (ROS) and by disrupting mitochondrial membrane permeability, followed by apoptosis. The polysaccharide (250 µg/mL) attenuated the cell death process by directly scavenging intracellular ROS rather than activating endogenous antioxidant enzymes. This process encompasses inhibition of caspase-9/3/7, a decrease in the ratio of Bax/Bcl2, relocalization of translocated Bax and cytochrome c, upregulation of anti-apoptotic members of the Bcl2 family and a decrease in the phosphorylation of MAPKs (mitogen activated protein kinases). Furthermore, cellular homeostasis was re-established via stabilization of MAPK-mediated Nrf2/Keap1 signaling and transcription of downstream cytoprotective genes. This molecular study uniquely introduces a fucose-rich bacterial polysaccharide as a potential inhibitor of H2O2-induced stress and toxicities.
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110
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Optimization of antioxidant exopolysaccharidess production by Bacillus licheniformis in solid state fermentation. Carbohydr Polym 2013; 98:1377-82. [DOI: 10.1016/j.carbpol.2013.07.076] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Accepted: 07/29/2013] [Indexed: 10/26/2022]
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111
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Jiang C, Jiao Y, Chen X, Li X, Yan W, Yu B, Xiong Q. Preliminary characterization and potential hepatoprotective effect of polysaccharides from Cipangopaludina chinensis. Food Chem Toxicol 2013; 59:18-25. [DOI: 10.1016/j.fct.2013.05.036] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 05/10/2013] [Accepted: 05/22/2013] [Indexed: 12/22/2022]
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112
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Li JY, Jin MM, Meng J, Gao SM, Lu RR. Exopolysaccharide from Lactobacillus planterum LP6: antioxidation and the effect on oxidative stress. Carbohydr Polym 2013; 98:1147-52. [PMID: 23987456 DOI: 10.1016/j.carbpol.2013.07.027] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Revised: 06/10/2013] [Accepted: 07/10/2013] [Indexed: 10/26/2022]
Abstract
An exopolysaccharide (EPS-3) was isolated from the culture of Lactobacillus planterum LP6 and purified by ion exchange and gel chromatography. The concentrations required to scavenge 50% of the initial radical for DPPH·, OH· and O2(·-) radicals were 1.38, 3.43 and 0.11 mg/mL, respectively. The reducing power (A700 nm) was 0.632 at 5mg/mL. The cell viability of PC12 was improved by 21.67% at 200 μg/mL of EPS-3. Compared with the H2O2 group, the total-antioxidant capacity, activities of superoxide dismutase and catalase were enhanced by 65.81%, 41.34% and 59.05%, respectively. Meanwhile, the level of malondialdehyde and lactate dehydrogenase were decreased by 52.80% and 30.24%. The result indicated that EPS-3 had a notable protective effect against oxidative damage on PC12 cells. The study might lay a theoretical foundation for the comprehensive utilization of lactic acid bacteria source which could result in its application in food systems.
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Affiliation(s)
- Jing-Yan Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, PR China
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113
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Immunostimulatory activity and structure of polysaccharide from Streptococcus equi subsp. zooepidemicus. Int J Biol Macromol 2013; 57:218-25. [DOI: 10.1016/j.ijbiomac.2013.03.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Revised: 01/21/2013] [Accepted: 03/09/2013] [Indexed: 11/18/2022]
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114
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Manivasagan P, Sivasankar P, Venkatesan J, Senthilkumar K, Sivakumar K, Kim SK. Production and characterization of an extracellular polysaccharide from Streptomyces violaceus MM72. Int J Biol Macromol 2013; 59:29-38. [PMID: 23597709 DOI: 10.1016/j.ijbiomac.2013.04.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 03/19/2013] [Accepted: 04/07/2013] [Indexed: 11/25/2022]
Abstract
The isolation, optimization, purification and characterization of an extracellular polysaccharide (EPS) from a marine actinobacterium, Streptomyces violaceus MM72 were investigated. Medium composition and culture conditions for the EPS production by S. violaceus MM72 were optimized using two statistical methods: Plackett-Burman design applied to find the key ingredients and conditions for the best yield of EPS production and central composite design used to optimize the concentration of the three significant variables: glucose, tryptone and NaCl. The preferable culture conditions for EPS production were pH 7.0, temperature 35°C and NaCl concentration 2.0% for 120h with fructose and yeast extract as best carbon and nitrogen sources, respectively. The results showed that S. violaceus MM72 produced a kind of EPS having molecular weight of 8.96×10(5)Da. In addition, the EPS showed strong DPPH radical-scavenging activity, superoxide scavenging and metal chelating activities while moderate inhibition of lipid peroxidation and reducing activities determined in this study. These results showed the great potential of EPS produced by S. violaceus MM72 could be used in industry in place of synthetic compounds. The EPS from S. violaceus MM72 may be a new source of natural antioxidants with potential value for health, food and therapeutics.
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Affiliation(s)
- Panchanathan Manivasagan
- Marine Biotechnology Laboratory, Department of Chemistry and Marine Bioprocess Research Center, Pukyong National University, Busan 608-737, Republic of Korea.
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115
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Li O, Lu C, Liu A, Zhu L, Wang PM, Qian CD, Jiang XH, Wu XC. Optimization and characterization of polysaccharide-based bioflocculant produced by Paenibacillus elgii B69 and its application in wastewater treatment. BIORESOURCE TECHNOLOGY 2013; 134:87-93. [PMID: 23500564 DOI: 10.1016/j.biortech.2013.02.013] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 02/01/2013] [Accepted: 02/01/2013] [Indexed: 06/01/2023]
Abstract
The optimization, purification and characterization of bioflocculant produced by Paenibacillus elgii B69 were investigated. The bioflocculant was an exopolysaccharide composed of glucose, glucuronic acid, mannose and xylose. The maximum bioflocculant production was about 25.63 g/L achieved with sucrose at 51.35 g/L, peptone at 6.78 g/L and yeast extract at 0.47 g/L optimized by response-surface methodology. In addition, a series of experiments was performed to investigate the flocculation activities towards kaolin clay, dyeing pigment, heavy metal ion, and real wastewater and the result indicated the new bioflocculant had high activities towards all the tested pollutions. These results showed its great potential for water pretreatment used in industry.
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Affiliation(s)
- Ou Li
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou 310058, Zhejiang Province, PR China
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116
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Fang Y, Liu S, Lu M, Jiao Y, Wang S. A novel method for promoting antioxidant exopolysaccharidess production of Bacillus licheniformis. Carbohydr Polym 2013; 92:1172-6. [DOI: 10.1016/j.carbpol.2012.10.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2012] [Revised: 10/03/2012] [Accepted: 10/05/2012] [Indexed: 11/28/2022]
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117
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Kanmani P, Suganya K, kumar RS, Yuvaraj N, Pattukumar V, Paari KA, Arul V. Synthesis and Functional Characterization of Antibiofilm Exopolysaccharide Produced by Enterococcus faecium MC13 Isolated from the Gut of Fish. Appl Biochem Biotechnol 2013; 169:1001-15. [DOI: 10.1007/s12010-012-0074-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Accepted: 12/26/2012] [Indexed: 10/27/2022]
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118
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Antioxidant activity and potential hepatoprotective effect of polysaccharides from Cyclina sinensis. Carbohydr Polym 2013; 91:262-8. [DOI: 10.1016/j.carbpol.2012.08.029] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Revised: 08/02/2012] [Accepted: 08/09/2012] [Indexed: 11/20/2022]
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119
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Häßler T, Schieder D, Pfaller R, Faulstich M, Sieber V. Enhanced fed-batch fermentation of 2,3-butanediol by Paenibacillus polymyxa DSM 365. BIORESOURCE TECHNOLOGY 2012; 124:237-44. [PMID: 22989651 DOI: 10.1016/j.biortech.2012.08.047] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 08/10/2012] [Accepted: 08/11/2012] [Indexed: 05/08/2023]
Abstract
Fed-batch fermentations for the production of 2,3-butanediol (BDL) with Paenibacillus polymyxa DSM 365 were investigated in 2-L-fermenters. A suitable micro-aerobic set-up enabled high product selectivity of up to 98% R,R-BDL towards meso-BDL and acetoin. Up to 111 g L(-1)R,R-BDL within 54 h could be achieved with sufficient supply of complex medium (yeast extract). To the best of the knowledge of the authors, this is the highest titer so far reported for P. polymyxa indicating its high potential as a non pathogenic BDL-producer. Fermentation in low nutritional medium (5 g L(-1) yeast extract) yielded up to 72 g L(-1) BDL+acetoin (79% R,R-BDL), yet was affected by formation of exopolysaccharides (EPS). In the range of 30-40°C EPS formation decreased with raising temperature although growth rate and BDL-production remained similar. Additionally, Tween80® was found to be a good additive to reduce viscosity caused by EPS.
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Affiliation(s)
- Thomas Häßler
- Technische Universität München, Chair of Chemistry of Biogenic Resources, Straubing, Germany
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120
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Preparation, antioxidant and antitumor activities in vitro of different derivatives of levan from endophytic bacterium Paenibacillus polymyxa EJS-3. Food Chem Toxicol 2012; 50:767-72. [DOI: 10.1016/j.fct.2011.11.016] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2011] [Revised: 11/13/2011] [Accepted: 11/14/2011] [Indexed: 11/23/2022]
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121
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Ye S, Liu F, Wang J, Wang H, Zhang M. Antioxidant activities of an exopolysaccharide isolated and purified from marine Pseudomonas PF-6. Carbohydr Polym 2012; 87:764-770. [DOI: 10.1016/j.carbpol.2011.08.057] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Revised: 08/09/2011] [Accepted: 08/20/2011] [Indexed: 12/14/2022]
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122
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Mikhaleva NY, Borisenkov MF, Gyunter EA, Popeiko OV, Ovodov YS. Effect of successive acid and enzymatic hydrolysis on the structure and antioxidant activity of pectins. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2011. [DOI: 10.1134/s1068162011070156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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123
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Chowdhury SR, Manna S, Saha P, Basak RK, Sen R, Roy D, Adhikari B. Composition analysis and material characterization of an emulsifying extracellular polysaccharide (EPS) produced by Bacillus megaterium RB-05: a hydrodynamic sediment-attached isolate of freshwater origin. J Appl Microbiol 2011; 111:1381-93. [PMID: 21973188 DOI: 10.1111/j.1365-2672.2011.05162.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
AIMS This work was aimed to isolate, purify and characterize an extracellular polysaccharide (EPS) produced by a freshwater dynamic sediment-attached micro-organism, Bacillus megaterium RB-05, and study its emulsifying potential in different hydrocarbon media. METHODS AND RESULTS Bacillus megaterium RB-05 was found to produce EPSs in glucose mineral salts medium, and maximum yield (0.864 g l(-1) ) was achieved after 24-h incubation. The recovery rates of the polysaccharide material by ion-exchange and gel filtration chromatography were around 67 and 93%, respectively. As evident from HPLC and FT-IR analyses, the polysaccharide was found to be a heteropolymer-containing glucose, galactose, mannose, arabinose, fucose and N-acetyl glucosamine. Different oligosaccharide combinations namely hexose(3), hexose(4), hexose(5) deoxyhexose(1) and hexose(5) deoxyhexose(1) pentose(3) were obtained after partial hydrolysis of the polymer using MALDI-ToF-MS. The polysaccharide with an average molecular weight of 170 kDa and thermal stability up to 180°C showed pseudoplastic rheology and significant emulsifying activity in hydrocarbon media. CONCLUSIONS Isolated polysaccharide was found to be of high molecular weight and thermally stable. The purified EPS fraction was composed of hexose, pentose and deoxyhexose sugar residues, which is a rare combination for bacterial polysaccharides. Emulsifying property was either better or comparable to that of other commercially available natural gums and polysaccharides. SIGNIFICANCE AND IMPACT OF THE STUDY This is probably one of the few reports about characterizing an emulsifying EPS produced by a freshwater sediment-attached bacterium. The results of this study contribute to understand the influence of chemical composition and material properties of a new microbial polysaccharide on its application in industrial biotechnology. Furthermore, this work reconfirms freshwater dynamic sediment as a potential habitat for bioprospecting extracellular polymer-producing bacteria. This study will improve our knowledge on the exploitation of a nonconventional renewable resource, which also seems to be ecologically significant.
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Affiliation(s)
- S R Chowdhury
- Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur, WB, India
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124
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Production and characterization of exopolysaccharides and antioxidant from Paenibacillus sp. TKU023. N Biotechnol 2011; 28:559-65. [DOI: 10.1016/j.nbt.2011.03.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 02/25/2011] [Accepted: 03/03/2011] [Indexed: 11/23/2022]
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125
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Chowdhury SR, Basak RK, Sen R, Adhikari B. Optimization, dynamics, and enhanced production of a free radical scavenging extracellular polysaccharide (EPS) from hydrodynamic sediment attached Bacillus megaterium RB-05. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.06.050] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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126
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Joseph B, Priya RM. Bioactive Compounds from Endophytes and their Potential in Pharmaceutical Effect: A Review. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/ajbmb.2011.291.309] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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127
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Raza W, Makeen K, Wang Y, Xu Y, Qirong S. Optimization, purification, characterization and antioxidant activity of an extracellular polysaccharide produced by Paenibacillus polymyxa SQR-21. BIORESOURCE TECHNOLOGY 2011; 102:6095-103. [PMID: 21392978 DOI: 10.1016/j.biortech.2011.02.033] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Revised: 02/07/2011] [Accepted: 02/08/2011] [Indexed: 05/24/2023]
Abstract
The optimization, purification and characterization of an extracellular polysaccharide (EPS) from a bacterium Paenibacillus polymyxa SQR-21 (SQR-21) were investigated. The results showed that SQR-21 produced one kind of EPS having molecular weight of 8.96 × 10(5)Da. The EPS was comprised of mannose, galactose and glucose in a ratio of 1.23:1.14:1. The ratio of monosaccharides and glucuronic acid was 7.5:1. The preferable culture conditions for EPS production were pH 6.5, temperature 30°C for 96 h with yeast extract and galactose as best N and C sources, respectively. The maximum EPS production (3.44 g L(-1)) was achieved with galactose 48.5 g L(-1), Fe(3+) 242 μM and Ca(2+) 441 μM. In addition, the EPS showed good superoxide scavenging, flocculating and metal chelating activities while moderate inhibition of lipid peroxidation and reducing activities were determined. These results showed the great potential of EPS produced by SQR-21 to be used in industry in place of synthetic compounds.
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Affiliation(s)
- Waseem Raza
- Jiangsu Provincial Key Lab for Organic Slid Waste Utilization, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
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128
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Characterization and emulsifying property of a carbohydrate polymer produced by Bacillus pumilus UW-02 isolated from waste water irrigated agricultural soil. Int J Biol Macromol 2011; 48:705-12. [DOI: 10.1016/j.ijbiomac.2011.02.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Revised: 02/10/2011] [Accepted: 02/24/2011] [Indexed: 11/15/2022]
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129
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Kanmani P, Satish kumar R, Yuvaraj N, Paari KA, Pattukumar V, Arul V. Production and purification of a novel exopolysaccharide from lactic acid bacterium Streptococcus phocae PI80 and its functional characteristics activity in vitro. BIORESOURCE TECHNOLOGY 2011; 102:4827-4833. [PMID: 21300540 DOI: 10.1016/j.biortech.2010.12.118] [Citation(s) in RCA: 192] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Revised: 12/30/2010] [Accepted: 12/31/2010] [Indexed: 05/30/2023]
Abstract
Optimum culture conditions which ease the synthesis of a novel exopolysaccharide (EPS) from a potent marine strain Streptococcus phocae was proposed in this study. The strain grows well at 35 °C, pH 7.0 and NaCl (2%) with lactose and yeast extract as best carbon and nitrogen sources. The maximum yield of EPS (11.75 and 12.14 g/L) was obtained in the presence of lactose and yeast extract at a concentration of 20 g/L respectively. EPS was refined by gel filtration chromatography using phenyl Sepharose column which revealed the presence of arabinose, fructose and galactose sugar units with molecular mass about 2.8 × 10(5) Da. Emulsifying and flocculating stability of EPS compared with three commercial hydrocolloids. EPS exhibited better activities which are similar to that of commercial hydrocolloids. Both crude and purified EPS exhibited strong antioxidant potential by quenching hydroxyl and superoxide anion radicals. Antibiofilm activity by inhibition of Gram positive and Gram negative biofilm forming bacteria was evident in our studies. Potential antioxidant activity and biofilm inhibiting property of EPS may lead to the development of novel food grade adjuncts.
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Affiliation(s)
- Paulraj Kanmani
- Department of Biotechnology, School of Life Sciences, Pondicherry University, Pondicherry 605014, India
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130
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Gan D, Ma L, Jiang C, Xu R, Zeng X. Production, preliminary characterization and antitumor activity in vitro of polysaccharides from the mycelium of Pholiota dinghuensis Bi. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.12.058] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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131
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In vitro and in vivo antioxidant activity of exopolysaccharides from endophytic bacterium Paenibacillus polymyxa EJS-3. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2010.07.008] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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132
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Pimentel MR, Molina G, Dionísio AP, Maróstica Junior MR, Pastore GM. The use of endophytes to obtain bioactive compounds and their application in biotransformation process. BIOTECHNOLOGY RESEARCH INTERNATIONAL 2010; 2011:576286. [PMID: 21350663 PMCID: PMC3042614 DOI: 10.4061/2011/576286] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Accepted: 08/09/2010] [Indexed: 11/20/2022]
Abstract
Endophytes are microorganisms that reside asymptomatically in the tissues of higher plants and are a promising source of novel organic natural metabolites exhibiting a variety of biological activities. The laboratory of Bioaromas (Unicamp, Brazil) develops research in biotransformation processes and functional evaluation of natural products. With the intent to provide subsidies for studies on endophytic microbes related to areas cited before, this paper focuses particularly on the role of endophytes on the production of anticancer, antimicrobial, and antioxidant compounds and includes examples that illustrate their potential for human use. It also describes biotransformation as an auspicious method to obtain novel bioactive compounds from microbes. Biotransformation allows the production of regio- and stereoselective compounds under mild conditions that can be labeled as "natural," as discussed in this paper.
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Affiliation(s)
- Mariana Recco Pimentel
- Laboratory of Bioflavors,Department of Food Science, School of Food Engineering, University of Campinas, P.O. Box 6121, 13083-862 Campinas, SP, Brazil
| | - Gustavo Molina
- Laboratory of Bioflavors,Department of Food Science, School of Food Engineering, University of Campinas, P.O. Box 6121, 13083-862 Campinas, SP, Brazil
| | - Ana Paula Dionísio
- Laboratory of Bioflavors,Department of Food Science, School of Food Engineering, University of Campinas, P.O. Box 6121, 13083-862 Campinas, SP, Brazil
| | - Mário Roberto Maróstica Junior
- Laboratory of Nutrition and Metabolism, Department of Food and Nutrition, School of Food Engineering, University of Campinas, P.O. Box 6121, 13083-862 Campinas, SP, Brazil
| | - Gláucia Maria Pastore
- Laboratory of Bioflavors,Department of Food Science, School of Food Engineering, University of Campinas, P.O. Box 6121, 13083-862 Campinas, SP, Brazil
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133
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Liu J, Luo J, Sun Y, Ye H, Lu Z, Zeng X. A simple method for the simultaneous decoloration and deproteinization of crude levan extract from Paenibacillus polymyxa EJS-3 by macroporous resin. BIORESOURCE TECHNOLOGY 2010; 101:6077-6083. [PMID: 20346649 DOI: 10.1016/j.biortech.2010.03.019] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2009] [Revised: 02/20/2010] [Accepted: 03/06/2010] [Indexed: 05/29/2023]
Abstract
A simple method for the simultaneous decoloration and deproteinization of crude levan extract from the endophytic bacterium Paenibacillus polymyxa EJS-3 was developed through static and dynamic adsorption tests of macroporous resins. S-8 resin demonstrated the highest decoloration and deproteinization ratios among various resins tested. Under optimized static adsorption conditions (pH 6.0, 35 degrees C and adsorption time of 70 min), the ratios of decoloration, deproteinization and polysaccharide recovery for S-8 resin were 76.8%, 78.9% and 69.0%, respectively. Under optimized dynamic adsorption condition (flow rate of 2 BV/h, 160 ml of 2.5mg/ml crude levan extract), higher ratios of decoloration, deproteinization and polysaccharide recovery for S-8 resin (84.6%, 91.7% and 81.3%, respectively) were observed. The method developed will provide a potential approach for large-scale production of levan from P.polymyxa EJS-3.
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Affiliation(s)
- Jun Liu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
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134
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Antioxidant activity in vitro of the selenium-contained protein from the Se-enriched Bifidobacterium animalis 01. Anaerobe 2010; 16:380-6. [PMID: 20601030 DOI: 10.1016/j.anaerobe.2010.06.006] [Citation(s) in RCA: 131] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2009] [Revised: 06/04/2010] [Accepted: 06/13/2010] [Indexed: 11/22/2022]
Abstract
Several studies indicated that bifidobacteria possessed strong antioxidant activity. In present study, the antioxidant activities of Bifidobacterium animalis 01 proteins were evaluated using six assays, namely, linoleic acid preoxidation assay, erythrocyte hemolysis assay, 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay, reducing power assay, hydroxyl (.OH) and superoxide radicals (.O(2)(-)) assays, in which the last two assays were measured by electron spin resonance (ESR). There were two kinds of B. animalis 01 proteins in this study, the regular B. animalis 01 protein (Pro-CK) and the B. animalis 01 selenium-contained protein (Pro-Se). Both Pro-CK and Pro-Se showed concentration dependent antioxidant activity in DPPH assay, reducing power assay and erythrocyte hemolysis assay. All results of six assays indicated that the antioxidant activity of the B. animalis 01 protein was improved remarkably after selenium was incorporated. The antioxidant activity of Pro-Se increased with the increase of selenium content in Pro-Se suggesting selenium played a positive role in enhancing the antioxidant activity of B. animalis 01 protein. Moreover, organic selenium was more effective than inorganic selenium on enhancing the hydroxyl radical scavenging ability of B. animalis 01 protein.
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135
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Medium optimization and structural characterization of exopolysaccharides from endophytic bacterium Paenibacillus polymyxa EJS-3. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2009.07.055] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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