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Artykuły w czasopismach na temat „Gellan gum”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Mikusheva, Nina G., Ivan M. Zorin, Alexander S. Gubarev, Alexandr V. Ievlev, Olga V. Volina, and Nikolai V. Tsvetkov. "Influence of Reduced Molar Mass of Low-Acyl Gellan Gum on Weak Gel Formation and Rheological Properties." Gels 11, no. 6 (2025): 398. https://doi.org/10.3390/gels11060398.

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Reduced-molar-mass low-acyl gellan gum was obtained by the centrifugation of an aqueous solution of commercially available food-grade gellan gum. The derived sample was characterized by NMR, FTIR, ICPE, and viscometry methods. The characteristics were compared with commercially available gellan gum Gelzan™. The main focus of the investigation is on the rheological properties of low-molar-mass-gellan ion-induced gels and the influence of reduced molar mass on gelling of gellan. The gels were prepared by adding 0.2–0.3 M of NaCl or KCl to the 0.6 g/dL gellan gum aqueous solution in a 1:1 ratio.

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Giavasis, Ioannis, Linda M. Harvey, and Brian McNeil. "Gellan Gum." Critical Reviews in Biotechnology 20, no. 3 (2000): 177–211. http://dx.doi.org/10.1080/07388550008984169.

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Tran, Thi Phuong An, Hoon Cho, Gye-Chun Cho, Jong-In Han, and Ilhan Chang. "Nickel (Ni2+) Removal from Water Using Gellan Gum–Sand Mixture as a Filter Material." Applied Sciences 11, no. 17 (2021): 7884. http://dx.doi.org/10.3390/app11177884.

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Microbial biopolymers have been introduced as materials for soil treatment and ground improvement purposes because of their ability to enhance soil strength enhancement and to reduce hydraulic conductivity. Several studies in the field of environmental engineering have reported heavy metal adsorption and removal from contaminated water using common biopolymers. In particular, gellan gum biopolymers have drawn significant attention for use in metal ion adsorption. This study aims to investigate the heavy metal adsorption capacity of a gellan gum biopolymer–sand mixture when nickel-contaminated

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Moyo, Mthabisi Talent George, Terin Adali, and Oğuz Han Edebal. "ISO 10993-4 Compliant Hemocompatibility Evaluation of Gellan Gum Hybrid Hydrogels for Biomedical Applications." Gels 10, no. 12 (2024): 824. https://doi.org/10.3390/gels10120824.

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This study examines the hemocompatibility of gellan-gum-based hybrid hydrogels, with varying gellan-gum concentrations and constant sodium alginate and silk fibroin concentrations, respectively, in accordance with ISO 10993-4 standards. While previous studies have focused on cytocompatibility, the hemocompatibility of these hydrogels remains underexplored. Hydrogels were formulated with 0.3%, 0.5%, 0.75%, and 1% gellan gum combined with 3% silk fibroin and 4.2% sodium alginate separately, using physical and ionic cross-linking. Swelling behavior was analyzed in phosphate (pH 7.4) and acetic (p

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Sukumar, Soumiya, Santhiagu Arockiasamy, and Moothona Manjusha Chemmattu. "Gellan gum biopolymer- A review." Research Journal of Chemistry and Environment 25, no. 10 (2021): 150–57. http://dx.doi.org/10.25303/2510rjce150157.

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Gellan gum is an anionic polysaccharide produced by the bacterium Sphingomonas paucimobilis. Kaneko and Kang discovered the biopolymer in the laboratory of the Kelco Division of Merck and Co., California, USA. It is composed of tetrasaccharide repeating units of two residues of D-glucose, one of D-glucuronic and one of L-rhamnose. The functional properties of gellan gum make it one of the industrially useful exopolysaccharides. Sphingomonas paucimobilis ATCC 31461 is the bacterium used for the industrial production of gellan gum. The gellan gum has potential applications in food, pharmaceutica

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Zhang, Yuanyuan, Jianwei Zang, Shutong Liu, et al. "Gellan Gum Enhances the Quality of Egg-Based Yoghurt by Changing the Water Phase Distribution and Improving the Gel Texture." Foods 14, no. 2 (2025): 296. https://doi.org/10.3390/foods14020296.

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Egg-based yoghurt (EBY) is a novel yoghurt fermented by lactic acid bacteria with high nutritional and health values, serving as a potential alternative to milk-based yoghurt. However, the hardness, adhesiveness, and water-holding capacity of egg-based yoghurt need to be further improved. In this study, the improvement in EBY quality by gellan gum and its underlying mechanism were investigated. The results showed that gellan gum significantly improved the quality of EBY (p < 0.05). Among the five concentration gradients tested, the EBY supplemented with 0.045% gellan gum exhibited the best

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Sun, Ling, Yazhen Wang, Meixiang Yue, et al. "Rapid Screening of High-Yield Gellan Gum Mutants of Sphingomonas paucimobilis ATCC 31461 by Combining Atmospheric and Room Temperature Plasma Mutation with Near-Infrared Spectroscopy Monitoring." Foods 11, no. 24 (2022): 4078. http://dx.doi.org/10.3390/foods11244078.

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In this study, an efficient mutagenesis and rapid screening method of high-yield gellan gum mutant by atmospheric and room temperature plasma (ARTP) treatment combined with Near-Infrared Spectroscopy (NIRS) was proposed. A NIRS model for the on-line detection of gellan gum yield was constructed by joint interval partial least squares (siPLS) regression on the basis of chemical determination and NIRS acquisition of gellan gum yield. Five genetically stable mutant strains were screened using the on-line NIRS detection of gellan gum yield in the fermentation from approximately 600 mutant strains

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Wang, Xia, Ping Xu, Yong Yuan, et al. "Modeling for Gellan Gum Production by Sphingomonas paucimobilis ATCC 31461 in a Simplified Medium." Applied and Environmental Microbiology 72, no. 5 (2006): 3367–74. http://dx.doi.org/10.1128/aem.72.5.3367-3374.2006.

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ABSTRACT Gellan gum production was carried out by Sphingomonas paucimobilis ATCC 31461 in a simplified medium with a short incubation time, and a kinetic model for understanding, controlling, and optimizing the fermentation process was proposed. The results revealed that glucose was the best carbon source and that the optimal concentration was 30 g liter−1. As for the fermenting parameters, considerably large amounts of gellan gum were yielded by an 8-h-old culture and a 4% inoculum at 200 rpm on a rotary shaker. Under the optimized conditions, the maximum level of gellan gum (14.75 g liter−1)

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Abdl Aali, Raghad Abdl Karim, and Shayma Thyab Gddoa Al-Sahlany. "Sustainability in the Production of Gellan Gum From Sphingomonas Species by Using the Best Optimum Conditions: Review." IOP Conference Series: Earth and Environmental Science 1371, no. 6 (2024): 062014. http://dx.doi.org/10.1088/1755-1315/1371/6/062014.

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Abstract Multiple exo-polysaccharides derived from microorganisms have been documented within the previous decade, encompassing their distinct structural and functional characteristics. Gellan gum represents one of these emerging biopolymers, exhibiting versatile properties. However, the production of gellan gum is hindered by low yields, costly downstream procedures, and an overwhelmingly high market demand, rendering it a material of elevated expense. Consequently, it is advantageous to comprehend the diverse approaches available for the development of a cost-effective bioprocess specificall

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Hara, Shintaro, Yasuyuki Hashidoko, Roman V. Desyatkin, Ryusuke Hatano, and Satoshi Tahara. "High Rate of N2 Fixation by East Siberian Cryophilic Soil Bacteria as Determined by Measuring Acetylene Reduction in Nitrogen-Poor Medium Solidified with Gellan Gum." Applied and Environmental Microbiology 75, no. 9 (2009): 2811–19. http://dx.doi.org/10.1128/aem.02660-08.

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ABSTRACT For evaluating N2 fixation of diazotrophic bacteria, nitrogen-poor liquid media supplemented with at least 0.5% sugar and 0.2% agar are widely used for acetylene reduction assays. In such a soft gel medium, however, many N2-fixing soil bacteria generally show only trace acetylene reduction activity. Here, we report that use of a N2 fixation medium solidified with gellan gum instead of agar promoted growth of some gellan-preferring soil bacteria. In a soft gel medium solidified with 0.3% gellan gum under appropriate culture conditions, bacterial microbiota from boreal forest bed soils

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Vaishali, R. Mahajan*1 Vasanti R. Mali2. "Rapid-Release Oral Films for Emergency Psychiatric Intervention: A Novel Formulation of Venlafaxine Hydrochloride." International Journal in Pharmaceutical Sciences 2, no. 10 (2024): 422–34. https://doi.org/10.5281/zenodo.13904697.

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This study focused on the successful formulation of orally dissolvable films (ODFs) of Venlafaxine using the solvent casting method. HPMC E15 and Gellan gum were employed as film-forming polymers at various concentrations (25%, 30%, and 35%). The optimized formulation (F13), which utilized equal proportions of HPMC E15 and Gellan gum (25%), demonstrated superior drug release rates, stability, and overall performance compared to formulations with individual polymers (F2 and F5). F13 also provided advantages such as rapid onset of action, increased bioavailability, avoidance of first-pass metabo

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Hilal, Adonis, Anna Florowska, Tomasz Florowski, and Małgorzata Wroniak. "A Comparative Evaluation of the Structural and Biomechanical Properties of Food-Grade Biopolymers as Potential Hydrogel Building Blocks." Biomedicines 10, no. 9 (2022): 2106. http://dx.doi.org/10.3390/biomedicines10092106.

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The aim of this study was to conduct a comparative assessment of the structural and biomechanical properties of eight selected food-grade biopolymers (pea protein, wheat protein, gellan gum, konjac gum, inulin, maltodextrin, psyllium, and tara gum) as potential hydrogel building blocks. The prepared samples were investigated in terms of the volumetric gelling index, microrheological parameters, physical stability, and color parameters. Pea protein, gellan gum, konjac gum, and psyllium samples had high VGI values (100%), low solid–liquid balance (SLB < 0.5), and high macroscopic viscosity in

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13

Gussenov, Iskander, Ramza Zh Berzhanova, Togzhan D. Mukasheva, et al. "Exploring Potential of Gellan Gum for Enhanced Oil Recovery." Gels 9, no. 11 (2023): 858. http://dx.doi.org/10.3390/gels9110858.

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Extensive laboratory and field tests have shown that the gelation response of gellan gum to saline water makes it a promising candidate for enhanced oil recovery (EOR). The objective of this mini-review is to evaluate the applicability of gellan gum in EOR and compare its efficiency to other precursors, in particular, hydrolyzed polyacrylamide (HPAM). At first, the “sol-gel” phase transitions of gellan gum in aqueous-salt solutions containing mono- and divalent cations are considered. Then the rheological and mechanical properties of gellan in diluted aqueous solutions and gel state are outlin

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Yamada, Masanori, and Yoshihiro Kametani. "Preparation of Gellan Gum-Inorganic Composite Film and Its Metal Ion Accumulation Property." Journal of Composites Science 6, no. 2 (2022): 42. http://dx.doi.org/10.3390/jcs6020042.

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Gellan gum is one of the water-soluble anionic polysaccharides produced by the bacteria Sphingomonas elodea. In this study, we prepared gellan gum-inorganic composite films by mixing the gellan gum and a silane coupling reagent—3-glycidoxypropyltrimethoxysilane (GPTMS). These gellan gum-GPTMS composite films were stable in an aqueous solution and showed a thermal stability. In addition, these composite films indicated a mechanical strength by the formation of the three-dimensional network of siloxane. We demonstrated the accumulation of metal ions from a metal ion-containing aqueous solution b

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Chang, Ilhan, Jooyoung Im, and Gye-Chun Cho. "Geotechnical engineering behaviors of gellan gum biopolymer treated sand." Canadian Geotechnical Journal 53, no. 10 (2016): 1658–70. http://dx.doi.org/10.1139/cgj-2015-0475.

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Biological approaches have recently been explored as environmentally friendly alternatives to engineered soil methods in geotechnical engineering practices. The use of microbial induced calcite precipitation, reactive enzymes, and microbial polymers, such as biopolymers, in soil improvement has been studied by researchers around the world. In the present study, gellan gum, a microbial polysaccharide generally used in the food industry due to its hydrogel rheology, was used to strengthen sand. The effects of gellan gum on the geotechnical behaviors of cohesionless sand were evaluated through a

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Sworn, G., G. R. Sanderson, and W. Gibson. "Gellan gum fluid gels." Food Hydrocolloids 9, no. 4 (1995): 265–71. http://dx.doi.org/10.1016/s0268-005x(09)80257-9.

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Grasdalen, Hans, and Olav Smidsrød. "Gelation of gellan gum." Carbohydrate Polymers 7, no. 5 (1987): 371–93. http://dx.doi.org/10.1016/0144-8617(87)90004-x.

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Barbosa, Eduardo José, and Humberto Gomes Ferraz. "Gellan gum and polyvinylpyrrolidone (PVP) as binding agents in extrusion/spheronization pellet formulations." Acta Pharmaceutica 69, no. 1 (2019): 99–109. http://dx.doi.org/10.2478/acph-2019-0007.

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Abstract The aim of this work was to evaluate gellan gum as binder in pellet formulations, with theophylline as the model drug, in comparison with polyvinylpyrrolidone (PVP). A full 32 factorial design was realized, with binder and diluent factors at three levels each. Pellets were produced by the extrusion/spheronization technique, and dried in a fluid-ized bed. Physical tests and dissolution tests were conducted. The results showed that the binder factor was not significant for pellet size and granulometry distribution. Rather, trends of a different response of gellan gum were identified, in

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Meng, Fanbo, Guowei Shu, Yunxia He, Wenhui Li, Hongxing Guo, and Jiangpeng Meng. "Effect of Complexation Conditions on Microcapsulation of Lactobacillus Casei L61 in Gellan Gum–Chitosan Gels." Acta Universitatis Cibiniensis. Series E: Food Technology 25, no. 1 (2021): 105–14. http://dx.doi.org/10.2478/aucft-2021-0010.

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Abstract Probiotics have many benefits for human intestinal health. However, Probiotics have poor tolerance to gastric acid and bile salts of the stomach. Microencapsulation could confer protection to probiotic against harsh environments effectively. In this experiment, Lactobacillus casei L61 was embedded by extrusion with gellan gum and chitosan as wall material. The viable cells and encapsulation yield of microcapsules were used as the indexes, the optimum values of each factor were determined by a single factor experiment. Chitosan concentration 0.50%, chitosan pH 4.5, gellan gum concentra

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Usha S, Devika, Anusha S, Harikrishna P R, Adhul Dev Madhu, and Mita Ann Zachariah. "Guar Gum, Gellan Gum Biopolymer Soil Stabilization." E3S Web of Conferences 529 (2024): 01053. http://dx.doi.org/10.1051/e3sconf/202452901053.

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In civil engineering and construction, soil stabilization is an important aspect. There are diverse conventional techniques to improve soilproperties and for soil stabilization. This study explores the viability of twotypes of biopolymers, Guar gum and Gellan gum, as sustainable and ecofriendly additives for clayey soil stabilization. Compaction, unconfined compression test, permeability, consistency limit, consolidation tests were performed in the study. The sample for the test has been prepared that biopolymer has been mixed with soil in different proportions. These biopolymers forms hydroge

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Alshammari, Norah A., Katherine Riches Riches, Syahrizal Muttakin, et al. "The Effects of Adding Gellan Gum to White Rice on the Glycemic, Gastrointestinal and Appetitive Responses: A Randomised, Controlled, Crossover Study." Current Developments in Nutrition 6, Supplement_1 (2022): 501. http://dx.doi.org/10.1093/cdn/nzac077.004.

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Abstract Objectives Starchy foods are main sources of carbohydrates, and their digestibility affects the postprandial metabolic responses, which in the long term may be associated with an increased risk of type 2 diabetes. Addition of food hydrocolloids such as gellan gum (GG) to jasmine rice reduced its starch digestibility in-vitro. The aim of this study was to determine the effect of adding GG to jasmine rice on postprandial glycemic, gastrointestinal and appetitive responses in humans. Methods 12 healthy adults participated in a randomised, controlled, crossover study. They consumed an iso

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Taylor, Danielle L., Cameron J. Ferris, Alison R. Maniego, Patrice Castignolles, Marc in het Panhuis, and Marianne Gaborieau. "Characterization of Gellan Gum by Capillary Electrophoresis." Australian Journal of Chemistry 65, no. 8 (2012): 1156. http://dx.doi.org/10.1071/ch12211.

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Gellan gums were characterised for the first time using free-solution capillary electrophoresis (CE) or CE under critical conditions (CE-CC). CE-CC is a fast method that separates the polysaccharide. Gellan gums are shown to be heterogeneous in terms of their electrophoretic mobility at 55°C revealing: oligomer peak(s), broad peaks of polymers with a random coil conformation with different degrees of acylation (composition), aggregates, and polymers with double-helix conformation. CE-CC is complementary with the rheological analysis also performed in this work. Sonication of gellan gums is sho

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Lin, Hong-Ting Victor, Jenn-Shou Tsai, Hsiao-Hui Liao, and Wen-Chieh Sung. "Effect of Hydrocolloids on Penetration Tests, Sensory Evaluation, and Syneresis of Milk Pudding." Polymers 17, no. 3 (2025): 300. https://doi.org/10.3390/polym17030300.

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This study evaluated how added gums, starch amounts, and sucrose levels affect the texture, sensory acceptability, and syneresis of milk puddings. The puddings were prepared with four ingredients, namely 0.3% polysaccharide (κ,ι-carrageenan, gellan gum, gelatin, or agar), 2.5–7.5% sucrose, 1–5% modified waxy corn starch, and whole milk. The physical and sensory properties were assessed through measurements of gel strength, breaking point, breaking force, rigidity, and hedonic testing. Results show that syneresis increased in all milk puddings during two weeks of refrigerated storage. Among the

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Das, Sudipta, Rahul Pan, Rimi Dey, and Mamata Ghosh. "Development and in vitro study of Metronidazole loaded cross linked sodium alginate and gellan gum microspheres." Journal of Drug Delivery and Therapeutics 12, no. 1-S (2022): 60–63. http://dx.doi.org/10.22270/jddt.v12i1-s.5345.

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Formulation of metronidazole loaded trivalent ion Al+3 cross-linked and gellan gum microspheres was developed. The Metronidazole loaded microspheres were prepared taking sodium alginate, gellan gum as excipients along with maleic anhydride, aluminium chloride as cross-linking agents. The evaluation processes of prepared metronidazole microspheres were done by in-vitro release study, microscopic analysis and swelling index. Each of the formulations shows good entrapment efficiency with the maximum entrapment 85.8±5.63% was governed by the F1 formulation while F2 formulation confirms 82.3±4.72%

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Putra, Hasan Etanov, Aliya Azkia Zahra, Kania Nurul Aini, Muthia Rafifa, Verin Sakinah Maulida, and Lina Maisa Sabrina. "Comparison of polymer types on physical evaluation of in situ ophthalmic gel preparations: A Review." Jurnal Pijar Mipa 20, no. 3 (2025): 437–43. https://doi.org/10.29303/jpm.v20i3.8630.

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The development of temperature, pH, and ion-responsive in situ ophthalmic gels aims to enhance drug retention and release efficacy in the eye. Polymers such as Poloxamer (thermosensitive), Gellan Gum (ion-sensitive), and Carbopol (pH-sensitive) exhibit adaptive gelation mechanisms suited to ocular physiological conditions. Poloxamer forms a gel at body temperature, prolonging drug contact duration, while Gellan Gum creates a stable gel network through ionic interactions with lacrimal fluid, increasing viscosity and extending drug release. Carbopol, which transitions into a gel at neutral pH, p

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Suzuki, Shin-ichi, Kohei Takahashi, Toru Okuda, and Saburo Komatsubara. "Selective isolation ofActinobisporaon gellan gum plates." Canadian Journal of Microbiology 44, no. 1 (1998): 1–5. http://dx.doi.org/10.1139/w97-117.

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An effective method is described for selectively isolating the actinomycete genus Actinobispora. Gellan gum plus calcium chloride significantly stimulated aerial mycelium formation of Actinobispora yunnanensis IFO 15681 so that this genus was readily recognized on the isolation plate. A new medium, HVG, containing calcium chloride and gellan gum as a solidifying agent was thus developed based on humic acid - vitamin agar. A number of Actinobispora strains were successfully isolated on this medium from 14 soil samples, which were collected in Canada, France, Japan, the United Kingdom, and the U

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Meng, Yue Cheng, Lun Bo Hong, and Jian Qiu Jin. "A Study on the Gelation Properties and Rheological Behavior of Gellan Gum." Applied Mechanics and Materials 284-287 (January 2013): 20–24. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.20.

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The effects of gellan gum and calcium ions concentration on gelation characteristics and rheological behavior were investigated using TA(texture analysis)and mechanical rheometer which monitored respectively press strength and the evolution of G′. At a premium gellan gum content of 0.02g in 100ml buffer solution, increasing calcium ions concentration led to an increase in the gelation strength, but when calcium ions content reached a critical concentration values range from 0.015% to 0.02%, gelation strength begin to decrease. While in the same content of calcium ions, calcium lactate exhibits

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Syazwani Mohd, Saffawati, Mohd Aidil Adhha Abdullah, and Khairul Anuar Mat Amin. "Compression Strength of Gellan Gum Hydrogel Incorporated with Organo-Montmorillonite and Cloisite 15A." Materials Science Forum 840 (January 2016): 236–39. http://dx.doi.org/10.4028/www.scientific.net/msf.840.236.

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The uniformly cross-linked gellan gum hydrogel with sodium montmorillonite (Na-MMT), organo-montmorillonite (CTAB-MMT) and Cloisite 15A were successfully prepared. The compression performances of the hydrogels were investigated. The results show that the GG hydrogels containing Cloisite 15A required smallest volume to achieve optimum compression stress, modulus and compression strain at 5% (w/w) compared to both Na-MMT and CTAB-MMT at 10% (w/w), respectively. The decrease in compression performances of gellan gum hydrogel at higher concentration containing those clays could be due to agglomera

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Fialho, Arsénio M., Lígia O. Martins, Marie-Lucie Donval, et al. "Structures and Properties of Gellan Polymers Produced bySphingomonas paucimobilis ATCC 31461 from Lactose Compared with Those Produced from Glucose and from Cheese Whey." Applied and Environmental Microbiology 65, no. 6 (1999): 2485–91. http://dx.doi.org/10.1128/aem.65.6.2485-2491.1999.

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ABSTRACT The dairy industry produces large quantities of whey as a by-product of cheese production and is increasingly looking for new ways to utilize this waste product. Gellan gum is reliably produced bySphingomonas paucimobilis in growth media containing lactose, a significant component of cheese whey, as a carbon source. We studied and compared polysaccharide biosynthesis by S. paucimobilis ATCC 31461 in media containing glucose, lactose (5 to 30 g/liter), and sweet cheese whey. We found that altering the growth medium can markedly affect the polysaccharide yield, acyl substitution level,

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Lin, Hong-Ting Victor, Jenn-Shou Tsai, Hsiao-Hui Liao, and Wen-Chieh Sung. "The Effect of Hydrocolloids on Penetration Tests and Syneresis of Binary Gum Gels and Modified Corn Starch–Gum Gels." Gels 9, no. 8 (2023): 605. http://dx.doi.org/10.3390/gels9080605.

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The interactions among agar, gellan gum, gelatin, and modified waxy corn starch in the formation of mixed gels were examined in five different ratios. Binary hydrocolloid gels were prepared using three ingredients: two hydrocolloids (total hydrocolloid concentration: 0.5 wt%, ratios of mixture: 0/0.5, 0.1/0.4, 0.2/0.3, 0.3/0.2, 0.4/0.1, and 0.5/0) and water. The textural properties of the hydrocolloid gels were studied by measuring the gel strength, rigidity, breaking force, breaking point, and syneresis as functions of the mixing ratio. The higher syneresis percentage of binary modified waxy

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AMIT, ONKARI, PARULBEN D. MEHTA, and SHARMA KAJAL. ""Development, Characterization and Anti-Cancer Potential of 5-Fluorouracil Loaded Folate Appended Gellan Gum Nanoparticles for Breast Cancer Targeting"." International Journal of Multidisciplinary Research and Studies 07, no. 06 (2024): 27–39. https://doi.org/10.5281/zenodo.11637126.

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This study explores the pharmacological investigation and anti-cancer potential of folate-modified Gellan gum nanoparticles, focusing on their impact on cancer cells through p53 activation and the inhibition of the mTOR/PI3K pathway. The nanoparticles were meticulously characterized using advanced techniques, including Nuclear Magnetic Resonance (NMR) and Fourier-Transform Infrared Spectroscopy (FTIR) to ensure structural integrity. Additionally, drug release kinetics, particle size, zeta potential, and entrapment efficiency were assessed to understand the formulation's physicochemical propert

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Stevens, L. R., K. J. Gilmore, G. G. Wallace, and M. in het Panhuis. "Tissue engineering with gellan gum." Biomaterials Science 4, no. 9 (2016): 1276–90. http://dx.doi.org/10.1039/c6bm00322b.

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Upstill, C., E. D. T. Atkins, and P. T. Attwool. "Helical conformations of gellan gum." International Journal of Biological Macromolecules 8, no. 5 (1986): 275–88. http://dx.doi.org/10.1016/0141-8130(86)90041-3.

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Dodi, Gianina, Rosina E. Sabau, Bianca E. B. Crețu, and Ioannis Gardikiotis. "Exploring the Antioxidant Potential of Gellan and Guar Gums in Wound Healing." Pharmaceutics 15, no. 8 (2023): 2152. http://dx.doi.org/10.3390/pharmaceutics15082152.

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It is acknowledged that the presence of antioxidants boosts the wound-healing process. Many biopolymers have been explored over the years for their antioxidant potential in wound healing, but limited research has been performed on gum structures and their derivatives. This review aims to evaluate whether the antioxidant properties of gellan and guar gums and wound healing co-exist. PubMed was the primary platform used to explore published reports on the antioxidant wound-healing interconnection, wound dressings based on gellan and guar gum, as well as the latest review papers on guar gum. The

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Koko, Joel Henri Konan Kouakou, Vama Etienne Tia, Gaoussou Karamoko та Romdhane Karoui. "Determination of the Critical Micelle Concentration of Gelatin, ι-Carrageenan, Pectin, Gellan Gum and Xanthan Gum by Mid Infrared Spectroscopy Among Other Techniques". Chemosensors 13, № 3 (2025): 99. https://doi.org/10.3390/chemosensors13030099.

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Critical micelle concentration (CMC) is the main physico-chemical parameter to be determined for surfactants due to its impact on surface activity and self-assembled aggregation. The aim of the present study is to determine CMC at 40 °C of gelatin, ι-carrageenan, pectin, gellan gum and xanthan gum by using different analytical techniques, particularly mid-infrared (MIR) spectroscopy as a rapid technique. The CMC values obtained for each hydrocolloid were relatively identical regardless of the applied technique: rheometer, conductimetry and automatic drop tensiometer (tracker). Indeed, CMC valu

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Li, Haomiao, Leonardo Severini, Mattia Titubante, et al. "Gellan Gum Hydrogel as an Aqueous Treatment Method for Xuan Paper." Restaurator. International Journal for the Preservation of Library and Archival Material 42, no. 1 (2021): 37–54. http://dx.doi.org/10.1515/res-2020-0010.

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Abstract Aqueous cleaning of works of art on paper is one of the most important and delicate steps in a conservation process. It allows the removal of inorganic (metals) and organic substances, such as degradation products and other contaminants. These substances are responsible for yellowing, weakening, and loss of mechanical properties of paper. In this article, the cleaning effect of gellan gum was assessed on xuan paper, a traditional Chinese paper different in composition and papermaking technology compared to many Western papers. To assess the effect of gellan gum on xuan paper, its char

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Nair, Shah, Aljaeid, Al-Dhubiab, and Jacob. "Gellan Gum-Based Hydrogel for the Transdermal Delivery of Nebivolol: Optimization and Evaluation." Polymers 11, no. 10 (2019): 1699. http://dx.doi.org/10.3390/polym11101699.

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Poor solubility and appreciable first-pass metabolism have limited the oral bioavailability of nebivolol. The objective of the current investigation was to design, formulate, and optimize a hydrogel-based transdermal system for nebivolol using factorial design and compare its pharmacokinetics with oral suspension. Hydrogel formulations (F1–F8) were prepared by varying the amounts of gellan gum, carbopol, and polyethylene glycol. A 23 full factorial design was used to assess the effect of independent variables such as gellan gum, carbopol, and polyethylene glycol 400 on dependent variables like

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Zargar, Seyed Mohammad, Mehdi Mehdikhani, and Mohammad Rafienia. "Reduced graphene oxide–reinforced gellan gum thermoresponsive hydrogels as a myocardial tissue engineering scaffold." Journal of Bioactive and Compatible Polymers 34, no. 4-5 (2019): 331–45. http://dx.doi.org/10.1177/0883911519876080.

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Myocardial infarction is one of the most prevalent diseases around the world. Cardiac tissue engineering is a new approach to repair and revive the structure and functionality of cardiac damaged tissue. In this study, gellan gum/reduced graphene oxide composite hydrogels were fabricated, characterized, and evaluated. The hydrogels were prepared using the solvent casting method and characterized via scanning electron microscopy and Fourier-transform infrared spectroscopy. Compressive mechanical analysis, injectability as well as electrical conductivity test were run. Furthermore, water swelling

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Lu, Yushuang, Xiaojian Zhao, and Sheng Fang. "Characterization, Antimicrobial Properties and Coatings Application of Gellan Gum Oxidized with Hydrogen Peroxide." Foods 8, no. 1 (2019): 31. http://dx.doi.org/10.3390/foods8010031.

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The effect of hydrogen peroxide (H2O2) oxidation on the physicochemical, gelation and antimicrobial properties of gellan gum was studied. The oxidized gellan gum (OGG) was characterized by measuring the carboxyl/carbonyl group contents, Fourier transform infrared spectroscopy (FTIR) and proton nuclear magnetic resonance (1H-NMR) spectroscopy. The H2O2 oxidation resulted in a large increase in the carboxyl groups in gellan gum. The OGG lost gelation ability by oxidation even in the presence of metal ions. The antimicrobial activities of the OGG against Gram-positive bacteria (Staphylococcus aur

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Syed Ansar Ali, Amit Kumar Nayak, Kalyan Kumar Sen, and Prabhakar T. "Preparation and characterization of vetiver oil encapsulated polymeric microcapsules for sedative and hypnotic activity." International Journal of Research in Pharmaceutical Sciences 10, no. 4 (2019): 3616–25. http://dx.doi.org/10.26452/ijrps.v10i4.1743.

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In the present work, in view of the medicinal properties of vetiver oil (extracted from the roots of Vetiveria zizanioides L.), we made an attempt to encapsulate vetiver oil in a biocompatible polymeric system made of sodium alginate with gellan gum or karaya gum. Sodium alginate and gellan gum or karaya gum were ionotropically cross-linked to encapsulate vetiver oil. Vetiver oil encapsulations in these microcapsules were 35.92 ± 3.18 % to 78.55 ± 3.35%. Vetiver oil encapsulated microcapsules were of spherically shaped with 656-769 µm mean diameter. This vetiver oil encapsulated microcapsules

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Uthoff, Jana, Desiree Jakobs-Schönwandt, Karl-Josef Dietz, and Anant Patel. "Development of a Seed Treatment with Pochonia chlamydosporia for Biocontrol Application." Agriculture 14, no. 1 (2024): 138. http://dx.doi.org/10.3390/agriculture14010138.

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Seed treatment is a powerful technique for adding beneficial ingredients to plants during the seed preparation process. Biopolymers as drying agents and delivery systems in seed treatments were investigated for their biocompatibility with blastospores of the nematophagous fungus Pochonia chlamydosporia. To produce a novel seed treatment for the cover crop Phacelia tanacetifolia, xanthan gum TG and gellan gum were the most promising biopolymers in combination with potato starch and bentonite. The seed treatment process as well as the drying process were specially designed to be scalable, which

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Postema, Michiel, Christine Gering, Nicole Anderton, Craig S. Carlson, and Minna Kellomäki. "Monitoring the gelation of gellan gum with torsion rheometry and brightness-mode ultrasound." Current Directions in Biomedical Engineering 8, no. 2 (2022): 33–36. http://dx.doi.org/10.1515/cdbme-2022-1010.

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Abstract Gellan gum is a hydrogel with several applications in ultrasonic imaging, novel drug delivery, and tissue regeneration. As hydrogels are dynamic entities, their viscocelastic and therefore their acoustic properties change over time, which is of interest to monitor. To determine the speed of sound from brightness-mode images, however, rather large quantities of hydrogel are needed. In this study, we investigated torsion rheometry as a means to determine acoustic properties. Perceived speeds of sound were derived and computed from torsion rheometry measurements of gelating gellan gum mi

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Sapper, Mayra, Pau Talens, and Amparo Chiralt. "Improving Functional Properties of Cassava Starch-Based Films by Incorporating Xanthan, Gellan, or Pullulan Gums." International Journal of Polymer Science 2019 (January 13, 2019): 1–8. http://dx.doi.org/10.1155/2019/5367164.

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The effect of the partial substitution of cassava starch in edible films for 10 and 20 wt% of gellan, xanthan, or pullulan gums was analysed in films obtained by casting. The tensile properties, barrier capacity to water vapour, and oxygen and water sorption isotherms of the samples were analysed. The blend of starch with gellan gum was effective to reduce the moisture sorption capacity of starch films while reducing water vapour permeability, enhancing the film strength and resistance to break and preserving films against starch retrogradation throughout the storage time. Xanthan gum improved

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Muralidharan, D., A. Jaculin Raiza, and K. Pandian. "Single Pot Synthesis of Gellan Gum Coated Silver Nanoparticles and its Antimicrobial Activity." Asian Journal of Chemistry 33, no. 9 (2021): 2049–52. http://dx.doi.org/10.14233/ajchem.2021.23295.

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A single pot synthesis of gellan gum coated silver nanoparticles using aniline as a reducing agent has been investigated in present study. The reaction was facile at 80 ºC under reflux condition and the complete reduction of silver ions was noted within 2 h. The resulting gellan gum protected silver nanoparticle was isolated and analyzed with various analytical tools. The antimicrobial activity of the prepared nanocomposite had shown an excellent activity against some selected pathogenic microorganisms.

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Osmałek, Tomasz Zbigniew, Anna Froelich, Barbara Jadach, and Marek Krakowski. "Rheological investigation of high-acyl gellan gum hydrogel and its mixtures with simulated body fluids." Journal of Biomaterials Applications 32, no. 10 (2018): 1435–49. http://dx.doi.org/10.1177/0885328218762361.

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Purpose Most of the studies concerning gellan have been focused on its application as a food ingredient, however, gellan is often considered as a candidate for the development of novel pharmaceutical formulations. Taking into account that gellan is ion-sensitive, it can be assumed that its initial mechanical properties can change upon contact with body secretions. Therefore, the aim of the work was to investigate the rheological properties of pure high-acyl gellan gum hydrogel (0.4%) and its mixtures with selected simulated body fluids. Methods The rheological investigations were performed on

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Feketshane, Zizo, Sibusiso Alven, and Blessing Atim Aderibigbe. "Gellan Gum in Wound Dressing Scaffolds." Polymers 14, no. 19 (2022): 4098. http://dx.doi.org/10.3390/polym14194098.

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Several factors, such as bacterial infections, underlying conditions, malnutrition, obesity, ageing, and smoking are the most common issues that cause a delayed process of wound healing. Developing wound dressings that promote an accelerated wound healing process and skin regeneration is crucial. The properties of wound dressings that make them suitable for the acceleration of the wound healing process include good antibacterial efficacy, excellent biocompatibility, and non-toxicity, the ability to provide a moist environment, stimulating cell migration and adhesion, and providing gaseous perm

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Nellinger, Svenja, and Petra J. Kluger. "Native and cell-derived extracellular matrix exhibit disparate immunogenic and immunomodulatory effects." Current Directions in Biomedical Engineering 10, no. 4 (2024): 453–56. https://doi.org/10.1515/cdbme-2024-2111.

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Abstract The extracellular matrix (ECM) represents the natural environment of the cells and consists of various fibrous and non-fibrous proteins. It can be generated by decellularization of native tissue (dECM) or by isolation from cultured cells in vitro (cdECM). In the present study the immunomodulatory effect of dECM from native adipose tissue and cdECM from adipose derived stem cells (cdECM) on monocytes and ASCs encapsulated in gellan gum-ECM hybrid hydrogels was investigated. The monocyte activation test revealed a higher secretion of IL6 and TNFα in monocytes incubated with dECM compare

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Cuello, Rafael Emilio González, Lena Beatriz Morón Alcázar, and Heliana Milena Castellanos. "Dairy wastewater treatment employing microencapsulated Pseudomonas aeruginosa on low acyl gellan gum." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 19 (June 3, 2024): 1–12. http://dx.doi.org/10.4136/ambi-agua.2974.

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This study assessed the ability of Pseudomonas aeruginosa, microencapsulated in gellan gum, to decontaminate dairy wastewater and explored the potential reuse of microcapsules. P. aeruginosa was microencapsulated using the internal ionic gelation technique, employing low-acyl gellan gum as the wall material. The free and microencapsulated P. aeruginosa were inoculated into 150 mL of sterile wastewater and incubated in a shaking flask (150 rpm) at 30°C. Subsequently, the Baranyi Model was employed to calculate the growth parameters of P. aeruginosa. Concurrently, Biological Oxygen Demand (BOD)

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Lv, Yukai, Zheng Pan, Cunzheng Song, Yulong Chen, and Xin Qian. "Locust bean gum/gellan gum double-network hydrogels with superior self-healing and pH-driven shape-memory properties." Soft Matter 15, no. 30 (2019): 6171–79. http://dx.doi.org/10.1039/c9sm00861f.

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Double-network hydrogels based on two natural polysaccharide polymers, locust bean gum and gellan gum, have been fabricated and exhibited excellent self-healing, thermo-processability, and pH-driven shape memory properties.

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Ferris, C. J., L. R. Stevens, K. J. Gilmore, et al. "Peptide modification of purified gellan gum." Journal of Materials Chemistry B 3, no. 6 (2015): 1106–15. http://dx.doi.org/10.1039/c4tb01727g.

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