1
|
Huang H, Yan W, Tan S, Zhao Y, Dong H, Liao W, Shi P, Yang X, He Q. Frontier in gellan gum-based microcapsules obtained by emulsification: Core-shell structure, interaction mechanism, intervention strategies. Int J Biol Macromol 2024; 272:132697. [PMID: 38843607 DOI: 10.1016/j.ijbiomac.2024.132697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 05/17/2024] [Accepted: 05/26/2024] [Indexed: 06/16/2024]
Abstract
As a translucent functional gel with biodegradability, non-toxicity and acid resistance, gellan gum has been widely used in probiotic packaging, drug delivery, wound dressing, metal ion adsorption and other fields in recent years. Because of its remarkable gelation characteristics, gellan gum is suitable as the shell material of microcapsules to encapsulate functional substances, by which the functional components can improve stability and achieve delayed release. In recent years, many academically or commercially reliable products have rapidly emerged, but there is still a lack of relevant reports on in-depth research and systematic summaries regarding the process of microcapsule formation and its corresponding mechanisms. To address this challenge, this review focuses on the formation process and applications of gellan gum-based microcapsules, and details the commonly used preparation methods in microcapsule production. Additionally, it explores the impact of factors such as ion types, ion strength, temperature, pH, and others present in the solution on the performance of the microcapsules. On this basis, it summarizes and analyzes the prospects of gellan gum-based microcapsule products. The comprehensive insights from this review are expected to provide inspiration and design ideas for researchers.
Collapse
Affiliation(s)
- Huihua Huang
- School of Public Health/Food Safety and Health Research Center/BSL-3 Laboratory (Guangdong), Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Wenjing Yan
- School of Public Health/Food Safety and Health Research Center/BSL-3 Laboratory (Guangdong), Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Shuliang Tan
- School of Public Health/Food Safety and Health Research Center/BSL-3 Laboratory (Guangdong), Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Yihui Zhao
- School of Public Health/Food Safety and Health Research Center/BSL-3 Laboratory (Guangdong), Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Hao Dong
- College of Light Industry and Food Sciences, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Wenzhen Liao
- School of Public Health/Food Safety and Health Research Center/BSL-3 Laboratory (Guangdong), Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Pengwei Shi
- Emergency Department, Nanfang Hospital, Southern Medical University, Guangzhou 510640, China
| | - Xingfen Yang
- School of Public Health/Food Safety and Health Research Center/BSL-3 Laboratory (Guangdong), Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Qi He
- School of Public Health/Food Safety and Health Research Center/BSL-3 Laboratory (Guangdong), Southern Medical University, Guangzhou, Guangdong Province 510515, China; South China Hospital, Shenzhen University, Shenzhen 518116, China.
| |
Collapse
|
2
|
Dev MJ, Mahajan GB, Warke RG, Warke GM, Patil TA, Satardekar MR, Dalvi RC, Singhal RS. Mutagenesis enhances gellan gum production by a novel Sphingomonas spp.: upstream optimization, kinetic modeling, and structural and physico-functional evaluation. Int Microbiol 2024; 27:459-476. [PMID: 37495894 DOI: 10.1007/s10123-023-00399-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/11/2023] [Accepted: 07/07/2023] [Indexed: 07/28/2023]
Abstract
Gellan gum (GG) has gained tremendous attention owing to its diversified applications. However, its high production and hence market cost are still a bottleneck in its widespread utilization. In the present study, high GG producing mutant of Sphingomonas spp. was developed by random mutagenesis using ethyl methylsulphonate (EMS) for industrial fermentation and identified as Sphingomonas trueperi after 16S rRNA and matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF-MS) analysis. The fermentation conditions such as pH, temperature, and inoculum ratio were optimized by one factor at a time (OFAT) followed by screening of medium components by the Plackett-Burman statistical design. The most critical nutrients were further optimized by response surface methodology for maximizing GG production. The effect of dissolved oxygen tension in bioreactor on cell growth, substrate consumption, GG production, and batch productivity was elucidated. The highest GG titer (23 ± 2.4 g/L) was attained in optimized medium at 10% inoculum (6.45 ± 0.5 log cfu/mL) under controlled fermentation conditions of pH (7), temperature (30 °C), agitation (300-600 rpm), and aeration (0.5-2.0 SLPM) at 22 ± 2% dissolved oxygen tension in a 10-L bioreactor. Kinetic modeling of optimized batch process revealed that logistic growth model could best explain biomass accumulation, while GG formation and substrate consumption were best explained by Luedeking-Piret and exponential decay model, respectively. Structural and physico-functional features of GG produced by mutant Sphingomonas spp. were characterized by HPLC, FTIR, NMR, DSC, TGA, GPC, SEM, and rheological analysis. The higher productivity (0.51 g/L/h) under optimized fermentation conditions suggests potential consideration of mutant and process for commercial utilization.
Collapse
Affiliation(s)
- Manoj J Dev
- Food Engineering and Technology Department, Institute of Chemical Technology, Mumbai, 400019, India
- Department of Microbiology, HiMedia Laboratories Pvt. Ltd, Mumbai, India
| | - Girish B Mahajan
- Department of Microbiology, HiMedia Laboratories Pvt. Ltd, Mumbai, India
| | - Rahul G Warke
- Department of Microbiology, HiMedia Laboratories Pvt. Ltd, Mumbai, India
| | - Gangadhar M Warke
- Department of Microbiology, HiMedia Laboratories Pvt. Ltd, Mumbai, India
| | - Tanuja A Patil
- Department of Microbiology, HiMedia Laboratories Pvt. Ltd, Mumbai, India
| | - Milan R Satardekar
- Department of Microbiology, HiMedia Laboratories Pvt. Ltd, Mumbai, India
| | - Rachana C Dalvi
- Department of Microbiology, HiMedia Laboratories Pvt. Ltd, Mumbai, India
| | - Rekha S Singhal
- Food Engineering and Technology Department, Institute of Chemical Technology, Mumbai, 400019, India.
| |
Collapse
|
3
|
Tiwari ON, Bobby MN, Kondi V, Halder G, Kargarzadeh H, Ikbal AMA, Bhunia B, Thomas S, Efferth T, Chattopadhyay D, Palit P. Comprehensive review on recent trends and perspectives of natural exo-polysaccharides: Pioneering nano-biotechnological tools. Int J Biol Macromol 2024; 265:130747. [PMID: 38479657 DOI: 10.1016/j.ijbiomac.2024.130747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 02/22/2024] [Accepted: 03/07/2024] [Indexed: 04/18/2024]
Abstract
Exopolysaccharides (EPSs), originating from various microbes, and mushrooms, excel in their conventional role in bioremediation to showcase diverse applications emphasizing nanobiotechnology including nano-drug carriers, nano-excipients, medication and/or cell encapsulation, gene delivery, tissue engineering, diagnostics, and associated treatments. Acknowledged for contributions to adsorption, nutrition, and biomedicine, EPSs are emerging as appealing alternatives to traditional polymers, for biodegradability and biocompatibility. This article shifts away from the conventional utility to delve deeply into the expansive landscape of EPS applications, particularly highlighting their integration into cutting-edge nanobiotechnological methods. Exploring EPS synthesis, extraction, composition, and properties, the discussion emphasizes their structural diversity with molecular weight and heteropolymer compositions. Their role as raw materials for value-added products takes center stage, with critical insights into recent applications in nanobiotechnology. The multifaceted potential, biological relevance, and commercial applicability of EPSs in contemporary research and industry align with the nanotechnological advancements coupled with biotechnological nano-cleansing agents are highlighted. EPS-based nanostructures for biological applications have a bright future ahead of them. Providing crucial information for present and future practices, this review sheds light on how eco-friendly EPSs derived from microbial biomass of terrestrial and aquatic environments can be used to better understand contemporary nanobiotechnology for the benefit of society.
Collapse
Affiliation(s)
- Onkar Nath Tiwari
- Centre for Conservation and Utilization of Blue Green Algae, Division of Microbiology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India.
| | - Md Nazneen Bobby
- Department of Biotechnology, Vignan's Foundation for Science, Technology & Research, Vadlamudi, Andhra Pradesh 522213, India
| | - Vanitha Kondi
- Department of Pharmaceutics, Vishnu Institute of Pharmaceutical Education and Research, Narsapur, Medak 502313, Telangana, India
| | - Gopinath Halder
- Department of Chemical Engineering, National Institute of Technology Durgapur, West Bengal 713209, India
| | - Hanieh Kargarzadeh
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Seinkiewicza 112, 90-363 Lodz, Poland
| | - Abu Md Ashif Ikbal
- Department of Pharmaceutical Sciences, Drug Discovery Research Laboratory, Assam University, Silchar 788011, India
| | - Biswanath Bhunia
- Department of Bio Engineering, National Institute of Technology Agartala, Jirania 799046, India
| | - Sabu Thomas
- School of Nanoscience and Nanotechnology, Mahatma Gandhi University, Priyadarshini Hills, Athirampuzha, Kerala, 686560, India; Department of Chemical Sciences, University of Johannesburg, P.O. Box, 17011, Doornfontein, 2028, Johannesburg, South Africa
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, University of Mainz, Staudinger Weg 5, 55128 Mainz, Germany
| | - Debprasad Chattopadhyay
- ICMR-National Institute of Traditional Medicine, Nehru Nagar, Belagavi 590010, India; School of Life Sciences, Swami Vivekananda University, Barrackpore, Kolkata 700102, India
| | - Partha Palit
- Department of Pharmaceutical Sciences, Drug Discovery Research Laboratory, Assam University, Silchar 788011, India.
| |
Collapse
|
4
|
Abdl Aali RAK, Al-Sahlany STG. Gellan Gum as a Unique Microbial Polysaccharide: Its Characteristics, Synthesis, and Current Application Trends. Gels 2024; 10:183. [PMID: 38534601 DOI: 10.3390/gels10030183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/26/2024] [Accepted: 03/02/2024] [Indexed: 03/28/2024] Open
Abstract
Gellan gum (GG) is a linear, negatively charged exopolysaccharide that is biodegradable and non-toxic. When metallic ions are present, a hard and transparent gel is produced, which remains stable at a low pH. It exhibits high water solubility, can be easily bio-fabricated, demonstrates excellent film/hydrogel formation, is biodegradable, and shows biocompatibility. These characteristics render GG a suitable option for use in food, biomedical, and cosmetic fields. Thus, this review paper offers a concise summary of microbial polysaccharides. Moreover, an in-depth investigation of trends in different facets of GG, such as biosynthesis, chemical composition, and physical and chemical properties, is emphasized. In addition, this paper highlights the process of extracting and purifying GG. Furthermore, an in-depth discussion of the advantages and disadvantages of GG concerning other polysaccharides is presented. Moreover, the utilization of GG across different industries, such as food, medicine, pharmaceuticals, cosmetics, etc., is thoroughly examined and will greatly benefit individuals involved in this field who are seeking fresh opportunities for innovative projects in the future.
Collapse
|
5
|
Sun L, Yue M, Yang L, Ding X, Wang Y, Liu Y, Sun W. Biosynthesis and physicochemical properties of low molecular weight gellan produced by a high-yield mutant of Sphingomonas paucimobilis ATCC 31461. Int J Biol Macromol 2023; 242:124899. [PMID: 37196715 DOI: 10.1016/j.ijbiomac.2023.124899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/04/2023] [Accepted: 05/12/2023] [Indexed: 05/19/2023]
Abstract
Gellan gum (GG) is used in many industries. Here, we obtained a low molecular weight GG (L-GG) directly produced by M155, the high-yield mutant strain of Sphingomonas paucimobilis ATCC 31461, which was selected using UV-ARTP combined mutagenesis. The molecular weight of L-GG was 44.6 % lesser than that of the initial GG (I-GG), and the GG yield increased by 24 %. The monosaccharide composition and Fourier transform-infrared spectroscopic patterns of L-GG were similar to those of I-GG, which indicated that the decrease in the molecular weight of L-GG was probably because of reduction in the degree of polymerization. In addition, microstructural analysis revealed that the surface of L-GG was rougher, with smaller pores and tighter network, than that of I-GG. L-GG showed low hardness, gumminess, and chewiness, which are indicative of better taste. The results of rheological analysis revealed that the L-GG solution is a typical non-Newtonian fluid with low viscoelasticity, which exhibited stable dynamic viscoelasticity within 20-65 °C. To the best of our knowledge, this is the first report of direct biosynthesis of low molecular weight GG during fermentation, which will reduce the manufacturing costs. Our observations provide a reference for precise and expanded applications of GG.
Collapse
Affiliation(s)
- Ling Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Meixiang Yue
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Lei Yang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xialiang Ding
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yazhen Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuhan Liu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Wenjing Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| |
Collapse
|
6
|
da Silva DA, Brasil DDSB, Cunha EJDS, Aires GCM, da Costa RA, do Rego JDAR, Pena RDS. Structural and Thermal Characteristics of Buriti Tree Gum (Mauritia flexuosa). Polymers (Basel) 2023; 15:polym15071662. [PMID: 37050276 PMCID: PMC10097139 DOI: 10.3390/polym15071662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/18/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
A polysaccharide was isolated from the exudate of a buriti tree trunk (Mauritia flexuosa). The molecular structure, thermal stability, morphology, crystallinity, and elemental composition of the product were investigated through spectroscopic techniques, such as Fourier-transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR 1H and 13C), and energy-dispersive X-ray spectroscopy (EDS); thermogravimetric analysis (TG), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and X-ray diffraction (XRD). In addition to NMR molecular modeling studies, were performed to confirm the 1H and 13C chemical shifts to Gal and Xyl conformers. Buriti tree gum (BG) is an arabinogalactan, containing Rha, Ara, Xyl, and Gal, and degrades almost completely (98.5%) at 550 °C and has a maximum degradation peak at 291.97 °C, with a mass loss of 56.33%. In the temperature range of 255–290 °C, the energy involved in the BG degradation process was approximately 17 J/g. DSC indicated a glass transition temperature of 27.2 °C for BG, which had an irregular and heterogeneous morphology, with smooth or crumbling scaly regions, demonstrating the amorphous nature of BG that was confirmed by the XRD standard. EDS revealed the presence of carbon and oxygen, as well as calcium, magnesium, aluminum, silicon, chlorine, and potassium, in the BG composition.
Collapse
|
7
|
Progress and opportunities in Gellan gum-based materials: A review of preparation, characterization and emerging applications. Carbohydr Polym 2023; 311:120782. [PMID: 37028862 DOI: 10.1016/j.carbpol.2023.120782] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023]
Abstract
Gellan gum, a microbial exopolysaccharide, is biodegradable and has potential to fill several key roles in many fields from food to pharmacy, biomedicine and tissue engineering. In order to improve the physicochemical and biological properties of gellan gum, some researchers take advantage of numerous hydroxyl groups and the free carboxyl present in each repeating unit. As a result, design and development of gellan-based materials have advanced significantly. The goal of this review is to provide a summary of the most recent, high-quality research trends that have used gellan gum as a polymeric component in the design of numerous cutting-edge materials with applications in various fields.
Collapse
|
8
|
Batista-Silva J, Gomes D, Barroca-Ferreira J, Gallardo E, Sousa Â, Passarinha LA. Specific Six-Transmembrane Epithelial Antigen of the Prostate 1 Capture with Gellan Gum Microspheres: Design, Optimization and Integration. Int J Mol Sci 2023; 24:ijms24031949. [PMID: 36768273 PMCID: PMC9916199 DOI: 10.3390/ijms24031949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/13/2023] [Accepted: 01/14/2023] [Indexed: 01/20/2023] Open
Abstract
This work demonstrates the potential of calcium- and nickel-crosslinked Gellan Gum (GG) microspheres to capture the Six-Transmembrane Epithelial Antigen of the Prostate 1 (STEAP1) directly from complex Komagataella pastoris mini-bioreactor lysates in a batch method. Calcium-crosslinked microspheres were applied in an ionic exchange strategy, by manipulation of pH and ionic strength, whereas nickel-crosslinked microspheres were applied in an affinity strategy, mirroring a standard immobilized metal affinity chromatography. Both formulations presented small diameters, with appreciable crosslinker content, but calcium-crosslinked microspheres were far smoother. The most promising results were obtained for the ionic strategy, wherein calcium-crosslinked GG microspheres were able to completely bind 0.1% (v/v) DM solubilized STEAP1 in lysate samples (~7 mg/mL). The target protein was eluted in a complexed state at pH 11 with 500 mM NaCl in 10 mM Tris buffer, in a single step with minimal losses. Coupling the batch clarified sample with a co-immunoprecipitation polishing step yields a sample of monomeric STEAP1 with a high degree of purity. For the first time, we demonstrate the potential of a gellan batch method to function as a clarification and primary capture method towards STEAP1, a membrane protein, simplifying and reducing the costs of standard purification workflows.
Collapse
Affiliation(s)
- João Batista-Silva
- CICS-UBI–Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
| | - Diana Gomes
- CICS-UBI–Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Associate Laboratory i4HB–Institute for Health and Bioeconomy, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- UCIBIO–Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Jorge Barroca-Ferreira
- CICS-UBI–Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Associate Laboratory i4HB–Institute for Health and Bioeconomy, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- UCIBIO–Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Eugénia Gallardo
- CICS-UBI–Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Laboratório de Fármaco-Toxicologia–UBIMedical, University of Beira Interior, 6201-284 Covilhã, Portugal
| | - Ângela Sousa
- CICS-UBI–Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
| | - Luís A. Passarinha
- CICS-UBI–Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Associate Laboratory i4HB–Institute for Health and Bioeconomy, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- UCIBIO–Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- Laboratório de Fármaco-Toxicologia–UBIMedical, University of Beira Interior, 6201-284 Covilhã, Portugal
- Correspondence: ; Tel.: +351-275-329-069
| |
Collapse
|
9
|
Sun X, Xing S, Wang S, Zhang X, Yu Y, Wang L. In vitro assembly of chimeric virus-like particles composed of a porcine circovirus 2b capsid protein and a B-cell epitope of infectious bursal disease virus. Biotechnol Lett 2022; 44:429-438. [PMID: 35199255 DOI: 10.1007/s10529-022-03237-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 02/11/2022] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To develop a method for in vitro assembly of recombinant proteins expressed in E. coli into chimeric virus-like particles (cVLPs). RESULTS A fusion protein (Bepi-Cap-A) between capsid protein (Cap) of PCV2b and B cell epitope (Bepi) of IBDV was expressed in E. Coli, and purified. For assembling them into cVLPs (Bepi-Cap-VLP), the Bepi-Cap-A was suspended in buffer C [0.03% ("%" stands for "v/v" unless otherwise indicated) polyethylene glycol, 0.4 M Tris, 10 mM β-mercaptoethanol, 5% glycerol, 0.02% (w/v) gellan gum, 0.1 M glycine, 0.03% Tween 80, 500 mM NaCl], and incubated. After centrifugation, the pellet was resuspended in buffer D [50 mM Na2HPO4, 50 mM NaH2PO4, 0.01% (w/v) gellan gum, 0.05 mM EDTA, 500 mM NaCl, 0.03% Tween 80, pH 6.5], and then dialyzed against dialysis buffer (50 mM Na2HPO4, 50 mM NaH2PO4, 500 mM NaCl, 0.03% Tween 80, pH 6.5). The procedure resulted in typical and immunogenic Bepi-Cap-VLP. CONCLUSIONS The data provide a method which is feasible for in vitro assembly of recombinant proteins into chimeric virus-like particles.
Collapse
Affiliation(s)
- Xiaomeng Sun
- Department of Immunology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, People's Republic of China
- Department of Immunology, School of Changchun Medical College, Changchun, Jilin, 130031, People's Republic of China
| | - Shiyu Xing
- Department of Immunology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, People's Republic of China
| | - Shengnan Wang
- Department of Molecular Biology, College of Basic Medical Sciences and Institute of Pediatrics in the First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130021, People's Republic of China
| | - Xian Zhang
- Department of Molecular Biology, College of Basic Medical Sciences and Institute of Pediatrics in the First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130021, People's Republic of China
| | - Yongli Yu
- Department of Immunology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, People's Republic of China.
| | - Liying Wang
- Department of Molecular Biology, College of Basic Medical Sciences and Institute of Pediatrics in the First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130021, People's Republic of China.
| |
Collapse
|
10
|
A new insight in gellan microspheres application to capture a plasmid DNA vaccine from an Escherichia coli lysate. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
11
|
Ke C, Wei L, Wang M, Li Q, Liu X, Guo Y, Li S. Effect of NaCl addition on the production of welan gum with the UV mutant of Sphingomonas sp. Carbohydr Polym 2021; 265:118110. [PMID: 33966819 DOI: 10.1016/j.carbpol.2021.118110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/07/2021] [Accepted: 04/16/2021] [Indexed: 02/03/2023]
Abstract
Because of its excellent stability, non-toxicity, biodegradability and unique rheology, welan gum can be widely used in various fields, such as petroleum, biomedicine and food products. In this study, a high-yield mutant strain FM01-S09 was screened through two rounds of UV mutagenesis. Remarkably, the production of welan gum could be further increased by adding 4 mM NaCl at 32 h fermentation, reaching 30.12 ± 0.25 g/L (28.66% higher than no adding), and the NaCl-WG solution had stronger structural, impact resistance, and temperature resistance than H2O2-WG and WG solutions. Furthermore, the mechanism by which NaCl promotes welan gum synthesis was also investigated. It was found that cell membrane characteristics, intracellular microenvironment makeup, and key enzyme gene expression levels were significantly altered in different fermentation stages. Therefore, the addition of NaCl could effectively promote the growth and fermentation performance of Sphingomonas sp., providing a novel strategy for cost-effective welan gum production.
Collapse
Affiliation(s)
- Chengzhu Ke
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Lulu Wei
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Miao Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Qiwen Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Xiaoling Liu
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Yuan Guo
- National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning 530004, China
| | - Shubo Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
| |
Collapse
|
12
|
Mohd Nadzir M, Nurhayati RW, Idris FN, Nguyen MH. Biomedical Applications of Bacterial Exopolysaccharides: A Review. Polymers (Basel) 2021; 13:530. [PMID: 33578978 PMCID: PMC7916691 DOI: 10.3390/polym13040530] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 01/28/2021] [Accepted: 02/02/2021] [Indexed: 12/11/2022] Open
Abstract
Bacterial exopolysaccharides (EPSs) are an essential group of compounds secreted by bacteria. These versatile EPSs are utilized individually or in combination with different materials for a broad range of biomedical field functions. The various applications can be explained by the vast number of derivatives with useful properties that can be controlled. This review offers insight on the current research trend of nine commonly used EPSs, their biosynthesis pathways, their characteristics, and the biomedical applications of these relevant bioproducts.
Collapse
Affiliation(s)
- Masrina Mohd Nadzir
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Malaysia;
| | - Retno Wahyu Nurhayati
- Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Depok 16424, Indonesia;
- Stem Cell and Tissue Engineering Research Cluster, Indonesian Medical Education and Research Institute, Faculty of Medicine, Universitas Indonesia, Jl. Salemba Raya No. 6, Jakarta 10430, Indonesia
| | - Farhana Nazira Idris
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Malaysia;
| | - Minh Hong Nguyen
- Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 12116, Vietnam;
- Bioresource Research Center, Phenikaa University, Hanoi 12116, Vietnam
| |
Collapse
|
13
|
Applications of gellan natural polymer microspheres in recombinant catechol-O-methyltransferase direct capture from a Komagataella pastoris lysate. Int J Biol Macromol 2021; 172:186-196. [PMID: 33421470 DOI: 10.1016/j.ijbiomac.2020.12.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/23/2020] [Accepted: 12/31/2020] [Indexed: 11/24/2022]
Abstract
The present work shows the application of nickel- and magnesium-crosslinked gellan microspheres in ionic and affinity capture strategies to directly extract hSCOMT from the complex Komagataella pastoris lysate through a simple batch method. Both formulations present similar morphology, but nickel-crosslinked microspheres present higher crosslinker content and smaller diameters. Four different capture strategies were established, by manipulating the ionic strength, pH, temperature and competing agents' presence. The most promising results for hSCOMT capture and clarification were obtained employing an ionic strategy with nickel-crosslinked microspheres and an affinity strategy with magnesium-crosslinked microspheres at 4 °C. The bioactivity results (200%) and purification degree (70%) of hSCOMT captured by the ionic strategy were more satisfactory probably due to the soft ionic conditions used (100 mM NaCl). For the first time, the gellan polysaccharide versatility was demonstrated in the microsphere application for the direct capture of hSCOMT from a complex lysate, simplifying isolation biotechnological procedures.
Collapse
|
14
|
Khan N, Husain Q, Qayyum N. Enhanced dye decolorization efficiency of gellan gum complexed Ziziphus mauritiana peroxidases in a stirred batch process. Int J Biol Macromol 2020; 165:2000-2009. [DOI: 10.1016/j.ijbiomac.2020.09.250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/31/2020] [Accepted: 09/29/2020] [Indexed: 12/17/2022]
|
15
|
Ding Y, Jiang F, Chen L, Lyu W, Chi Z, Liu C, Chi Z. An Alternative Hard Capsule Prepared with the High Molecular Weight Pullulan and Gellan: Processing, Characterization, and In Vitro Drug Release. Carbohydr Polym 2020; 237:116172. [DOI: 10.1016/j.carbpol.2020.116172] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 03/12/2020] [Accepted: 03/12/2020] [Indexed: 12/11/2022]
|
16
|
Sousa Â, Faria R, Albuquerque T, Bhatt H, Biswas S, Queiroz JA, Costa D. Design of experiments to select triphenylphosphonium-polyplexes with suitable physicochemical properties for mitochondrial gene therapy. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112488] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
17
|
Liu M, Sandmann G, Chen F, Huang J. Enhanced Coproduction of Cell-Bound Zeaxanthin and Secreted Exopolysaccharides by Sphingobium sp. via Metabolic Engineering and Optimized Fermentation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:12228-12236. [PMID: 31638826 DOI: 10.1021/acs.jafc.9b05342] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Zeaxanthin is a value-added carotenoid with wide applications. This study aims to manipulate a generally recognized as safe and carotenoid-producing bacterium, Sphingobium sp., for enhanced production of zeaxanthin and exopolysaccharides. First, whole-genome sequencing and analysis of pathway genes were applied to define the carotenoid pathway in Sphingobium sp. Second, a Sphingobium transformation system was established to engineer metabolite flux into zeaxanthin. By a combination of chemical mutagenesis and removal of bottlenecks of carotenoid biosynthesis via overexpression of three rate-limiting enzymes, the genetically modified Sphingobium DIZ strain produced 21.26 mg/g dry cell weight of zeaxanthin, which was about 4-fold higher than the wild type. Upon optimization of culture conditions, the DIZ strain produced 479.5 mg/L of zeaxanthin with the productivity of 4.99 mg/L/h and 21.9 g/L of exopolysaccharides using a fed-batch fermentation strategy. This study represents the first genetic manipulation of Sphingobium sp., a biotechnologically important bacterium, for high-yield production of value-added metabolites.
Collapse
Affiliation(s)
- Mengmeng Liu
- Key Laboratory of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany , Chinese Academy of Sciences , Kunming 650201 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Gerhard Sandmann
- Institute of Molecular Bioscience , J.W. Goethe Universitat , Max von Laue Str. 9 , Frankfurt 60438 , Germany
| | - Feng Chen
- Institute for Advanced Study , Shenzhen University , Shenzhen 518060 , People's Republic of China
| | - Junchao Huang
- Key Laboratory of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany , Chinese Academy of Sciences , Kunming 650201 , People's Republic of China
| |
Collapse
|