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Bai Y, Tan R, Yan Y, Chen T, Feng Y, Sun Q, Li J, Wang Y, Liu F, Wang J, Zhang Y, Cheng X, Wu G. Effect of addition of γ-poly glutamic acid on bacterial nanocellulose production under agitated culture conditions. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2024; 17:68. [PMID: 38802837 PMCID: PMC11129402 DOI: 10.1186/s13068-024-02515-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 05/07/2024] [Indexed: 05/29/2024]
Abstract
BACKGROUND Bacterial nanocellulose (BNC), a natural polymer material, gained significant popularity among researchers and industry. It has great potential in areas, such as textile manufacturing, fiber-based paper, and packaging products, food industry, biomedical materials, and advanced functional bionanocomposites. The main current fermentation methods for BNC involved static culture, as the agitated culture methods had lower raw material conversion rates and resulted in non-uniform product formation. Currently, studies have shown that the production of BNC can be enhanced by incorporating specific additives into the culture medium. These additives included organic acids or polysaccharides. γ-Polyglutamic acid (γ-PGA), known for its high polymerization, excellent biodegradability, and environmental friendliness, has found extensive application in various industries including daily chemicals, medicine, food, and agriculture. RESULTS In this particular study, 0.15 g/L of γ-PGA was incorporated as a medium additive to cultivate BNC under agitated culture conditions of 120 rpm and 30 ℃. The BNC production increased remarkably by 209% in the medium with 0.15 g/L γ-PGA and initial pH of 5.0 compared to that in the standard medium, and BNC production increased by 7.3% in the medium with 0.06 g/L γ-PGA. The addition of γ-PGA as a medium additive resulted in significant improvements in BNC production. Similarly, at initial pH levels of 4.0 and 6.0, the BNC production also increased by 39.3% and 102.3%, respectively. To assess the characteristics of the BNC products, scanning electron microscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis were used. The average diameter of BNC fibers, which was prepared from the medium adding 0.15 g/L γ-PGA, was twice thicker than that of BNC fibers prepared from the control culture medium. That might be because that polyglutamic acid relieved the BNC synthesis from the shear stress from the agitation. CONCLUSIONS This experiment held great significance as it explored the use of a novel medium additive, γ-PGA, to improve the production and the glucose conversion rate in BNC fermentation. And the BNC fibers became thicker, with better thermal stability, higher crystallinity, and higher degree of polymerization (DPv). These findings lay a solid foundation for future large-scale fermentation production of BNC using bioreactors.
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Affiliation(s)
- Yang Bai
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, 264025, China
| | - Ran Tan
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, 264025, China
| | - Yiran Yan
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, 264025, China
| | - Tao Chen
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, 264025, China
| | - Yetong Feng
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, 264025, China
| | - Qiwei Sun
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, 264025, China
| | - Jiakun Li
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, 264025, China
| | - Yifei Wang
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, 264025, China
| | - Futao Liu
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, 264025, China
| | - Jingwen Wang
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, 264025, China
| | - Yao Zhang
- School of Chemistry and Materials Science, Ludong University, Yantai, 264025, China
| | - Xianhao Cheng
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, 264025, China
| | - Guochao Wu
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, 264025, China.
- Key Laboratory of Molecular Module-Based Breeding of High Yield and Abiotic Resistant Plants in Universities of Shandong, School of Agriculture, Ludong University, Yantai, 264025, China.
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Sangta J, Ruksiriwanich W, Chittasupho C, Sringarm K, Rachtanapun P, Bakshani C, Willats W, Sommano S. Utilization of the sugar fraction from Arabica coffee pulp as a carbon source for bacteria producing cellulose and cytotoxicity with human keratinocyte. Prep Biochem Biotechnol 2024; 54:587-596. [PMID: 37747818 DOI: 10.1080/10826068.2023.2258195] [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] [Indexed: 09/27/2023]
Abstract
Coffee pulp (CP), a by-product of coffee production, is an underutilized resource with significant potential value. CP contains monosaccharides that can serve as an ideal carbon source for bacterial cultivation, enabling the production of value-added components such as medical-grade cellulose. Herein, we extracted the sugar fraction from Arabica CP and used it as a supplement in a growing media of a bacteria cellulose (BC), Komagataeibacter nataicola. The BC was then characterized and tested for cytotoxicity. The CP sugar fraction yielded approximately 7% (w/w) and contained glucose at 4.52 mg/g extract and fructose at 7.34 mg/g extract. Supplementing the sugar fraction at different concentrations (0.1, 0.3, 0.5, 0.7, and 1 g/10 mL) in sterilized glucose yeast extract broth, the highest yield of cellulose (0.0020 g) occurred at 0.3 g/10 mL. It possessed similar physicochemical attributes to the BC using glucose, with some notable improvements in fine structure and arrangement of the functional groups. In cytotoxicity assessments on HaCaT keratinocyte cells, bacterial cellulose concentrations of 2-1000 µg/mL exhibited viability of ≥ 80%. However, higher concentrations were toxic. This research innovatively uses coffee pulp for bacterial cellulose, aligning with the principles of a bio-circular economy that focuses on sustainable biomass utilization.
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Affiliation(s)
- Jiraporn Sangta
- Interdisciplinary Program in Biotechnology, Graduate School, Chiang Mai University, Chiang Mai, Thailand
- Plant Bioactive Compound Laboratory, Faculty of Agriculture, Chiang Mai University, Chiang Mai, Thailand
| | - Warintorn Ruksiriwanich
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Agro Bio-Circular-Green Industry (Agro BCG), Agro-Industry, Chiang Mai University, Chiang Mai, Thailand
| | - Chuda Chittasupho
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Korawan Sringarm
- Center of Excellence in Agro Bio-Circular-Green Industry (Agro BCG), Agro-Industry, Chiang Mai University, Chiang Mai, Thailand
- Department of Animal and Aquatic Science, Faculty of Agriculture, Chiang Mai University, Chiang Mai, Thailand
| | - Pornchai Rachtanapun
- Center of Excellence in Agro Bio-Circular-Green Industry (Agro BCG), Agro-Industry, Chiang Mai University, Chiang Mai, Thailand
- Division of Packaging Technology, Faculty of Agro-Industry, School of Agro-Industry, Chiang Mai University, Chiang Mai, Thailand
| | - Cassie Bakshani
- College of Medical and Dental Sciences, Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK
| | - William Willats
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Sarana Sommano
- Plant Bioactive Compound Laboratory, Faculty of Agriculture, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Agro Bio-Circular-Green Industry (Agro BCG), Agro-Industry, Chiang Mai University, Chiang Mai, Thailand
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Tan R, Sun Q, Yan Y, Chen T, Wang Y, Li J, Guo X, Fan Z, Zhang Y, Chen L, Wu G, Wu N. Co-production of pigment and high value-added bacterial nanocellulose from Suaeda salsa biomass with improved efficiency of enzymatic saccharification and fermentation. Front Bioeng Biotechnol 2023; 11:1307674. [PMID: 38098970 PMCID: PMC10720727 DOI: 10.3389/fbioe.2023.1307674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 11/21/2023] [Indexed: 12/17/2023] Open
Abstract
This study evaluated the co-production of pigment and bacterial nanocellulose (BNC) from S. salsa biomass. The extraction of the beet red pigment reduced the salts and flavonoids contents by 82.7%-100%, promoting the efficiencies of enzymatic saccharification of the biomass and the fermentation of BNC from the hydrolysate. SEM analysis revealed that the extraction process disrupted the lignocellulosic fiber structure, and the chemical analysis revealed the lessened cellulase inhibitors, consequently facilitating enzymatic saccharification for 10.4 times. BNC producing strains were found to be hyper-sensitive to NaCl stress, produced up to 400.4% more BNC from the hydrolysate after the extraction. The fermentation results of BNC indicated that the LDU-A strain yielded 2.116 g/L and 0.539 g/L in ES-M and NES-M, respectively. In comparison to the control, the yield in ES-M increased by approximately 20.0%, while the enhancement in NES-M was more significant, reaching 292.6%. After conducting a comprehensive characterization of BNC derived from S. salsa through Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and Thermogravimetric Analysis (TGA), the average fiber diameter distribution of these four BNC materials ranges from 22.23 to 33.03 nanometers, with a crystallinity range of 77%-90%. Additionally, they exhibit a consistent trend during the thermal degradation process, further emphasizing their stability in high-temperature environments and similar thermal properties. Our study found an efficient co-production approach of pigment and BNC from S. salsa biomass. Pigment extraction made biomass more physically and chemically digestible to cellulase, and significantly improved BNC productivity and quality.
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Affiliation(s)
- Ran Tan
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, China
| | - Qiwei Sun
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, China
| | - Yiran Yan
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, China
| | - Tao Chen
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, China
| | - Yifei Wang
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, China
| | - Jiakun Li
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, China
| | - Xiaohong Guo
- School of Resources and Environmental Engineering, Ludong University, Yantai, China
| | - Zuoqing Fan
- Shandong Institute of Sericulture, Yantai, China
| | - Yao Zhang
- School of Chemistry and Materials Science, Ludong University, Yantai, China
| | - Linxu Chen
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Guochao Wu
- Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai, China
- Key Laboratory of Molecular Module-Based Breeding of High Yield and Abiotic Resistant Plants in Universities of Shandong, School of Agriculture, Ludong University, Yantai, China
| | - Nan Wu
- School of Resources and Environmental Engineering, Ludong University, Yantai, China
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Ahmed A, Adak B, Faruk MO, Mukhopadhyay S. Nanocellulose Coupled 2D Graphene Nanostructures: Emerging Paradigm for Sustainable Functional Applications. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01830] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Abbas Ahmed
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
- Department of Textile and Fiber Engineering, Indian Institute of Technology, New Delhi 110016, India
- National Institute of Textile Engineering and Research, University of Dhaka, Dhaka 1000, Bangladesh
| | - Bapan Adak
- Product Development Department, Kusumgar Corporates Pvt. Ltd., Vapi, Valsad, Gujarat 396195, India
| | - Md. Omar Faruk
- National Institute of Textile Engineering and Research, University of Dhaka, Dhaka 1000, Bangladesh
| | - Samrat Mukhopadhyay
- Department of Textile and Fiber Engineering, Indian Institute of Technology, New Delhi 110016, India
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Fast-Growing Bacterial Cellulose with Outstanding Mechanical Properties via Cross-Linking by Multivalent Ions. MATERIALS 2020; 13:ma13122838. [PMID: 32599920 PMCID: PMC7344470 DOI: 10.3390/ma13122838] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 06/18/2020] [Accepted: 06/22/2020] [Indexed: 12/30/2022]
Abstract
Bacterial cellulose is an organic product of certain bacterias’ metabolism. It differs from plant cellulose by exhibiting a high strength and purity, making it especially interesting for flexible electronics, membranes for water purification, tissue engineering for humans or even as artificial skin and ligaments for robotic devices. However, bacterial cellulose’s naturally slow growth rate has limited its large-scale applicability to date. Titanium (IV) bis-(ammonium lactato) dihydroxide is shown to be a powerful tool to boost the growth rate of bacterial cellulose production by more than one order of magnitude and that it simultaneously serves as a precursor for the Ti4+-coordinated cross-linking of the fibers during membrane formation. The latter results in an almost two-fold increase in Young’s modulus (~18.59 GPa), a more than three-fold increase in tensile strength (~436.70 MPa) and even a four-fold increase in toughness (~6.81 MJ m−³), as compared to the pure bacterial cellulose membranes.
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Sämfors S, Karlsson K, Sundberg J, Markstedt K, Gatenholm P. Biofabrication of bacterial nanocellulose scaffolds with complex vascular structure. Biofabrication 2019; 11:045010. [DOI: 10.1088/1758-5090/ab2b4f] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Molina-Ramírez C, Enciso C, Torres-Taborda M, Zuluaga R, Gañán P, Rojas OJ, Castro C. Effects of alternative energy sources on bacterial cellulose characteristics produced by Komagataeibacter medellinensis. Int J Biol Macromol 2018; 117:735-741. [PMID: 29847783 DOI: 10.1016/j.ijbiomac.2018.05.195] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 05/25/2018] [Accepted: 05/26/2018] [Indexed: 12/27/2022]
Abstract
Bacterial cellulose (BC) was produced by Komagataeibacter medellinensis using Hestrin and Schramm modified medium in the presence of alternative energy sources (AES), such as ethanol and acetic acid, to explore the effect of AES on the characteristics and properties of the resulting BC. In this study, the physicochemical and structural characteristics of the obtained BC were determined using Fourier-transform infrared spectroscopy, X-ray diffraction spectrometry, thermogravimetric analysis, and mechanical testing analysis. Ethanol and acetic acid (at 0.1 wt%) were proven to improve the BC yield by K. medellinensis by 279% and 222%, respectively. However, the crystallinity index (%), the degree of polymerization, and maximum rate of degradation temperatures decreased by 9.2%, 36%, and 4.96%, respectively, by the addition of ethanol and by 7.2%, 27%, and 4.21%, respectively, by the addition of acetic acid. The significance of this work, lies on the fact that there is not any report about how BC properties change when substances like ethanol or acetic acid are added to culture medium, and which is the mechanism that provokes those changes, that in our case we could demonstrate the relationship of a higher BC production rate (provoked by ethanol and acetic acid adding) and changes in BC properties.
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Affiliation(s)
- Carlos Molina-Ramírez
- Facultad de Ingeniería Química, Universidad Pontificia Bolivariana, Circular 1°, No 70-01, Medellín 050031, Colombia.
| | - Carla Enciso
- Departamento de Desarrollo e Innovación, Nutreo, Parque empresarial Multicentro, Bodega 9-10, Rionegro, Colombia
| | - Mabel Torres-Taborda
- Facultad de Ingeniería Química, Universidad Pontificia Bolivariana, Circular 1°, No 70-01, Medellín 050031, Colombia
| | - Robin Zuluaga
- Departamento de Desarrollo e Innovación, Nutreo, Parque empresarial Multicentro, Bodega 9-10, Rionegro, Colombia
| | - Piedad Gañán
- Facultad de Ingeniería Química, Universidad Pontificia Bolivariana, Circular 1°, No 70-01, Medellín 050031, Colombia
| | - Orlando J Rojas
- Facultad de Ingeniería Agroindustrial, Universidad Pontificia Bolivariana, Circular 1°, No 70-01, Medellín 050031, Colombia
| | - Cristina Castro
- Biobased Colloids and Materials Group (BiCMat), Department of Bioproducts and Biosystems, Aalto University, School of Chemical Engineering, Espoo 02150, Finland
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Rogalsky S, Bardeau JF, Makhno S, Babkina N, Tarasyuk O, Cherniavska T, Orlovska I, Kozyrovska N, Brovko O. New proton conducting membrane based on bacterial cellulose/polyaniline nanocomposite film impregnated with guanidinium-based ionic liquid. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.03.032] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Penttilä PA, Imai T, Sugiyama J. Fibrillar assembly of bacterial cellulose in the presence of wood-based hemicelluloses. Int J Biol Macromol 2017; 102:111-118. [PMID: 28392383 DOI: 10.1016/j.ijbiomac.2017.04.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 03/31/2017] [Accepted: 04/03/2017] [Indexed: 01/19/2023]
Abstract
Composite materials mimicking the plant cell wall structure were made by culturing cellulose-producing bacteria together with secondary-wall hemicelluloses from wood. The effects of spruce galactoglucomannan (GGM) and beech xylan on the nanoscale morphology of bacterial cellulose were studied in the original, hydrated state with small-angle X-ray scattering (SAXS). The SAXS intensities were fitted with a model covering multiple levels of the hierarchical structure. Additional information on the structure of dried samples was obtained using scanning and transmission electron microscopy and infra-red spectroscopy. Both hemicelluloses induced a partial conversion of the cellulose crystal structure from Iα to Iβ and a reduction of the cross-sectional dimensions of the cellulose microfibrils, thereby affecting also their packing into bundles. The differences were more pronounced in samples with xylan instead of GGM, and they became more significant with higher hemicellulose concentrations.
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Affiliation(s)
- Paavo A Penttilä
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho, Uji 611-0011, Japan
| | - Tomoya Imai
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho, Uji 611-0011, Japan
| | - Junji Sugiyama
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho, Uji 611-0011, Japan
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Martínez-Sanz M, Mikkelsen D, Flanagan BM, Rehm C, de Campo L, Gidley MJ, Gilbert EP. Investigation of the micro- and nano-scale architecture of cellulose hydrogels with plant cell wall polysaccharides: A combined USANS/SANS study. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.07.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Martínez-Sanz M, Mikkelsen D, Flanagan B, Gidley MJ, Gilbert EP. Multi-scale model for the hierarchical architecture of native cellulose hydrogels. Carbohydr Polym 2016; 147:542-555. [DOI: 10.1016/j.carbpol.2016.03.098] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 03/29/2016] [Accepted: 03/31/2016] [Indexed: 10/22/2022]
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Fan X, Gao Y, He W, Hu H, Tian M, Wang K, Pan S. Production of nano bacterial cellulose from beverage industrial waste of citrus peel and pomace using Komagataeibacter xylinus. Carbohydr Polym 2016; 151:1068-1072. [PMID: 27474656 DOI: 10.1016/j.carbpol.2016.06.062] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 06/09/2016] [Accepted: 06/15/2016] [Indexed: 11/17/2022]
Abstract
Bacterial cellulose (BC) is a high-purity and robust cellulose that is utilised in medicine, consumer goods, and industrial practices. The present study aimed to investigate the suitability of beverage industrial waste for the production of BC by Komagataeibacter xylinus CICC No. 10529 and to study the structural properties of BC films in both citrus peel and pomace enzymolysis (CPPE) and Hestrin-Schramm (HS, Hestrin & Schramm, 1954) media. Under similar experimental conditions, the yield of BC from CPPE medium was 5.7±0.7g/L, which was higher than from HS medium (3.9±0.6g/L). To evaluate the structure of BC, fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC), and colour evaluation using a chroma meter were utilised. The average diameters of BC, obtained from CPPE and HS mediums, were 50nm and 60nm, respectively. The crystallinity index of BC from the CPPE medium was approximately 63%, which was lower than BC produced from the HS medium (65%). The two varieties of BC showed no significant differences in relation to their colour parameters. Therefore, BC production from CPPE medium had similar properties to BC from HS medium, but it is more environmentally friendly and cheaper to produce.
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Affiliation(s)
- Xin Fan
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Yue Gao
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Wanying He
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Hao Hu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Ming Tian
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Kexing Wang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Siyi Pan
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.
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Martínez-Sanz M, Gidley MJ, Gilbert EP. Hierarchical architecture of bacterial cellulose and composite plant cell wall polysaccharide hydrogels using small angle neutron scattering. SOFT MATTER 2016; 12:1534-49. [PMID: 26658920 DOI: 10.1039/c5sm02085a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Small angle neutron scattering (SANS) has been applied to characterise the structure of pure bacterial cellulose hydrogels, and composites thereof, with two plant cell wall polysaccharides (arabinoxylan and xyloglucan). Conventional published models, which assume that bacterial cellulose ribbons are solid one-phase systems, fail to adequately describe the SANS data of pure bacterial cellulose. Fitting of the neutron scattering profiles instead suggests that the sub-structure of cellulose microfibrils contained within the ribbons results in the creation of regions with distinct values of neutron scattering length density, when the hydrogels are subjected to H2O/D2O exchange. This may be represented within a core-shell formalism that considers the cellulose ribbons to comprise a core containing impermeable crystallites surrounded by a network of paracrystalline cellulose and tightly bound water, and a shell containing only paracrystalline cellulose and water. Accordingly, a fitting function comprising the sum of a power-law term to account for the large scale structure of intertwined ribbons, plus a core-shell cylinder with polydisperse radius, has been applied; it is demonstrated to simultaneously describe all SANS contrast variation data of pure and composite bacterial cellulose hydrogels. In addition, the resultant fitting parameters indicate distinct interaction mechanisms of arabinoxylan and xyloglucan with cellulose, revealing the potential of this approach to investigate the role of different plant cell wall polysaccharides on the biosynthesis process of cellulose.
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Affiliation(s)
- Marta Martínez-Sanz
- Bragg Institute, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
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Production of nano bacterial cellulose from waste water of candied jujube-processing industry using Acetobacter xylinum. Carbohydr Polym 2015; 120:115-9. [DOI: 10.1016/j.carbpol.2014.11.061] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 11/12/2014] [Accepted: 11/29/2014] [Indexed: 11/20/2022]
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15
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Valera MJ, Torija MJ, Mas A, Mateo E. Cellulose production and cellulose synthase gene detection in acetic acid bacteria. Appl Microbiol Biotechnol 2014; 99:1349-61. [DOI: 10.1007/s00253-014-6198-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 10/24/2014] [Accepted: 10/27/2014] [Indexed: 02/07/2023]
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Luo H, Zhang J, Xiong G, Wan Y. Evolution of morphology of bacterial cellulose scaffolds during early culture. Carbohydr Polym 2014; 111:722-8. [PMID: 25037408 DOI: 10.1016/j.carbpol.2014.04.097] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 03/03/2014] [Accepted: 04/28/2014] [Indexed: 11/25/2022]
Abstract
Morphological characteristics of a fibrous tissue engineering (TE) scaffold are key parameters affecting cell behavior. However, no study regarding the evolution of morphology of bacterial cellulose (BC) scaffolds during the culture process has been reported to date. In this work, BC scaffolds cultured for different times starting from 0.5h were characterized. The results demonstrated that the formation of an integrated scaffold and its 3D network structure, porosity, fiber diameter, light transmittance, and the morphology of hydroxyapatite (HAp)-deposited BC scaffolds changed with culture time. However, the surface and crystal structure of BC fibers did not change with culture time and no difference was found in the crystal structure of HAp deposited on BC templates regardless of BC culture time. The findings presented herein suggest that proper selection of culture time can potentially enhance the biological function of BC TE scaffold by optimizing its morphological characteristics.
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Affiliation(s)
- Honglin Luo
- School of Materials Science and Engineering, Tianjin University, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin 300072, PR China
| | - Jing Zhang
- School of Materials Science and Engineering, Tianjin University, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin 300072, PR China
| | - Guangyao Xiong
- School of Mechanical and Electrical Engineering, East China Jiaotong University, Nanchang 330013, Jiangxi, PR China
| | - Yizao Wan
- School of Materials Science and Engineering, Tianjin University, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin 300072, PR China.
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Wang Y, Yadav S, Heinlein T, Konjik V, Breitzke H, Buntkowsky G, Schneider JJ, Zhang K. Ultra-light nanocomposite aerogels of bacterial cellulose and reduced graphene oxide for specific absorption and separation of organic liquids. RSC Adv 2014. [DOI: 10.1039/c4ra02168a] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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